changes.txt revision 198237
1117521Snjl---------------------------------------- 2198237Sjkim13 October 2009. Summary of changes for version 20091013: 3197104Sjkim 4197104SjkimThis release is available at www.acpica.org/downloads 5197104Sjkim 6197104Sjkim1) ACPI CA Core Subsystem: 7197104Sjkim 8198237SjkimFixed a problem where an Operation Region _REG method could be executed more 9198237Sjkimthan once. If a custom address space handler is installed by the host before 10198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 11198237Sjkim_REG methods for that address space could be executed twice. This change 12198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 13198237Sjkim 14198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 15198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 16198237Sjkimoperand object was leaked. Lin Ming. 17198237Sjkim 18198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 19198237Sjkimreturn value is defined as a Field object in the AML, and the field 20198237Sjkimsize is less than or equal to the default width of an integer (32 or 64),_MAT 21198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 22198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 23198237Sjkim 24198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 25198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 26198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 27198237Sjkimambiguity in the ACPI specification. The field should always be a string. 28198237SjkimACPICA now automatically repairs this problem by returning a NULL string 29198237Sjkimwithin the returned Package. ACPICA BZ 807. 30198237Sjkim 31198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 32198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 33198237Sjkimdebug version of the code includes the debug output trace mechanism and has a 34198237Sjkimmuch larger code and data size. 35198237Sjkim 36198237Sjkim Previous Release: 37198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 38198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 39198237Sjkim Current Release: 40198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 41198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 42198237Sjkim 43198237Sjkim2) iASL Compiler/Disassembler and Tools: 44198237Sjkim 45198237SjkimDisassembler: Fixed a problem where references to external symbols that 46198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 47198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 48198237Sjkim 49198237SjkimDisassembler: Restructured the code so that all functions that handle 50198237Sjkimexternal symbols are in a single module. One new file is added, 51198237Sjkimcommon/dmextern.c. 52198237Sjkim 53198237SjkimAML Debugger: Added a max count argument for the Batch command (which 54198237Sjkimexecutes multiple predefined methods within the namespace.) 55198237Sjkim 56198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 57198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 58198237Sjkim 59198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 60198237Sjkimfiles. 61198237Sjkim 62198237Sjkim---------------------------------------- 63198237Sjkim03 September 2009. Summary of changes for version 20090903: 64198237Sjkim 65198237Sjkim1) ACPI CA Core Subsystem: 66198237Sjkim 67197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 68197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 69197104Sjkimtable load time. This support is in addition to the automatic execution of 70197104Sjkim\_SB._INI. Lin Ming. 71197104Sjkim 72197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 73197104Sjkimthe package initializer list is longer than the defined size of the package. 74197104SjkimThis apparently can only happen if the BIOS changes the package size on the 75197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 76197104Sjkiminterpreter will truncate the package to the defined size (and issue an error 77197104Sjkimmessage), but previously could leave the extra objects undeleted if they were 78197104Sjkimpre-created during the argument processing (such is the case if the package 79197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 80197104Sjkim 81197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 82197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 83197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 84197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 85197104Sjkim 86197104SjkimRemoved an extraneous error message for ASL constructs of the form 87197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 88197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 89197104Sjkimemitted when they are encountered. ACPICA BZ 785. 90197104Sjkim 91197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 92197104SjkimPackage object. _DSM can return any type of object, so validation on the 93197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 94197104Sjkim 95197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 96197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 97197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 98197104Sjkimmuch larger code and data size. 99197104Sjkim 100197104Sjkim Previous Release: 101197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 102197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 103197104Sjkim Current Release: 104197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 105197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 106197104Sjkim 107197104Sjkim2) iASL Compiler/Disassembler and Tools: 108197104Sjkim 109197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 110197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 111197104SjkimACPICA BZ 738. 112197104Sjkim 113197104SjkimiASL: Implemented the -I option to specify additional search directories for 114197104Sjkiminclude files. Allows multiple additional search paths for include files. 115197104SjkimDirectories are searched in the order specified on the command line (after 116197104Sjkimthe local directory is searched.) ACPICA BZ 800. 117197104Sjkim 118197104SjkimiASL: Fixed a problem where the full pathname for include files was not 119197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 120197104Sjkimproperly. ACPICA BZ 765. 121197104Sjkim 122197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 123197104Sjkimcontaining additional command line options. ACPICA BZ 801. 124197104Sjkim 125197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 126197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 127197104Sjkimpathname. These features allow all machine tables to be easily loaded and 128197104Sjkimdebugged together. ACPICA BZ 804. 129197104Sjkim 130197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 131197104Sjkimsubtables. 132197104Sjkim 133197104Sjkim---------------------------------------- 134197104Sjkim30 July 2009. Summary of changes for version 20090730: 135197104Sjkim 136197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 137197104Sjkim 138197104Sjkim1) ACPI CA Core Subsystem: 139197104Sjkim 140197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 141197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 142197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 143197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 144197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 145197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 146197104Sjkim 147197104SjkimACPI 4.0: Implemented predefined name validation for all new names. There are 148197104Sjkim31 new names in ACPI 4.0. The predefined validation module was split into two 149197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 150197104Sjkim 151197104SjkimImplemented support for so-called "module-level executable code". This is 152197104Sjkimexecutable AML code that exists outside of any control method and is intended 153197104Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this type 154197104Sjkimof code still exists and is apparently still being created. Blocks of this 155197104Sjkimcode are now detected and executed as intended. Currently, the code blocks 156197104Sjkimmust exist under either an If, Else, or While construct; these are the 157197104Sjkimtypical cases seen in the field. ACPICA BZ 762. Lin Ming. 158197104Sjkim 159197104SjkimImplemented an automatic dynamic repair for predefined names that return 160197104Sjkimnested Package objects. This applies to predefined names that are defined to 161197104Sjkimreturn a variable-length Package of sub-packages. If the number of sub- 162197104Sjkimpackages is one, BIOS code is occasionally seen that creates a simple single 163197104Sjkimpackage with no sub-packages. This code attempts to fix the problem by 164197104Sjkimwrapping a new package object around the existing package. These methods can 165197104Sjkimbe repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 166197104Sjkim790. 167197104Sjkim 168197104SjkimFixed a regression introduced in 20090625 for the AcpiGetDevices interface. 169197104SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA 170197104SjkimBZ 793. 171197104Sjkim 172197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 173197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 174197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 175197104Sjkiminterfaces. 176197104Sjkim 177197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 178197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 179197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 180197104Sjkim(However, some hosts already delete the code that writes this bit, and the 181197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 182197104Sjkim 183197104SjkimFixed a problem where AcpiTerminate could fault if inadvertently called twice 184197104Sjkimin succession. ACPICA BZ 795. 185197104Sjkim 186197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 187197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 188197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 189197104Sjkimmuch larger code and data size. 190197104Sjkim 191197104Sjkim Previous Release: 192197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 193197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 194197104Sjkim Current Release: 195197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 196197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 197197104Sjkim 198197104Sjkim2) iASL Compiler/Disassembler and Tools: 199197104Sjkim 200197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 201197104Sjkimchanges to existing tables. ACPICA BZ 775. 202197104Sjkim 203197104Sjkim---------------------------------------- 204197104Sjkim25 June 2009. Summary of changes for version 20090625: 205197104Sjkim 206197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 207197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 208197104Sjkimcontinue for the next few releases. 209197104Sjkim 210197104Sjkim1) ACPI CA Core Subsystem: 211197104Sjkim 212197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 213197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 214197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 215197104Sjkim773. Lin Ming. 216197104Sjkim 217197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 218197104Sjkimsupport in both the header files and the disassembler. 219197104Sjkim 220197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 221197104SjkimChanges include: 222197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 223197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 224197104Sjkim - Call the _SxW power methods on behalf of a device object. 225197104Sjkim - Determine if a device is a PCI root bridge. 226197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 227197104SjkimThese changes will require an update to all callers of this interface. See 228197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 229197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 230197104Sjkim 231197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 232197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 233197104Sjkimorder to support new ACPI 4.0 tables. These changes will require an update to 234197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 235197104Sjkimdetails. ACPICA BZ 768. 236197104Sjkim 237197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 238197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 239197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 240197104Sjkimparameter, this was removed. ACPICA BZ 778. 241197104Sjkim 242197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 243197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 244197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 245197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 246197104Sjkim 247197104SjkimFixed a problem with predefined method repair code where the code that 248197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 249197104Sjkimthe first time the predefined method is called. The mechanism that disables 250197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 251197104SjkimACPICA BZ 781. 252197104Sjkim 253197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 254197104Sjkimbuffer is automatically converted to an expected string object. 255197104Sjkim 256197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 257197104Sjkimtree head. ACPICA BZ 776. 258197104Sjkim 259197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 260197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 261197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 262197104Sjkimmuch larger code and data size. 263197104Sjkim 264197104Sjkim Previous Release: 265197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 266197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 267197104Sjkim Current Release: 268197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 269197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 270197104Sjkim 271197104Sjkim2) iASL Compiler/Disassembler and Tools: 272197104Sjkim 273197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 274197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 275197104Sjkim 276197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 277197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 278197104Sjkim 279197104Sjkim---------------------------------------- 280193267Sjkim21 May 2009. Summary of changes for version 20090521: 281193267Sjkim 282193267Sjkim1) ACPI CA Core Subsystem: 283193267Sjkim 284193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 285193267SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be 286193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 287193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 288193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 289193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 290193267Sjkimattempts to preserve this bit. 291193267Sjkim 292193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 293193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 294193267Sjkimensure that each package element is actually a sub-package. 295193267Sjkim 296193267SjkimImplemented a new interface to install or override a single control method, 297193267SjkimAcpiInstallMethod. This interface is useful when debugging in order to repair 298193267Sjkiman existing method or to install a missing method without having to override 299193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 300193267Sjkimexamples. Lin Ming, Bob Moore. 301193267Sjkim 302193267SjkimFixed several reference count issues with the DdbHandle object that is 303193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 304193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 305193267SjkimThis is needed because the handle itself may not be deleted after the table 306193267Sjkimunload, depending on whether it has been stored in a named object by the 307193267Sjkimcaller. Lin Ming. 308193267Sjkim 309193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 310193267Sjkimmutexes of the same sync level are acquired but then not released in strict 311193267Sjkimopposite order, the internally maintained Current Sync Level becomes confused 312193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 313193267Sjkim 314193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 315193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 316193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 317193267Sjkimsame as the current sync level. This makes more sense than the previous rule 318193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 319193267Sjkimspecification. 320193267Sjkim 321193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 322193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 323193267SjkimBaumann. 324193267Sjkim 325193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 326193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 327193267Sjkimthrough the installed region handler as they should. 328193267Sjkim 329193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 330193267Sjkimand reduced code for this frequently used function. 331193267Sjkim 332193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 333193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 334193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 335193267Sjkimmuch larger code and data size. 336193267Sjkim 337193267Sjkim Previous Release: 338193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 339193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 340193267Sjkim Current Release: 341193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 342193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 343193267Sjkim 344193267Sjkim2) iASL Compiler/Disassembler and Tools: 345193267Sjkim 346193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 347193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 348193267Sjkimafter an invalid sub-table ID. 349193267Sjkim 350193267Sjkim---------------------------------------- 351193267Sjkim22 April 2009. Summary of changes for version 20090422: 352193267Sjkim 353193267Sjkim1) ACPI CA Core Subsystem: 354193267Sjkim 355193267SjkimFixed a compatibility issue with the recently released I/O port protection 356193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 357193267Sjkimsimply ignore the request and do not return an exception (allow the control 358193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 359193267Sjkimprotected port, read/write the individual ports that are not protected. Linux 360193267SjkimBZ 13036. Lin Ming 361193267Sjkim 362193267SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it actually 363193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 364193267SjkimACPI-defined behavior. 365193267Sjkim 366193267SjkimFixed several possible warnings related to the use of the configurable 367193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 368193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 369193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 370193267SjkimACPICA BZ 766, 767. 371193267Sjkim 372193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 373193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 374193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 375193267Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile for 376193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 377193267Sjkim 378193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 379193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 380193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 381193267Sjkimmuch larger code and data size. 382193267Sjkim 383193267Sjkim Previous Release: 384193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 385193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 386193267Sjkim Current Release: 387193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 388193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 389193267Sjkim 390193267Sjkim2) iASL Compiler/Disassembler and Tools: 391193267Sjkim 392193267SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on 393193267Sjkimthe 64-bit build. 394193267Sjkim 395193267SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could not 396193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 397193267Sjkim 398193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 399193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 400193267Sjkimbatch compilations. 401193267Sjkim 402193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 403193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 404193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 405193267Sjkim 406193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 407193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 408193267Sjkimutilities from the original acpica git source tree structure. 409193267Sjkim 410193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 411193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 412193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 413193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 414193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 415193267Sjkimexecute fully on Cygwin. 416193267Sjkim 417193267Sjkim---------------------------------------- 418193267Sjkim20 March 2009. Summary of changes for version 20090320: 419193267Sjkim 420193267Sjkim1) ACPI CA Core Subsystem: 421193267Sjkim 422193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 423193267Sjkimunloads. Added a reader/writer locking mechanism to allow multiple concurrent 424193267Sjkimnamespace walks (readers), but block a dynamic table unload until it can gain 425193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 426193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 427193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 428193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 429193267Sjkim 430193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 431193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 432193267Sjkim 433193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 434193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 435193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 436193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 437193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 438193267Sjkimis used instead. This now matches the Windows behavior. 439193267Sjkim 440193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 441193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 442193267Sjkimcode. Adds a new file, hwvalid.c 443193267Sjkim 444193267SjkimFixed a possible extraneous warning message from the FADT support. The 445193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 446193267Sjkimdefinitions for a register. 447193267Sjkim 448193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 449193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 450193267Sjkimto validate the entire address range of an operation region, which could be 451193267Sjkimincorrect if the range included illegal ports, but fields within the 452193267Sjkimoperation region did not actually access those ports. Validation is now 453193267Sjkimperformed on a per-field basis instead of the entire region. 454193267Sjkim 455193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 456193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 457193267Sjkimmeans a read/modify/write when writing to the register. However, for status 458193267Sjkimregisters, writing a one means clear the event. Writing a zero means preserve 459193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 460193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 461193267Sjkim 462193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 463193267Sjkimper the ACPI specification, for the control registers, preserve 464193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 465193267Sjkim 466193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 467193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 468193267SjkimACPICA BZ 443. Lin Ming. 469193267Sjkim 470193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 471193267Sjkimwants to reply true to this request. The Windows strings are the only paths 472193267Sjkimthrough the AML that are tested and known to work properly. 473193267Sjkim 474193267Sjkim Previous Release: 475193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 476193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 477193267Sjkim Current Release: 478193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 479193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 480193267Sjkim 481193267Sjkim2) iASL Compiler/Disassembler and Tools: 482193267Sjkim 483193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 484193267Sjkimaetables.c 485193267Sjkim 486193267Sjkim---------------------------------------- 487193267Sjkim20 February 2009. Summary of changes for version 20090220: 488193267Sjkim 489193267Sjkim1) ACPI CA Core Subsystem: 490193267Sjkim 491193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 492193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 493193267Sjkimnot required when reading the single-bit registers. The 494193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 495193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 496193267Sjkim 497193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 498193267SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if 499193267Sjkimthe register has an address of zero. Previously, these cases simply returned 500193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 501193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 502193267Sjkim 503193267SjkimRenamed the external ACPI bit register access functions. Renamed 504193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 505193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 506193267SjkimAlso, restructured the code for these functions by simplifying the code path 507193267Sjkimand condensing duplicate code to reduce code size. 508193267Sjkim 509193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 510193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 511193267Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ 512193267Sjkim746. 513193267Sjkim 514193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 515193267SjkimThis function writes both of the PM1 control registers (A/B). These registers 516193267Sjkimare different than the PM1 A/B status and enable registers in that different 517193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 518193267Sjkimcan be different, as per the values returned from the _Sx predefined methods. 519193267Sjkim 520193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 521193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 522193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 523193267Sjkimregister. ACPICA BZ 751. 524193267Sjkim 525193267SjkimSplit out the PM1 Status registers from the FADT. Added new globals for these 526193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 527193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 528193267Sjkimclearer and less prone to error. 529193267Sjkim 530193267SjkimFixed the warning message for when the platform contains too many ACPI tables 531193267Sjkimfor the default size of the global root table data structure. The calculation 532193267Sjkimfor the truncation value was incorrect. 533193267Sjkim 534193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 535193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 536193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 537193267Sjkim 538193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 539193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 540193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 541193267Sjkim 542193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 543193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 544193267Sjkimincluded for 32-bit hosts. 545193267Sjkim 546193267SjkimDebug output: print the input and result for invocations of the _OSI reserved 547193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 548193267Sjkimverbosity of this debug level. Len Brown. 549193267Sjkim 550193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 551193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 552193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 553193267Sjkimmuch larger code and data size. 554193267Sjkim 555193267Sjkim Previous Release: 556193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 557193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 558193267Sjkim Current Release: 559193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 560193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 561193267Sjkim 562193267Sjkim2) iASL Compiler/Disassembler and Tools: 563193267Sjkim 564193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 565193267Sjkimvarious legal performance profiles. 566193267Sjkim 567193267Sjkim---------------------------------------- 568193267Sjkim23 January 2009. Summary of changes for version 20090123: 569193267Sjkim 570193267Sjkim1) ACPI CA Core Subsystem: 571193267Sjkim 572193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 573193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 574193267Sjkimthe tools/utilities. 575193267Sjkim 576193267SjkimImplemented a change to allow the host to override any ACPI table, including 577193267Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by the 578193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 579193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 580193267Sjkima table is dynamically loaded via the AML Load operator. 581193267Sjkim 582193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 583193267Sjkim 584193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 585193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 586193267Sjkimwith the actual namespace entry which is itself padded with underscores. 587193267Sjkim 588193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 589193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 590193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 591193267Sjkimmuch larger code and data size. 592193267Sjkim 593193267Sjkim Previous Release: 594193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 595193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 596193267Sjkim Current Release: 597193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 598193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 599193267Sjkim 600193267Sjkim2) iASL Compiler/Disassembler and Tools: 601193267Sjkim 602193267SjkimFix build error under Bison-2.4. 603193267Sjkim 604193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 605193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 606193267Sjkimincludes the FADT version which first defined each flag. 607193267Sjkim 608193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 609193267SjkimDSDT). Windows only. 610193267Sjkim 611193267Sjkim---------------------------------------- 612193267Sjkim04 December 2008. Summary of changes for version 20081204: 613193267Sjkim 614193267Sjkim1) ACPI CA Core Subsystem: 615193267Sjkim 616193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 617193267Sjkimthis release. This includes updates to the external interfaces, OSL 618193267Sjkiminterfaces, the overview sections, and the debugger reference. 619193267Sjkim 620193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 621193267Sjkimprogrammer reference: 622193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 623193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 624193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 625193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 626193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 627193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 628193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 629193267Sjkim 630193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 631193267Sjkimfile, components/hardware/hwxface.c 632193267Sjkim 633193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 634193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 635193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 636193267Sjkimthere may be some risk in actually trusting the FADT register lengths, a run- 637193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 638193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 639193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 640193267Sjkimregister length is overridden with the default value. 641193267Sjkim 642193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 643193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 644193267SjkimPackages. Lin Ming. 645193267Sjkim 646193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 647193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 648193267Sjkim 649193267SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes will 650193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 651193267Sjkim 652193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 653193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 654193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 655193267Sjkimmuch larger code and data size. 656193267Sjkim 657193267Sjkim Previous Release: 658193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 659193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 660193267Sjkim Current Release: 661193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 662193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 663193267Sjkim 664193267Sjkim2) iASL Compiler/Disassembler and Tools: 665193267Sjkim 666193267SjkimiASL: Completed the '-e' option to include additional ACPI tables in order to 667193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 668193267SjkimMing. 669193267Sjkim 670193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 671193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 672193267Sjkim 673193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 674193267SjkimBZ 743. 675193267Sjkim 676193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 677193267Sjkim 678193267Sjkim---------------------------------------- 679193267Sjkim31 October 2008. Summary of changes for version 20081031: 680193267Sjkim 681193267Sjkim1) ACPI CA Core Subsystem: 682193267Sjkim 683193267SjkimRestructured the ACPICA header files into public/private. acpi.h now includes 684193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 685193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 686193267Sjkiminclude the commonly used private headers for acpica code generation. Future 687193267Sjkimplans include moving all private headers to a new subdirectory. 688193267Sjkim 689193267SjkimImplemented an automatic Buffer->String return value conversion for 690193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 691193267Sjkimconversion for return objects that are required to be a String, but a Buffer 692193267Sjkimwas found instead. This can happen when reading string battery data from an 693193267Sjkimoperation region, because it used to be difficult to convert the data from 694193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 695193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 696193267Sjkim 697193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 698193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 699193267Sjkimrequired because the host OS must setup the wake much differently for each 700193267Sjkimvector (real vs. protected mode, etc.) and the interface itself should not be 701193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 702193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 703193267Sjkimonly writes the vector.) ACPICA BZ 731. 704193267Sjkim 705193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 706193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 707193267SjkimThis can occur in poorly written AML when the hardware does not respond 708193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 709193267Sjkimloop count is configurable. A new exception code is returned when a loop is 710193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 711193267Sjkim 712193267SjkimOptimized the execution of AML While loops. Previously, a control state 713193267Sjkimobject was allocated and freed for each execution of the loop. The 714193267Sjkimoptimization is to simply reuse the control state for each iteration. This 715193267Sjkimspeeds up the raw loop execution time by about 5%. 716193267Sjkim 717193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 718193267Sjkimimplicit integer of value zero for methods that contain no executable code. 719193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 720193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 721193267Sjkim 722193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 723193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 724193267Sjkimis seen in the field) because of the use of a double-backslash in strings 725193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 726193267SjkimLin Ming. 727193267Sjkim 728193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 729193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 730193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 731193267Sjkim 732193267SjkimConsolidated the method argument count validation code. Merged the code that 733193267Sjkimvalidates control method argument counts into the predefined validation 734193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 735193267Sjkim 736193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 737193267Sjkimhandler installation, and calling a control method. Available at 738193267Sjkimsource/tools/examples. 739193267Sjkim 740193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 741193267Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS access. 742193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 743193267SjkimVector(s). 744193267Sjkim 745193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 746193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 747193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 748193267Sjkimmuch larger code and data size. 749193267Sjkim 750193267Sjkim Previous Release: 751193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 752193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 753193267Sjkim Current Release: 754193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 755193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 756193267Sjkim 757193267Sjkim2) iASL Compiler/Disassembler and Tools: 758193267Sjkim 759193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 760193267Sjkimallow the inclusion of additional ACPI tables to help with the disassembly of 761193267Sjkimmethod invocations and the generation of external declarations during the 762193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 763193267Sjkimproperly without the actual declaration of the method. Use the -e option to 764193267Sjkiminclude the table where the external method(s) are actually declared. Most 765193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 766193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 767193267Sjkim-e dsdt.aml ssdt1.aml 768193267Sjkim 769193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 770193267Sjkimproblem where the use of an alias within a namepath would result in a not 771193267Sjkimfound error or cause the compiler to fault. Also now allows forward 772193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 773193267Sjkim 774193267Sjkim---------------------------------------- 775193267Sjkim26 September 2008. Summary of changes for version 20080926: 776193267Sjkim 777193267Sjkim1) ACPI CA Core Subsystem: 778193267Sjkim 779193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 780193267Sjkimobjects. This code validates the predefined ACPI objects (objects whose names 781193267Sjkimstart with underscore) that appear in the namespace, at the time they are 782193267Sjkimevaluated. The argument count and the type of the returned object are 783193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 784193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 785193267Sjkimthe results are returned to the ACPI-related drivers. Future enhancements may 786193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 787193267Sjkimfiles are nspredef.c and acpredef.h. 788193267Sjkim 789193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 790193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 791193267Sjkim 792193267SjkimFixed an issue with implicit return compatibility. This change improves the 793193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 794193267SjkimMing, ACPICA BZ 349. 795193267Sjkim 796193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 797193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 798193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 799193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 800193267Sjkim 801193267SjkimFixed two possible memory leaks in the error exit paths of 802193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 803193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 804193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 805193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 806193267Sjkim 807193267SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global 808193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 809193267SjkimMoore ACPICA BZ 442. 810193267Sjkim 811193267SjkimRemoved the obsolete version number in module headers. Removed the 812193267Sjkim"$Revision" number that appeared in each module header. This version number 813193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 814193267Sjkimonly incorrect, it could also be misleading. 815193267Sjkim 816193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 817193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 818193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 819193267Sjkimmuch larger code and data size. 820193267Sjkim 821193267Sjkim Previous Release: 822193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 823193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 824193267Sjkim Current Release: 825193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 826193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 827193267Sjkim 828193267Sjkim---------------------------------------- 829193267Sjkim29 August 2008. Summary of changes for version 20080829: 830193267Sjkim 831193267Sjkim1) ACPI CA Core Subsystem: 832193267Sjkim 833193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 834193267SjkimReference. Changes include the elimination of cheating on the Object field 835193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 836193267Sjkimdifferentiate the various reference types (instead of an AML opcode), and the 837193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 838193267Sjkim 839193267SjkimReduce an error to a warning for an incorrect method argument count. 840193267SjkimPreviously aborted with an error if too few arguments were passed to a 841193267Sjkimcontrol method via the external ACPICA interface. Now issue a warning instead 842193267Sjkimand continue. Handles the case where the method inadvertently declares too 843193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 844193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 845193267Sjkim 846193267SjkimDisallow the evaluation of named object types with no intrinsic value. Return 847193267SjkimAE_TYPE for objects that have no value and therefore evaluation is undefined: 848193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 849193267Sjkimthese types were allowed, but an exception would be generated at some point 850193267Sjkimduring the evaluation. Now, the error is generated up front. 851193267Sjkim 852193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 853193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 854193267Sjkim 855193267SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug 856193267Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION 857193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 858193267SjkimACPI_LV_EVENTS. 859193267Sjkim 860193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 861193267SjkimThere is the possibility that certain device drivers may be affected if they 862193267Sjkimuse any of these exceptions. 863193267Sjkim 864193267SjkimThe ACPICA documentation has been added to the public git source tree, under 865193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 866193267Sjkimcompiler reference, and the changes.txt release logfile. 867193267Sjkim 868193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 869193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 870193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 871193267Sjkimmuch larger code and data size. 872193267Sjkim 873193267Sjkim Previous Release: 874193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 875193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 876193267Sjkim Current Release: 877193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 878193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 879193267Sjkim 880193267Sjkim2) iASL Compiler/Disassembler and Tools: 881193267Sjkim 882193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 883193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 884193267Sjkimargument. iASL now allows both definitions. 885193267Sjkim 886193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 887193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 888193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 889193267Sjkimproperly. 890193267Sjkim 891193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 892193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 893193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 894193267Sjkimheader. 895193267Sjkim 896193267Sjkim---------------------------------------- 897193267Sjkim 898193267Sjkim29 July 2008. Summary of changes for version 20080729: 899193267Sjkim 900193267SjkimThis release is available at http://acpica.org/downloads 901193267SjkimDirect git access via http://www.acpica.org/repos/acpica.git 902193267Sjkim 903193267Sjkim1) ACPI CA Core Subsystem: 904193267Sjkim 905193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 906193267SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt 907193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 908193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 909193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 910193267Sjkim 911193267SjkimAdd a function to dereference returned reference objects. Examines the return 912193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 913193267Sjkimautomatically dereferenced in an attempt to return something useful (these 914193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 915193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 916193267Sjkim 917193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 918193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 919193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 920193267SjkimSpecification, June 2008. 921193267Sjkim 922193267SjkimAdditional error checking for pathname utilities. Add error check after all 923193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 924193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 925193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 926193267Sjkim 927193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 928193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 929193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 930193267Sjkim 931193267SjkimAdd a function to decode reference object types to strings. Created for 932193267Sjkimimproved error messages. 933193267Sjkim 934193267SjkimImprove object conversion error messages. Better error messages during object 935193267Sjkimconversion from internal to the external ACPI_OBJECT. Used for external calls 936193267Sjkimto AcpiEvaluateObject. 937193267Sjkim 938193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 939193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 940193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 941193267Sjkimmuch larger code and data size. 942193267Sjkim 943193267Sjkim Previous Release: 944193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 945193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 946193267Sjkim Current Release: 947193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 948193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 949193267Sjkim 950193267Sjkim2) iASL Compiler/Disassembler and Tools: 951193267Sjkim 952193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 953193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 954193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 955193267Sjkimexistent parameters. 956193267Sjkim 957193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 958193267Sjkimappear in a disassembled ASL file if they were emitted by the original 959193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 960193267Sjkimmanually change these names, issue a remark instead. 961193267Sjkim 962193267SjkimiASL: error if named object created in while loop. Emit an error if any named 963193267Sjkimobject is created within a While loop. If allowed, this code will generate a 964193267Sjkimrun-time error on the second iteration of the loop when an attempt is made to 965193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 966193267Sjkim 967193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 968193267Sjkimpathnames within the Include operator. previously, only relative pathnames 969193267Sjkimwere supported. 970193267Sjkim 971193267SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor. 972193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 973193267Sjkim 974193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 975193267SjkimHandles the case for the Interrupt Resource Descriptor where 976193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 977193267Sjkimis present. Now leave room for the Index. BZ 426 978193267Sjkim 979193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 980193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 981193267Sjkim 982193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 983193267Sjkim(get ACPI tables on Windows). This was apparently broken in version 20070919. 984193267Sjkim 985193267SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case where 986193267Sjkimthe EOF happens immediately after the last table in the input file. Print 987193267Sjkimcompletion message. Previously, no message was displayed in this case. 988193267Sjkim 989193267Sjkim---------------------------------------- 990193267Sjkim01 July 2008. Summary of changes for version 20080701: 991193267Sjkim 992193267SjkimThis release is available at http://acpica.org/downloads 993193267SjkimDirect git access via http://www.acpica.org/repos/acpica.git 994193267Sjkim 995193267Sjkim0) Git source tree / acpica.org 996193267Sjkim 997193267SjkimFixed a problem where a git-clone from http would not transfer the entire 998193267Sjkimsource tree. 999193267Sjkim 1000193267Sjkim1) ACPI CA Core Subsystem: 1001193267Sjkim 1002193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 1003193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 1004193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 1005193267Sjkimenabling of GPEs if a rogue GPE is received during initialization (before GPE 1006193267Sjkimhandlers are installed.) 1007193267Sjkim 1008193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 1009193267Sjkimloaded tables were simply mapped - but on some machines this memory is 1010193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 1011193267SjkimOpRegion case, added checksum verify. Use the table length from the table 1012193267Sjkimheader, not the region length. For the Buffer case, use the table length 1013193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 1014193267Sjkim 1015193267SjkimFixed a problem where the same ACPI table could not be dynamically loaded and 1016193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 1017193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 1018193267Sjkimunregister a table upon an unload. During a load, if the same table is found, 1019193267Sjkimthis no longer returns an exception. BZ 722 1020193267Sjkim 1021193267SjkimFixed a problem where the wrong descriptor length was calculated for the 1022193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 1023193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 1024193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 1025193267Sjkimby Linn Crosetto. BZ 728 1026193267Sjkim 1027193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 1028193267Sjkimby Load() did not have its reference count decremented during unload, leading 1029193267Sjkimto a memory leak. Lin Ming. BZ 727 1030193267Sjkim 1031193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 1032193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 1033193267SjkimSuietov. BZ 506 1034193267Sjkim 1035193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 1036193267Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only. 1037193267SjkimVegard Nossum. BZ 726 1038193267Sjkim 1039193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 1040193267Sjkimarguments if the object is a control method. Added this call to the debugger 1041193267Sjkimso the proper number of default arguments are passed to a method. This 1042193267Sjkimprevents a warning when executing methods from AcpiExec. 1043193267Sjkim 1044193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 1045193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 1046193267Sjkim 1047193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 1048193267Sjkim 1049193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1050193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1051193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1052193267Sjkimmuch larger code and data size. 1053193267Sjkim 1054193267Sjkim Previous Release: 1055193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1056193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1057193267Sjkim Current Release: 1058193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1059193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1060193267Sjkim 1061193267Sjkim2) iASL Compiler/Disassembler and Tools: 1062193267Sjkim 1063193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 1064193267Sjkimresource descriptor names. 1065193267Sjkim 1066193267SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed the 1067193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 1068193267Sjkimcharacters in the input. BZ 441 1069193267Sjkim 1070193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 1071193267Sjkim"result of operation not used" warning when the DDB handle returned from 1072193267SjkimLoadTable is not used. The warning is not needed. BZ 590 1073193267Sjkim 1074193267SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to 1075193267Sjkimpass address of table to the AML. Added option to disable OpRegion simulation 1076193267Sjkimto allow creation of an OpRegion with a real address that was passed to _CFG. 1077193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 1078193267Sjkim 1079193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 1080193267Sjkimand use the standard table header output routine. 1081193267Sjkim 1082193267Sjkim---------------------------------------- 1083193267Sjkim09 June 2008. Summary of changes for version 20080609: 1084193267Sjkim 1085193267Sjkim1) ACPI CA Core Subsystem: 1086193267Sjkim 1087193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 1088193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 1089193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 1090193267Sjkimwith MS ACPI. BZ 6859 1091193267Sjkim 1092193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 1093193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 1094193267SjkimAcpiGetRegisterUnlocked. 1095193267Sjkim 1096193267SjkimFixed a problem where the invocation of a GPE control method could hang. This 1097193267Sjkimwas a regression introduced in 20080514. The new method argument count 1098193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 1099193267Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE block 1100193267Sjkiminformation to the notify handler via the control method parameter pointer. 1101193267Sjkim 1102193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 1103193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 1104193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 1105193267Sjkimreturned. BZ 716 1106193267Sjkim 1107193267SjkimFixed a problem where a deleted object could be accessed from within the AML 1108193267Sjkimparser. This was a regression introduced in version 20080123 as a fix for the 1109193267SjkimUnload operator. Lin Ming. BZ 10669 1110193267Sjkim 1111193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 1112193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 1113193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 1114193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 1115193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 1116193267Sjkim 1117193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 1118193267Sjkimpath did not delete a locally allocated structure. 1119193267Sjkim 1120193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 1121193267Sjkimcurrent specifications. Includes disassembler support. 1122193267Sjkim 1123193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 1124193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 1125193267Sjkimone mutex. Linn Crosetto 1126193267Sjkim 1127193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1128193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1129193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1130193267Sjkimmuch larger code and data size. 1131193267Sjkim 1132193267Sjkim Previous Release: 1133193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1134193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1135193267Sjkim Current Release: 1136193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1137193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1138193267Sjkim 1139193267Sjkim2) iASL Compiler/Disassembler and Tools: 1140193267Sjkim 1141193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 1142193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 1143193267Sjkimmultiple integers within _CID packages. Includes single-step support for 1144193267Sjkimdebugger also. 1145193267Sjkim 1146193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 1147193267Sjkim 1148193267Sjkim---------------------------------------- 1149193267Sjkim14 May 2008. Summary of changes for version 20080514: 1150193267Sjkim 1151193267Sjkim1) ACPI CA Core Subsystem: 1152193267Sjkim 1153193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 1154193267Sjkiminitialization. This could lead to "handler not installed" errors on some 1155193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 1156193267Sjkimensures that all operation regions and devices throughout the namespace have 1157193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 1158193267Sjkim 1159193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 1160193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 1161193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 1162193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 1163193267SjkimLuming Yu, BZ 1653. 1164193267Sjkim 1165193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 1166193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 1167193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 1168193267Sjkimthe ACPICA code. 1169193267Sjkim 1170193267SjkimFixed a problem with the Field operator where zero-length fields would return 1171193267Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL 1172193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 1173193267Sjkim 1174193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 1175193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 1176193267Sjkimloaded at the namespace root even though this goes against the ACPI 1177193267Sjkimspecification. This provides compatibility with other ACPI implementations. 1178193267SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming. 1179193267Sjkim 1180193267SjkimFixed a problem where ACPICA would not Load() tables with unusual signatures. 1181193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 1182193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 1183193267SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts such 1184193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 1185193267Sjkim 1186193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 1187193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 1188193267SjkimSubStatus field. 1189193267Sjkim 1190193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 1191193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 1192193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 1193193267Sjkim 1194193267SjkimImplemented argument count checking in control method invocation via 1195193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 1196193267Sjkimmany. This applies only to extern programmatic control method execution, not 1197193267Sjkimmethod-to-method calls within the AML. Lin Ming. 1198193267Sjkim 1199193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 1200193267Sjkimlonger needed, especially with the removal of 16-bit support. It was replaced 1201193267Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on 1202193267Sjkim32/64-bit platforms is required. 1203193267Sjkim 1204193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 1205193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 1206193267Sjkim 1207193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1208193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1209193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1210193267Sjkimmuch larger code and data size. 1211193267Sjkim 1212193267Sjkim Previous Release: 1213193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1214193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1215193267Sjkim Current Release: 1216193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1217193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1218193267Sjkim 1219193267Sjkim2) iASL Compiler/Disassembler and Tools: 1220193267Sjkim 1221193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 1222193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 1223193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 1224193267Sjkim 1225193267Sjkim---------------------------------------- 1226193267Sjkim21 March 2008. Summary of changes for version 20080321: 1227193267Sjkim 1228193267Sjkim1) ACPI CA Core Subsystem: 1229193267Sjkim 1230193267SjkimImplemented an additional change to the GPE support in order to suppress 1231193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 1232193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 1233193267Sjkimthe GPE is unknown to the system. This should prevent future interrupt floods 1234193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 1235193267Sjkim 1236193267SjkimFixed a problem where NULL package elements were not returned to the 1237193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 1238193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 1239193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 1240193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 1241193267Sjkim 1242193267SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword, 1243193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 1244193267Sjkiman executing control method. In this case, these operators created namespace 1245193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 1246193267Sjkimtemporary nodes. This could cause a problem if there is race condition 1247193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 1248193267SjkimLinn Crosetto) 1249193267Sjkim 1250193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 1251193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 1252193267Sjkimgenerated. 1253193267Sjkim 1254193267SjkimImplemented several changes for Notify handling. Added support for new Notify 1255193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 1256193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 1257193267Sjkim(Bob Moore, Zhang Rui) 1258193267Sjkim 1259193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 1260193267Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for 1261193267SjkimNULL objects - either NULL package elements or unresolved named references. 1262193267Sjkim 1263193267SjkimFixed a problem where an extraneous debug message was produced for package 1264193267Sjkimobjects (when debugging enabled). The message "Package List length larger 1265193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 1266193267Sjkimerror message rather than a debug message. Added a debug message for the 1267193267Sjkimopposite case, where NumElements is larger than the Package List (the package 1268193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 1269193267Sjkim 1270193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 1271193267Sjkimclarify and keep all data for a given object on one output line. 1272193267Sjkim 1273193267SjkimFixed two size calculation issues with the variable-length Start Dependent 1274193267Sjkimresource descriptor. 1275193267Sjkim 1276193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1277193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1278193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1279193267Sjkima much larger code and data size. 1280193267Sjkim 1281193267Sjkim Previous Release: 1282193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1283193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1284193267Sjkim Current Release: 1285193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1286193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1287193267Sjkim 1288193267Sjkim2) iASL Compiler/Disassembler and Tools: 1289193267Sjkim 1290193267SjkimFixed a problem with the use of the Switch operator where execution of the 1291193267Sjkimcontaining method by multiple concurrent threads could cause an 1292193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 1293193267Sjkimactual Switch opcode, it must be simulated with local named temporary 1294193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 1295193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 1296193267Sjkim 1297193267Sjkim---------------------------------------- 1298193267Sjkim13 February 2008. Summary of changes for version 20080213: 1299193267Sjkim 1300193267Sjkim1) ACPI CA Core Subsystem: 1301193267Sjkim 1302193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 1303193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 1304193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 1305193267Sjkimbehind all pending notify requests (may require changes to the local host OSL 1306193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 1307193267Sjkim 1308193267SjkimFixed a problem where buffer and package objects passed as arguments to a 1309193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 1310193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 1311193267Sjkimexecuted by the target control method. 1312193267Sjkim 1313193267SjkimFixed a problem where resource descriptor size optimization could cause a 1314193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 1315193267Sjkimresource template must use the same descriptors (with the same size) as 1316193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 1317193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 1318193267Sjkim 1319193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 1320193267Sjkimobjects did not perform an implicit conversion as it should. These types must 1321193267Sjkimretain their initial type permanently as per the ACPI specification. However, 1322193267Sjkima CopyObject to all other object types should not perform an implicit 1323193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 1324193267Sjkim 1325193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 1326193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 1327193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 1328193267Sjkim 1329193267SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was 1330193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 1331193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 1332193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 1333193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 1334193267Sjkiminefficient compilers. 1335193267Sjkim 1336193267SjkimAdded missing va_end statements that should correspond with each va_start 1337193267Sjkimstatement. 1338193267Sjkim 1339193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1340193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1341193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1342193267Sjkima much larger code and data size. 1343193267Sjkim 1344193267Sjkim Previous Release: 1345193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 1346193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 1347193267Sjkim Current Release: 1348193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1349193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1350193267Sjkim 1351193267Sjkim2) iASL Compiler/Disassembler and Tools: 1352193267Sjkim 1353193267SjkimImplemented full disassembler support for the following new ACPI tables: 1354193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 1355193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 1356193267SjkimArchitecture (WHEA). 1357193267Sjkim 1358193267Sjkim---------------------------------------- 1359193267Sjkim23 January 2008. Summary of changes for version 20080123: 1360193267Sjkim 1361193267Sjkim1) ACPI CA Core Subsystem: 1362193267Sjkim 1363193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 1364193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1365193267Sjkimthe tools/utilities. 1366193267Sjkim 1367193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 1368193267Sjkimobjects. These objects have deferred execution for some arguments, and the 1369193267Sjkimexecution is now completed before the SizeOf is executed. This problem caused 1370193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 1371193267Sjkim9558 1372193267Sjkim 1373193267SjkimImplemented an enhancement to the interpreter "slack mode". In the absence of 1374193267Sjkiman explicit return or an implicitly returned object from the last executed 1375193267Sjkimopcode, a control method will now implicitly return an integer of value 0 for 1376193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 1377193267Sjkim 1378193267SjkimFixed a problem with the Load operator where an exception was not returned in 1379193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 1380193267Sjkim 1381193267SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as per 1382193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 1383193267Sjkim 1384193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 1385193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 1386193267Sjkim 1387193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 1388193267Sjkiminput strings could cause unexpected failures if they were shorter than the 1389193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 1390193267Sjkim 1391193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 1392193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 1393193267Sjkim 1394193267SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST, 1395193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 1396193267Sjkim 1397193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1398193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1399193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1400193267Sjkima much larger code and data size. 1401193267Sjkim 1402193267Sjkim Previous Release: 1403193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 1404193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 1405193267Sjkim Current Release: 1406193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 1407193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 1408193267Sjkim 1409193267Sjkim2) iASL Compiler/Disassembler and Tools: 1410193267Sjkim 1411193267SjkimImplemented support in the disassembler for checksum validation on incoming 1412193267Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the table 1413193267Sjkimheader dump at the start of the disassembly. 1414193267Sjkim 1415193267SjkimImplemented additional debugging information in the namespace listing file 1416193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 1417193267Sjkimpathname to each namespace object is displayed. 1418193267Sjkim 1419193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 1420193267Sjkimfaults or infinite loops. 1421193267Sjkim 1422193267SjkimFixed an unexpected parse error when using the optional "parameter types" 1423193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 1424193267Sjkim 1425193267SjkimFixed a problem where two External declarations with the same name did not 1426193267Sjkimcause an error (Lin Ming) BZ 509 1427193267Sjkim 1428193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 1429193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 1430193267SjkimMing) BZ 583,587 1431193267Sjkim 1432193267Sjkim---------------------------------------- 1433193267Sjkim19 December 2007. Summary of changes for version 20071219: 1434193267Sjkim 1435193267Sjkim1) ACPI CA Core Subsystem: 1436193267Sjkim 1437193267SjkimImplemented full support for deferred execution for the TermArg string 1438193267Sjkimarguments for DataTableRegion. This enables forward references and full 1439193267Sjkimoperand resolution for the three string arguments. Similar to OperationRegion 1440193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 1441193267Sjkim 1442193267SjkimImplemented full argument resolution support for the BankValue argument to 1443193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 1444193267Sjkimused. Lin Ming BZ 387, 393 1445193267Sjkim 1446193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 1447193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 1448193267Sjkimspecification, the search down the current branch is terminated if a device 1449193267Sjkimis both not present and not functional (instead of just not present.) Yakui 1450193267SjkimZhao. 1451193267Sjkim 1452193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 1453193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 1454193267Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled 1455193267Sjkiminstead of simply ignored. Rui Zhang. 1456193267Sjkim 1457193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 1458193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 1459193267Sjkim 1460193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 1461193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 1462193267Sjkim 1463193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1464193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1465193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1466193267Sjkima much larger code and data size. 1467193267Sjkim 1468193267Sjkim Previous Release: 1469193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 1470193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 1471193267Sjkim Current Release: 1472193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 1473193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 1474193267Sjkim 1475193267Sjkim---------------------------------------- 1476193267Sjkim14 November 2007. Summary of changes for version 20071114: 1477193267Sjkim 1478193267Sjkim1) ACPI CA Core Subsystem: 1479193267Sjkim 1480193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 1481193267Sjkim(interrupt) itself, and control methods executed. Named 1482193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 1483193267Sjkimshould be useful for debugging and statistics. 1484193267Sjkim 1485193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 1486193267Sjkimcontents of the various event counters. Returns the current values for 1487193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 1488193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 1489193267Sjkimare added. Device drivers should use this interface rather than access the 1490193267Sjkimcounters directly. 1491193267Sjkim 1492193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 1493193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 1494193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 1495193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 1496193267Sjkim 1497193267SjkimFixed a problem with Index references passed as method arguments. References 1498193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 1499193267Sjkimcontrol was passed to the called method). The references are now correctly 1500193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 1501193267Sjkim 1502193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 1503193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 1504193267Sjkimnow correctly copied. BZ 5391. Lin Ming 1505193267Sjkim 1506193267SjkimFixed a problem with Control Method references within Package objects. These 1507193267Sjkimreferences are now correctly generated. This completes the package 1508193267Sjkimconstruction overhaul that began in version 20071019. 1509193267Sjkim 1510193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1511193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1512193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1513193267Sjkima much larger code and data size. 1514193267Sjkim 1515193267Sjkim Previous Release: 1516193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 1517193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 1518193267Sjkim Current Release: 1519193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 1520193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 1521193267Sjkim 1522193267Sjkim 1523193267Sjkim2) iASL Compiler/Disassembler and Tools: 1524193267Sjkim 1525193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 1526193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 1527193267SjkimPCIBARTarget. 1528193267Sjkim 1529193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 1530193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 1531193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 1532193267Sjkimand Bob Moore 1533193267Sjkim 1534193267Sjkim---------------------------------------- 1535193267Sjkim19 October 2007. Summary of changes for version 20071019: 1536193267Sjkim 1537193267Sjkim1) ACPI CA Core Subsystem: 1538193267Sjkim 1539193267SjkimFixed a problem with the Alias operator when the target of the alias is a 1540193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 1541193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 1542193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 1543193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 1544193267Sjkim 1545193267SjkimFixed a problem with the Package operator where all named references were 1546193267Sjkimcreated as object references and left otherwise unresolved. According to the 1547193267SjkimACPI specification, a Package can only contain Data Objects or references to 1548193267Sjkimcontrol methods. The implication is that named references to Data Objects 1549193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 1550193267Sjkimimmediately upon package creation. This is the approach taken with this 1551193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 1552193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 1553193267Sjkim 1554193267SjkimReverted a change to Notify handling that was introduced in version 1555193267Sjkim20070508. This version changed the Notify handling from asynchronous to 1556193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 1557193267SjkimASL operator). It was found that this change caused more problems than it 1558193267Sjkimsolved and was removed by most users. 1559193267Sjkim 1560193267SjkimFixed a problem with the Increment and Decrement operators where the type of 1561193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 1562193267SjkimLin Ming. 1563193267Sjkim 1564193267SjkimFixed a problem with the Load and LoadTable operators where the table 1565193267Sjkimlocation within the namespace was ignored. Instead, the table was always 1566193267Sjkimloaded into the root or current scope. Lin Ming. 1567193267Sjkim 1568193267SjkimFixed a problem with the Load operator when loading a table from a buffer 1569193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 1570193267Sjkim 1571193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 1572193267Sjkimobject to the Debug object could cause a fault. 1573193267Sjkim 1574193267SjkimAdded a table checksum verification for the Load operator, in the case where 1575193267Sjkimthe load is from a buffer. (BZ 578). 1576193267Sjkim 1577193267SjkimImplemented additional parameter validation for the LoadTable operator. The 1578193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 1579193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 1580193267Sjkim 1581193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1582193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1583193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1584193267Sjkima much larger code and data size. 1585193267Sjkim 1586193267Sjkim Previous Release: 1587193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 1588193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 1589193267Sjkim Current Release: 1590193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 1591193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 1592193267Sjkim 1593193267Sjkim 1594193267Sjkim2) iASL Compiler/Disassembler: 1595193267Sjkim 1596193267SjkimFixed a problem where if a single file was specified and the file did not 1597193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 1598193267Sjkimversion 20070917.) 1599193267Sjkim 1600193267Sjkim---------------------------------------- 1601193267Sjkim19 September 2007. Summary of changes for version 20070919: 1602193267Sjkim 1603193267Sjkim1) ACPI CA Core Subsystem: 1604193267Sjkim 1605193267SjkimDesigned and implemented new external interfaces to install and remove 1606193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 1607193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 1608193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 1609193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 1610193267Sjkim 1611193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 1612193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 1613193267Sjkiminitialization. (Bob Moore) BZ 8171 1614193267Sjkim 1615193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 1616193267SjkimProcessor, PowerResource) can be not found if they are declared and 1617193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 1618193267Sjkim 1619193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1620193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1621193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1622193267Sjkima much larger code and data size. 1623193267Sjkim 1624193267Sjkim Previous Release: 1625193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 1626193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 1627193267Sjkim Current Release: 1628193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 1629193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 1630193267Sjkim 1631193267Sjkim 1632193267Sjkim2) iASL Compiler/Disassembler: 1633193267Sjkim 1634193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 1635193267Sjkimsingle invocation. This includes command line wildcard support for both the 1636193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 1637193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 1638193267Sjkim 1639193267Sjkim---------------------------------------- 1640193267Sjkim08 May 2007. Summary of changes for version 20070508: 1641193267Sjkim 1642193267Sjkim1) ACPI CA Core Subsystem: 1643193267Sjkim 1644193267SjkimImplemented a Microsoft compatibility design change for the handling of the 1645193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 1646193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 1647193267Sjkimstill executes the notify handlers in a different thread, but the original 1648193267Sjkimthread that executed the Notify() now waits at a synchronization point for 1649193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 1650193267Sjkimoperator in order to operate correctly. 1651193267Sjkim 1652193267SjkimImplemented support to allow Package objects to be passed as method 1653193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 1654193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 1655193267Sjkimimplemented since there were no reserved control methods that required it 1656193267Sjkimuntil recently. 1657193267Sjkim 1658193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 1659193267Sjkimcontained invalid non-zero values in reserved fields could cause later 1660193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 1661193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 1662193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 1663193267Sjkim 1664193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 1665193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 1666193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 1667193267SjkimLiu. 1668193267Sjkim 1669193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 1670193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 1671193267Sjkimlist. Reported by Linn Crosetto. 1672193267Sjkim 1673193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1674193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1675193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1676193267Sjkima much larger code and data size. 1677193267Sjkim 1678193267Sjkim Previous Release: 1679193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1680193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 1681193267Sjkim Current Release: 1682193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 1683193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 1684193267Sjkim 1685193267Sjkim---------------------------------------- 1686167802Sjkim20 March 2007. Summary of changes for version 20070320: 1687167802Sjkim 1688167802Sjkim1) ACPI CA Core Subsystem: 1689167802Sjkim 1690193267SjkimImplemented a change to the order of interpretation and evaluation of AML 1691193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 1692193267Sjkimoperands in the order that they appear in the AML stream (and the 1693193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 1694193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 1695193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 1696193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 1697167802Sjkim 1698193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 1699193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 1700193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 1701193267Sjkimas well as the internal use of the global lock to support AML fields -- a 1702193267Sjkimcontrol method that is holding the global lock can now simultaneously access 1703193267SjkimAML fields that require global lock protection. Previously, in both cases, 1704193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 1705193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 1706193267SjkimController. There is no change to the behavior of the AML Acquire operator, 1707193267Sjkimas this can already be used to acquire a mutex multiple times by the same 1708193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 1709167802Sjkim 1710193267SjkimFixed a problem where invalid objects could be referenced in the AML 1711193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 1712193267Sjkimthe internal "Return Object" field is cleared on error and only valid 1713193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 1714193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 1715167802Sjkim 1716193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 1717193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 1718193267SjkimPodrezov. 1719167802Sjkim 1720193267SjkimFixed an internal problem with the handling of result objects on the 1721193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 1722167802Sjkim 1723193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 1724193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 1725193267Sjkim7874. Valery Podrezov. 1726167802Sjkim 1727193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 1728193267Sjkimremnant from the previously discontinued 16-bit support. 1729167802Sjkim 1730193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1731193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1732193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1733193267Sjkima much larger code and data size. 1734167802Sjkim 1735167802Sjkim Previous Release: 1736167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1737167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1738167802Sjkim Current Release: 1739167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1740167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 1741167802Sjkim 1742167802Sjkim---------------------------------------- 1743167802Sjkim26 January 2007. Summary of changes for version 20070126: 1744167802Sjkim 1745167802Sjkim1) ACPI CA Core Subsystem: 1746167802Sjkim 1747193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 1748193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1749193267Sjkimthe utilities. 1750167802Sjkim 1751193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 1752193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 1753193267Sjkimoverridden, causing a fault in this case. 1754167802Sjkim 1755193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1756193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1757193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1758193267Sjkima much larger code and data size. 1759167802Sjkim 1760167802Sjkim Previous Release: 1761167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1762167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1763167802Sjkim Current Release: 1764167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1765167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1766167802Sjkim 1767167802Sjkim---------------------------------------- 1768167802Sjkim15 December 2006. Summary of changes for version 20061215: 1769167802Sjkim 1770167802Sjkim1) ACPI CA Core Subsystem: 1771167802Sjkim 1772193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 1773193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 1774193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 1775193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 1776193267Sjkimbootable Linux firmware kit is now available. 1777167802Sjkim 1778193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 1779193267Sjkimenable a clean subsystem restart, via the implementation of the 1780193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 1781193267SjkimHP) 1782167802Sjkim 1783193267SjkimImplemented enhancements to the multithreading support within the debugger 1784193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 1785167802Sjkim(Valery Podrezov) 1786167802Sjkim 1787193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 1788193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 1789193267Sjkimeach of the various object types. (Valery Podrezov) 1790167802Sjkim 1791193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1792193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1793193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1794193267Sjkima much larger code and data size. 1795193267Sjkim 1796167802Sjkim Previous Release: 1797167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 1798167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 1799167802Sjkim Current Release: 1800167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 1801167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 1802167802Sjkim 1803167802Sjkim 1804167802Sjkim2) iASL Compiler/Disassembler and Tools: 1805167802Sjkim 1806193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 1807193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 1808167802Sjkim 1809167802Sjkim---------------------------------------- 1810167802Sjkim09 November 2006. Summary of changes for version 20061109: 1811167802Sjkim 1812167802Sjkim1) ACPI CA Core Subsystem: 1813167802Sjkim 1814193267SjkimOptimized the Load ASL operator in the case where the source operand is an 1815193267Sjkimoperation region. Simply map the operation region memory, instead of 1816193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 1817193267Sjkimbelow.) 1818167802Sjkim 1819193267SjkimFixed the Load ASL operator for the case where the source operand is a 1820193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 1821167802Sjkim 1822193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 1823193267Sjkiman operation region of any type. It is now restricted to regions of type 1824193267SjkimSystemMemory, as per the ACPI specification. BZ 481 1825167802Sjkim 1826193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 1827167802Sjkim 1828193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 1829193267Sjkim(FADT, FACS, DSDT). BZ 477 1830167802Sjkim 1831193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 1832193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 1833193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 1834167802Sjkim 1835193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1836193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1837193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1838193267Sjkima much larger code and data size. 1839167802Sjkim 1840167802Sjkim Previous Release: 1841167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 1842167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 1843167802Sjkim Current Release: 1844167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 1845167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 1846167802Sjkim 1847167802Sjkim 1848167802Sjkim2) iASL Compiler/Disassembler and Tools: 1849167802Sjkim 1850193267SjkimFixed a problem where the presence of the _OSI predefined control method 1851193267Sjkimwithin complex expressions could cause an internal compiler error. 1852167802Sjkim 1853193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 1854193267SjkimSpaceId is now part of the REGION object. BZ 429 1855167802Sjkim 1856167802Sjkim---------------------------------------- 1857167802Sjkim11 October 2006. Summary of changes for version 20061011: 1858167802Sjkim 1859167802Sjkim1) ACPI CA Core Subsystem: 1860167802Sjkim 1861193267SjkimCompleted an AML interpreter performance enhancement for control method 1862193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 1863193267Sjkimcompletely parsed and executed in a single pass. This improves overall 1864193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 1865193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 1866193267Sjkimeliminated namespace loading during the pass one parse.) 1867167802Sjkim 1868193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 1869193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 1870193267Sjkimobtained and also checked for an ID match. 1871167802Sjkim 1872193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 1873193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 1874193267Sjkimoperation regions to be declared locally within control methods underneath 1875193267SjkimPCI device objects. 1876167802Sjkim 1877193267SjkimFixed a problem with a possible race condition between threads executing 1878193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 1879193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 1880193267Sjkimentries created during any concurrent control method execution. An 1881193267Sjkimadditional namespace race condition is known to exist between 1882193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 1883193267Sjkiminvestigation. 1884167802Sjkim 1885193267SjkimRestructured the AML ParseLoop function, breaking it into several 1886193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 1887193267Sjkim(Mikhail Kouzmich) 1888167802Sjkim 1889193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 1890193267Sjkimof prefix handle and pathname. BZ 478 1891167802Sjkim 1892193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1893193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1894193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1895193267Sjkima much larger code and data size. 1896167802Sjkim 1897167802Sjkim Previous Release: 1898167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 1899167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 1900167802Sjkim Current Release: 1901167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 1902167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 1903167802Sjkim 1904167802Sjkim2) iASL Compiler/Disassembler and Tools: 1905167802Sjkim 1906193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 1907193267Sjkimto restore original behavior. 1908167802Sjkim 1909167802Sjkim---------------------------------------- 1910167802Sjkim27 September 2006. Summary of changes for version 20060927: 1911167802Sjkim 1912167802Sjkim1) ACPI CA Core Subsystem: 1913167802Sjkim 1914193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 1915193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 1916193267Sjkimlevel indication flag is not needed. 1917167802Sjkim 1918193267SjkimFixed a problem with the Global Lock where the lock could appear to be 1919193267Sjkimobtained before it is actually obtained. The global lock semaphore was 1920193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 1921193267SjkimSuietov. 1922167802Sjkim 1923193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 1924193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 1925167802Sjkim 1926193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1927193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1928193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1929193267Sjkima much larger code and data size. 1930167802Sjkim 1931167802Sjkim Previous Release: 1932167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 1933167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 1934167802Sjkim Current Release: 1935167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 1936167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 1937167802Sjkim 1938167802Sjkim 1939167802Sjkim2) iASL Compiler/Disassembler and Tools: 1940167802Sjkim 1941193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 1942193267Sjkimnames where an "object does not exist" error could be incorrectly generated 1943193267Sjkimif the parent ResourceTemplate pathname places the template within a 1944193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 1945167802Sjkim 1946193267SjkimFixed a problem where the compiler could hang after syntax errors detected 1947193267Sjkimin an ElseIf construct. (BZ 453) 1948167802Sjkim 1949193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 1950193267Sjkimoperator. An incorrect output filename was produced when this parameter was 1951193267Sjkima null string (""). Now, the original input filename is used as the AML 1952193267Sjkimoutput filename, with an ".aml" extension. 1953167802Sjkim 1954193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 1955193267Sjkimany AML debugger command) (Valery Podrezov). 1956167802Sjkim 1957167802Sjkim---------------------------------------- 1958167802Sjkim12 September 2006. Summary of changes for version 20060912: 1959167802Sjkim 1960167802Sjkim1) ACPI CA Core Subsystem: 1961167802Sjkim 1962193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 1963193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 1964193267Sjkimspecified, instead of creating a serialization semaphore per control method, 1965193267Sjkimthe interpreter lock is simply no longer released before a blocking 1966193267Sjkimoperation during control method execution. This effectively makes the AML 1967193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 1968193267Sjkimeliminated. 1969167802Sjkim 1970193267SjkimFixed a regression where an error was no longer emitted if a control method 1971193267Sjkimattempts to create 2 objects of the same name. This once again returns 1972193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 1973193267Sjkimwill dynamically serialize the control method to possible prevent future 1974193267Sjkimerrors. (BZ 440) 1975167802Sjkim 1976193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 1977193267SjkimConfig Space setup procedure. (BZ 7145) 1978167802Sjkim 1979193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 1980193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 1981193267Sjkimtable is loaded. 1982167802Sjkim 1983193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 1984193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 1985193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 1986167802Sjkim 1987193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1988193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1989193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1990193267Sjkima much larger code and data size. 1991167802Sjkim 1992167802Sjkim Previous Release: 1993167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 1994167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 1995167802Sjkim Current Release: 1996167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 1997167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 1998167802Sjkim 1999167802Sjkim 2000167802Sjkim2) iASL Compiler/Disassembler and Tools: 2001167802Sjkim 2002193267SjkimFixed a problem with the implementation of the Switch() operator where the 2003193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 2004193267Sjkimat method level. This could cause a problem if the Switch() operator is 2005193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 2006167802Sjkim 2007193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 2008193267Sjkimoperator. Now, ignore it and continue. 2009167802Sjkim 2010193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 2011193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 2012167802Sjkim 2013193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 2014193267Sjkimeach output line with the current buffer offset. 2015167802Sjkim 2016193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 2017193267Sjkimthe end of some of the subtables. 2018167802Sjkim 2019193267SjkimThe disassembler now emits a comment if a buffer appears to be a 2020193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 2021193267Sjkimnot appear at the very end of the buffer. 2022167802Sjkim 2023193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 2024193267Sjkimof the AML interpreter. 2025167802Sjkim 2026167802Sjkim---------------------------------------- 2027167802Sjkim31 August 2006. Summary of changes for version 20060831: 2028167802Sjkim 2029167802Sjkim1) ACPI CA Core Subsystem: 2030167802Sjkim 2031167802SjkimMiscellaneous fixes for the Table Manager: 2032193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 2033167802Sjkim- Fixed a couple table mapping issues during table load 2034167802Sjkim- Fixed a couple alignment issues for IA64 2035167802Sjkim- Initialize input array to zero in AcpiInitializeTables 2036193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 2037193267SjkimAcpiGetTableByIndex 2038167802Sjkim 2039193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 2040193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 2041193267Sjkimprevent other wake GPEs from interrupting the wake process. 2042167802Sjkim 2043193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 2044193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 2045167802Sjkim 2046193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 2047193267Sjkimboth the ACPICA headers and the disassembler. 2048167802Sjkim 2049193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2050193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2051193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2052193267Sjkima much larger code and data size. 2053167802Sjkim 2054167802Sjkim Previous Release: 2055167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2056167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2057167802Sjkim Current Release: 2058167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2059167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2060167802Sjkim 2061167802Sjkim 2062167802Sjkim2) iASL Compiler/Disassembler and Tools: 2063167802Sjkim 2064167802SjkimDisassembler support for the DMAR ACPI table. 2065167802Sjkim 2066167802Sjkim---------------------------------------- 2067167802Sjkim23 August 2006. Summary of changes for version 20060823: 2068167802Sjkim 2069167802Sjkim1) ACPI CA Core Subsystem: 2070167802Sjkim 2071193267SjkimThe Table Manager component has been completely redesigned and 2072193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 2073193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 2074193267Sjkimnow possible to obtain the ACPI tables very early during kernel 2075193267Sjkiminitialization, even before dynamic memory management is initialized. 2076193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 2077167802Sjkim 2078167802SjkimObsolete ACPICA interfaces: 2079167802Sjkim 2080193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 2081193267Sjkimtime). 2082167802Sjkim- AcpiLoadTable: Not needed. 2083167802Sjkim- AcpiUnloadTable: Not needed. 2084167802Sjkim 2085167802SjkimNew ACPICA interfaces: 2086167802Sjkim 2087193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 2088193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 2089193267Sjkimallocated memory after it becomes available. 2090193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 2091193267Sjkimin the RSDT/XSDT. 2092167802Sjkim 2093167802SjkimOther ACPICA changes: 2094167802Sjkim 2095193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 2096193267SjkimAcpiOsUnmapMemory to free this mapping. 2097193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 2098193267Sjkiminternally and must not be deleted by the caller. Use of this interface 2099193267Sjkimcauses no additional dynamic memory allocation. 2100193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 2101193267Sjkimit appeared to be unused. 2102193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 2103193267Sjkimother allocation interfaces. 2104193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 2105193267Sjkimparameters. 2106193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 2107193267Sjkimbit platforms. Was previously 64 bits on all platforms. 2108193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 2109193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 2110193267Sjkimconstructed pointer to the actual global lock. 2111167802Sjkim 2112167802SjkimPorting to the new table manager: 2113167802Sjkim 2114193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 2115193267Sjkimduring the OS initialization process. It allows the host to specify an area 2116193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 2117193267Sjkimtable). This allows the host to access ACPI tables before memory management 2118193267Sjkimis initialized and running. 2119193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 2120193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 2121193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 2122193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 2123193267SjkimTable Manager, and does not have to be called before the Table Manager can 2124193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 2125193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 2126193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 2127193267SjkimFor example, bitfields have been completely removed because of their lack of 2128193267Sjkimportability across C compilers. 2129193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 2130193267Sjkimversions are used. (see acwin.h) 2131167802Sjkim 2132167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 2133167802Sjkim 2134167802SjkimNew files: tbfind.c 2135167802Sjkim 2136193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2137193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2138193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2139193267Sjkima much larger code and data size. 2140167802Sjkim 2141167802Sjkim Previous Release: 2142167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2143167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2144167802Sjkim Current Release: 2145167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2146167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2147167802Sjkim 2148167802Sjkim 2149167802Sjkim2) iASL Compiler/Disassembler and Tools: 2150167802Sjkim 2151167802SjkimNo changes for this release. 2152167802Sjkim 2153167802Sjkim---------------------------------------- 2154167802Sjkim21 July 2006. Summary of changes for version 20060721: 2155167802Sjkim 2156167802Sjkim1) ACPI CA Core Subsystem: 2157167802Sjkim 2158193267SjkimThe full source code for the ASL test suite used to validate the iASL 2159193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 2160193267Sjkimsource for the first time. The source is contained in a separate package and 2161193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 2162193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 2163167802SjkimSuietov) 2164167802Sjkim 2165193267SjkimCompleted a new design and implementation for support of the ACPI Global 2166193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 2167193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 2168193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 2169193267Sjkimlock - especially in cases such as the Embedded Controller driver where 2170193267Sjkimthere is a tight coupling between the OS and the BIOS. 2171167802Sjkim 2172193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 2173193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 2174193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 2175193267Sjkimis signaled directly from the interrupt handler. 2176167802Sjkim 2177193267SjkimImplemented support within the AML interpreter for package objects that 2178193267Sjkimcontain a larger AML length (package list length) than the package element 2179193267Sjkimcount. In this case, the length of the package is truncated to match the 2180193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 2181193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 2182193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 2183167802Sjkim 2184193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 2185193267Sjkimsupport all constant values, now including the Zero and One opcodes. 2186193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 2187193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 2188193267Sjkimconstant values for this parameter. 2189167802Sjkim 2190167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2191193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 2192193267Sjkim350) 2193167802Sjkim 2194193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2195193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2196193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2197193267Sjkima much larger code and data size. 2198167802Sjkim 2199167802Sjkim Previous Release: 2200167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 2201167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 2202167802Sjkim Current Release: 2203167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2204167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2205167802Sjkim 2206167802Sjkim 2207167802Sjkim2) iASL Compiler/Disassembler and Tools: 2208167802Sjkim 2209167802SjkimNo changes for this release. 2210167802Sjkim 2211167802Sjkim---------------------------------------- 2212167802Sjkim07 July 2006. Summary of changes for version 20060707: 2213167802Sjkim 2214167802Sjkim1) ACPI CA Core Subsystem: 2215167802Sjkim 2216193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 2217193267Sjkimthat do not allow the initialization of address pointers within packed 2218193267Sjkimstructures - even though the hardware itself may support misaligned 2219193267Sjkimtransfers. Some of the debug data structures are packed by default to 2220193267Sjkimminimize size. 2221167802Sjkim 2222193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 2223193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 2224193267Sjkimoperation of AML mutexes and recursive control methods. 2225167802Sjkim 2226193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 2227193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 2228193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 2229193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 2230167802Sjkim 2231193267SjkimFixed a possible leak of an OwnerID in the error path of 2232193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 2233193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 2234193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 2235193267SjkimLance Ortiz.) 2236167802Sjkim 2237193267SjkimFixed a problem with Serialized control methods where the semaphore 2238193267Sjkimassociated with the method could be over-signaled after multiple method 2239193267Sjkiminvocations. 2240167802Sjkim 2241193267SjkimFixed two issues with the locking of the internal namespace data structure. 2242193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 2243193267Sjkimnamespace during the namespace deletion associated with the table unload 2244193267Sjkim(with assistance from Linn Crosetto.) 2245167802Sjkim 2246167802SjkimFixed problem reports (Valery Podrezov) integrated: 2247193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 2248167802Sjkim 2249167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2250167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 2251193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 2252193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 2253193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 2254193267Sjkim(BZ 376) 2255193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 2256167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 2257193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 2258193267SjkimHandler (BZ (380) 2259193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 2260193267Sjkim(BZ 381) 2261167802Sjkim 2262193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2263193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2264193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2265193267Sjkima much larger code and data size. 2266167802Sjkim 2267167802Sjkim Previous Release: 2268167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2269167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2270167802Sjkim Current Release: 2271167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2272167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2273167802Sjkim 2274167802Sjkim 2275167802Sjkim2) iASL Compiler/Disassembler and Tools: 2276167802Sjkim 2277167802SjkimFixed problem reports: 2278193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 2279193267Sjkim436) 2280167802Sjkim 2281167802Sjkim---------------------------------------- 2282167802Sjkim23 June 2006. Summary of changes for version 20060623: 2283167802Sjkim 2284167802Sjkim1) ACPI CA Core Subsystem: 2285167802Sjkim 2286193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 2287193267Sjkimallows the type to be customized to the host OS for improved efficiency 2288193267Sjkim(since a spinlock is usually a very small object.) 2289167802Sjkim 2290193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 2291193267Sjkimthe ACPI specification, these bits should be preserved when writing the 2292193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 2293193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 2294167802Sjkim 2295193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 2296193267Sjkimhost operating systems have separate mutex and semaphore objects, this 2297193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 2298193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 2299193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 2300193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 2301193267Sjkimat this time. (See acpiosxf.h) 2302167802Sjkim 2303193267SjkimFixed several problems with the support for the control method SyncLevel 2304193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 2305193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 2306193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 2307193267Sjkimis now implemented with a mutex instead of a semaphore. 2308167802Sjkim 2309193267SjkimFixed three instances of the use of the C shift operator in the bitfield 2310193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 2311193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 2312193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 2313193267Sjkimavoided. (Fiodor Suietov) 2314167802Sjkim 2315193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 2316193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 2317193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 2318193267Sjkimthe tables present in the RSDT/XSDT.) 2319167802Sjkim 2320193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2321193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2322193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2323193267Sjkima much larger code and data size. 2324167802Sjkim 2325167802Sjkim Previous Release: 2326167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2327167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2328167802Sjkim Current Release: 2329167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2330167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2331167802Sjkim 2332167802Sjkim 2333167802Sjkim2) iASL Compiler/Disassembler and Tools: 2334167802Sjkim 2335167802SjkimNo changes for this release. 2336167802Sjkim 2337167802Sjkim---------------------------------------- 2338167802Sjkim08 June 2006. Summary of changes for version 20060608: 2339167802Sjkim 2340167802Sjkim1) ACPI CA Core Subsystem: 2341167802Sjkim 2342193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 2343193267Sjkimchange should eliminate all problems caused by attempting to acquire a 2344193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 2345193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 2346193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 2347193267Sjkimable to eliminate any workarounds for being called at interrupt level. 2348167802Sjkim 2349193267SjkimFixed a regression introduced in 20060526 where the ACPI device 2350193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 2351193267Sjkimdid not have an optional _INI method. 2352167802Sjkim 2353193267SjkimFixed an IndexField issue where a write to the Data Register should be 2354193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 2355193267SjkimFiodor Suietov) 2356167802Sjkim 2357167802SjkimFixed problem reports (Valery Podrezov) integrated: 2358193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 2359167802Sjkim 2360167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2361193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 2362167802Sjkim 2363193267SjkimRemoved four global mutexes that were obsolete and were no longer being 2364193267Sjkimused. 2365167802Sjkim 2366193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2367193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2368193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2369193267Sjkima much larger code and data size. 2370167802Sjkim 2371167802Sjkim Previous Release: 2372167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 2373167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 2374167802Sjkim Current Release: 2375167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2376167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2377167802Sjkim 2378167802Sjkim 2379167802Sjkim2) iASL Compiler/Disassembler and Tools: 2380167802Sjkim 2381193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 2382193267Sjkimmachines. 2383167802Sjkim 2384167802SjkimFixed problem reports integrated: 2385193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 2386193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 2387193267SjkimSuietov) 2388167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 2389167802Sjkim 2390167802Sjkim---------------------------------------- 2391167802Sjkim26 May 2006. Summary of changes for version 20060526: 2392167802Sjkim 2393167802Sjkim1) ACPI CA Core Subsystem: 2394167802Sjkim 2395193267SjkimRestructured, flattened, and simplified the internal interfaces for 2396193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 2397193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 2398167802Sjkim 2399193267SjkimFixed a problem with the CopyObject operator where the first parameter was 2400193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 2401193267SjkimCaused various errors and unexpected behavior. 2402167802Sjkim 2403193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 2404193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 2405193267Sjkimcompilers when the shift value is larger than the datatype width is 2406193267Sjkimapparently not well defined, the interpreter now detects this condition and 2407193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 2408167802Sjkim 2409167802SjkimFixed problem reports (Valery Podrezov) integrated: 2410193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 2411193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 2412167802Sjkim 2413167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2414193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 2415193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 2416193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 2417193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 2418167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 2419193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 2420167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 2421167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 2422193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 2423193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 2424193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 2425167802Sjkim 2426193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2427193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2428193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2429193267Sjkima much larger code and data size. 2430167802Sjkim 2431167802Sjkim Previous Release: 2432167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 2433167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 2434167802Sjkim Current Release: 2435167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 2436167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 2437167802Sjkim 2438167802Sjkim 2439167802Sjkim2) iASL Compiler/Disassembler and Tools: 2440167802Sjkim 2441193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 2442193267Sjkimnamespace identifiers with no collision with existing resource descriptor 2443193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 2444193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 2445167802Sjkimerrors. (With assistance from Thomas Renninger) 2446167802Sjkim 2447193267SjkimDisassembler: fixed an incorrect disassembly problem with the 2448193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 2449193267Sjkimdisassembly of some Alias operators. 2450167802Sjkim 2451167802Sjkim---------------------------------------- 2452167802Sjkim12 May 2006. Summary of changes for version 20060512: 2453167802Sjkim 2454167802Sjkim1) ACPI CA Core Subsystem: 2455167802Sjkim 2456193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 2457193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 2458193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 2459193267SjkimType parameter. The Type tells the host what type of execution is being 2460193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 2461193267SjkimThis allows the host to queue and execute the request as appropriate for the 2462193267Sjkimrequest type, possibly using different work queues and different priorities 2463193267Sjkimfor the various request types. This enables fixes for multithreading 2464193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 2465193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 2466167802Sjkim 2467193267SjkimFixed a possible memory leak associated with the support for the so-called 2468193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 2469193267SjkimSuietov) 2470167802Sjkim 2471193267SjkimFixed a problem with the Load() operator where a table load from an 2472193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 2473193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 2474167802Sjkim 2475193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2476193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2477193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2478193267Sjkima much larger code and data size. 2479167802Sjkim 2480167802Sjkim Previous Release: 2481167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 2482167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 2483167802Sjkim Current Release: 2484167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 2485167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 2486167802Sjkim 2487167802Sjkim 2488167802Sjkim 2489167802Sjkim2) iASL Compiler/Disassembler and Tools: 2490167802Sjkim 2491193267SjkimDisassembler: Implemented support to cross reference the internal namespace 2492193267Sjkimand automatically generate ASL External() statements for symbols not defined 2493193267Sjkimwithin the current table being disassembled. This will simplify the 2494193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 2495193267Sjkimthese statements will no longer have to be added manually. 2496167802Sjkim 2497193267SjkimDisassembler: Implemented experimental support to automatically detect 2498193267Sjkiminvocations of external control methods and generate appropriate External() 2499193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 2500193267Sjkimuntil the number of arguments for each control method is known. Currently, 2501193267Sjkimstandalone method invocations and invocations as the source operand of a 2502193267SjkimStore() statement are supported. 2503167802Sjkim 2504193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 2505193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 2506193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 2507193267Sjkimmore readable and likely closer to the original ASL source. 2508167802Sjkim 2509167802Sjkim---------------------------------------- 2510167802Sjkim21 April 2006. Summary of changes for version 20060421: 2511167802Sjkim 2512167802Sjkim1) ACPI CA Core Subsystem: 2513167802Sjkim 2514193267SjkimRemoved a device initialization optimization introduced in 20051216 where 2515193267Sjkimthe _STA method was not run unless an _INI was also present for the same 2516193267Sjkimdevice. This optimization could cause problems because it could allow _INI 2517193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 2518193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 2519193267Sjkimbe discovered, and the children of the device would be incorrectly 2520167802Sjkimtraversed.) 2521167802Sjkim 2522193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 2523193267Sjkimcontain _INI are identified and ignored during device initialization. 2524193267SjkimSelectively running _STA can significantly improve boot time on large 2525193267Sjkimmachines (with assistance from Len Brown.) 2526167802Sjkim 2527193267SjkimImplemented support for the device initialization case where the returned 2528193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 2529193267Sjkimis not run, but the device children are examined for presence, as per the 2530193267SjkimACPI specification. 2531167802Sjkim 2532193267SjkimImplemented an additional change to the IndexField support in order to 2533193267Sjkimconform to MS behavior. The value written to the Index Register is not 2534193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 2535193267Sjkimthe parent Index Field. (Fiodor Suietov) 2536167802Sjkim 2537193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 2538193267Sjkiminterface is called during the creation of all AML operation regions, and 2539193267Sjkimallows the host OS to exert control over what addresses it will allow the 2540193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 2541193267Sjkimcause a runtime exception when they are actually accessed (will not affect 2542193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 2543167802Sjkimimplementation. 2544167802Sjkim 2545193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 2546193267Sjkiminterface allows the host OS to match the various "optional" 2547193267Sjkiminterface/behavior strings for the _OSI predefined control method as 2548193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 2549193267Sjkimfor an example implementation. 2550167802Sjkim 2551193267SjkimRestructured and corrected various problems in the exception handling code 2552193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 2553193267Sjkim(with assistance from Takayoshi Kochi.) 2554167802Sjkim 2555193267SjkimModified the Linux source converter to ignore quoted string literals while 2556193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 2557193267Sjkimwith the disassembler and other areas where such strings must not be 2558193267Sjkimmodified. 2559167802Sjkim 2560193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 2561193267Sjkimname. This allows the Linux source converter to convert the names, now that 2562193267Sjkimthe converter ignores quoted strings. 2563167802Sjkim 2564193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2565193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2566193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2567193267Sjkima much larger code and data size. 2568193267Sjkim 2569167802Sjkim Previous Release: 2570167802Sjkim 2571167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 2572167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 2573167802Sjkim Current Release: 2574167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 2575167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 2576167802Sjkim 2577167802Sjkim 2578167802Sjkim2) iASL Compiler/Disassembler and Tools: 2579167802Sjkim 2580193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 2581193267Sjkim(w2 flag). 2582167802Sjkim 2583193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 2584193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 2585193267Sjkimcheck for the possible timeout, a warning is issued. 2586167802Sjkim 2587193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 2588193267Sjkimoperand and it also does not use the function return value from the 2589193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 2590167802Sjkim 2591193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 2592193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 2593193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 2594193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 2595193267Sjkimdon't look like they will ever be used. For example, the reserved methods 2596193267Sjkim(starting with an underscore) are usually not referenced because it is 2597193267Sjkimexpected that the OS will invoke them. 2598167802Sjkim 2599167802Sjkim---------------------------------------- 2600167802Sjkim31 March 2006. Summary of changes for version 20060331: 2601167802Sjkim 2602167802Sjkim1) ACPI CA Core Subsystem: 2603167802Sjkim 2604193267SjkimImplemented header file support for the following additional ACPI tables: 2605193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 2606193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 2607193267Sjkimare available for use by device drivers and other software. 2608167802Sjkim 2609193267SjkimImplemented support to allow tables that contain ACPI names with invalid 2610193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 2611193267Sjkimfail, but since there are several known cases of such tables on existing 2612193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 2613193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 2614167802Sjkim 2615193267SjkimFixed a couple regressions introduced during the memory optimization in the 2616193267Sjkim20060317 release. The namespace node definition required additional 2617193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 2618193267Sjkimrestored to 32-bit. (Valery Podrezov) 2619167802Sjkim 2620193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 2621193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 2622193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 2623193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 2624167802Sjkim(Valery Podrezov, Fiodor Suietov) 2625167802Sjkim 2626193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 2627193267Sjkimregion where a cached memory mapping was not deleted. This became a 2628193267Sjkimnoticeable problem for operation regions that are defined within frequently 2629193267Sjkimused control methods. (Dana Meyers) 2630167802Sjkim 2631193267SjkimReorganized the ACPI table header files into two main files: one for the 2632193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 2633193267SjkimACPI tables that are consumed by the drivers and other software. The various 2634193267SjkimFADT definitions were merged into one common section and three different 2635193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 2636167802Sjkim 2637193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2638193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2639193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2640193267Sjkima much larger code and data size. 2641167802Sjkim 2642167802Sjkim Previous Release: 2643167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 2644167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 2645167802Sjkim Current Release: 2646167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 2647167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 2648167802Sjkim 2649167802Sjkim 2650167802Sjkim2) iASL Compiler/Disassembler and Tools: 2651167802Sjkim 2652193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 2653193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 2654193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 2655193267Sjkimsupported. 2656167802Sjkim 2657193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 2658193267Sjkimenables the disassembly of such tables. Invalid characters within names are 2659193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 2660193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 2661193267Sjkimcharacter. 2662167802Sjkim 2663193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 2664193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 2665167802Sjkim 2666193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 2667193267Sjkimmakefile for the AcpiXtract utility. 2668167802Sjkim 2669167802Sjkim---------------------------------------- 2670167802Sjkim17 March 2006. Summary of changes for version 20060317: 2671167802Sjkim 2672167802Sjkim1) ACPI CA Core Subsystem: 2673167802Sjkim 2674193267SjkimImplemented the use of a cache object for all internal namespace nodes. 2675193267SjkimSince there are about 1000 static nodes in a typical system, this will 2676193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 2677193267Sjkimoverhead (such as a slab allocator.) 2678167802Sjkim 2679193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 2680193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 2681193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 2682193267Sjkimand 32 bytes for the 64-bit case. 2683167802Sjkim 2684193267SjkimOptimized several internal data structures to reduce object size on 64-bit 2685193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 2686193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 2687193267Sjkiminstances corresponding to the namespace objects. 2688167802Sjkim 2689193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 2690193267Sjkimand "Windows 2006". 2691167802Sjkim 2692193267SjkimSplit the allocation tracking mechanism out to a separate file, from 2693193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 2694193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 2695193267Sjkimdistributions. 2696167802Sjkim 2697193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 2698193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 2699193267Sjkimmacros.) 2700167802Sjkim 2701193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2702193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2703193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2704193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2705193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2706193267Sjkimcompiler options used during generation. 2707167802Sjkim 2708167802Sjkim Previous Release: 2709167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2710167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 2711167802Sjkim Current Release: 2712167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 2713167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 2714167802Sjkim 2715167802Sjkim 2716167802Sjkim2) iASL Compiler/Disassembler and Tools: 2717167802Sjkim 2718193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 2719193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 2720193267Sjkimfile and dump the binary output to separate files. It can also display a 2721193267Sjkimsummary of the input file including the headers for each table found and 2722193267Sjkimwill extract any single ACPI table, with any signature. (See 2723167802Sjkimsource/tools/acpixtract) 2724167802Sjkim 2725167802Sjkim---------------------------------------- 2726167802Sjkim10 March 2006. Summary of changes for version 20060310: 2727167802Sjkim 2728167802Sjkim1) ACPI CA Core Subsystem: 2729167802Sjkim 2730193267SjkimTagged all external interfaces to the subsystem with the new 2731193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 2732193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 2733193267Sjkimmacro. The default definition is NULL. 2734167802Sjkim 2735193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 2736193267SjkimThis allows the host to define this as necessary to simplify kernel 2737193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 2738167802Sjkim 2739193267SjkimFixed two interpreter problems related to error processing, the deletion of 2740193267Sjkimobjects, and placing invalid pointers onto the internal operator result 2741193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 2742167802Sjkim 2743193267SjkimIncreased the reference count threshold where a warning is emitted for large 2744193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 2745193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 2746193267Sjkim0x800. 2747167802Sjkim 2748193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 2749193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 2750193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 2751193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 2752193267SjkimACPI_FREE. 2753167802Sjkim 2754193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2755193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2756193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2757193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2758193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2759193267Sjkimcompiler options used during generation. 2760167802Sjkim 2761167802Sjkim Previous Release: 2762167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 2763167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 2764167802Sjkim Current Release: 2765167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2766167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 2767167802Sjkim 2768167802Sjkim 2769167802Sjkim2) iASL Compiler/Disassembler: 2770167802Sjkim 2771193267SjkimDisassembler: implemented support for symbolic resource descriptor 2772193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 2773193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 2774193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 2775193267Sjkimthis support brings the disassembled code very close to the original ASL 2776193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 2777193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 2778193267Sjkimfixed offsets. 2779167802Sjkim 2780193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 2781193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 2782193267Sjkimspecification, and will be added for ACPI 3.0b. 2783167802Sjkim 2784193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 2785193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 2786167802Sjkim 2787193267SjkimFixed a problem with the error message that occurs when an invalid string is 2788193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 2789193267SjkimThe correct message is now displayed. 2790167802Sjkim 2791167802Sjkim---------------------------------------- 2792167802Sjkim17 February 2006. Summary of changes for version 20060217: 2793167802Sjkim 2794167802Sjkim1) ACPI CA Core Subsystem: 2795167802Sjkim 2796193267SjkimImplemented a change to the IndexField support to match the behavior of the 2797193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 2798193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 2799193267SjkimThis should fix IndexField problems seen on some machines where the Data 2800193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 2801193267Sjkimclarified on this point. 2802167802Sjkim 2803193267SjkimFixed a problem where several resource descriptor types could overrun the 2804193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 2805193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 2806193267Sjkimaffect all platforms. 2807167802Sjkim 2808193267SjkimFixed a problem where individual resource descriptors were misaligned within 2809193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 2810167802Sjkim 2811193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 2812193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 2813193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 2814193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 2815193267Sjkimvalues will vary depending on the efficiency of the compiler and the 2816193267Sjkimcompiler options used during generation. 2817167802Sjkim 2818167802Sjkim Previous Release: 2819167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2820167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 2821167802Sjkim Current Release: 2822167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 2823167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 2824167802Sjkim 2825167802Sjkim 2826167802Sjkim2) iASL Compiler/Disassembler: 2827167802Sjkim 2828193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 2829193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 2830193267Sjkimdefined method (Throttling Depth Limit.) 2831167802Sjkim 2832193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 2833193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 2834167802Sjkim 2835167802Sjkim---------------------------------------- 2836167802Sjkim10 February 2006. Summary of changes for version 20060210: 2837167802Sjkim 2838167802Sjkim1) ACPI CA Core Subsystem: 2839167802Sjkim 2840193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 2841193267Sjkimnormal execution. These became apparent after the conversion from 2842193267SjkimACPI_DEBUG_PRINT. 2843167802Sjkim 2844193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 2845193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 2846167802Sjkim 2847193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 2848193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 2849193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 2850167802Sjkim 2851193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 2852193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 2853193267Sjkim5480) 2854167802Sjkim 2855193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 2856193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 2857193267Sjkim(Valery Podrezov, BZ 5427) 2858167802Sjkim 2859193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 2860193267SjkimPodrezov, BZ 5336) 2861167802Sjkim 2862167802SjkimFixed several warnings during the 64-bit code generation. 2863167802Sjkim 2864193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 2865193267Sjkimafter an if() statement that is followed immediately by a comment, improving 2866193267Sjkimreadability of the Linux code. 2867167802Sjkim 2868193267SjkimCode and Data Size: The current and previous library sizes for the core 2869193267Sjkimsubsystem are shown below. These are the code and data sizes for the 2870193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 2871193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 2872193267Sjkimcode includes the debug output trace mechanism and has a much larger code 2873193267Sjkimand data size. Note that these values will vary depending on the efficiency 2874193267Sjkimof the compiler and the compiler options used during generation. 2875167802Sjkim 2876167802Sjkim Previous Release: 2877167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 2878167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 2879167802Sjkim Current Release: 2880167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 2881167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 2882167802Sjkim 2883167802Sjkim 2884167802Sjkim2) iASL Compiler/Disassembler: 2885167802Sjkim 2886193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 2887193267Sjkimexpression for the BankValue parameter. 2888167802Sjkim 2889167802Sjkim---------------------------------------- 2890167802Sjkim27 January 2006. Summary of changes for version 20060127: 2891167802Sjkim 2892167802Sjkim1) ACPI CA Core Subsystem: 2893167802Sjkim 2894193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 2895193267Sjkimreferences within resource package objects for the _PRT method. This support 2896193267Sjkimis in addition to the previously implemented unresolved reference support 2897193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 2898193267Sjkimunresolved references will be passed through to the caller as a NULL package 2899167802Sjkimentry. 2900167802Sjkim 2901193267SjkimImplemented and deployed new macros and functions for error and warning 2902193267Sjkimmessages across the subsystem. These macros are simpler and generate less 2903193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 2904193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 2905193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 2906193267Sjkimmacros. 2907167802Sjkim 2908193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 2909193267SjkimAcquire/Release Lock OSL interfaces. 2910167802Sjkim 2911193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 2912193267Sjkimresolved, in both the interpreter and the iASL compiler. 2913167802Sjkim 2914193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 2915193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 2916193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 2917193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 2918167802Sjkimcause a fatal exception. 2919167802Sjkim 2920193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 2921193267Sjkiminterface. (With assistance from Thomas Renninger) 2922167802Sjkim 2923193267SjkimCode and Data Size: The current and previous library sizes for the core 2924193267Sjkimsubsystem are shown below. These are the code and data sizes for the 2925193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 2926193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 2927193267Sjkimcode includes the debug output trace mechanism and has a much larger code 2928193267Sjkimand data size. Note that these values will vary depending on the efficiency 2929193267Sjkimof the compiler and the compiler options used during generation. 2930167802Sjkim 2931167802Sjkim Previous Release: 2932167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 2933167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 2934167802Sjkim Current Release: 2935167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 2936167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 2937167802Sjkim 2938167802Sjkim 2939167802Sjkim2) iASL Compiler/Disassembler: 2940167802Sjkim 2941193267SjkimFixed an internal error that was generated for any forward references to ASL 2942193267SjkimAlias objects. 2943167802Sjkim 2944167802Sjkim---------------------------------------- 2945167802Sjkim13 January 2006. Summary of changes for version 20060113: 2946167802Sjkim 2947167802Sjkim1) ACPI CA Core Subsystem: 2948167802Sjkim 2949193267SjkimAdded 2006 copyright to all module headers and signons. This affects 2950193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 2951193267Sjkimutilities. 2952193267Sjkim 2953193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 2954193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 2955193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 2956193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 2957193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 2958193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 2959193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 2960193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 2961193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 2962193267Sjkimbut all error/warning reporting may be disabled if desired (and code 2963193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 2964193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 2965193267Sjkimthe same. 2966167802Sjkim 2967193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 2968193267Sjkimnot properly deleted for every successful invocation of the command. 2969167802Sjkim 2970193267SjkimCode and Data Size: The current and previous library sizes for the core 2971193267Sjkimsubsystem are shown below. These are the code and data sizes for the 2972193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 2973193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 2974193267Sjkimcode includes the debug output trace mechanism and has a much larger code 2975193267Sjkimand data size. Note that these values will vary depending on the efficiency 2976193267Sjkimof the compiler and the compiler options used during generation. 2977167802Sjkim 2978167802Sjkim Previous Release: 2979167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 2980167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 2981167802Sjkim Current Release: 2982167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 2983167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 2984167802Sjkim 2985167802Sjkim 2986167802Sjkim2) iASL Compiler/Disassembler: 2987167802Sjkim 2988193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 2989193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 2990167802Sjkim 2991167802Sjkim---------------------------------------- 2992167802Sjkim16 December 2005. Summary of changes for version 20051216: 2993167802Sjkim 2994167802Sjkim1) ACPI CA Core Subsystem: 2995167802Sjkim 2996193267SjkimImplemented optional support to allow unresolved names within ASL Package 2997193267Sjkimobjects. A null object is inserted in the package when a named reference 2998193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 2999193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 3000193267Sjkimthat contain such code. 3001167802Sjkim 3002193267SjkimImplemented an optimization to the initialization sequence that can improve 3003193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 3004193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 3005193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 3006193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 3007167802Sjkim(Prototype and assistance from Dong Wei) 3008167802Sjkim 3009193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 3010193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 3011193267Sjkimused as before. 3012167802Sjkim 3013193267SjkimFixed some possible memory leaks found within the execution path of the 3014193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 3015167802Sjkim 3016193267SjkimFixed a problem introduced in the 20051202 release where an exception is 3017193267Sjkimgenerated during method execution if a control method attempts to declare 3018193267Sjkimanother method. 3019167802Sjkim 3020193267SjkimMoved resource descriptor string constants that are used by both the AML 3021193267Sjkimdisassembler and AML debugger to the common utilities directory so that 3022193267Sjkimthese components are independent. 3023167802Sjkim 3024193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 3025193267Sjkimexceptions during control method execution (method is not aborted.) 3026167802Sjkim 3027193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 3028193267Sjkimgeneration. 3029167802Sjkim 3030193267SjkimCode and Data Size: The current and previous library sizes for the core 3031193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3032193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3033193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3034193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3035193267Sjkimand data size. Note that these values will vary depending on the efficiency 3036193267Sjkimof the compiler and the compiler options used during generation. 3037167802Sjkim 3038167802Sjkim Previous Release: 3039167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3040167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3041167802Sjkim Current Release: 3042167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3043167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3044167802Sjkim 3045167802Sjkim 3046167802Sjkim2) iASL Compiler/Disassembler: 3047167802Sjkim 3048193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 3049193267Sjkimmethod call was made from within a Return statement. 3050167802Sjkim 3051167802Sjkim---------------------------------------- 3052167802Sjkim02 December 2005. Summary of changes for version 20051202: 3053167802Sjkim 3054167802Sjkim1) ACPI CA Core Subsystem: 3055167802Sjkim 3056193267SjkimModified the parsing of control methods to no longer create namespace 3057193267Sjkimobjects during the first pass of the parse. Objects are now created only 3058193267Sjkimduring the execute phase, at the moment the namespace creation operator is 3059193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 3060193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 3061193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 3062193267Sjkimcorrectly block multiple threads from attempting to create the same object 3063193267Sjkimmore than once. 3064167802Sjkim 3065193267SjkimIncreased the number of available Owner Ids for namespace object tracking 3066193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 3067193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 3068167802Sjkim 3069193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 3070193267Sjkim-b switch (batch mode) is used. 3071167802Sjkim 3072193267SjkimEnhanced the namespace dump routine to output the owner ID for each 3073193267Sjkimnamespace object. 3074167802Sjkim 3075193267SjkimCode and Data Size: The current and previous library sizes for the core 3076193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3077193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3078193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3079193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3080193267Sjkimand data size. Note that these values will vary depending on the efficiency 3081193267Sjkimof the compiler and the compiler options used during generation. 3082167802Sjkim 3083167802Sjkim Previous Release: 3084167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3085167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3086167802Sjkim Current Release: 3087167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3088167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3089167802Sjkim 3090167802Sjkim 3091167802Sjkim2) iASL Compiler/Disassembler: 3092167802Sjkim 3093193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 3094193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 3095193267Sjkimand this error is now detected and flagged during the analysis phase. 3096167802Sjkim 3097193267SjkimDisassembler: The disassembly now includes the contents of the original 3098193267Sjkimtable header within a comment at the start of the file. This includes the 3099193267Sjkimname and version of the original ASL compiler. 3100167802Sjkim 3101167802Sjkim---------------------------------------- 3102167802Sjkim17 November 2005. Summary of changes for version 20051117: 3103167802Sjkim 3104167802Sjkim1) ACPI CA Core Subsystem: 3105167802Sjkim 3106193267SjkimFixed a problem in the AML parser where the method thread count could be 3107193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 3108193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 3109193267SjkimThis also fixed a related regression with the mechanism that detects and 3110193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 3111193267Sjkimdeployment of the new OwnerId mechanism.) 3112167802Sjkim 3113193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 3114193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 3115193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 3116193267Sjkimload should not be aborted if there are problems with any single control 3117193267Sjkimmethod, thus rendering this feature rather pointless. 3118167802Sjkim 3119193267SjkimFixed a problem with the new table-driven resource manager where an internal 3120193267Sjkimbuffer overflow could occur for small resource templates. 3121167802Sjkim 3122193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 3123193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 3124193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 3125167802Sjkim 3126193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 3127193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 3128193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 3129193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 3130193267SjkimToString operator. 3131167802Sjkim 3132193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 3133193267Sjkimon a semaphore object would incorrectly timeout. This allows the 3134193267Sjkimmultithreading features of the AcpiExec utility to work properly under 3135193267SjkimWindows. 3136167802Sjkim 3137193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 3138193267Sjkimthe recently added file named "utresrc.c". 3139167802Sjkim 3140193267SjkimCode and Data Size: The current and previous library sizes for the core 3141193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3142193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3143193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3144193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3145193267Sjkimand data size. Note that these values will vary depending on the efficiency 3146193267Sjkimof the compiler and the compiler options used during generation. 3147167802Sjkim 3148167802Sjkim Previous Release: 3149167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3150167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3151167802Sjkim Current Release: 3152167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3153167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3154167802Sjkim 3155167802Sjkim 3156167802Sjkim2) iASL Compiler/Disassembler: 3157167802Sjkim 3158193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 3159193267Sjkimspecification. For the iASL compiler, this means that string literals within 3160193267Sjkimthe source ASL can be of any length. 3161167802Sjkim 3162193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 3163193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 3164193267Sjkimthe end of the entire resource template. 3165167802Sjkim 3166193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 3167193267Sjkimconstructed during the parse phase, before any transforms are applied to the 3168193267Sjkimtree. The transformed tree is dumped also. 3169167802Sjkim 3170167802Sjkim---------------------------------------- 3171167802Sjkim02 November 2005. Summary of changes for version 20051102: 3172167802Sjkim 3173167802Sjkim1) ACPI CA Core Subsystem: 3174167802Sjkim 3175193267SjkimModified the subsystem initialization sequence to improve GPE support. The 3176193267SjkimGPE initialization has been split into two parts in order to defer execution 3177193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 3178193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 3179193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 3180193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 3181167802Sjkim 3182193267SjkimConverted the ACPI internal object disassemble and display code within the 3183193267SjkimAML debugger to fully table-driven operation, reducing code size and 3184193267Sjkimincreasing maintainability. 3185167802Sjkim 3186193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 3187193267Sjkimin the 20051021 release. 3188167802Sjkim 3189193267SjkimImplemented support for "local" internal ACPI object types within the 3190193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 3191193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 3192193267Sjkimreference objects. 3193167802Sjkim 3194193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 3195193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 3196167802Sjkim 3197193267SjkimCode and Data Size: The current and previous library sizes for the core 3198193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3199193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3200193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3201193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3202193267Sjkimand data size. Note that these values will vary depending on the efficiency 3203193267Sjkimof the compiler and the compiler options used during generation. 3204167802Sjkim 3205167802Sjkim Previous Release: 3206167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3207167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3208167802Sjkim Current Release: 3209167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3210167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3211167802Sjkim 3212167802Sjkim 3213167802Sjkim2) iASL Compiler/Disassembler: 3214167802Sjkim 3215193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 3216193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 3217167802Sjkim 3218193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 3219193267Sjkimcharacters within comment fields. The scan is now always performed and is no 3220193267Sjkimlonger optional, detecting invalid characters within a source file 3221193267Sjkimimmediately rather than during the parse phase or later. 3222167802Sjkim 3223193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 3224193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 3225193267Sjkimreduced. This should improve performance and reduce the possibility of parse 3226193267Sjkimstack overflow. 3227167802Sjkim 3228193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 3229193267Sjkimwith the addition of a %expected statement, the compiler generates from 3230193267Sjkimsource with no warnings. 3231167802Sjkim 3232193267SjkimFixed a possible segment fault in the disassembler if the input filename 3233193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 3234167802Sjkim 3235167802Sjkim---------------------------------------- 3236151937Sjkim21 October 2005. Summary of changes for version 20051021: 3237151937Sjkim 3238151937Sjkim1) ACPI CA Core Subsystem: 3239151937Sjkim 3240193267SjkimImplemented support for the EM64T and other x86-64 processors. This 3241193267Sjkimessentially entails recognizing that these processors support non-aligned 3242193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 3243193267Sjkimhardware support for non-aligned transfers. 3244151937Sjkim 3245193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 3246193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 3247193267Sjkiminternal format and the reverse) and the debug code to dump internal 3248193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 3249193267Sjkimimproving maintainability. 3250151937Sjkim 3251193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 3252193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 3253193267SjkimAlexey Starikovskiy) 3254151937Sjkim 3255193267SjkimImplemented support within the resource conversion code for the Type- 3256193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 3257151937Sjkim 3258193267SjkimFixed some issues within the resource conversion code for the type-specific 3259193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 3260193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 3261193267SjkimTTP flags into two separate fields. 3262151937Sjkim 3263193267SjkimCode and Data Size: The current and previous library sizes for the core 3264193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3265193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3266193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3267193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3268193267Sjkimand data size. Note that these values will vary depending on the efficiency 3269193267Sjkimof the compiler and the compiler options used during generation. 3270151937Sjkim 3271151937Sjkim Previous Release: 3272151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3273151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3274151937Sjkim Current Release: 3275151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3276151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3277151937Sjkim 3278151937Sjkim 3279167802Sjkim 3280151937Sjkim2) iASL Compiler/Disassembler: 3281151937Sjkim 3282193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 3283193267Sjkimcorresponding ResourceSource string was not also present in a resource 3284193267Sjkimdescriptor declaration. This restriction caused problems with existing 3285193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 3286193267Sjkimwas disassembled, it could not be compiled without modification. Further, 3287193267Sjkimthe modified code created a resource template with a different size than the 3288193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 3289193267Sjkimbuffer. 3290151937Sjkim 3291193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 3292193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 3293193267Sjkimreproduced when the disassembled code is recompiled. 3294151937Sjkim 3295193267SjkimImproved comments and text alignment for the resource descriptor code 3296193267Sjkimemitted by the disassembler. 3297151937Sjkim 3298193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 3299193267SjkimRegister() resource descriptor. 3300151937Sjkim 3301151937Sjkim---------------------------------------- 3302151937Sjkim30 September 2005. Summary of changes for version 20050930: 3303151937Sjkim 3304151937Sjkim1) ACPI CA Core Subsystem: 3305151937Sjkim 3306193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 3307193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 3308193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 3309193267Sjkimuse has been decreased by optimizing function parameters and local 3310193267Sjkimvariables, and naming conventions across the manager have been standardized 3311193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 3312193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 3313193267Sjkimdriver code, depending on how resources are handled by the host OS. 3314151937Sjkim 3315193267SjkimAll Resource Manager dispatch and information tables have been moved to a 3316193267Sjkimsingle location for clarity and ease of maintenance. One new file was 3317193267Sjkimcreated, named "rsinfo.c". 3318151937Sjkim 3319193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 3320193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 3321193267Sjkimto macro side-effects. However, since there exists the possibility of 3322193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 3323193267Sjkimin the debug generation case), the original macros are optionally available. 3324193267SjkimNote that some invocations of the return_VALUE macro may now cause size 3325193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 3326193267Sjkimeliminate these. (From Randy Dunlap) 3327151937Sjkim 3328193267SjkimImplemented a new mechanism to enable debug tracing for individual control 3329193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 3330193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 3331193267Sjkimdisable tracing for problematic control methods. This interface can be 3332193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 3333151937Sjkimpsxface.c for details. 3334151937Sjkim 3335193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 3336193267Sjkimspecified - a length of one is used and a warning is issued. This matches 3337193267Sjkimthe behavior of AcpiUtAllocate. 3338151937Sjkim 3339193267SjkimCode and Data Size: The current and previous library sizes for the core 3340193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3341193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3342193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3343193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3344193267Sjkimand data size. Note that these values will vary depending on the efficiency 3345193267Sjkimof the compiler and the compiler options used during generation. 3346151937Sjkim 3347151937Sjkim Previous Release: 3348151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 3349151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 3350151937Sjkim Current Release: 3351151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3352151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3353151937Sjkim 3354151937Sjkim 3355151937Sjkim2) iASL Compiler/Disassembler: 3356151937Sjkim 3357193267SjkimA remark is issued if the effective compile-time length of a package or 3358193267Sjkimbuffer is zero. Previously, this was a warning. 3359151937Sjkim 3360151937Sjkim---------------------------------------- 3361151937Sjkim16 September 2005. Summary of changes for version 20050916: 3362151937Sjkim 3363151937Sjkim1) ACPI CA Core Subsystem: 3364151937Sjkim 3365193267SjkimFixed a problem within the Resource Manager where support for the Generic 3366193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 3367193267Sjkimrecognized, parsed, disassembled, and displayed. 3368151937Sjkim 3369193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 3370193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 3371193267Sjkimreduces overall subsystem code size and code complexity. Affects the 3372193267Sjkimresource parsing and construction, disassembly, and debug dump output. 3373151937Sjkim 3374193267SjkimCleaned up and restructured the debug dump output for all resource 3375193267Sjkimdescriptors. Improved readability of the output and reduced code size. 3376151937Sjkim 3377193267SjkimFixed a problem where changes to internal data structures caused the 3378193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 3379151937Sjkim 3380193267SjkimCode and Data Size: The current and previous library sizes for the core 3381193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3382193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3383193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3384193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3385193267Sjkimand data size. Note that these values will vary depending on the efficiency 3386193267Sjkimof the compiler and the compiler options used during generation. 3387151937Sjkim 3388151937Sjkim Previous Release: 3389151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 3390151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 3391151937Sjkim Current Release: 3392151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 3393151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 3394151937Sjkim 3395151937Sjkim 3396151937Sjkim2) iASL Compiler/Disassembler: 3397151937Sjkim 3398193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 3399193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 3400193267Sjkimsimplifying compilation of the resulting ASL module. 3401151937Sjkim 3402193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 3403193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 3404193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 3405193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 3406193267Sjkimhandled correctly (especially "\\") 3407151937Sjkim 3408151937Sjkim---------------------------------------- 3409151937Sjkim02 September 2005. Summary of changes for version 20050902: 3410151937Sjkim 3411151937Sjkim1) ACPI CA Core Subsystem: 3412151937Sjkim 3413193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 3414193267Sjkimmechanisms for control method execution and recursive method invocation. 3415193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 3416193267Sjkimmessages seen on some systems. Recursive method invocation depth is 3417193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 3418151937Sjkim 3419193267SjkimCompletely eliminated all vestiges of support for the "module-level 3420193267Sjkimexecutable code" until this support is fully implemented and debugged. This 3421193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 3422193267Sjkimsome systems that invoke this support. 3423151937Sjkim 3424193267SjkimFixed a problem within the resource manager code where the transaction flags 3425193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 3426193267Sjkimspecific flag byte. 3427151937Sjkim 3428193267SjkimConsolidated duplicate code within the address descriptor resource manager 3429193267Sjkimcode, reducing overall subsystem code size. 3430151937Sjkim 3431193267SjkimFixed a fault when using the AML debugger "disassemble" command to 3432193267Sjkimdisassemble individual control methods. 3433151937Sjkim 3434193267SjkimRemoved references to the "release_current" directory within the Unix 3435193267Sjkimrelease package. 3436151937Sjkim 3437193267SjkimCode and Data Size: The current and previous core subsystem library sizes 3438193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 3439193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 3440193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 3441193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 3442193267SjkimNote that these values will vary depending on the efficiency of the compiler 3443193267Sjkimand the compiler options used during generation. 3444151937Sjkim 3445151937Sjkim Previous Release: 3446151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3447151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 3448151937Sjkim Current Release: 3449151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 3450151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 3451151937Sjkim 3452151937Sjkim 3453151937Sjkim2) iASL Compiler/Disassembler: 3454151937Sjkim 3455193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 3456193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 3457193267SjkimInterrupt(). 3458151937Sjkim 3459193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 3460193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 3461193267Sjkimlist (range 0 - 15) 3462151937Sjkim 3463193267SjkimThe maximum length string literal within an ASL file is now restricted to 3464193267Sjkim200 characters as per the ACPI specification. 3465151937Sjkim 3466193267SjkimFixed a fault when using the -ln option (generate namespace listing). 3467151937Sjkim 3468193267SjkimImplemented an error check to determine if a DescriptorName within a 3469193267Sjkimresource descriptor has already been used within the current scope. 3470151937Sjkim 3471151937Sjkim---------------------------------------- 3472151937Sjkim15 August 2005. Summary of changes for version 20050815: 3473193267Sjkim 3474151937Sjkim1) ACPI CA Core Subsystem: 3475193267Sjkim 3476193267SjkimImplemented a full bytewise compare to determine if a table load request is 3477193267Sjkimattempting to load a duplicate table. The compare is performed if the table 3478193267Sjkimsignatures and table lengths match. This will allow different tables with 3479193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 3480193267Sjkimspecification, but discovered in the field nonetheless. 3481193267Sjkim 3482193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 3483193267Sjkim 3484193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3485193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3486193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3487193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3488193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3489193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3490193267Sjkimthe compiler options used during generation. 3491193267Sjkim 3492151937Sjkim Previous Release: 3493151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3494151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 3495151937Sjkim Current Release: 3496151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3497151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 3498193267Sjkim 3499193267Sjkim 3500151937Sjkim2) iASL Compiler/Disassembler: 3501193267Sjkim 3502193267SjkimFixed a problem where incorrect AML code could be generated for Package 3503193267Sjkimobjects if optimization is disabled (via the -oa switch). 3504193267Sjkim 3505193267SjkimFixed a problem with where incorrect AML code is generated for variable- 3506193267Sjkimlength packages when the package length is not specified and the number of 3507193267Sjkiminitializer values is greater than 255. 3508193267Sjkim 3509151937Sjkim 3510151937Sjkim---------------------------------------- 3511151937Sjkim29 July 2005. Summary of changes for version 20050729: 3512151937Sjkim 3513151937Sjkim1) ACPI CA Core Subsystem: 3514151937Sjkim 3515193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 3516193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 3517193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 3518193267SjkimVenkatesh Pallipadi. 3519151937Sjkim 3520193267SjkimRestructured the main interface to the AML parser in order to correctly 3521193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 3522193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 3523193267Sjkimmachines. With assistance from Alexey Starikovskiy. 3524151937Sjkim 3525193267SjkimSupport for "module level code" has been disabled in this version due to a 3526193267Sjkimnumber of issues that have appeared on various machines. The support can be 3527193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 3528193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 3529151937Sjkimdefault again. 3530151937Sjkim 3531193267SjkimModified the internal functions for debug print support to define the 3532193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 3533193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 3534151937Sjkim 3535151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 3536151937Sjkim 3537193267SjkimImplemented support to display an object count summary for the AML Debugger 3538193267Sjkimcommands Object and Methods. 3539151937Sjkim 3540193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3541193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3542193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3543193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3544193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3545193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3546193267Sjkimthe compiler options used during generation. 3547151937Sjkim 3548151937Sjkim Previous Release: 3549151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 3550151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 3551151937Sjkim Current Release: 3552151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 3553151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 3554151937Sjkim 3555151937Sjkim 3556151937Sjkim2) iASL Compiler/Disassembler: 3557151937Sjkim 3558193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 3559193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 3560193267Sjkimreserved control method. 3561151937Sjkim 3562151937Sjkim---------------------------------------- 3563151937Sjkim08 July 2005. Summary of changes for version 20050708: 3564151937Sjkim 3565151937Sjkim1) ACPI CA Core Subsystem: 3566151937Sjkim 3567193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 3568193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 3569193267Sjkimfunction that used the debug macros. This structure has been removed in 3570193267Sjkimfavor of declaring the individual elements as parameters to the debug 3571193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 3572193267SjkimACPI function calls at the cost of a small increase in the code size of the 3573193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 3574193267SjkimLen Brown. 3575151937Sjkim 3576193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 3577193267Sjkimheaders to define a macro that will return the current function name at 3578193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 3579193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 3580193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 3581193267Sjkimpointer per function.) This mechanism is used because apparently there 3582193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 3583151937Sjkim 3584193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 3585193267Sjkimnamespace objects created/deleted by ACPI tables and control method 3586193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 3587193267Sjkimthe wraparound problem present in the previous implementation. The size of 3588193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 3589151937SjkimStarikovskiy). 3590151937Sjkim 3591193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 3592193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 3593193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 3594193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 3595193267Sjkimeliminate bitfields entirely because of a lack of portability. 3596151937Sjkim 3597193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 3598193267Sjkimis a frequently used function and this improvement increases the performance 3599193267Sjkimof the entire subsystem (Alexey Starikovskiy). 3600151937Sjkim 3601193267SjkimFixed several possible memory leaks and the inverse - premature object 3602193267Sjkimdeletion (Alexey Starikovskiy). 3603151937Sjkim 3604193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3605193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3606193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3607193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3608193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3609193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3610193267Sjkimthe compiler options used during generation. 3611151937Sjkim 3612151937Sjkim Previous Release: 3613151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 3614151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 3615151937Sjkim Current Release: 3616151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 3617151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 3618151937Sjkim 3619151937Sjkim---------------------------------------- 3620151937Sjkim24 June 2005. Summary of changes for version 20050624: 3621151937Sjkim 3622151937Sjkim1) ACPI CA Core Subsystem: 3623151937Sjkim 3624193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 3625193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 3626193267Sjkimand type this object in any manner desired, simplifying the OSL 3627193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 3628193267SjkimLinux, and should be defined in the OS-specific header file for other 3629193267Sjkimoperating systems as required. 3630151937Sjkim 3631193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 3632193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 3633193267Sjkimchange was made for performance reasons, since this is the purpose of the 3634193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 3635193267SjkimAcpiOsAllocate interface. 3636151937Sjkim 3637193267SjkimImplemented a new AML debugger command named Businfo. This command displays 3638193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 3639193267Sjkim_HID, _UID, and _CID are displayed for these devices. 3640151937Sjkim 3641193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 3642193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 3643193267Sjkimchange was required because the global initialization now calls OSL 3644193267Sjkiminterfaces. 3645151937Sjkim 3646193267SjkimEnhanced the Dump command to display the entire contents of Package objects 3647193267Sjkim(including all sub-objects and their values.) 3648151937Sjkim 3649193267SjkimRestructured the code base to split some files because of size and/or 3650193267Sjkimbecause the code logically belonged in a separate file. New files are listed 3651193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 3652193267Sjkimbeen updated. 3653151937Sjkim utilities/utcache.c /* Local cache interfaces */ 3654151937Sjkim utilities/utmutex.c /* Local mutex support */ 3655151937Sjkim utilities/utstate.c /* State object support */ 3656151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 3657151937Sjkim 3658193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3659193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3660193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3661193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3662193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3663193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3664193267Sjkimthe compiler options used during generation. 3665151937Sjkim 3666151937Sjkim Previous Release: 3667151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 3668151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 3669151937Sjkim Current Release: 3670151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 3671151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 3672151937Sjkim 3673151937Sjkim 3674151937Sjkim2) iASL Compiler/Disassembler: 3675151937Sjkim 3676193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 3677193267Sjkimobject within a Case() statement caused a compile time exception. The 3678193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 3679151937Sjkim 3680151937Sjkim---------------------------------------- 3681151937Sjkim17 June 2005. Summary of changes for version 20050617: 3682151937Sjkim 3683151937Sjkim1) ACPI CA Core Subsystem: 3684151937Sjkim 3685193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 3686193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 3687193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 3688193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 3689193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 3690193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 3691193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 3692151937Sjkim AcpiOsCreateCache 3693151937Sjkim AcpiOsDeleteCache 3694151937Sjkim AcpiOsPurgeCache 3695151937Sjkim AcpiOsAcquireObject 3696151937Sjkim AcpiOsReleaseObject 3697151937Sjkim 3698193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 3699193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 3700193267SjkimNote: the current execution state (interrupt handler or not) is no longer 3701193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 3702193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 3703151937SjkimStarikovskiy. 3704151937Sjkim 3705193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 3706193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 3707193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 3708193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 3709193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 3710193267Sjkimonly the RSDT. 3711151937Sjkim 3712193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 3713193267Sjkimstring where the resulting output string is of zero length. It now correctly 3714193267Sjkimreturns a valid, null terminated string object instead of a string object 3715193267Sjkimwith a null pointer. 3716151937Sjkim 3717193267SjkimFixed a problem with the control method argument handling to allow a store 3718193267Sjkimto an Arg object that already contains an object of type Device. The Device 3719193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 3720151937Sjkim 3721167802Sjkim 3722193267SjkimEnhanced the debugger Find command to emit object values in addition to the 3723193267Sjkimfound object pathnames. The output format is the same as the dump namespace 3724193267Sjkimcommand. 3725151937Sjkim 3726193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 3727193267Sjkimof any Named integer object in the namespace (Previously, only method locals 3728193267Sjkimand args could be set.) 3729151937Sjkim 3730193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3731193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3732193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3733193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3734193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3735193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3736193267Sjkimthe compiler options used during generation. 3737151937Sjkim 3738151937Sjkim Previous Release: 3739151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 3740151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 3741151937Sjkim Current Release: 3742151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 3743151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 3744151937Sjkim 3745151937Sjkim 3746151937Sjkim2) iASL Compiler/Disassembler: 3747151937Sjkim 3748193267SjkimFixed a regression in the disassembler where if/else/while constructs were 3749193267Sjkimoutput incorrectly. This problem was introduced in the previous release 3750193267Sjkim(20050526). This problem also affected the single-step disassembly in the 3751193267Sjkimdebugger. 3752151937Sjkim 3753193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 3754193267Sjkimrarely) produce compile errors. 3755151937Sjkim 3756193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 3757193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 3758193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 3759193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 3760193267Sjkimerrors. 3761151937Sjkim 3762151937Sjkim---------------------------------------- 3763151937Sjkim26 May 2005. Summary of changes for version 20050526: 3764151937Sjkim 3765151937Sjkim1) ACPI CA Core Subsystem: 3766151937Sjkim 3767193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 3768193267Sjkimthe module level (not within a control method.) These opcodes are executed 3769193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 3770193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 3771193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 3772193267SjkimThis eliminates the "Encountered executable code at module level" warning 3773193267Sjkimthat was previously generated upon detection of such code. 3774151937Sjkim 3775193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 3776193267Sjkiminadvertently be generated during the lookup of namespace objects in the 3777193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 3778193267Sjkimproblem could occur during the resolution of forward references to namespace 3779193267Sjkimobjects. 3780151937Sjkim 3781193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 3782193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 3783193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 3784193267Sjkimcase, improving mutex performance (and overall subsystem performance) 3785193267Sjkimconsiderably. 3786151937Sjkim 3787193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 3788193267Sjkimerror conditions and error handling control paths. These fixes were 3789193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 3790151937Sjkim 3791193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 3792193267Sjkimto prevent a fault in this error case. 3793151937Sjkim 3794193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3795193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3796193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3797193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3798193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3799193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3800193267Sjkimthe compiler options used during generation. 3801151937Sjkim 3802151937Sjkim Previous Release: 3803151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 3804151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 3805151937Sjkim Current Release: 3806151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 3807151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 3808151937Sjkim 3809151937Sjkim 3810151937Sjkim2) iASL Compiler/Disassembler: 3811151937Sjkim 3812193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 3813193267Sjkimthe module level (not within a control method.) These operators will be 3814193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 3815193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 3816193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 3817193267Sjkimcode. 3818151937Sjkim 3819193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 3820193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 3821193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 3822193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 3823151937Sjkim 3824193267SjkimAn error message is now generated for the Mutex and Method operators if the 3825193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 3826151937Sjkim 3827193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 3828193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 3829193267SjkimThe actual underlying implementation of method argument typechecking is 3830193267Sjkimstill under development, however. 3831151937Sjkim 3832151937Sjkim---------------------------------------- 3833151937Sjkim13 May 2005. Summary of changes for version 20050513: 3834151937Sjkim 3835151937Sjkim1) ACPI CA Core Subsystem: 3836151937Sjkim 3837193267SjkimImplemented support for PCI Express root bridges -- added support for device 3838193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 3839151937Sjkim 3840193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 3841193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 3842193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 3843193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 3844151937Sjkim 3845193267SjkimFixed a problem where string and buffer objects with "static" pointers 3846193267Sjkim(pointers to initialization data within an ACPI table) were not handled 3847193267Sjkimconsistently. The internal object copy operation now always copies the data 3848193267Sjkimto a newly allocated buffer, regardless of whether the source object is 3849193267Sjkimstatic or not. 3850151937Sjkim 3851193267SjkimFixed a problem with the FromBCD operator where an implicit result 3852193267Sjkimconversion was improperly performed while storing the result to the target 3853193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 3854193267Sjkimconversion should never be performed on the output. 3855151937Sjkim 3856193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 3857193267Sjkimnamed object did not always completely overwrite the existing object stored 3858193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 3859193267Sjkimbuffer. 3860151937Sjkim 3861193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 3862193267Sjkimstructs for consistency. 3863151937Sjkim 3864193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3865193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3866193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3867193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3868193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3869193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3870193267Sjkimthe compiler options used during generation. 3871151937Sjkim 3872151937Sjkim Previous Release: 3873151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 3874151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 3875151937Sjkim Current Release: (Same sizes) 3876151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 3877151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 3878151937Sjkim 3879151937Sjkim 3880151937Sjkim2) iASL Compiler/Disassembler: 3881151937Sjkim 3882193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 3883193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 3884193267Sjkimis truncated to 32 bits. 3885151937Sjkim 3886193267SjkimFixed a problem with large package objects: if the static length of the 3887193267Sjkimpackage is greater than 255, the "variable length package" opcode is 3888193267Sjkimemitted. Previously, this caused an error. This requires an update to the 3889193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 3890193267Sjkim255 elements are not allowed. 3891151937Sjkim 3892193267SjkimThe disassembler now correctly handles variable length packages and packages 3893193267Sjkimlarger than 255 elements. 3894151937Sjkim 3895151937Sjkim---------------------------------------- 3896151937Sjkim08 April 2005. Summary of changes for version 20050408: 3897151937Sjkim 3898151937Sjkim1) ACPI CA Core Subsystem: 3899151937Sjkim 3900193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 3901193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 3902193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 3903151937Sjkim 3904193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 3905193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 3906193267Sjkimlibraries. All references to the C library strupr function have been removed 3907193267Sjkimfrom the headers. 3908151937Sjkim 3909193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 3910193267Sjkimthe static attribute have been moved from the headers to the owning C file. 3911151937Sjkim 3912193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 3913193267Sjkimutility). This option allows the utility to extract individual ACPI tables 3914193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 3915193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 3916193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 3917193267Sjkimthe Linux/Unix environment (but should be soon). 3918193267Sjkim 3919193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 3920193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 3921193267SjkimAcpiDmp. 3922151937Sjkim 3923193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3924193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3925193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3926193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3927193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3928193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3929193267Sjkimthe compiler options used during generation. 3930151937Sjkim 3931151937Sjkim Previous Release: 3932151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 3933151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 3934151937Sjkim Current Release: 3935151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 3936151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 3937151937Sjkim 3938151937Sjkim 3939151937Sjkim2) iASL Compiler/Disassembler: 3940151937Sjkim 3941193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 3942193267SjkimACPI table header within the input file is not longer than the actual input 3943193267Sjkimfile size. This indicates some kind of file or table corruption. 3944151937Sjkim 3945151937Sjkim---------------------------------------- 3946151937Sjkim29 March 2005. Summary of changes for version 20050329: 3947151937Sjkim 3948151937Sjkim1) ACPI CA Core Subsystem: 3949151937Sjkim 3950193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 3951193267Sjkimlength zero (A CreateField with a length operand of zero.) 3952151937Sjkim 3953193267SjkimThe interpreter now issues a warning whenever executable code at the module 3954193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 3955193267Sjkimprevalence of this type of code. 3956151937Sjkim 3957193267SjkimImplemented support for references to named objects (other than control 3958193267Sjkimmethods) within package objects. 3959151937Sjkim 3960193267SjkimEnhanced package object output for the debug object. Package objects are now 3961193267Sjkimcompletely dumped, showing all elements. 3962151937Sjkim 3963193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 3964193267Sjkimnow be written to the debug object (for example, a device object can be 3965193267Sjkimwritten, and the type of the object will be displayed.) 3966151937Sjkim 3967193267SjkimThe "static" qualifier has been added to all local functions across both the 3968193267Sjkimcore subsystem and the iASL compiler. 3969151937Sjkim 3970193267SjkimThe number of "long" lines (> 80 chars) within the source has been 3971193267Sjkimsignificantly reduced, by about 1/3. 3972151937Sjkim 3973193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 3974193267Sjkimprototyped (even static functions) and the formatting is consistent. 3975151937Sjkim 3976151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 3977151937Sjkim 3978151937SjkimRemoved several obsolete functions that were no longer used. 3979151937Sjkim 3980193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 3981193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 3982193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 3983193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 3984193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 3985193267Sjkimthat these values will vary depending on the efficiency of the compiler and 3986193267Sjkimthe compiler options used during generation. 3987151937Sjkim 3988151937Sjkim Previous Release: 3989151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 3990151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 3991151937Sjkim Current Release: 3992151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 3993151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 3994151937Sjkim 3995151937Sjkim 3996167802Sjkim 3997151937Sjkim2) iASL Compiler/Disassembler: 3998151937Sjkim 3999193267SjkimFixed a problem with the resource descriptor generation/support. For the 4000193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 4001193267Sjkimboth must be not present - can't have one without the other. 4002151937Sjkim 4003193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 4004193267Sjkimoccurred during the compilation. 4005151937Sjkim 4006151937Sjkim 4007151937Sjkim---------------------------------------- 4008151937Sjkim09 March 2005. Summary of changes for version 20050309: 4009151937Sjkim 4010151937Sjkim1) ACPI CA Core Subsystem: 4011151937Sjkim 4012193267SjkimThe string-to-buffer implicit conversion code has been modified again after 4013193267Sjkima change to the ACPI specification. In order to match the behavior of the 4014193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 4015193267Sjkimthe source string is smaller than an existing target buffer. This change 4016193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 4017151937SjkimAE_AML_BUFFER_LIMIT issues. 4018151937Sjkim 4019193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 4020193267Sjkimthe general case. Rather than attempt to determine when a method is about to 4021193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 4022193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 4023193267Sjkimthere will always be a saved implicit return value. This feature is only 4024193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 4025193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 4026151937Sjkim 4027193267SjkimImplemented implicit conversion support for the predicate (operand) of the 4028193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 4029193267Sjkimconverted to Integers. 4030151937Sjkim 4031193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 4032193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 4033193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 4034193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 4035193267Sjkimwith the first character as the most significant digit, and ending with the 4036193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 4037193267Sjkimnon-hex character terminates the conversion and this is the code that was 4038193267Sjkimchanged. 4039151937Sjkim 4040193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 4041193267Sjkimon an Index of a Package which pointed to a null package element. The 4042193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 4043151937Sjkim 4044193267SjkimFixed a problem where the While operator used excessive memory by not 4045193267Sjkimproperly popping the result stack during execution. There was no memory leak 4046193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 4047151937Sjkim 4048193267SjkimFixed a problem where references to control methods within Package objects 4049193267Sjkimcaused the method to be invoked, instead of producing a reference object 4050193267Sjkimpointing to the method. 4051151937Sjkim 4052193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 4053193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 4054193267SjkimStarikovskiy.) 4055151937Sjkim 4056193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4057193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4058193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4059193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4060193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4061193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4062193267Sjkimthe compiler options used during generation. 4063151937Sjkim 4064151937Sjkim Previous Release: 4065151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4066151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4067151937Sjkim Current Release: 4068151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4069151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4070151937Sjkim 4071151937Sjkim 4072151937Sjkim2) iASL Compiler/Disassembler: 4073151937Sjkim 4074193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 4075193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 4076193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 4077193267Sjkimupdate has been written for this case. 4078151937Sjkim 4079193267SjkimFor tables other than the DSDT, namepath optimization is automatically 4080193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 4081193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 4082151937Sjkim 4083193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 4084193267Sjkiminadvertently omitted from the ACPI specification, and will require an 4085193267Sjkimupdate to the spec. 4086151937Sjkim 4087193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 4088193267Sjkimwas made because some vendors place non-ascii characters within comments. 4089193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 4090193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 4091151937Sjkim 4092193267SjkimFixed a problem with the CondRefOf operator where the compiler was 4093193267Sjkiminappropriately checking for the existence of the target. Since the point of 4094193267Sjkimthe operator is to check for the existence of the target at run-time, the 4095193267Sjkimcompiler no longer checks for the target existence. 4096151937Sjkim 4097193267SjkimFixed a problem where errors generated from the internal AML interpreter 4098193267Sjkimduring constant folding were not handled properly, causing a fault. 4099151937Sjkim 4100193267SjkimFixed a problem with overly aggressive range checking for the Stall 4101193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 4102193267Sjkimtype Integer. All other operand types cannot be statically checked. 4103151937Sjkim 4104193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 4105193267Sjkimand ObjectType operators were not treated properly. They are now treated as 4106193267Sjkimactual references, not method invocations. 4107151937Sjkim 4108193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 4109193267Sjkima number of releases ago. 4110151937Sjkim 4111193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 4112193267SjkimThe compiler now cleanly reports and recovers from errors in the field 4113193267Sjkimcomponent (FieldUnit) list. 4114151937Sjkim 4115193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 4116193267SjkimTRS and TTP were not always handled correctly. 4117151937Sjkim 4118151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 4119151937Sjkim 4120151937Sjkim---------------------------------------- 4121151937Sjkim28 February 2005. Summary of changes for version 20050228: 4122151937Sjkim 4123151937Sjkim1) ACPI CA Core Subsystem: 4124151937Sjkim 4125193267SjkimFixed a problem where the result of an Index() operator (an object 4126193267Sjkimreference) must increment the reference count on the target object for the 4127193267Sjkimlife of the object reference. 4128151937Sjkim 4129193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 4130193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 4131193267Sjkimresource descriptors. 4132151937Sjkim 4133193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 4134193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 4135193267Sjkimabove. 4136151937Sjkim 4137151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 4138151937Sjkim 4139193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 4140193267Sjkimstatus/enable registers. 4141151937Sjkim 4142193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 4143193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 4144151937Sjkim 4145151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 4146151937Sjkim 4147193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 4148193267Sjkimat runtime. 4149151937Sjkim 4150193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4151193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4152193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4153193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4154193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4155193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4156193267Sjkimthe compiler options used during generation. 4157151937Sjkim 4158151937Sjkim Previous Release: 4159151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4160151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4161151937Sjkim Current Release: 4162151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4163151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4164151937Sjkim 4165151937Sjkim 4166151937Sjkim2) iASL Compiler/Disassembler: 4167151937Sjkim 4168193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 4169193267Sjkimstrings less than two characters long. 4170151937Sjkim 4171193267SjkimFixed a problem with constant folding where the result of the Index() 4172193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 4173193267Sjkima type3 opcode and this will require an update to the ACPI specification. 4174151937Sjkim 4175193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 4176193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 4177193267Sjkimthe disassembly of the resource descriptor. 4178151937Sjkim 4179151937Sjkim 4180151937Sjkim ---------------------------------------- 4181151937Sjkim11 February 2005. Summary of changes for version 20050211: 4182151937Sjkim 4183151937Sjkim1) ACPI CA Core Subsystem: 4184151937Sjkim 4185193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 4186193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 4187193267Sjkimof just type integer. Package elements are implicitly converted to the type 4188193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 4189193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 4190193267Sjkimerrata change to the ACPI specification as this support was intended for 4191193267SjkimACPI 3.0, but was inadvertently omitted. 4192151937Sjkim 4193193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 4194193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 4195193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 4196193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 4197193267Sjkimspec.) The problem was introduced when code was added to truncate the 4198193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 4199151937Sjkim 4200193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 4201193267Sjkimwould get confused if two such operators were used as operands to an ASL 4202193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 4203193267Sjkimstack was not being popped after the execution of these operators, resulting 4204193267Sjkimin an AE_NO_RETURN_VALUE exception. 4205151937Sjkim 4206193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 4207193267Sjkimreference object returned from Index was inadvertently resolved to an actual 4208193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 4209193267SjkimStore() was modified to restrict the object types that can be used as the 4210151937Sjkimsource operand (to match the ACPI specification.) 4211151937Sjkim 4212193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 4213151937Sjkim 4214193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 4215151937Sjkim 4216193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 4217151937Sjkim 4218193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4219193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4220193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4221193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4222193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4223193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4224193267Sjkimthe compiler options used during generation. 4225151937Sjkim 4226151937Sjkim Previous Release: 4227151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4228151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4229151937Sjkim Current Release: 4230151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4231151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4232151937Sjkim 4233151937Sjkim 4234151937Sjkim2) iASL Compiler/Disassembler: 4235151937Sjkim 4236193267SjkimFixed a code generation problem in the constant folding optimization code 4237193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 4238193267Sjkimobject (i.e., a reduced type 5 opcode.) 4239151937Sjkim 4240193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 4241193267Sjkimincorrect return type in the internal opcode information table. 4242151937Sjkim 4243151937Sjkim---------------------------------------- 4244151937Sjkim25 January 2005. Summary of changes for version 20050125: 4245151937Sjkim 4246151937Sjkim1) ACPI CA Core Subsystem: 4247151937Sjkim 4248193267SjkimFixed a recently introduced problem with the Global Lock where the 4249193267Sjkimunderlying semaphore was not created. This problem was introduced in 4250193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 4251193267SjkimAcquire() operation on _GL. 4252151937Sjkim 4253193267SjkimThe local object cache is now optional, and is disabled by default. Both 4254193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 4255193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 4256193267Sjkimto enable the local cache. 4257151937Sjkim 4258193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 4259193267Sjkimoptional "implicit return" support where an error was returned if no return 4260193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 4261193267Sjkimin this case and the implicitly returned object is deleted. 4262193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 4263193267Sjkimmethods such as _STA and _INI where the return type is known up front. 4264151937Sjkim 4265193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 4266193267Sjkiman error if an attempt is made to convert a null string, a string of only 4267193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 4268193267Sjkimand explicit conversion via the ToInteger() operator. 4269151937Sjkim 4270193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 4271193267Sjkimnot needed for normal operation and should increase the performance of the 4272193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 4273193267Sjkimagain. 4274151937Sjkim 4275193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 4276193267Sjkimthe first time. 4277151937Sjkim 4278193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4279193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4280193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4281193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4282193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4283193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4284193267Sjkimthe compiler options used during generation. 4285151937Sjkim 4286151937Sjkim Previous Release: 4287151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4288151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4289151937Sjkim Current Release: 4290151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4291151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4292151937Sjkim 4293151937Sjkim2) iASL Compiler/Disassembler: 4294151937Sjkim 4295193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 4296193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 4297193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 4298193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 4299193267Sjkimwarning. 4300151937Sjkim 4301193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 4302193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 4303193267Sjkimbuffers and strings. 4304151937Sjkim 4305193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 4306193267Sjkimthe switch value as the first operand, not the second. The case value is now 4307193267Sjkimthe second operand, and this allows the case value to be implicitly 4308193267Sjkimconverted to the type of the switch value, not the other way around. 4309151937Sjkim 4310193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 4311193267Sjkimthe control method, not at the global level. This means that there are now 4312193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 4313193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 4314151937Sjkim 4315151937Sjkim---------------------------------------- 4316151937Sjkim14 January 2005. Summary of changes for version 20050114: 4317151937Sjkim 4318193267SjkimAdded 2005 copyright to all module headers. This affects every module in 4319193267Sjkimthe core subsystem, iASL compiler, and the utilities. 4320151937Sjkim 4321151937Sjkim1) ACPI CA Core Subsystem: 4322151937Sjkim 4323193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 4324193267Sjkimnull terminator was not included in the buffer after conversion, but there 4325193267Sjkimis existing ASL that assumes the string null terminator is included. This is 4326193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 4327193267Sjkimintroduced in the previous version when the code was updated to correctly 4328193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 4329193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 4330193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 4331193267Sjkimoperator. 4332151937Sjkim 4333193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 4334193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 4335193267Sjkimas initialized. 4336151937Sjkim 4337167802Sjkim 4338193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 4339193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 4340193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 4341151937Sjkim 4342193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 4343193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 4344193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 4345193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 4346193267Sjkimnecessary, the original behavior can be restored by enabling the 4347151937SjkimEnableInterpreterSlack flag. 4348151937Sjkim 4349193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 4350193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 4351193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 4352193267Sjkimfor example. 4353151937Sjkim 4354193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 4355193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 4356193267Sjkimthe supported ACPI version (This is the function of the _REV method). 4357151937Sjkim 4358193267SjkimUpdated the _REV predefined method to return the currently supported version 4359193267Sjkimof ACPI, now 3. 4360151937Sjkim 4361151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 4362151937Sjkim 4363193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4364193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4365193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4366193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4367193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4368193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4369193267Sjkimthe compiler options used during generation. 4370151937Sjkim 4371151937Sjkim Previous Release: 4372151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4373151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 4374151937Sjkim Current Release: 4375151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4376151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4377151937Sjkim 4378151937Sjkim---------------------------------------- 4379151937Sjkim10 December 2004. Summary of changes for version 20041210: 4380151937Sjkim 4381193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 4382193267SjkimACPI CA core subsystem. 4383151937Sjkim 4384151937Sjkim1) ACPI CA Core Subsystem: 4385151937Sjkim 4386193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 4387193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 4388193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 4389151937Sjkim 4390193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 4391193267Sjkimstring to be produced. 4392151937Sjkim 4393193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 4394193267Sjkimroutine where the length of the resulting buffer was not truncated to the 4395193267Sjkimnew size (if the target buffer already existed). 4396151937Sjkim 4397193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4398193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4399193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4400193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4401193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4402193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4403193267Sjkimthe compiler options used during generation. 4404151937Sjkim 4405151937Sjkim Previous Release: 4406151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4407151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 4408151937Sjkim Current Release: 4409151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4410151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 4411151937Sjkim 4412151937Sjkim 4413151937Sjkim2) iASL Compiler/Disassembler: 4414151937Sjkim 4415193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 4416193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 4417193267SjkimIncludes support in the disassembler. 4418151937Sjkim 4419193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 4420193267SjkimAccessSize. 4421151937Sjkim 4422193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 4423193267Sjkimreferencing bit 0 instead of bit 1. 4424151937Sjkim 4425193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 4426151937Sjkim 4427193267SjkimFixed a problem with the predefined resource descriptor names where 4428193267Sjkimincorrect AML code was generated if the offset within the resource buffer 4429193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 4430193267Sjkimbut did not update the surrounding package lengths. 4431151937Sjkim 4432193267SjkimChanges to the Dma macro: All channels within the channel list must be in 4433193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 4434193267Sjkimoptional (default is BusMaster). 4435151937Sjkim 4436193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 4437151937Sjkim 4438193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 4439151937Sjkim 4440151937Sjkim---------------------------------------- 4441151937Sjkim03 December 2004. Summary of changes for version 20041203: 4442151937Sjkim 4443151937Sjkim1) ACPI CA Core Subsystem: 4444151937Sjkim 4445193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 4446193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 4447193267Sjkimconditions. 4448151937Sjkim 4449193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 4450193267Sjkimoperators where the input operand could be inadvertently deleted if no 4451193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 4452193267Sjkimobject.) 4453151937Sjkim 4454193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 4455193267Sjkimexception code was returned if the resulting string would be > 200 chars. 4456193267SjkimAE_STRING_LIMIT is now returned. 4457151937Sjkim 4458193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 4459193267Sjkimreturned, even if the operation failed. 4460151937Sjkim 4461193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 4462193267Sjkimsemaphores to be allocated. 4463151937Sjkim 4464193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4465193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4466193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4467193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4468193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4469193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4470193267Sjkimthe compiler options used during generation. 4471151937Sjkim 4472151937Sjkim Previous Release: 4473151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4474151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4475151937Sjkim Current Release: 4476151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4477151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 4478151937Sjkim 4479151937Sjkim 4480151937Sjkim2) iASL Compiler/Disassembler: 4481151937Sjkim 4482193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 4483193267Sjkimrecently introduced in 20041119. 4484151937Sjkim 4485193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 4486193267Sjkimbyte was inadvertently set to zero. 4487151937Sjkim 4488151937Sjkim---------------------------------------- 4489138287Smarks19 November 2004. Summary of changes for version 20041119: 4490138287Smarks 4491138287Smarks1) ACPI CA Core Subsystem: 4492138287Smarks 4493193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 4494193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 4495193267Sjkimbuffers and strings to integers. 4496138287Smarks 4497193267SjkimImplemented support to store a value to an Index() on a String object. This 4498193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 4499138287Smarks 4500193267SjkimImplemented new behavior for storing objects to individual package elements 4501193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 4502193267Sjkimconversion rules if an object was already present at the index. The new 4503193267Sjkimbehavior is to simply delete any existing object and directly store the new 4504193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 4505193267SjkimACPI implementations behave in this manner. (This is the root of the 4506193267SjkimAE_BAD_HEX_CONSTANT issue.) 4507138287Smarks 4508193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 4509193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 4510193267SjkimRSDP signature is found with a valid checksum. 4511138287Smarks 4512193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4513193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4514193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4515193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4516193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4517193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4518193267Sjkimthe compiler options used during generation. 4519138287Smarks 4520151937Sjkim Previous Release: 4521151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4522151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4523151937Sjkim Current Release: 4524151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4525151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4526138287Smarks 4527138287Smarks 4528138287Smarks2) iASL Compiler/Disassembler: 4529138287Smarks 4530138287SmarksFixed a missing semicolon in the aslcompiler.y file. 4531138287Smarks 4532138287Smarks---------------------------------------- 4533138287Smarks05 November 2004. Summary of changes for version 20041105: 4534138287Smarks 4535138287Smarks1) ACPI CA Core Subsystem: 4536138287Smarks 4537193267SjkimImplemented support for FADT revision 2. This was an interim table (between 4538193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 4539138287Smarks 4540193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 4541193267Sjkimvariables in a control method. The variables are initialized to an Integer 4542193267Sjkimobject with a value of zero. This support is enabled by setting the 4543193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 4544138287Smarks 4545193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 4546193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 4547193267Sjkimdepending on the parent table revision). 4548138287Smarks 4549193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 4550193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 4551193267Sjkimreturn values for some objects. 4552138287Smarks 4553138287SmarksFixed some possible memory leaks during exceptional conditions. 4554138287Smarks 4555193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4556193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4557193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4558193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4559193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4560193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4561193267Sjkimthe compiler options used during generation. 4562138287Smarks 4563138287Smarks Previous Release: 4564138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 4565138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 4566138287Smarks Current Release: 4567138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 4568138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 4569138287Smarks 4570138287Smarks 4571138287Smarks2) iASL Compiler/Disassembler: 4572138287Smarks 4573138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 4574138287Smarks 4575193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 4576193267Sjkimsupport for semicolons. 4577138287Smarks 4578138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 4579138287Smarks 4580193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 4581193267Sjkimemitted properly if the target of the scope was in another table. 4582138287Smarks 4583138287Smarks---------------------------------------- 4584138287Smarks15 October 2004. Summary of changes for version 20041015: 4585138287Smarks 4586193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 4587193267Sjkimevaluation to test/verify the following areas. Other suggestions are 4588193267Sjkimwelcome. This will result in an increase in the frequency of releases and 4589193267Sjkimthe number of bug fixes in the next few months. 4590138287Smarks - Functional tests for all ASL/AML operators 4591138287Smarks - All implicit/explicit type conversions 4592138287Smarks - Bit fields and operation regions 4593138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 4594138287Smarks - Exceptional conditions, both compiler and interpreter 4595138287Smarks - Dynamic object deletion and memory leaks 4596138287Smarks - ACPI 3.0 support when implemented 4597138287Smarks - External interfaces to the ACPI subsystem 4598138287Smarks 4599138287Smarks 4600138287Smarks1) ACPI CA Core Subsystem: 4601138287Smarks 4602193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 4603193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 4604193267Sjkimfield within the non-aligned ACPI generic address structure. 4605138287Smarks 4606193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 4607193267Sjkimoperand resolution could result in the inadvertent modification of the 4608193267Sjkimoriginal integer when the integer is passed into another method as an 4609193267Sjkimargument and the arg is then incremented/decremented. 4610138287Smarks 4611193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 4612193267SjkimBCD number were truncated during conversion. 4613138287Smarks 4614193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 4615193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 4616193267Sjkimobject. 4617138287Smarks 4618193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 4619193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 4620193267Sjkimobjects. 4621138287Smarks 4622193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 4623193267Sjkimspecification) during the Concatenate operator with two string operands. 4624138287Smarks 4625193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4626193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4627193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4628193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4629193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4630193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4631193267Sjkimthe compiler options used during generation. 4632138287Smarks 4633138287Smarks Previous Release: 4634138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 4635138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 4636138287Smarks Current Release: 4637138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 4638138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 4639138287Smarks 4640138287Smarks 4641167802Sjkim 4642138287Smarks2) iASL Compiler/Disassembler: 4643138287Smarks 4644193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 4645193267Sjkim(returns 0 as per the ACPI specification). 4646138287Smarks 4647193267SjkimFixed a problem where the compiler would fault if there was a syntax error 4648193267Sjkimin the FieldName of all of the various CreateXXXField operators. 4649138287Smarks 4650193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 4651193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 4652193267SjkimU is an uppercase letter and N is a hex digit. 4653138287Smarks 4654138287Smarks 4655138287Smarks---------------------------------------- 4656138287Smarks06 October 2004. Summary of changes for version 20041006: 4657138287Smarks 4658138287Smarks1) ACPI CA Core Subsystem: 4659138287Smarks 4660193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 4661193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 4662138287Smarks 4663193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 4664193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 4665193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 4666193267Sjkimout of the clock handling business, since the host OS (usually) performs 4667193267Sjkimthis function. 4668138287Smarks 4669193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 4670193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 4671193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 4672193267Sjkimare now used to extract the address to a local variable before use. 4673138287Smarks 4674193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 4675193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 4676193267Sjkim(prefixed with "0x"). 4677138287Smarks 4678193267SjkimFixed a problem where the string length in the string object created as a 4679193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 4680193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 4681193267Sjkimand ToHexString operators. 4682138287Smarks 4683193267SjkimFixed two problems in the ToString operator. If the length parameter was 4684193267Sjkimzero, an incorrect string object was created and the value of the input 4685193267Sjkimlength parameter was inadvertently changed from zero to Ones. 4686138287Smarks 4687193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 4688193267Sjkimresource macro was ignored. 4689138287Smarks 4690193267SjkimSimplified the interfaces to the internal division functions, reducing code 4691193267Sjkimsize and complexity. 4692138287Smarks 4693193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4694193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4695193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4696193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4697193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4698193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4699193267Sjkimthe compiler options used during generation. 4700138287Smarks 4701138287Smarks Previous Release: 4702138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 4703138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 4704138287Smarks Current Release: 4705138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 4706138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 4707138287Smarks 4708138287Smarks 4709138287Smarks2) iASL Compiler/Disassembler: 4710138287Smarks 4711138287SmarksImplemented support for the ACPI 3.0 Timer operator. 4712138287Smarks 4713193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 4714193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 4715193267Sjkimstatement to If...Else pairs. 4716138287Smarks 4717193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 4718193267Sjkimoperands). 4719138287Smarks 4720193267SjkimFixed a problem with code generation for the ElseIf operator where the 4721193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 4722193267Sjkimloss of some code. 4723138287Smarks 4724138287Smarks---------------------------------------- 4725138287Smarks22 September 2004. Summary of changes for version 20040922: 4726138287Smarks 4727138287Smarks1) ACPI CA Core Subsystem: 4728138287Smarks 4729193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 4730193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 4731193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 4732193267Sjkimthis operator also. 4733138287Smarks 4734193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 4735193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 4736193267Sjkimbuffer already exists. 4737138287Smarks 4738193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 4739193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 4740193267Sjkimrelated code considerably. This will require changes/updates to all OS 4741193267Sjkiminterface layers (OSLs.) 4742138287Smarks 4743193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 4744193267Sjkima system exception handler to be installed. This handler is invoked upon any 4745193267Sjkimrun-time exception that occurs during control method execution. 4746138287Smarks 4747193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 4748138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 4749138287Smarks 4750193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4751193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4752193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4753193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4754193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4755193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4756193267Sjkimthe compiler options used during generation. 4757138287Smarks 4758138287Smarks Previous Release: 4759138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 4760138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 4761138287Smarks Current Release: 4762138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 4763138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 4764138287Smarks 4765138287Smarks 4766138287Smarks2) iASL Compiler/Disassembler: 4767138287Smarks 4768193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 4769193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 4770193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 4771138287Smarks 4772193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 4773193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 4774193267Sjkimfile. 4775138287Smarks 4776193267SjkimImplemented the "-r" option to override the Revision in the table header. 4777193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 4778193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 4779193267Sjkim32-bit or 64-bit integers. 4780138287Smarks 4781138287Smarks 4782138287Smarks---------------------------------------- 4783138287Smarks27 August 2004. Summary of changes for version 20040827: 4784138287Smarks 4785138287Smarks1) ACPI CA Core Subsystem: 4786138287Smarks 4787193267Sjkim- Implemented support for implicit object conversion in the non-numeric 4788193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 4789193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 4790193267Sjkimthe second operand is implicitly converted on the fly to match the type of 4791193267Sjkimthe first operand. For example: 4792138287Smarks 4793138287Smarks LEqual (Source1, Source2) 4794138287Smarks 4795193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 4796193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 4797193267Sjkimimplicitly converted if necessary to match the type of Source1. 4798138287Smarks 4799193267Sjkim- Updated and corrected the behavior of the string conversion support. The 4800193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 4801193267Sjkimspecification) are as follows: 4802138287Smarks 4803193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 4804193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 4805193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 4806193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 4807193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 4808193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 4809193267Sjkim(0-FF) separated by spaces. 4810138287Smarks 4811138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 4812138287Smarks 4813193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 4814193267Sjkimone byte too short in the case of a node in the root scope. This could 4815193267Sjkimcause a fault during debug output. 4816138287Smarks 4817193267Sjkim- Code and Data Size: Current and previous core subsystem library sizes are 4818193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4819193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4820193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4821193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4822193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4823193267Sjkimthe compiler options used during generation. 4824138287Smarks 4825138287Smarks Previous Release: 4826138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 4827138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 4828138287Smarks Current Release: 4829138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 4830138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 4831138287Smarks 4832138287Smarks 4833138287Smarks2) iASL Compiler/Disassembler: 4834138287Smarks 4835138287Smarks- Fixed a Linux generation error. 4836138287Smarks 4837138287Smarks 4838138287Smarks---------------------------------------- 4839138287Smarks16 August 2004. Summary of changes for version 20040816: 4840138287Smarks 4841138287Smarks1) ACPI CA Core Subsystem: 4842138287Smarks 4843193267SjkimDesigned and implemented support within the AML interpreter for the so- 4844193267Sjkimcalled "implicit return". This support returns the result of the last ASL 4845193267Sjkimoperation within a control method, in the absence of an explicit Return() 4846193267Sjkimoperator. A few machines depend on this behavior, even though it is not 4847193267Sjkimexplicitly supported by the ASL language. It is optional support that can 4848193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 4849138287Smarks 4850193267SjkimRemoved support for the PCI_Config address space from the internal low level 4851193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 4852193267Sjkimsupport was not used internally, and would not work correctly anyway because 4853193267Sjkimthe PCI bus number and segment number were not supported. There are 4854193267Sjkimseparate interfaces for PCI configuration space access because of the unique 4855138287Smarksinterface. 4856138287Smarks 4857193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4858193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4859193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4860193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4861193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4862193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4863193267Sjkimthe compiler options used during generation. 4864138287Smarks 4865138287Smarks Previous Release: 4866138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 4867138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 4868138287Smarks Current Release: 4869138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 4870138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 4871138287Smarks 4872138287Smarks 4873138287Smarks2) iASL Compiler/Disassembler: 4874138287Smarks 4875193267SjkimFixed a problem where constants in ASL expressions at the root level (not 4876193267Sjkimwithin a control method) could be inadvertently truncated during code 4877193267Sjkimgeneration. This problem was introduced in the 20040715 release. 4878138287Smarks 4879138287Smarks 4880138287Smarks---------------------------------------- 4881138287Smarks15 July 2004. Summary of changes for version 20040715: 4882138287Smarks 4883138287Smarks1) ACPI CA Core Subsystem: 4884138287Smarks 4885193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 4886193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 4887193267Sjkimincrease flexibility of the interfaces. 4888138287Smarks 4889193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 4890193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 4891193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 4892193267Sjkimto C library "strcmp". 4893138287Smarks 4894193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 4895193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 4896193267Sjkimreduced from 168 bytes to 32 bytes. 4897138287Smarks 4898193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 4899193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 4900193267Sjkimconstructs. Default setting is FALSE. 4901138287Smarks 4902193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 4903193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 4904193267Sjkimregion definition if the field is within the region length rounded up to the 4905193267Sjkimnext access width boundary (a common coding error.) 4906138287Smarks 4907193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 4908193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 4909193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 4910138287Smarks 4911193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 4912193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 4913193267Sjkimcomplaining. 4914138287Smarks 4915193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4916193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4917193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4918193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4919193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4920193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4921193267Sjkimthe compiler options used during generation. 4922138287Smarks 4923138287Smarks Previous Release: 4924138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 4925138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 4926138287Smarks Current Release: 4927138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 4928138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 4929138287Smarks 4930138287Smarks 4931138287Smarks2) iASL Compiler/Disassembler: 4932138287Smarks 4933193267SjkimImplemented full support for Package objects within the Case() operator. 4934193267SjkimNote: The Break() operator is currently not supported within Case blocks 4935193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 4936193267Sjkim1.0 interpreters. 4937138287Smarks 4938167802Sjkim 4939193267SjkimFixed a problem where complex terms were not supported properly within the 4940193267SjkimSwitch() operator. 4941138287Smarks 4942193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 4943193267Sjkimform "_T_x". (Used in Switch/Case operators.) 4944138287Smarks 4945193267SjkimEliminated optimization messages for "_T_x" objects and small constants 4946193267Sjkimwithin the DefinitionBlock operator. 4947138287Smarks 4948138287Smarks 4949138287Smarks---------------------------------------- 4950138287Smarks15 June 2004. Summary of changes for version 20040615: 4951138287Smarks 4952138287Smarks1) ACPI CA Core Subsystem: 4953138287Smarks 4954193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 4955193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 4956193267SjkimLLessEqual. 4957138287Smarks 4958193267SjkimAll directory names in the entire source package are lower case, as they 4959193267Sjkimwere in earlier releases. 4960138287Smarks 4961193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 4962193267Sjkima single control method. 4963138287Smarks 4964193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4965193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4966193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4967193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4968193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4969193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4970193267Sjkimthe compiler options used during generation. 4971138287Smarks 4972138287Smarks Previous Release: 4973138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 4974138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 4975167802Sjkim 4976138287Smarks Current Release: 4977138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 4978138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 4979138287Smarks 4980138287Smarks 4981138287Smarks2) iASL Compiler/Disassembler: 4982138287Smarks 4983193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 4984193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 4985193267SjkimLLessEqual. 4986138287Smarks 4987193267SjkimAll directory names in the entire source package are lower case, as they 4988193267Sjkimwere in earlier releases. 4989138287Smarks 4990193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 4991193267Sjkimnot found. 4992138287Smarks 4993193267SjkimFixed an issue with the Windows version of the compiler where later versions 4994193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 4995193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 4996193267Sjkimd<nofilename> options. The compiler now looks for both strings as 4997193267Sjkimnecessary. 4998138287Smarks 4999193267SjkimFixed a problem with compiler namepath optimization where a namepath within 5000193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 5001193267Sjkimthe current scope path. 5002138287Smarks 5003138287Smarks---------------------------------------- 5004131440Smarks27 May 2004. Summary of changes for version 20040527: 5005131440Smarks 5006131440Smarks1) ACPI CA Core Subsystem: 5007131440Smarks 5008193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 5009193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 5010193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 5011193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 5012193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 5013131440Smarksany machines that place the RSDP in the EBDA, however. 5014131440Smarks 5015193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 5016193267Sjkimarguments. Obsolete code that was causing the problem was removed. 5017131440Smarks 5018193267SjkimFound and fixed a problem in the Field Support Code where data could be 5019193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 5020193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 5021193267Sjkimcalculation code into a common procedure. 5022131440Smarks 5023131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 5024131440Smarks 5025167802Sjkim 5026193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5027193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5028193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5029193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5030193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5031193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5032193267Sjkimthe compiler options used during generation. 5033131440Smarks 5034131440Smarks Previous Release: 5035131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5036131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5037131440Smarks Current Release: 5038131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5039131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5040131440Smarks 5041131440Smarks 5042131440Smarks2) iASL Compiler/Disassembler: 5043131440Smarks 5044193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 5045193267Sjkim64-bit constant. 5046131440Smarks 5047131440Smarks---------------------------------------- 5048129684Snjl14 May 2004. Summary of changes for version 20040514: 5049129684Snjl 5050129684Snjl1) ACPI CA Core Subsystem: 5051129684Snjl 5052193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 5053193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 5054129684Snjl 5055129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 5056129684Snjl 5057193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 5058193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 5059193267Sjkimthe new AcpiEv* calls as appropriate. 5060129684Snjl 5061193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 5062193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 5063193267Sjkimchanged by modifying the acconfig.h file. 5064129684Snjl 5065193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 5066193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 5067129684Snjl 5068193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 5069193267Sjkimspecification, but there is apparently ASL code in the field that has these 5070193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 5071129684Snjl 5072193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 5073129684Snjl 5074193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 5075129684Snjl 5076193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5077193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5078193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5079193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5080193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5081193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5082193267Sjkimthe compiler options used during generation. 5083129684Snjl 5084129684Snjl Previous Release: 5085129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5086129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5087129684Snjl Current Release: 5088129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5089129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5090129684Snjl 5091129684Snjl---------------------------------------- 5092129684Snjl27 April 2004. Summary of changes for version 20040427: 5093129684Snjl 5094129684Snjl1) ACPI CA Core Subsystem: 5095129684Snjl 5096193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 5097193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 5098193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 5099193267Sjkimdevices such as a control-method power button, control-method sleep button, 5100193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 5101193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 5102193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 5103193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 5104193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 5105193267Sjkimactually be hardware enabled. 5106129684Snjl 5107193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 5108193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 5109193267Sjkimespecially useful for the drivers for the button devices mentioned above. 5110129684Snjl 5111193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 5112193267Sjkimdefault operation region handlers are installed before GPEs are initialized 5113193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 5114193267Sjkimmethods attempt to access system memory or I/O space. 5115129684Snjl 5116193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 5117193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 5118193267Sjkimthus no longer depend on the hardware to maintain these bits. 5119129684Snjl 5120193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 5121193267Sjkimfor state S5. 5122129684Snjl 5123193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 5124193267Sjkimcurrent status. 5125129684Snjl 5126193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 5127193267Sjkimx = 0,1,2,3,4. 5128129684Snjl 5129193267SjkimFixed a problem where the physical address was incorrectly calculated when 5130193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 5131193267Sjkimloading from a Field object.) Also added check for minimum table length for 5132193267Sjkimthis case. 5133129684Snjl 5134193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 5135193267Sjkimmutex release. 5136129684Snjl 5137193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 5138129684Snjlconsistency with the other fields returned. 5139129684Snjl 5140193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 5141193267Sjkimstructure for each GPE in the system, so the size of this structure is 5142193267Sjkimimportant. 5143129684Snjl 5144193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 5145193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 5146193267Sjkimcopying the various method parameters over and over again. 5147129684Snjl 5148193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 5149193267Sjkimonly if dispatching an operation region request to a user-installed handler. 5150193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 5151193267Sjkimsystem memory or I/O handlers) 5152129684Snjl 5153129684Snjl 5154193267SjkimNotes for updating drivers for the new GPE support. The following changes 5155193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 5156193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 5157129684Snjl 5158193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 5159193267Sjkimexplicitly call AcpiEnableGpe. 5160193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 5161193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 5162193267Sjkimthe GPE if it is currently enabled. 5163129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 5164129684Snjl 5165129684SnjlSpecific drivers that must be changed: 5166129684Snjl1) EC driver: 5167193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 5168129684SnjlAeGpeHandler, NULL); 5169129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 5170129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 5171129684Snjl 5172129684Snjl2) Button Drivers (Power, Lid, Sleep): 5173129684SnjlRun _PRW method under parent device 5174129684SnjlIf _PRW exists: /* This is a control-method button */ 5175129684Snjl Extract GPE number and possibly GpeDevice 5176129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 5177129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 5178129684Snjl 5179193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 5180193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 5181193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 5182193267Sjkimto allow the user to pick the wake devices. 5183129684Snjl 5184129684Snjl 5185193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5186193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5187193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5188193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5189193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5190193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5191193267Sjkimthe compiler options used during generation. 5192129684Snjl 5193129684Snjl Previous Release: 5194129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5195129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5196129684Snjl Current Release: 5197167802Sjkim 5198129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5199129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5200129684Snjl 5201129684Snjl 5202129684Snjl 5203129684Snjl---------------------------------------- 5204128212Snjl02 April 2004. Summary of changes for version 20040402: 5205128212Snjl 5206128212Snjl1) ACPI CA Core Subsystem: 5207128212Snjl 5208193267SjkimFixed an interpreter problem where an indirect store through an ArgX 5209193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 5210193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 5211193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 5212193267Sjkimstored directly to the target". The new behavior is to disable implicit 5213193267Sjkimconversion during ALL stores to an ArgX. 5214128212Snjl 5215193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 5216193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 5217193267Sjkimfailure of any single _PRW. 5218128212Snjl 5219193267SjkimMoved the runtime configuration parameters from the global init procedure to 5220193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 5221193267Sjkimdefault values easily. 5222128212Snjl 5223193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5224193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5225193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5226193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5227193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5228193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5229193267Sjkimthe compiler options used during generation. 5230128212Snjl 5231128212Snjl Previous Release: 5232128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5233128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5234128212Snjl Current Release: 5235128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5236128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5237128212Snjl 5238128212Snjl 5239128212Snjl2) iASL Compiler/Disassembler: 5240128212Snjl 5241193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 5242193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 5243193267Sjkimplanned feature for future implementation. 5244128212Snjl 5245193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 5246193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 5247193267Sjkimincorrectly nested internal namespace to be constructed. 5248128212Snjl 5249193267SjkimAny warnings or errors that are emitted during disassembly are now commented 5250193267Sjkimout automatically so that the resulting file can be recompiled without any 5251193267Sjkimhand editing. 5252128212Snjl 5253128212Snjl---------------------------------------- 5254128212Snjl26 March 2004. Summary of changes for version 20040326: 5255128212Snjl 5256128212Snjl1) ACPI CA Core Subsystem: 5257128212Snjl 5258193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 5259193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 5260193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 5261193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 5262193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 5263193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 5264128212Snjlsystems. 5265128212Snjl 5266193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 5267193267SjkimALL GPEs at runtime) via a runtime flag. 5268128212Snjl 5269193267SjkimFixed a problem where aliased control methods could not access objects 5270193267Sjkimproperly. The proper scope within the namespace was not initialized 5271193267Sjkim(transferred to the target of the aliased method) before executing the 5272193267Sjkimtarget method. 5273128212Snjl 5274193267SjkimFixed a potential race condition on internal object deletion on the return 5275193267Sjkimobject in AcpiEvaluateObject. 5276128212Snjl 5277193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 5278193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 5279193267Sjkimwide, 0x0F instead of 0x03.) 5280128212Snjl 5281193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 5282193267Sjkimfault in some cases. 5283128212Snjl 5284128212SnjlUpdated Notify() values for debug statements in evmisc.c 5285128212Snjl 5286193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 5287128212Snjl 5288193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5289193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5290193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5291193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5292193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5293193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5294193267Sjkimthe compiler options used during generation. 5295128212Snjl 5296128212Snjl Previous Release: 5297167802Sjkim 5298128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5299128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5300128212Snjl Current Release: 5301128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5302128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5303128212Snjl 5304128212Snjl---------------------------------------- 5305127175Snjl11 March 2004. Summary of changes for version 20040311: 5306127175Snjl 5307127175Snjl1) ACPI CA Core Subsystem: 5308127175Snjl 5309193267SjkimFixed a problem where errors occurring during the parse phase of control 5310193267Sjkimmethod execution did not abort cleanly. For example, objects created and 5311193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 5312193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 5313127175Snjl 5314193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 5315193267Sjkimif the method attempts to create namespace objects. (The root of the 5316193267SjkimAE_ALREADY_EXISTS problem.) 5317127175Snjl 5318193267SjkimImplemented support for the predefined _OSI "internal" control method. 5319193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 5320193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 5321193267SjkimThis feature will allow "other" operating systems to execute the fully 5322193267Sjkimtested, "Windows" code path through the ASL code 5323127175Snjl 5324193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 5325193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 5326127175Snjl 5327193267SjkimFixed two functions that were inappropriately declaring large objects on the 5328193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 5329193267Sjkimmethod execution considerably. 5330127175Snjl 5331193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 5332193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 5333127175Snjl 5334193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 5335193267Sjkimdefined on the machine. 5336127175Snjl 5337193267SjkimImplemented two runtime options: One to force all control method execution 5338193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 5339193267Sjkimif it causes problems on a given machine. 5340127175Snjl 5341193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5342193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5343193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5344193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5345193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5346193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5347193267Sjkimthe compiler options used during generation. 5348127175Snjl 5349127175Snjl Previous Release: 5350127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 5351127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 5352127175Snjl Current Release: 5353127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5354127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5355127175Snjl 5356127175Snjl2) iASL Compiler/Disassembler: 5357127175Snjl 5358193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 5359193267Sjkimfault. 5360127175Snjl 5361127175Snjl---------------------------------------- 5362126372Snjl20 February 2004. Summary of changes for version 20040220: 5363126372Snjl 5364167802Sjkim 5365126372Snjl1) ACPI CA Core Subsystem: 5366126372Snjl 5367193267SjkimImplemented execution of _SxD methods for Device objects in the 5368126372SnjlGetObjectInfo interface. 5369126372Snjl 5370126372SnjlFixed calls to _SST method to pass the correct arguments. 5371126372Snjl 5372126372SnjlAdded a call to _SST on wake to restore to "working" state. 5373126372Snjl 5374193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 5375126372Snjl 5376193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 5377193267Sjkimstructures to the beginning of the file. 5378126372Snjl 5379126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 5380126372Snjl 5381193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 5382193267Sjkimfixed events upon wake.) 5383126372Snjl 5384126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 5385126372Snjl 5386126372SnjlIntegrated latest acnetbsd.h file. 5387126372Snjl 5388126372Snjl---------------------------------------- 5389126372Snjl11 February 2004. Summary of changes for version 20040211: 5390126372Snjl 5391167802Sjkim 5392126372Snjl1) ACPI CA Core Subsystem: 5393126372Snjl 5394193267SjkimCompleted investigation and implementation of the call-by-reference 5395193267Sjkimmechanism for control method arguments. 5396126372Snjl 5397193267SjkimFixed a problem where a store of an object into an indexed package could 5398193267Sjkimfail if the store occurs within a different method than the method that 5399193267Sjkimcreated the package. 5400126372Snjl 5401193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 5402126372Snjl 5403193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 5404193267Sjkimobscure objects (e.g., Reference objects.) 5405126372Snjl 5406193267SjkimImproved the output of the Debug object to display buffer, package, and 5407193267Sjkimindex objects. 5408126372Snjl 5409193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 5410193267Sjkimthe expected result. 5411126372Snjl 5412193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 5413126372SnjlACPI_AML_INTERNAL exception. 5414126372Snjl 5415126372SnjlIntegrated latest version of acfreebsd.h 5416126372Snjl 5417126372Snjl---------------------------------------- 5418126372Snjl16 January 2004. Summary of changes for version 20040116: 5419126372Snjl 5420193267SjkimThe purpose of this release is primarily to update the copyright years in 5421193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 5422193267Sjkimfunctional changes, however. 5423126372Snjl 5424126372Snjl1) ACPI CA Core Subsystem: 5425126372Snjl 5426193267SjkimImproved error messages when there is a problem finding one or more of the 5427193267Sjkimrequired base ACPI tables 5428126372Snjl 5429126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 5430126372Snjl 5431126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 5432126372Snjl 5433126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 5434126372Snjl 5435126372Snjl2) iASL compiler 5436126372Snjl 5437193267SjkimFixed a problem introduced in December that disabled the correct disassembly 5438193267Sjkimof Resource Templates 5439126372Snjl 5440126372Snjl 5441126372Snjl---------------------------------------- 5442126372Snjl03 December 2003. Summary of changes for version 20031203: 5443126372Snjl 5444126372Snjl1) ACPI CA Core Subsystem: 5445126372Snjl 5446126372SnjlChanged the initialization of Operation Regions during subsystem 5447126372Snjlinit to perform two entire walks of the ACPI namespace; The first 5448126372Snjlto initialize the regions themselves, the second to execute the 5449126372Snjl_REG methods. This fixed some interdependencies across _REG 5450126372Snjlmethods found on some machines. 5451126372Snjl 5452126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 5453126372Snjlthe object reference count, and not create a new copy of the 5454126372Snjlobject if the Local1 is uninitialized. 5455126372Snjl 5456126372SnjlImplemented support for the _SST reserved method during sleep 5457126372Snjltransitions. 5458126372Snjl 5459126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 5460126372Snjlwaking up, this is apparently required by some machines. 5461126372Snjl 5462193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 5463126372Snjl 5464126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 5465126372Snjlpointer arithmetic advanced a string pointer too far. 5466126372Snjl 5467126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 5468126372Snjlcould be returned if the requested table has not been loaded. 5469126372Snjl 5470193267SjkimWithin the support for IRQ resources, restructured the handling of 5471126372Snjlthe active and edge/level bits. 5472126372Snjl 5473126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 5474126372Snjlleaked under certain error conditions. 5475126372Snjl 5476126372SnjlImproved error messages for the cases where the ACPI mode could 5477126372Snjlnot be entered. 5478126372Snjl 5479126372SnjlCode and Data Size: Current and previous core subsystem library 5480126372Snjlsizes are shown below. These are the code and data sizes for the 5481126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5482126372Snjlthese values do not include any ACPI driver or OSPM code. The 5483126372Snjldebug version of the code includes the debug output trace 5484126372Snjlmechanism and has a much larger code and data size. Note that 5485193267Sjkimthese values will vary depending on the efficiency of the compiler 5486126372Snjland the compiler options used during generation. 5487126372Snjl 5488126372Snjl Previous Release (20031029): 5489126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 5490126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 5491126372Snjl Current Release: 5492126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 5493126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 5494126372Snjl 5495126372Snjl2) iASL Compiler/Disassembler: 5496126372Snjl 5497126372SnjlImplemented a fix for the iASL disassembler where a bad index was 5498126372Snjlgenerated. This was most noticeable on 64-bit platforms 5499126372Snjl 5500126372Snjl 5501126372Snjl---------------------------------------- 5502126372Snjl29 October 2003. Summary of changes for version 20031029: 5503126372Snjl 5504126372Snjl1) ACPI CA Core Subsystem: 5505126372Snjl 5506167802Sjkim 5507126372SnjlFixed a problem where a level-triggered GPE with an associated 5508126372Snjl_Lxx control method was incorrectly cleared twice. 5509126372Snjl 5510126372SnjlFixed a problem with the Field support code where an access can 5511126372Snjloccur beyond the end-of-region if the field is non-aligned but 5512126372Snjlextends to the very end of the parent region (resulted in an 5513126372SnjlAE_AML_REGION_LIMIT exception.) 5514126372Snjl 5515126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 5516193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 5517126372Snjlthe PM1 registers were not being initialized properly. 5518126372Snjl 5519126372SnjlImplemented support for executing _STA and _INI methods for 5520126372SnjlProcessor objects. Although this is currently not part of the 5521193267SjkimACPI specification, there is existing ASL code that depends on the 5522126372Snjlinit-time execution of these methods. 5523126372Snjl 5524126372SnjlImplemented and deployed a GetDescriptorName function to decode 5525126372Snjlthe various types of internal descriptors. Guards against null 5526126372Snjldescriptors during debug output also. 5527126372Snjl 5528126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 5529193267Sjkimcharacter namespace node name. This function simplifies the debug 5530193267Sjkimand error output, as well as guarding against null pointers during 5531126372Snjloutput. 5532126372Snjl 5533126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 5534126372Snjlsimplify the debug and error output of 64-bit integers. This 5535126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 5536126372Snjlintegers. 5537126372Snjl 5538126372SnjlUpdated the implementation of the Stall() operator to only call 5539126372SnjlAcpiOsStall(), and also return an error if the operand is larger 5540126372Snjlthan 255. This preserves the required behavior of not 5541126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 5542126372Snjlcalled for "long stalls". 5543126372Snjl 5544126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 5545126372Snjlinitialized are now treated as NOOPs. 5546126372Snjl 5547126372SnjlCleaned up a handful of warnings during 64-bit generation. 5548126372Snjl 5549126372SnjlFixed a reported error where and incorrect GPE number was passed 5550126372Snjlto the GPE dispatch handler. This value is only used for error 5551193267Sjkimoutput, however. Used this opportunity to clean up and streamline 5552126372Snjlthe GPE dispatch code. 5553126372Snjl 5554126372SnjlCode and Data Size: Current and previous core subsystem library 5555126372Snjlsizes are shown below. These are the code and data sizes for the 5556126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5557126372Snjlthese values do not include any ACPI driver or OSPM code. The 5558167802Sjkim 5559126372Snjldebug version of the code includes the debug output trace 5560126372Snjlmechanism and has a much larger code and data size. Note that 5561193267Sjkimthese values will vary depending on the efficiency of the compiler 5562126372Snjland the compiler options used during generation. 5563126372Snjl 5564126372Snjl Previous Release (20031002): 5565126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 5566126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 5567126372Snjl Current Release: 5568126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 5569126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 5570126372Snjl 5571126372Snjl 5572126372Snjl2) iASL Compiler/Disassembler: 5573126372Snjl 5574193267SjkimUpdated the iASL compiler to return an error if the operand to the 5575126372SnjlStall() operator is larger than 255. 5576126372Snjl 5577126372Snjl 5578126372Snjl---------------------------------------- 5579126372Snjl02 October 2003. Summary of changes for version 20031002: 5580126372Snjl 5581126372Snjl 5582126372Snjl1) ACPI CA Core Subsystem: 5583126372Snjl 5584126372SnjlFixed a problem with Index Fields where the index was not 5585126372Snjlincremented for fields that require multiple writes to the 5586126372Snjlindex/data registers (Fields that are wider than the data 5587126372Snjlregister.) 5588126372Snjl 5589126372SnjlFixed a problem with all Field objects where a write could go 5590126372Snjlbeyond the end-of-field if the field was larger than the access 5591193267Sjkimgranularity and therefore required multiple writes to complete the 5592126372Snjlrequest. An extra write beyond the end of the field could happen 5593126372Snjlinadvertently. 5594126372Snjl 5595126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 5596126372Snjlwould incorrectly be returned if the width of the Data Register 5597126372Snjlwas larger than the specified field access width. 5598126372Snjl 5599126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 5600126372Snjloperation. Implemented full support for the "DdbHandle" object 5601126372Snjlthroughout the ACPI CA subsystem. 5602126372Snjl 5603126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 5604126372SnjlCA header files. Even though these tables are not directly 5605126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 5606126372Snjldevice drivers. 5607126372Snjl 5608126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 5609126372Snjllist. This included checks for minimum descriptor length, and 5610126372Snjlsupport for trailing NULL strings within descriptors that have 5611126372Snjloptional string elements. 5612126372Snjl 5613126372SnjlCode and Data Size: Current and previous core subsystem library 5614126372Snjlsizes are shown below. These are the code and data sizes for the 5615126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5616126372Snjlthese values do not include any ACPI driver or OSPM code. The 5617126372Snjldebug version of the code includes the debug output trace 5618126372Snjlmechanism and has a much larger code and data size. Note that 5619193267Sjkimthese values will vary depending on the efficiency of the compiler 5620126372Snjland the compiler options used during generation. 5621126372Snjl 5622126372Snjl Previous Release (20030918): 5623126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 5624126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 5625126372Snjl Current Release: 5626126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 5627126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 5628126372Snjl 5629126372Snjl 5630126372Snjl2) iASL Compiler: 5631126372Snjl 5632126372SnjlImplemented detection of non-ASCII characters within the input 5633126372Snjlsource ASL file. This catches attempts to compile binary (AML) 5634126372Snjlfiles early in the compile, with an informative error message. 5635126372Snjl 5636126372SnjlFixed a problem where the disassembler would fault if the output 5637193267Sjkimfilename could not be generated or if the output file could not be 5638126372Snjlopened. 5639126372Snjl 5640126372Snjl---------------------------------------- 5641126372Snjl18 September 2003. Summary of changes for version 20030918: 5642126372Snjl 5643126372Snjl 5644126372Snjl1) ACPI CA Core Subsystem: 5645126372Snjl 5646126372SnjlFound and fixed a longstanding problem with the late execution of 5647126372Snjlthe various deferred AML opcodes (such as Operation Regions, 5648126372SnjlBuffer Fields, Buffers, and Packages). If the name string 5649126372Snjlspecified for the name of the new object placed the object in a 5650126372Snjlscope other than the current scope, the initialization/execution 5651126372Snjlof the opcode failed. The solution to this problem was to 5652126372Snjlimplement a mechanism where the late execution of such opcodes 5653126372Snjldoes not attempt to lookup/create the name a second time in an 5654126372Snjlincorrect scope. This fixes the "region size computed 5655126372Snjlincorrectly" problem. 5656126372Snjl 5657193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 5658126372SnjlGlobal Lock AE_BAD_PARAMETER error. 5659126372Snjl 5660126372SnjlFixed several 64-bit issues with prototypes, casting and data 5661126372Snjltypes. 5662126372Snjl 5663126372SnjlRemoved duplicate prototype from acdisasm.h 5664126372Snjl 5665126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 5666126372Snjl 5667126372SnjlCode and Data Size: Current and previous core subsystem library 5668126372Snjlsizes are shown below. These are the code and data sizes for the 5669126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5670126372Snjlthese values do not include any ACPI driver or OSPM code. The 5671126372Snjldebug version of the code includes the debug output trace 5672126372Snjlmechanism and has a much larger code and data size. Note that 5673193267Sjkimthese values will vary depending on the efficiency of the compiler 5674126372Snjland the compiler options used during generation. 5675126372Snjl 5676126372Snjl Previous Release: 5677167802Sjkim 5678126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 5679126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 5680126372Snjl Current Release: 5681126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 5682126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 5683126372Snjl 5684126372Snjl 5685126372Snjl2) Linux: 5686126372Snjl 5687126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 5688126372Snjlcorrect sleep time in seconds. 5689126372Snjl 5690126372Snjl---------------------------------------- 5691126372Snjl14 July 2003. Summary of changes for version 20030619: 5692126372Snjl 5693126372Snjl1) ACPI CA Core Subsystem: 5694126372Snjl 5695126372SnjlParse SSDTs in order discovered, as opposed to reverse order 5696126372Snjl(Hrvoje Habjanic) 5697126372Snjl 5698126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 5699126372SnjlKlausner, 5700126372Snjl Nate Lawson) 5701126372Snjl 5702126372Snjl 5703126372Snjl2) Linux: 5704126372Snjl 5705126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 5706126372Snjl 5707126372Snjlproc function return value cleanups (Andi Kleen) 5708126372Snjl 5709126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 5710126372Snjl 5711126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 5712126372Snjl 5713126372Snjl 5714126372Snjl---------------------------------------- 5715117521Snjl19 June 2003. Summary of changes for version 20030619: 5716117521Snjl 5717117521Snjl1) ACPI CA Core Subsystem: 5718117521Snjl 5719193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 5720117521Snjl 5721117521SnjlDo not acquire a semaphore in the S5 shutdown path. 5722117521Snjl 5723117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 5724117521Snjl 5725117521SnjlFix sleep/stall code reversal. (Andi Kleen) 5726117521Snjl 5727117521SnjlRevert a change having to do with control method calling 5728117521Snjlsemantics. 5729117521Snjl 5730117521Snjl2) Linux: 5731117521Snjl 5732117521Snjlacpiphp update (Takayoshi Kochi) 5733117521Snjl 5734117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 5735117521Snjl 5736117521SnjlMention acpismp=force in config help 5737117521Snjl 5738117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 5739167802Sjkim 5740193267Sjkimcompatibility and also cleans up the code to a significant degree. 5741117521Snjl 5742117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 5743117521Snjl 5744117521Snjl---------------------------------------- 5745117521Snjl22 May 2003. Summary of changes for version 20030522: 5746117521Snjl 5747117521Snjl1) ACPI CA Core Subsystem: 5748117521Snjl 5749117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 5750117521Snjloccurred occasionally during _BST evaluation. This turned out to 5751117521Snjlbe an Owner ID allocation issue where a called method did not get 5752193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 5753193267SjkimID UINT16 would wraparound so that the ID would be the same as the 5754126372Snjlcaller's and the called method would delete the caller's 5755117521Snjlnamespace. 5756117521Snjl 5757117521SnjlImplemented extended error reporting for control methods that are 5758117521Snjlaborted due to a run-time exception. Output includes the exact 5759193267SjkimAML instruction that caused the method abort, a dump of the method 5760126372Snjllocals and arguments at the time of the abort, and a trace of all 5761126372Snjlnested control method calls. 5762117521Snjl 5763117521SnjlModified the interpreter to allow the creation of buffers of zero 5764117521Snjllength from the AML code. Implemented new code to ensure that no 5765117521Snjlattempt is made to actually allocate a memory buffer (of length 5766193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 5767126372Snjland length zero is created. A warning is no longer issued when 5768126372Snjlthe AML attempts to create a zero-length buffer. 5769117521Snjl 5770117521SnjlImplemented a workaround for the "leading asterisk issue" in 5771117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 5772117521Snjlasterisk is automatically removed if present in any HID, UID, or 5773117521SnjlCID strings. The iASL compiler will still flag this asterisk as 5774117521Snjlan error, however. 5775117521Snjl 5776193267SjkimImplemented full support for _CID methods that return a package of 5777193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 5778126372Snjlnow additionally returns a device _CID list if present. This 5779126372Snjlrequired a change to the external interface in order to pass an 5780126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 5781117521Snjlvariable length. 5782117521Snjl 5783117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 5784117521Snjlhandler initialization code did not know about this exception. 5785117521Snjl 5786117521SnjlCode and Data Size: Current and previous core subsystem library 5787117521Snjlsizes are shown below. These are the code and data sizes for the 5788117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 5789117521Snjlthese values do not include any ACPI driver or OSPM code. The 5790117521Snjldebug version of the code includes the debug output trace 5791117521Snjlmechanism and has a much larger code and data size. Note that 5792193267Sjkimthese values will vary depending on the efficiency of the compiler 5793126372Snjland the compiler options used during generation. 5794117521Snjl 5795117521Snjl Previous Release (20030509): 5796117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 5797117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 5798117521Snjl Current Release: 5799117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 5800117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 5801117521Snjl 5802117521Snjl 5803117521Snjl2) Linux: 5804117521Snjl 5805117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 5806193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 5807126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 5808117521SnjlJordet) 5809117521Snjl 5810117521SnjlToshiba driver update (John Belmonte) 5811117521Snjl 5812117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 5813117521SnjlMorton) 5814117521Snjl 5815117521Snjl 5816117521Snjl3) iASL Compiler: 5817117521Snjl 5818117521SnjlFixed a reported problem where multiple (nested) ElseIf() 5819117521Snjlstatements were not handled correctly by the compiler, resulting 5820117521Snjlin incorrect warnings and incorrect AML code. This was a problem 5821117521Snjlin both the ASL parser and the code generator. 5822117521Snjl 5823117521Snjl 5824117521Snjl4) Documentation: 5825117521Snjl 5826193267SjkimAdded changes to existing interfaces, new exception codes, and new 5827126372Snjltext concerning reference count object management versus garbage 5828126372Snjlcollection. 5829117521Snjl 5830117521Snjl---------------------------------------- 5831117521Snjl09 May 2003. Summary of changes for version 20030509. 5832117521Snjl 5833117521Snjl 5834117521Snjl1) ACPI CA Core Subsystem: 5835117521Snjl 5836117521SnjlChanged the subsystem initialization sequence to hold off 5837193267Sjkiminstallation of address space handlers until the hardware has been 5838193267Sjkiminitialized and the system has entered ACPI mode. This is because 5839126372Snjlthe installation of space handlers can cause _REG methods to be 5840193267Sjkimrun. Previously, the _REG methods could potentially be run before 5841126372SnjlACPI mode was enabled. 5842117521Snjl 5843193267SjkimFixed some memory leak issues related to address space handler and 5844126372Snjlnotify handler installation. There were some problems with the 5845126372Snjlreference count mechanism caused by the fact that the handler 5846117521Snjlobjects are shared across several namespace objects. 5847117521Snjl 5848117521SnjlFixed a reported problem where reference counts within the 5849117521Snjlnamespace were not properly updated when named objects created by 5850117521Snjlmethod execution were deleted. 5851117521Snjl 5852117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 5853117521Snjlissue during subsystem termination. Restructured the table data 5854117521Snjlstructures to simplify the linked lists and the related code. 5855117521Snjl 5856117521SnjlFixed a problem where the table ID associated with secondary 5857193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 5858126372Snjlcreated by those tables. This would only present a problem for 5859126372Snjltables that are unloaded at run-time, however. 5860117521Snjl 5861117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 5862117521Snjltype as the length parameter (instead of UINT32). 5863117521Snjl 5864117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 5865117521Snjlappears on various systems. This problem could happen when there 5866117521Snjlare multiple PCI_Config operation regions under a single PCI root 5867117521Snjlbus. This doesn't happen very frequently, but there are some 5868117521Snjlsystems that do this in the ASL. 5869117521Snjl 5870117521SnjlFixed a reported problem where the internal DeleteNode function 5871117521Snjlwas incorrectly handling the case where a namespace node was the 5872117521Snjlfirst in the parent's child list, and had additional peers (not 5873117521Snjlthe only child, but first in the list of children.) 5874117521Snjl 5875193267SjkimCode and Data Size: Current core subsystem library sizes are shown 5876126372Snjlbelow. These are the code and data sizes for the acpica.lib 5877126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 5878126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 5879126372Snjlversion of the code includes the debug output trace mechanism and 5880193267Sjkimhas a much larger code and data size. Note that these values will 5881126372Snjlvary depending on the efficiency of the compiler and the compiler 5882126372Snjloptions used during generation. 5883117521Snjl 5884117521Snjl Previous Release 5885117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 5886117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 5887117521Snjl Current Release: 5888117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 5889117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 5890117521Snjl 5891117521Snjl 5892117521Snjl2) Linux: 5893117521Snjl 5894117521SnjlAllow ":" in OS override string (Ducrot Bruno) 5895117521Snjl 5896117521SnjlKobject fix (Greg KH) 5897117521Snjl 5898117521Snjl 5899117521Snjl3 iASL Compiler/Disassembler: 5900117521Snjl 5901117521SnjlFixed a problem in the generation of the C source code files (AML 5902117521Snjlis emitted in C source statements for BIOS inclusion) where the 5903193267SjkimAscii dump that appears within a C comment at the end of each line 5904126372Snjlcould cause a compile time error if the AML sequence happens to 5905126372Snjlhave an open comment or close comment sequence embedded. 5906117521Snjl 5907117521Snjl 5908117521Snjl---------------------------------------- 5909117521Snjl24 April 2003. Summary of changes for version 20030424. 5910117521Snjl 5911117521Snjl 5912117521Snjl1) ACPI CA Core Subsystem: 5913117521Snjl 5914117521SnjlSupport for big-endian systems has been implemented. Most of the 5915193267Sjkimsupport has been invisibly added behind big-endian versions of the 5916126372SnjlACPI_MOVE_* macros. 5917117521Snjl 5918117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 5919117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 5920117521Snjllow level hardware write routine. The offset parameter was 5921193267Sjkimactually eliminated from the low level read/write routines because 5922126372Snjlthey had become obsolete. 5923117521Snjl 5924117521SnjlFixed a problem where a handler object was deleted twice during 5925117521Snjlthe removal of a fixed event handler. 5926117521Snjl 5927117521Snjl 5928117521Snjl2) Linux: 5929117521Snjl 5930117521SnjlA fix for SMP systems with link devices was contributed by 5931167802Sjkim 5932117521SnjlCompaq's Dan Zink. 5933117521Snjl 5934117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 5935193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 5936126372Snjlreturn value from the ACPI CA core back to the OS.) 5937117521Snjl 5938117521Snjl 5939167802Sjkim 5940117521Snjl3) Documentation: 5941117521Snjl 5942117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 5943117521Snjlinterfaces and changes to existing interfaces. 5944117521Snjl 5945117521Snjl---------------------------------------- 5946117521Snjl28 March 2003. Summary of changes for version 20030328. 5947117521Snjl 5948117521Snjl1) ACPI CA Core Subsystem: 5949117521Snjl 5950117521SnjlThe GPE Block Device support has been completed. New interfaces 5951117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 5952117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 5953117521Snjlinto separate interfaces for Fixed Events and General Purpose 5954117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 5955117521Snjl 5956117521SnjlFixed a problem where the error message "Failed to acquire 5957117521Snjlsemaphore" would appear during operations on the embedded 5958117521Snjlcontroller (EC). 5959117521Snjl 5960193267SjkimCode and Data Size: Current core subsystem library sizes are shown 5961126372Snjlbelow. These are the code and data sizes for the acpica.lib 5962126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 5963126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 5964126372Snjlversion of the code includes the debug output trace mechanism and 5965193267Sjkimhas a much larger code and data size. Note that these values will 5966126372Snjlvary depending on the efficiency of the compiler and the compiler 5967126372Snjloptions used during generation. 5968117521Snjl 5969117521Snjl Previous Release 5970117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 5971117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 5972117521Snjl Current Release: 5973117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 5974117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 5975117521Snjl 5976117521Snjl 5977117521Snjl---------------------------------------- 5978114237Snjl28 February 2003. Summary of changes for version 20030228. 5979114237Snjl 5980114237Snjl 5981114237Snjl1) ACPI CA Core Subsystem: 5982114237Snjl 5983114237SnjlThe GPE handling and dispatch code has been completely overhauled 5984114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 5985114237SnjlThis affects internal data structures and code only; there should 5986114237Snjlbe no differences visible externally. One new file has been 5987114237Snjladded, evgpeblk.c 5988114237Snjl 5989114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 5990114237Snjlfields that are used to determine the GPE block lengths. The 5991114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 5992193267Sjkimstructures are ignored. This is per the ACPI specification but it 5993126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 5994193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 5995114237Snjl 5996114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 5997114237Snjlregister to look at the SCI_EN bit. On some machines, this read 5998114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 5999114237Snjlin fact be the cause of slow battery status response on some 6000114237Snjlsystems.) 6001114237Snjl 6002193267SjkimFixed a problem where a store of a NULL string to a package object 6003126372Snjlcould cause the premature deletion of the object. This was seen 6004126372Snjlduring execution of the battery _BIF method on some systems, 6005126372Snjlresulting in no battery data being returned. 6006114237Snjl 6007114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 6008114237Snjllists. 6009114237Snjl 6010193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6011126372Snjlbelow. These are the code and data sizes for the acpica.lib 6012126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6013126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6014126372Snjlversion of the code includes the debug output trace mechanism and 6015193267Sjkimhas a much larger code and data size. Note that these values will 6016126372Snjlvary depending on the efficiency of the compiler and the compiler 6017126372Snjloptions used during generation. 6018114237Snjl 6019114237Snjl Previous Release 6020114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6021114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6022114237Snjl Current Release: 6023114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6024114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6025114237Snjl 6026114237Snjl 6027114237Snjl2) Linux 6028114237Snjl 6029114237SnjlS3 fixes (Ole Rohne) 6030114237Snjl 6031114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 6032114237Snjl(Bjorn Helgaas) 6033114237Snjl 6034114237SnjlAdd S4BIOS support (Pavel Machek) 6035114237Snjl 6036114237SnjlMap in entire table before performing checksum (John Stultz) 6037114237Snjl 6038193267SjkimExpand the mem= cmdline to allow the specification of reserved and 6039126372SnjlACPI DATA blocks (Pavel Machek) 6040114237Snjl 6041114237SnjlNever use ACPI on VISWS 6042114237Snjl 6043114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 6044114237Snjl 6045114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 6046114237Snjlcausing us to think that some systems support C2 when they really 6047114237Snjldon't. 6048114237Snjl 6049114237SnjlDo not count processor objects for non-present CPUs (Thanks to 6050114237SnjlDominik Brodowski) 6051114237Snjl 6052114237Snjl 6053114237Snjl3) iASL Compiler: 6054114237Snjl 6055114237SnjlFixed a problem where ASL include files could not be found and 6056114237Snjlopened. 6057114237Snjl 6058114237SnjlAdded support for the _PDC reserved name. 6059114237Snjl 6060114237Snjl 6061117521Snjl---------------------------------------- 6062114237Snjl22 January 2003. Summary of changes for version 20030122. 6063114237Snjl 6064114237Snjl 6065114237Snjl1) ACPI CA Core Subsystem: 6066114237Snjl 6067114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 6068114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 6069193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 6070126372Snjldo anything anyway, the new prototype behavior will ignore this 6071126372Snjlerror. This is a case where we can relax the strict checking in 6072126372Snjlthe interpreter in the name of compatibility. 6073114237Snjl 6074114237Snjl 6075114237Snjl2) Linux 6076114237Snjl 6077114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 6078114237SnjlLinux package for the first time. This is the utility that is 6079193267Sjkimused to convert the ACPI CA base source code to the Linux version. 6080114237Snjl 6081114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 6082114237Snjl 6083114237Snjl(Both) Move more headers to include/acpi, and delete an unused 6084114237Snjlheader. 6085114237Snjl 6086114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 6087114237Snjl 6088114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 6089114237Snjl 6090114237Snjl(Both) Remove include of unused header (Adrian Bunk) 6091114237Snjl 6092114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 6093114237Snjlthe 6094193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 6095126372Snjlnow. 6096114237Snjl 6097193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 6098114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 6099114237Snjl 6100114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 6101114237Snjl 6102114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 6103114237Snjl 6104114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 6105114237Snjl(Dominik Brodowski) 6106114237Snjl 6107114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 6108114237Snjl 6109114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 6110114237SnjlVisinoni) 6111114237Snjl 6112114237Snjl 6113114237Snjl3) iASL Compiler: 6114114237Snjl 6115114237SnjlAdded support to disassemble SSDT and PSDTs. 6116114237Snjl 6117114237SnjlImplemented support to obtain SSDTs from the Windows registry if 6118114237Snjlavailable. 6119114237Snjl 6120114237Snjl 6121102550Siwasaki---------------------------------------- 6122114237Snjl09 January 2003. Summary of changes for version 20030109. 6123114237Snjl 6124114237Snjl1) ACPI CA Core Subsystem: 6125114237Snjl 6126114237SnjlChanged the behavior of the internal Buffer-to-String conversion 6127193267Sjkimfunction. The current ACPI specification states that the contents 6128126372Snjlof the buffer are "converted to a string of two-character 6129126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 6130193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 6131193267Sjkimimplementations (although the behavior was not defined in the ACPI 6132126372Snjl1.0 specification). The new behavior simply copies data from the 6133193267Sjkimbuffer to the string until a null character is found or the end of 6134126372Snjlthe buffer is reached. The new String object is always null 6135126372Snjlterminated. This problem was seen during the generation of _BIF 6136126372Snjlbattery data where incorrect strings were returned for battery 6137126372Snjltype, etc. This will also require an errata to the ACPI 6138126372Snjlspecification. 6139114237Snjl 6140114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 6141114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 6142114237Snjl 6143114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 6144114237Snjlupdated to 2003. 6145114237Snjl 6146193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6147126372Snjlbelow. These are the code and data sizes for the acpica.lib 6148126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6149126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6150126372Snjlversion of the code includes the debug output trace mechanism and 6151193267Sjkimhas a much larger code and data size. Note that these values will 6152126372Snjlvary depending on the efficiency of the compiler and the compiler 6153126372Snjloptions used during generation. 6154114237Snjl 6155114237Snjl Previous Release 6156114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6157114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6158114237Snjl Current Release: 6159114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6160114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6161114237Snjl 6162114237Snjl 6163114237Snjl2) Linux 6164114237Snjl 6165114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 6166114237Snjl 6167114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 6168114237Snjl 6169114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 6170114237Snjl 6171114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 6172114237Snjl 6173114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 6174114237Snjlof schedule_work() 6175114237Snjl 6176114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 6177114237Snjl 6178114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 6179114237Snjl 6180114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 6181114237Snjl 6182114237SnjlSeveral changes have been made to the source code translation 6183114237Snjlutility that generates the Linux Code in order to make the code 6184114237Snjlmore "Linux-like": 6185114237Snjl 6186114237SnjlAll typedefs on structs and unions have been removed in keeping 6187114237Snjlwith the Linux coding style. 6188114237Snjl 6189114237SnjlRemoved the non-Linux SourceSafe module revision number from each 6190114237Snjlmodule header. 6191114237Snjl 6192114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 6193114237SnjlDoubled the number of symbols that are lowercased. 6194114237Snjl 6195114237SnjlFixed a problem where identifiers within procedure headers and 6196114237Snjlwithin quotes were not fully lower cased (they were left with a 6197114237Snjlstarting capital.) 6198114237Snjl 6199114237SnjlSome C macros whose only purpose is to allow the generation of 16- 6200114237Snjlbit code are now completely removed in the Linux code, increasing 6201114237Snjlreadability and maintainability. 6202114237Snjl 6203114237Snjl---------------------------------------- 6204114237Snjl 6205114237Snjl12 December 2002. Summary of changes for version 20021212. 6206114237Snjl 6207114237Snjl 6208114237Snjl1) ACPI CA Core Subsystem: 6209114237Snjl 6210114237SnjlFixed a problem where the creation of a zero-length AML Buffer 6211114237Snjlwould cause a fault. 6212114237Snjl 6213193267SjkimFixed a problem where a Buffer object that pointed to a static AML 6214126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 6215126372Snjlmemory corruption. 6216114237Snjl 6217114237SnjlFixed a problem where a user buffer (passed in to the external 6218114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 6219114237Snjlsmall to complete the operation, causing memory corruption. 6220114237Snjl 6221114237SnjlFixed a problem in the Buffer-to-String conversion code where a 6222114237Snjlstring of length one was always returned, regardless of the size 6223114237Snjlof the input Buffer object. 6224114237Snjl 6225114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 6226114237Snjllack of need and lack of consistent use. 6227114237Snjl 6228193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6229126372Snjlbelow. These are the code and data sizes for the acpica.lib 6230126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6231126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6232126372Snjlversion of the code includes the debug output trace mechanism and 6233193267Sjkimhas a much larger code and data size. Note that these values will 6234126372Snjlvary depending on the efficiency of the compiler and the compiler 6235126372Snjloptions used during generation. 6236114237Snjl 6237114237Snjl Previous Release 6238114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6239114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6240114237Snjl Current Release: 6241114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6242114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6243114237Snjl 6244114237Snjl 6245114237Snjl---------------------------------------- 6246114237Snjl05 December 2002. Summary of changes for version 20021205. 6247114237Snjl 6248114237Snjl1) ACPI CA Core Subsystem: 6249114237Snjl 6250114237SnjlFixed a problem where a store to a String or Buffer object could 6251114237Snjlcause corruption of the DSDT if the object type being stored was 6252114237Snjlthe same as the target object type and the length of the object 6253114237Snjlbeing stored was equal to or smaller than the original (existing) 6254114237Snjltarget object. This was seen to cause corruption of battery _BIF 6255114237Snjlbuffers if the _BIF method modified the buffer on the fly. 6256114237Snjl 6257193267SjkimFixed a problem where an internal error was generated if a control 6258126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 6259126372SnjlPackage declaration. This was caused by the deferred parsing of 6260126372Snjlthe control method and thus the deferred creation of the internal 6261126372Snjlmethod object. The solution to this problem was to create the 6262126372Snjlinternal method object at the moment the method is encountered in 6263126372Snjlthe first pass - so that subsequent references to the method will 6264126372Snjlable to obtain the required parameter count and thus properly 6265126372Snjlparse the method invocation. This problem presented itself as an 6266126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 6267114237Snjl 6268114237SnjlFixed a problem where the internal String object copy routine did 6269193267Sjkimnot always allocate sufficient memory for the target String object 6270126372Snjland caused memory corruption. This problem was seen to cause 6271126372Snjl"Allocation already present in list!" errors as memory allocation 6272126372Snjlbecame corrupted. 6273114237Snjl 6274193267SjkimImplemented a new function for the evaluation of namespace objects 6275126372Snjlthat allows the specification of the allowable return object 6276126372Snjltypes. This simplifies a lot of code that checks for a return 6277126372Snjlobject of one or more specific objects returned from the 6278114237Snjlevaluation (such as _STA, etc.) This may become and external 6279114237Snjlfunction if it would be useful to ACPI-related drivers. 6280114237Snjl 6281114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 6282114237Snjlclarity. 6283114237Snjl 6284114237SnjlCompleted additional code restructuring to allow more modular 6285114237Snjllinking for iASL compiler and AcpiExec. Several files were split 6286114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 6287114237Snjl 6288114237SnjlImplemented an abort mechanism to terminate an executing control 6289193267Sjkimmethod via the AML debugger. This feature is useful for debugging 6290126372Snjlcontrol methods that depend (wait) for specific hardware 6291126372Snjlresponses. 6292114237Snjl 6293193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6294126372Snjlbelow. These are the code and data sizes for the acpica.lib 6295126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6296126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6297126372Snjlversion of the code includes the debug output trace mechanism and 6298193267Sjkimhas a much larger code and data size. Note that these values will 6299126372Snjlvary depending on the efficiency of the compiler and the compiler 6300126372Snjloptions used during generation. 6301114237Snjl 6302114237Snjl Previous Release 6303114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6304114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6305114237Snjl Current Release: 6306114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6307114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6308114237Snjl 6309114237Snjl 6310114237Snjl2) iASL Compiler/Disassembler 6311114237Snjl 6312114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 6313114237SnjlDescriptors. If specified in the ASL, the optional "Resource 6314114237SnjlSource Index" and "Resource Source" fields were not inserted into 6315114237Snjlthe correct location within the AML resource descriptor, creating 6316114237Snjlan invalid descriptor. 6317114237Snjl 6318193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 6319126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 6320126372Snjlwere ignored. 6321114237Snjl 6322114237Snjl 6323114237Snjl---------------------------------------- 6324114237Snjl22 November 2002. Summary of changes for version 20021122. 6325114237Snjl 6326114237Snjl 6327114237Snjl1) ACPI CA Core Subsystem: 6328114237Snjl 6329114237SnjlFixed a reported problem where an object stored to a Method Local 6330114237Snjlor Arg was not copied to a new object during the store - the 6331114237Snjlobject pointer was simply copied to the Local/Arg. This caused 6332114237Snjlall subsequent operations on the Local/Arg to also affect the 6333114237Snjloriginal source of the store operation. 6334114237Snjl 6335114237SnjlFixed a problem where a store operation to a Method Local or Arg 6336114237Snjlwas not completed properly if the Local/Arg contained a reference 6337114237Snjl(from RefOf) to a named field. The general-purpose store-to- 6338114237Snjlnamespace-node code is now used so that this case is handled 6339114237Snjlautomatically. 6340114237Snjl 6341193267SjkimFixed a problem where the internal object copy routine would cause 6342126372Snjla protection fault if the object being copied was a Package and 6343126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 6344114237Snjlpackage. 6345114237Snjl 6346114237SnjlFixed a problem with the GPE initialization that resulted from an 6347114237Snjlambiguity in the ACPI specification. One section of the 6348114237Snjlspecification states that both the address and length of the GPE 6349193267Sjkimblock must be zero if the block is not supported. Another section 6350126372Snjlimplies that only the address need be zero if the block is not 6351193267Sjkimsupported. The code has been changed so that both the address and 6352126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 6353126372Snjlif either the address or the length is zero, the GPE block is 6354126372Snjlinvalid.) 6355114237Snjl 6356193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6357126372Snjlbelow. These are the code and data sizes for the acpica.lib 6358126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6359126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6360126372Snjlversion of the code includes the debug output trace mechanism and 6361193267Sjkimhas a much larger code and data size. Note that these values will 6362126372Snjlvary depending on the efficiency of the compiler and the compiler 6363126372Snjloptions used during generation. 6364114237Snjl 6365114237Snjl Previous Release 6366114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 6367114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 6368114237Snjl Current Release: 6369114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6370114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6371114237Snjl 6372114237Snjl 6373114237Snjl2) Linux 6374114237Snjl 6375114237SnjlCleaned up EC driver. Exported an external EC read/write 6376114237Snjlinterface. By going through this, other drivers (most notably 6377114237Snjlsonypi) will be able to serialize access to the EC. 6378114237Snjl 6379114237Snjl 6380114237Snjl3) iASL Compiler/Disassembler 6381114237Snjl 6382114237SnjlImplemented support to optionally generate include files for both 6383114237SnjlASM and C (the -i switch). This simplifies BIOS development by 6384114237Snjlautomatically creating include files that contain external 6385114237Snjldeclarations for the symbols that are created within the 6386167802Sjkim 6387114237Snjl(optionally generated) ASM and C AML source files. 6388114237Snjl 6389114237Snjl 6390114237Snjl---------------------------------------- 6391107325Siwasaki15 November 2002. Summary of changes for version 20021115. 6392104470Siwasaki 6393107325Siwasaki1) ACPI CA Core Subsystem: 6394107325Siwasaki 6395114237SnjlFixed a memory leak problem where an error during resolution of 6396167802Sjkim 6397114237Snjlmethod arguments during a method invocation from another method 6398114237Snjlfailed to cleanup properly by deleting all successfully resolved 6399114237Snjlargument objects. 6400107325Siwasaki 6401114237SnjlFixed a problem where the target of the Index() operator was not 6402114237Snjlcorrectly constructed if the source object was a package. This 6403114237Snjlproblem has not been detected because the use of a target operand 6404114237Snjlwith Index() is very rare. 6405107325Siwasaki 6406107325SiwasakiFixed a problem with the Index() operator where an attempt was 6407107325Siwasakimade to delete the operand objects twice. 6408107325Siwasaki 6409107325SiwasakiFixed a problem where an attempt was made to delete an operand 6410114237Snjltwice during execution of the CondRefOf() operator if the target 6411114237Snjldid not exist. 6412107325Siwasaki 6413114237SnjlImplemented the first of perhaps several internal create object 6414193267Sjkimfunctions that create and initialize a specific object type. This 6415126372Snjlconsolidates duplicated code wherever the object is created, thus 6416126372Snjlshrinking the size of the subsystem. 6417107325Siwasaki 6418114237SnjlImplemented improved debug/error messages for errors that occur 6419114237Snjlduring nested method invocations. All executing method pathnames 6420193267Sjkimare displayed (with the error) as the call stack is unwound - thus 6421126372Snjlsimplifying debug. 6422107325Siwasaki 6423107325SiwasakiFixed a problem introduced in the 10/02 release that caused 6424114237Snjlpremature deletion of a buffer object if a buffer was used as an 6425114237SnjlASL operand where an integer operand is required (Thus causing an 6426193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 6427126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 6428114237Snjlincorrectly.) 6429107325Siwasaki 6430193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6431126372Snjlbelow. These are the code and data sizes for the acpica.lib 6432126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6433126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6434126372Snjlversion of the code includes the debug output trace mechanism and 6435193267Sjkimhas a much larger code and data size. Note that these values will 6436126372Snjlvary depending on the efficiency of the compiler and the compiler 6437126372Snjloptions used during generation. 6438107325Siwasaki 6439107325Siwasaki Previous Release 6440107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 6441107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 6442107325Siwasaki Current Release: 6443107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 6444107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 6445107325Siwasaki 6446107325Siwasaki 6447107325Siwasaki2) Linux 6448107325Siwasaki 6449114237SnjlChanged the implementation of the ACPI semaphores to use down() 6450114237Snjlinstead of down_interruptable(). It is important that the 6451114237Snjlexecution of ACPI control methods not be interrupted by signals. 6452114237SnjlMethods must run to completion, or the system may be left in an 6453114237Snjlunknown/unstable state. 6454107325Siwasaki 6455193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 6456126372Snjl(Shawn Starr) 6457107325Siwasaki 6458107325Siwasaki 6459107325Siwasaki3) iASL Compiler/Disassembler 6460107325Siwasaki 6461107325Siwasaki 6462114237SnjlChanged the default location of output files. All output files 6463114237Snjlare now placed in the current directory by default instead of in 6464114237Snjlthe directory of the source file. This change may affect some 6465114237Snjlexisting makefiles, but it brings the behavior of the compiler in 6466114237Snjlline with other similar tools. The location of the output files 6467114237Snjlcan be overridden with the -p command line switch. 6468107325Siwasaki 6469114237Snjl 6470107325Siwasaki---------------------------------------- 6471107325Siwasaki11 November 2002. Summary of changes for version 20021111. 6472107325Siwasaki 6473107325Siwasaki 6474114237Snjl0) ACPI Specification 2.0B is released and is now available at: 6475114237Snjlhttp://www.acpi.info/index.html 6476107325Siwasaki 6477107325Siwasaki 6478107325Siwasaki1) ACPI CA Core Subsystem: 6479107325Siwasaki 6480107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 6481114237SnjlThis includes the early detection and handoff of the request to 6482114237Snjlthe SMBus region handler (avoiding all of the complex field 6483107325Siwasakisupport code), and support for the bidirectional return packet 6484107325Siwasakifrom an SMBus write operation. This paves the way for the 6485107325Siwasakidevelopment of SMBus drivers in each host operating system. 6486107325Siwasaki 6487107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 6488107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 6489107325Siwasakispecification. This had the side effect of causing ASL 6490107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 6491107325Siwasakiforever. Changed all internal references to the ACPI timeout 6492193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 6493126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 6494107325Siwasaki 6495193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6496126372Snjlbelow. These are the code and data sizes for the acpica.lib 6497126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6498126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6499126372Snjlversion of the code includes the debug output trace mechanism and 6500193267Sjkimhas a much larger code and data size. Note that these values will 6501126372Snjlvary depending on the efficiency of the compiler and the compiler 6502126372Snjloptions used during generation. 6503107325Siwasaki 6504107325Siwasaki Previous Release 6505107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6506107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 6507107325Siwasaki Current Release: 6508107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 6509107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 6510107325Siwasaki 6511107325Siwasaki 6512107325Siwasaki2) Linux 6513107325Siwasaki 6514107325SiwasakiModule loading/unloading fixes (John Cagle) 6515107325Siwasaki 6516107325Siwasaki 6517107325Siwasaki3) iASL Compiler/Disassembler 6518107325Siwasaki 6519107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 6520107325Siwasaki 6521107325SiwasakiImplemented support for the disassembly of all SMBus protocol 6522107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 6523107325Siwasaki 6524107325Siwasaki---------------------------------------- 6525107325Siwasaki01 November 2002. Summary of changes for version 20021101. 6526107325Siwasaki 6527107325Siwasaki 6528107325Siwasaki1) ACPI CA Core Subsystem: 6529107325Siwasaki 6530193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 6531126372Snjlblock were not handled correctly. This resulted in a "GPE 6532114237Snjloverlap" error message. GPE0 is no longer required. 6533107325Siwasaki 6534107325SiwasakiRemoved code added in the previous release that inserted nodes 6535114237Snjlinto the namespace in alphabetical order. This caused some side- 6536114237Snjleffects on various machines. The root cause of the problem is 6537114237Snjlstill under investigation since in theory, the internal ordering 6538114237Snjlof the namespace nodes should not matter. 6539107325Siwasaki 6540107325Siwasaki 6541114237SnjlEnhanced error reporting for the case where a named object is not 6542114237Snjlfound during control method execution. The full ACPI namepath 6543114237Snjl(name reference) of the object that was not found is displayed in 6544114237Snjlthis case. 6545107325Siwasaki 6546193267SjkimNote: as a result of the overhaul of the namespace object types in 6547126372Snjlthe previous release, the namespace nodes for the predefined 6548114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 6549114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 6550114237Snjlmanagement code but may affect code that walks the namespace tree 6551114237Snjllooking for specific object types. 6552114237Snjl 6553193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6554126372Snjlbelow. These are the code and data sizes for the acpica.lib 6555126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6556126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6557126372Snjlversion of the code includes the debug output trace mechanism and 6558193267Sjkimhas a much larger code and data size. Note that these values will 6559126372Snjlvary depending on the efficiency of the compiler and the compiler 6560126372Snjloptions used during generation. 6561107325Siwasaki 6562107325Siwasaki Previous Release 6563107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 6564107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 6565107325Siwasaki Current Release: 6566107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6567107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 6568107325Siwasaki 6569107325Siwasaki 6570107325Siwasaki2) Linux 6571107325Siwasaki 6572107325SiwasakiFixed a problem introduced in the previous release where the 6573193267SjkimProcessor and Thermal objects were not recognized and installed in 6574193267Sjkim/proc. This was related to the scope type change described above. 6575107325Siwasaki 6576107325Siwasaki 6577107325Siwasaki3) iASL Compiler/Disassembler 6578107325Siwasaki 6579114237SnjlImplemented the -g option to get all of the required ACPI tables 6580114237Snjlfrom the registry and save them to files (Windows version of the 6581193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 6582107325Siwasaki 6583114237SnjlAdded ACPI table checksum validation during table disassembly in 6584114237Snjlorder to catch corrupted tables. 6585107325Siwasaki 6586107325Siwasaki 6587107325Siwasaki---------------------------------------- 6588107325Siwasaki22 October 2002. Summary of changes for version 20021022. 6589107325Siwasaki 6590107325Siwasaki1) ACPI CA Core Subsystem: 6591107325Siwasaki 6592114237SnjlImplemented a restriction on the Scope operator that the target 6593114237Snjlmust already exist in the namespace at the time the operator is 6594114237Snjlencountered (during table load or method execution). In other 6595114237Snjlwords, forward references are not allowed and Scope() cannot 6596114237Snjlcreate a new object. This changes the previous behavior where the 6597193267Sjkiminterpreter would create the name if not found. This new behavior 6598126372Snjlcorrectly enables the search-to-root algorithm during namespace 6599126372Snjllookup of the target name. Because of this upsearch, this fixes 6600126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 6601126372Snjlinterpreter and iASL compiler compatible with other ACPI 6602114237Snjlimplementations. 6603107325Siwasaki 6604114237SnjlCompleted a major overhaul of the internal ACPI object types for 6605114237Snjlthe ACPI Namespace and the associated operand objects. Many of 6606114237Snjlthese types had become obsolete with the introduction of the two- 6607114237Snjlpass namespace load. This cleanup simplifies the code and makes 6608114237Snjlthe entire namespace load mechanism much clearer and easier to 6609114237Snjlunderstand. 6610107325Siwasaki 6611114237SnjlImproved debug output for tracking scope opening/closing to help 6612114237Snjldiagnose scoping issues. The old scope name as well as the new 6613114237Snjlscope name are displayed. Also improved error messages for 6614114237Snjlproblems with ASL Mutex objects and error messages for GPE 6615114237Snjlproblems. 6616107325Siwasaki 6617107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 6618107325Siwasaki 6619114237SnjlAll string output (for all namespace/object dumps) now uses the 6620193267Sjkimcommon ACPI string output procedure which handles escapes properly 6621126372Snjland does not emit non-printable characters. 6622107325Siwasaki 6623107325SiwasakiFixed some issues with constants in the 64-bit version of the 6624107325Siwasakilocal C library (utclib.c) 6625107325Siwasaki 6626107325Siwasaki 6627107325Siwasaki2) Linux 6628107325Siwasaki 6629107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 6630107325Siwasakiinterrupt level. 6631107325Siwasaki 6632107325Siwasaki 6633107325Siwasaki3) iASL Compiler/Disassembler 6634107325Siwasaki 6635193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 6636126372Snjl2 opcodes outside of a control method. This means that the 6637114237Snjl"executable" operators (versus the "namespace" operators) cannot 6638193267Sjkimbe used at the table level; they can only be used within a control 6639126372Snjlmethod. 6640107325Siwasaki 6641107325SiwasakiImplemented the restriction on the Scope() operator where the 6642107325Siwasakitarget must already exist in the namespace at the time the 6643114237Snjloperator is encountered (during ASL compilation). In other words, 6644193267Sjkimforward references are not allowed and Scope() cannot create a new 6645126372Snjlobject. This makes the iASL compiler compatible with other ACPI 6646193267Sjkimimplementations and makes the Scope() implementation adhere to the 6647126372SnjlACPI specification. 6648107325Siwasaki 6649193267SjkimFixed a problem where namepath optimization for the Alias operator 6650193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 6651126372Snjla "Missing alias link" error message. 6652107325Siwasaki 6653114237SnjlFixed a problem where an "unknown reserved name" warning could be 6654114237Snjlincorrectly generated for names like "_SB" when the trailing 6655114237Snjlunderscore is not used in the original ASL. 6656107325Siwasaki 6657107325SiwasakiFixed a problem where the reserved name check did not handle 6658114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 6659114237Snjlthe NamePath was examined instead of the last NameSeg. 6660107325Siwasaki 6661107325Siwasaki 6662107325Siwasaki---------------------------------------- 6663107325Siwasaki 6664104470Siwasaki02 October 2002. Summary of changes for this release. 6665104470Siwasaki 6666104470Siwasaki 6667104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 6668104470Siwasaki 6669104470SiwasakiFixed a problem where a store/copy of a string to an existing 6670193267Sjkimstring did not always set the string length properly in the String 6671126372Snjlobject. 6672104470Siwasaki 6673104470SiwasakiFixed a reported problem with the ToString operator where the 6674193267Sjkimbehavior was identical to the ToHexString operator instead of just 6675126372Snjlsimply converting a raw buffer to a string data type. 6676104470Siwasaki 6677104470SiwasakiFixed a problem where CopyObject and the other "explicit" 6678193267Sjkimconversion operators were not updating the internal namespace node 6679126372Snjltype as part of the store operation. 6680104470Siwasaki 6681104470SiwasakiFixed a memory leak during implicit source operand conversion 6682193267Sjkimwhere the original object was not deleted if it was converted to a 6683126372Snjlnew object of a different type. 6684104470Siwasaki 6685193267SjkimEnhanced error messages for all problems associated with namespace 6686193267Sjkimlookups. Common procedure generates and prints the lookup name as 6687126372Snjlwell as the formatted status. 6688104470Siwasaki 6689104470SiwasakiCompleted implementation of a new design for the Alias support 6690193267Sjkimwithin the namespace. The existing design did not handle the case 6691193267Sjkimwhere a new object was assigned to one of the two names due to the 6692193267Sjkimuse of an explicit conversion operator, resulting in the two names 6693126372Snjlpointing to two different objects. The new design simply points 6694126372Snjlthe Alias name to the original name node - not to the object. 6695193267SjkimThis results in a level of indirection that must be handled in the 6696126372Snjlname resolution mechanism. 6697104470Siwasaki 6698193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6699126372Snjlbelow. These are the code and data sizes for the acpica.lib 6700126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6701126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6702126372Snjlversion of the code includes the debug output trace mechanism and 6703193267Sjkimhas a larger code and data size. Note that these values will vary 6704126372Snjldepending on the efficiency of the compiler and the compiler 6705126372Snjloptions used during generation. 6706104470Siwasaki 6707104470Siwasaki Previous Release 6708104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 6709104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 6710104470Siwasaki Current Release: 6711104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 6712104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 6713104470Siwasaki 6714104470Siwasaki 6715104470Siwasaki2) Linux 6716104470Siwasaki 6717104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 6718104470SiwasakiNeumann) 6719104470Siwasaki 6720104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 6721104470Siwasaki 6722114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 6723104470Siwasaki 6724104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 6725104470Siwasaki 6726104470SiwasakiIA64 fixes. (David Mosberger) 6727104470Siwasaki 6728104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 6729104470Siwasaki 6730104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 6731104470SiwasakiBrodowski) 6732104470Siwasaki 6733104470Siwasaki 6734104470Siwasaki3) iASL Compiler/Disassembler 6735104470Siwasaki 6736104470SiwasakiClarified some warning/error messages. 6737104470Siwasaki 6738104470Siwasaki 6739104470Siwasaki---------------------------------------- 6740104470Siwasaki18 September 2002. Summary of changes for this release. 6741104470Siwasaki 6742104470Siwasaki 6743104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 6744104470Siwasaki 6745114237SnjlFixed a reported problem with reference chaining (via the Index() 6746193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 6747126372SnjlThe definition of these operators includes the dereferencing of 6748126372Snjlall chained references to return information on the base object. 6749104470Siwasaki 6750104470SiwasakiFixed a problem with stores to indexed package elements - the 6751104470Siwasakiexisting code would not complete the store if an "implicit 6752114237Snjlconversion" was not performed. In other words, if the existing 6753114237Snjlobject (package element) was to be replaced completely, the code 6754114237Snjldidn't handle this case. 6755104470Siwasaki 6756104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 6757104470Siwasakitarget name to refer to an object of type Integer, String, or 6758104470SiwasakiBuffer, in addition to the scoping object types (Device, 6759104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 6760114237SnjlThis allows existing AML code that has workarounds for a bug in 6761193267SjkimWindows to function properly. A warning is issued, however. This 6762126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 6763126372Snjlan example of this type of ASL code: 6764104470Siwasaki 6765104470Siwasaki Name(DEB,0x00) 6766104470Siwasaki Scope(DEB) 6767104470Siwasaki { 6768104470Siwasaki 6769114237SnjlFixed some reported problems with 64-bit integer support in the 6770114237Snjllocal implementation of C library functions (clib.c) 6771104470Siwasaki 6772104470Siwasaki 6773104470Siwasaki2) Linux 6774104470Siwasaki 6775104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 6776104470Siwasakiundefined in non-SMP. 6777104470Siwasaki 6778114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 6779114237Snjlsystems that do not have an interrupt override entry in the MADT. 6780104470Siwasaki 6781104470Siwasaki2.5 big driver reorganization (Pat Mochel) 6782104470Siwasaki 6783104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 6784104470Siwasaki 6785104470SiwasakiNew blacklist entries (Andi Kleen) 6786104470Siwasaki 6787114237SnjlBlacklist improvements. Split blacklist code out into a separate 6788114237Snjlfile. Move checking the blacklist to very early. Previously, we 6789114237Snjlwould use ACPI tables, and then halfway through init, check the 6790114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 6791114237Snjlback to non-ACPI. 6792104470Siwasaki 6793104470Siwasaki 6794104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 6795104470Siwasaki 6796114237SnjlFixed a problem where the typechecking code didn't know that an 6797114237Snjlalias could point to a method. In other words, aliases were not 6798114237Snjlbeing dereferenced during typechecking. 6799104470Siwasaki 6800104470Siwasaki 6801104470Siwasaki---------------------------------------- 6802104470Siwasaki29 August 2002. Summary of changes for this release. 6803104470Siwasaki 6804104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 6805104470Siwasaki 6806114237SnjlIf the target of a Scope() operator already exists, it must be an 6807114237Snjlobject type that actually opens a scope -- such as a Device, 6808193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 6809126372Snjlcheck has been added to the iASL compiler also. 6810104470Siwasaki 6811114237SnjlTightened up the namespace load to disallow multiple names in the 6812114237Snjlsame scope. This previously was allowed if both objects were of 6813114237Snjlthe same type. (i.e., a lookup was the same as entering a new 6814114237Snjlname). 6815104470Siwasaki 6816104470Siwasaki 6817104470Siwasaki2) Linux 6818104470Siwasaki 6819104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 6820104470Siwasakipolarity. 6821104470Siwasaki 6822104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 6823104470Siwasaki 6824104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 6825104470Siwasakiinterpreter *or* the tables. 6826104470Siwasaki 6827193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 6828126372SnjlTakayoshi) 6829104470Siwasaki 6830104470Siwasaki 6831104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 6832104470Siwasaki 6833104470SiwasakiImplemented namepath optimization for name declarations. For 6834104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 6835104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 6836104470Siwasaki\_SB_ scope. This optimization is in addition to the named 6837104470Siwasakireference path optimization first released in the previous 6838114237Snjlversion. This would seem to complete all possible optimizations 6839114237Snjlfor namepaths within the ASL/AML. 6840104470Siwasaki 6841114237SnjlIf the target of a Scope() operator already exists, it must be an 6842114237Snjlobject type that actually opens a scope -- such as a Device, 6843114237SnjlMethod, Scope, etc. 6844104470Siwasaki 6845114237SnjlImplemented a check and warning for unreachable code in the same 6846114237Snjlblock below a Return() statement. 6847104470Siwasaki 6848114237SnjlFixed a problem where the listing file was not generated if the 6849114237Snjlcompiler aborted if the maximum error count was exceeded (200). 6850104470Siwasaki 6851193267SjkimFixed a problem where the typechecking of method return values was 6852126372Snjlbroken. This includes the check for a return value when the 6853114237Snjlmethod is invoked as a TermArg (a return value is expected.) 6854104470Siwasaki 6855104470SiwasakiFixed a reported problem where EOF conditions during a quoted 6856104470Siwasakistring or comment caused a fault. 6857104470Siwasaki 6858104470Siwasaki 6859104470Siwasaki---------------------------------------- 6860102550Siwasaki15 August 2002. Summary of changes for this release. 6861102550Siwasaki 6862102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 6863102550Siwasaki 6864114237SnjlFixed a reported problem where a Store to a method argument that 6865193267Sjkimcontains a reference did not perform the indirect store correctly. 6866126372SnjlThis problem was created during the conversion to the new 6867126372Snjlreference object model - the indirect store to a method argument 6868126372Snjlcode was not updated to reflect the new model. 6869102550Siwasaki 6870114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 6871193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 6872102550Siwasaki 6873102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 6874114237Snjlprefix. The heavy use of the carat operator by the new namepath 6875193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 6876126372Snjlinterpreter handling of this prefix. In the case where one or 6877126372Snjlmore carats precede a single nameseg, the nameseg was treated as 6878126372Snjlstandalone and the search rule (to root) was inadvertently 6879114237Snjlapplied. This could cause both the iASL compiler and the 6880114237Snjlinterpreter to find the wrong object or to miss the error that 6881114237Snjlshould occur if the object does not exist at that exact pathname. 6882102550Siwasaki 6883114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 6884193267Sjkimload. This was a relatively minor tweak to the table loading code 6885126372Snjl(a problem caused by the unexpected encounter with a method 6886193267Sjkiminvocation not within a control method), but it does not solve the 6887126372Snjloverall issue of the execution of AML code at the table level. 6888126372SnjlThis investigation is still ongoing. 6889102550Siwasaki 6890193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6891126372Snjlbelow. These are the code and data sizes for the acpica.lib 6892126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6893126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6894126372Snjlversion of the code includes the debug output trace mechanism and 6895193267Sjkimhas a larger code and data size. Note that these values will vary 6896126372Snjldepending on the efficiency of the compiler and the compiler 6897126372Snjloptions used during generation. 6898102550Siwasaki 6899102550Siwasaki Previous Release 6900104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 6901104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 6902102550Siwasaki Current Release: 6903104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 6904104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 6905102550Siwasaki 6906102550Siwasaki 6907102550Siwasaki2) Linux 6908102550Siwasaki 6909102550SiwasakiRemove redundant slab.h include (Brad Hards) 6910102550Siwasaki 6911102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 6912102550Siwasaki 6913102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 6914102550Siwasaki 6915104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 6916104470SiwasakiMachek) 6917102550Siwasaki 6918102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 6919102550Siwasaki 6920102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 6921102550Siwasaki 6922102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 6923102550Siwasaki 6924102550Siwasaki 6925102550Siwasaki3) iASL Compiler/Disassembler 6926102550Siwasaki 6927114237SnjlReworked the compiler options to make them more consistent and to 6928114237Snjluse two-letter options where appropriate. We were running out of 6929114237Snjlsensible letters. This may break some makefiles, so check the 6930114237Snjlcurrent options list by invoking the compiler with no parameters. 6931102550Siwasaki 6932102550SiwasakiCompleted the design and implementation of the ASL namepath 6933114237Snjloptimization option for the compiler. This option optimizes all 6934114237Snjlreferences to named objects to the shortest possible path. The 6935193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 6936126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 6937126372Snjlcannot be used (because either the name is not in the search path 6938126372Snjlor there is a conflict with another object with the same name), 6939126372Snjlthe pathname is optimized using the carat prefix (usually a 6940126372Snjlshorter string than specifying the entire path from the root.) 6941102550Siwasaki 6942114237SnjlImplemented support to obtain the DSDT from the Windows registry 6943114237Snjl(when the disassembly option is specified with no input file). 6944114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 6945114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 6946114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 6947114237Snjlfunction in the DOS OSL to make the disassembler truly OS 6948114237Snjlindependent. 6949102550Siwasaki 6950114237SnjlImplemented a new option to disassemble and compile in one step. 6951114237SnjlWhen used without an input filename, this option will grab the 6952193267SjkimDSDT from the local machine, disassemble it, and compile it in one 6953126372Snjlstep. 6954102550Siwasaki 6955114237SnjlAdded a warning message for invalid escapes (a backslash followed 6956114237Snjlby any character other than the allowable escapes). This catches 6957114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 6958167802Sjkim 6959193267SjkimAlso, there are numerous instances in the ACPI specification where 6960126372Snjlthis error occurs. 6961102550Siwasaki 6962104470SiwasakiAdded a compiler option to disable all optimizations. This is 6963114237Snjlbasically the "compatibility mode" because by using this option, 6964114237Snjlthe AML code will come out exactly the same as other ASL 6965114237Snjlcompilers. 6966102550Siwasaki 6967114237SnjlAdded error messages for incorrectly ordered dependent resource 6968114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 6969114237Snjldependent resource list, nested dependent function macros (both 6970114237Snjlstart and end), and missing StartDependentFn macro. These are 6971114237Snjlcommon errors that should be caught at compile time. 6972102550Siwasaki 6973114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 6974114237Snjlmust be included in the namespace for proper disassembly (because 6975114237Snjlthe disassembler must know the number of arguments.) 6976102550Siwasaki 6977104470SiwasakiAdded an "optimization" message type that is optional (off by 6978114237Snjldefault). This message is used for all optimizations - including 6979193267Sjkimconstant folding, integer optimization, and namepath optimization. 6980102550Siwasaki 6981102550Siwasaki---------------------------------------- 6982102550Siwasaki25 July 2002. Summary of changes for this release. 6983102550Siwasaki 6984102550Siwasaki 6985102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 6986102550Siwasaki 6987114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 6988193267Sjkimcode and has been integrated into the iASL compiler (see below) as 6989126372Snjlwell as the single-step disassembly for the AML debugger and the 6990126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 6991126372Snjlresource templates and macros are fully supported. The 6992114237Snjldisassembler has been tested on over 30 different AML files, 6993114237Snjlproducing identical AML when the resulting disassembled ASL file 6994114237Snjlis recompiled with the same ASL compiler. 6995102550Siwasaki 6996114237SnjlModified the Resource Manager to allow zero interrupts and zero 6997114237Snjldma channels during the GetCurrentResources call. This was 6998114237Snjlcausing problems on some platforms. 6999102550Siwasaki 7000114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 7001114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 7002114237Snjlinterfaces. 7003102550Siwasaki 7004193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7005126372Snjlbelow. These are the code and data sizes for the acpica.lib 7006126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7007126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7008126372Snjlversion of the code includes the debug output trace mechanism and 7009193267Sjkimhas a larger code and data size. Note that these values will vary 7010126372Snjldepending on the efficiency of the compiler and the compiler 7011126372Snjloptions used during generation. 7012102550Siwasaki 7013102550Siwasaki Previous Release 7014104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7015104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7016102550Siwasaki Current Release: 7017104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7018104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7019102550Siwasaki 7020102550Siwasaki 7021102550Siwasaki2) Linux 7022102550Siwasaki 7023102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 7024102550Siwasaki 7025114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 7026114237Snjl(Richard Schaal) 7027102550Siwasaki 7028102550Siwasaki 7029102550Siwasaki3) iASL compiler 7030102550Siwasaki 7031114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 7032114237Snjloption invokes the disassembler to completely disassemble an 7033114237Snjlinput AML file, producing as output a text ASL file with the 7034114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 7035114237Snjlsource files.) A future enhancement will allow the disassembler 7036114237Snjlto obtain the BIOS DSDT from the registry under Windows. 7037102550Siwasaki 7038102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 7039102550Siwasakidescriptors where an invalid AML sequence was created. 7040102550Siwasaki 7041114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 7042114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 7043114237Snjlcausing reduction conflicts. 7044102550Siwasaki 7045104470SiwasakiFixed a problem where the Ones opcode could get converted to a 7046193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 7047126372Snjlwas expected. The 64-bit value is now truncated to the correct 7048126372Snjlsize with the correct value. 7049102550Siwasaki 7050102550Siwasaki 7051167802Sjkim 7052102550Siwasaki---------------------------------------- 7053102550Siwasaki02 July 2002. Summary of changes for this release. 7054102550Siwasaki 7055102550Siwasaki 7056102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 7057102550Siwasaki 7058114237SnjlThe Table Manager code has been restructured to add several new 7059114237Snjlfeatures. Tables that are not required by the core subsystem 7060114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 7061193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 7062126372Snjlrequested. The AcpiOsTableOverride interface is now called for 7063126372Snjleach table that is loaded by the subsystem in order to allow the 7064126372Snjlhost to override any table it chooses. Previously, only the DSDT 7065126372Snjlcould be overridden. Added one new files, tbrsdt.c and 7066114237Snjltbgetall.c. 7067102550Siwasaki 7068193267SjkimFixed a problem with the conversion of internal package objects to 7069126372Snjlexternal objects (when a package is returned from a control 7070114237Snjlmethod.) The return buffer length was set to zero instead of the 7071114237Snjlproper length of the package object. 7072102550Siwasaki 7073104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 7074114237Snjloperators when passing reference arguments to control methods. A 7075114237Snjlnew type of Reference object is used internally for references 7076114237Snjlproduced by the RefOf operator. 7077102550Siwasaki 7078193267SjkimAdded additional error messages in the Resource Manager to explain 7079126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 7080102550Siwasaki 7081104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 7082193267Sjkimfiner granularity initialization sequence. These two calls should 7083126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 7084114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 7085114237Snjlsame. 7086102550Siwasaki 7087102550Siwasaki 7088102550Siwasaki2) Linux 7089102550Siwasaki 7090114237SnjlUpdated the ACPI utilities module to understand the new style of 7091193267Sjkimfully resolved package objects that are now returned from the core 7092126372Snjlsubsystem. This eliminates errors of the form: 7093102550Siwasaki 7094102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 7095102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 7096102550Siwasaki Invalid element in package (not a device reference) 7097102550Siwasaki 7098102550SiwasakiThe method evaluation utility uses the new buffer allocation 7099102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 7100102550Siwasaki 7101102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 7102167802Sjkim 7103114237SnjlController before the namespace has been fully initialized, which 7104114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 7105114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 7106114237Snjllimited testing was performed of the added functionality.) 7107102550Siwasaki 7108102550SiwasakiFixed memory leaks in the EC driver. 7109102550Siwasaki 7110102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 7111102550Siwasaki 7112114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 7113114237Snjlno longer needed since acpi_evaluate_object can optionally 7114104470Siwasakiallocate memory for the return object. 7115102550Siwasaki 7116193267SjkimImplemented fix for keyboard hang when getting battery readings on 7117126372Snjlsome systems (Stephen White) 7118102550Siwasaki 7119102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 7120102550Siwasaki 7121114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 7122114237Snjlsupport 7123102550Siwasaki 7124102550Siwasaki---------------------------------------- 7125102550Siwasaki11 June 2002. Summary of changes for this release. 7126102550Siwasaki 7127102550Siwasaki 7128102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 7129102550Siwasaki 7130104470SiwasakiFixed a reported problem where constants such as Zero and One 7131114237Snjlappearing within _PRT packages were not handled correctly within 7132114237Snjlthe resource manager code. Originally reported against the ASL 7133114237Snjlcompiler because the code generator now optimizes integers to 7134193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 7135126372SnjlThe _PRT code now handles all AML constant opcodes correctly 7136126372Snjl(Zero, One, Ones, Revision). 7137102550Siwasaki 7138102550SiwasakiFixed a problem with the Concatenate operator in the AML 7139193267Sjkiminterpreter where a buffer result object was incorrectly marked as 7140126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 7141102550Siwasaki 7142104470SiwasakiAll package sub-objects are now fully resolved before they are 7143114237Snjlreturned from the external ACPI interfaces. This means that name 7144114237Snjlstrings are resolved to object handles, and constant operators 7145114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 7146102550Siwasaki 7147102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 7148104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 7149104470Siwasakiwithin the AML stream. This has simplified and reduced the 7150104470Siwasakigenerated code size of the subsystem by eliminating about 10 7151104470Siwasakiswitch statements for these constants (which previously were 7152193267Sjkimcontained in Reference objects.) The complicating issues are that 7153126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 7154193267Sjkimoptional target operands and stores to constants are defined to be 7155126372Snjlno-ops. 7156102550Siwasaki 7157193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7158126372Snjlbelow. These are the code and data sizes for the acpica.lib 7159114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7160114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7161114237Snjlversion of the code includes the debug output trace mechanism and 7162193267Sjkimhas a larger code and data size. Note that these values will vary 7163126372Snjldepending on the efficiency of the compiler and the compiler 7164114237Snjloptions used during generation. 7165102550Siwasaki 7166102550Siwasaki Previous Release 7167104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7168104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7169102550Siwasaki Current Release: 7170104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7171104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7172102550Siwasaki 7173102550Siwasaki 7174102550Siwasaki2) Linux 7175102550Siwasaki 7176167802Sjkim 7177104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 7178104470Siwasakibridges (Bjorn Helgaas). 7179102550Siwasaki 7180102550Siwasaki 7181102550Siwasaki3) iASL Compiler Version X2046: 7182102550Siwasaki 7183193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 7184126372Snjlcontrol method with one argument. There are no arguments, and 7185114237Snjl_DDN does not have to be a control method. 7186102550Siwasaki 7187114237SnjlFixed a problem with the Linux version of the compiler where the 7188114237Snjlsource lines printed with error messages were the wrong lines. 7189114237SnjlThis turned out to be the "LF versus CR/LF" difference between 7190114237SnjlWindows and Unix. This appears to be the longstanding issue 7191114237Snjlconcerning listing output and error messages. 7192102550Siwasaki 7193114237SnjlFixed a problem with the Linux version of compiler where opcode 7194114237Snjlnames within error messages were wrong. This was caused by a 7195114237Snjlslight difference in the output of the Flex tool on Linux versus 7196114237SnjlWindows. 7197102550Siwasaki 7198193267SjkimFixed a problem with the Linux compiler where the hex output files 7199126372Snjlcontained some garbage data caused by an internal buffer overrun. 7200102550Siwasaki 7201102550Siwasaki 7202102550Siwasaki---------------------------------------- 7203102550Siwasaki17 May 2002. Summary of changes for this release. 7204102550Siwasaki 7205102550Siwasaki 7206102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 7207102550Siwasaki 7208102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 7209104470SiwasakiOmniBook where the FADT revision number and the table size are 7210193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 7211126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 7212126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 7213126372Snjlby the revision number. Although this is a BIOS bug, this is a 7214126372Snjlcase where the workaround is simple enough and with no side 7215126372Snjleffects, so it seemed prudent to add it. A warning message is 7216126372Snjlissued, however. 7217102550Siwasaki 7218193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 7219126372Snjl- the FADT and FACS, as well as consistency checks between the 7220114237Snjlrevision number and the table size. 7221102550Siwasaki 7222114237SnjlFixed a reported problem in the table override support where the 7223114237Snjlnew table pointer was incorrectly treated as a physical address 7224114237Snjlinstead of a logical address. 7225102550Siwasaki 7226114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 7227114237Snjlwith more descriptive codes. 7228102550Siwasaki 7229193267SjkimFixed a problem where an exception would occur if an ASL Field was 7230126372Snjldefined with no named Field Units underneath it (used by some 7231114237Snjlindex fields). 7232102550Siwasaki 7233193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7234126372Snjlbelow. These are the code and data sizes for the acpica.lib 7235126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7236126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7237126372Snjlversion of the code includes the debug output trace mechanism and 7238193267Sjkimhas a larger code and data size. Note that these values will vary 7239126372Snjldepending on the efficiency of the compiler and the compiler 7240126372Snjloptions used during generation. 7241102550Siwasaki 7242102550Siwasaki Previous Release 7243104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7244104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7245102550Siwasaki Current Release: 7246104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7247104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7248102550Siwasaki 7249102550Siwasaki 7250102550Siwasaki 7251102550Siwasaki2) Linux 7252102550Siwasaki 7253114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 7254114237Snjl(Paul D. and Dominik Brodowski) 7255102550Siwasaki 7256102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 7257102550Siwasaki 7258102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 7259102550Siwasaki 7260102550SiwasakiFix "MHz" typo (Dominik Brodowski) 7261102550Siwasaki 7262102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 7263102550Siwasaki 7264102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 7265102550Siwasaki 7266102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 7267102550Siwasaki 7268102550Siwasaki3) iASL Compiler Version X2044: 7269102550Siwasaki 7270193267SjkimImplemented error checking for the string used in the EISAID macro 7271193267Sjkim(Usually used in the definition of the _HID object.) The code now 7272126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 7273126372Snjluppercase letters and 4 hex digits. 7274102550Siwasaki 7275102550SiwasakiIf a raw string is used in the definition of the _HID object 7276102550Siwasaki(instead of the EISAID macro), the string must contain all 7277114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 7278114237Snjlof the asterisk.) 7279102550Siwasaki 7280114237SnjlImplemented checking for invalid use of ACPI reserved names for 7281114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 7282114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 7283114237SnjlPreviously, this check was only performed for control methods. 7284102550Siwasaki 7285114237SnjlImplemented an additional check on the Name operator to emit an 7286114237Snjlerror if a reserved name that must be implemented in ASL as a 7287114237Snjlcontrol method is used. We know that a reserved name must be a 7288114237Snjlmethod if it is defined with input arguments. 7289102550Siwasaki 7290193267SjkimThe warning emitted when a namespace object reference is not found 7291126372Snjlduring the cross reference phase has been changed into an error. 7292193267SjkimThe "External" directive should be used for names defined in other 7293126372Snjlmodules. 7294102550Siwasaki 7295102550Siwasaki 7296102550Siwasaki4) Tools and Utilities 7297102550Siwasaki 7298114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 7299114237Snjltested. 7300102550Siwasaki 7301193267SjkimFixed a problem with the output of both acpidump and adump16 where 7302126372Snjlthe indentation of closing parentheses and brackets was not 7303167802Sjkim 7304114237Snjlaligned properly with the parent block. 7305102550Siwasaki 7306102550Siwasaki 7307102550Siwasaki---------------------------------------- 7308102550Siwasaki03 May 2002. Summary of changes for this release. 7309102550Siwasaki 7310102550Siwasaki 7311102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 7312102550Siwasaki 7313114237SnjlAdded support a new OSL interface that allows the host operating 7314167802Sjkim 7315114237Snjlsystem software to override the DSDT found in the firmware - 7316193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 7317126372Snjlversion of the firmware DSDT and replace it with a different one 7318126372Snjlif desired. 7319102550Siwasaki 7320114237SnjlAdded new external interfaces for accessing ACPI registers from 7321114237Snjldevice drivers and other system software - AcpiGetRegister and 7322114237SnjlAcpiSetRegister. This was simply an externalization of the 7323114237Snjlexisting AcpiHwBitRegister interfaces. 7324102550Siwasaki 7325104470SiwasakiFixed a regression introduced in the previous build where the 7326104470SiwasakiASL/AML CreateField operator always returned an error, 7327102550Siwasaki"destination must be a NS Node". 7328102550Siwasaki 7329114237SnjlExtended the maximum time (before failure) to successfully enable 7330114237SnjlACPI mode to 3 seconds. 7331102550Siwasaki 7332193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7333126372Snjlbelow. These are the code and data sizes for the acpica.lib 7334126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7335126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7336126372Snjlversion of the code includes the debug output trace mechanism and 7337193267Sjkimhas a larger code and data size. Note that these values will vary 7338126372Snjldepending on the efficiency of the compiler and the compiler 7339126372Snjloptions used during generation. 7340102550Siwasaki 7341102550Siwasaki Previous Release 7342104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 7343104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 7344102550Siwasaki Current Release: 7345104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7346104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7347102550Siwasaki 7348102550Siwasaki 7349102550Siwasaki2) Linux 7350102550Siwasaki 7351104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 7352193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 7353126372Snjlone still hangs when testing the LAPIC timer. 7354102550Siwasaki 7355114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 7356114237Snjlname. 7357102550Siwasaki 7358102550SiwasakiAdded warning on boot for Presario 711FR. 7359102550Siwasaki 7360102550SiwasakiSleep improvements (Pavel Machek) 7361102550Siwasaki 7362102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 7363102550Siwasaki 7364102550SiwasakiIA64: Fixed memory map functions (JI Lee) 7365102550Siwasaki 7366102550Siwasaki 7367102550Siwasaki3) iASL Compiler Version X2043: 7368102550Siwasaki 7369114237SnjlAdded support to allow the compiler to be integrated into the MS 7370114237SnjlVC++ development environment for one-button compilation of single 7371114237Snjlfiles or entire projects -- with error-to-source-line mapping. 7372102550Siwasaki 7373104470SiwasakiImplemented support for compile-time constant folding for the 7374104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 7375104470Siwasakispecification. This allows the ASL writer to use expressions 7376104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 7377114237Snjlevaluate to constants at compile time and will also simplify the 7378114237Snjlemitted AML in any such sub-expressions that can be folded 7379104470Siwasaki(evaluated at compile-time.) This increases the size of the 7380104470Siwasakicompiler significantly because a portion of the ACPI CA AML 7381104470Siwasakiinterpreter is included within the compiler in order to pre- 7382104470Siwasakievaluate constant expressions. 7383102550Siwasaki 7384114237Snjl 7385102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 7386114237Snjlcompiler to fault. (This macro is used in conjunction with the 7387114237Snjl_STR reserved name.) 7388102550Siwasaki 7389114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 7390114237SnjlOnes opcodes where possible to further reduce the size of integer 7391114237Snjlconstants and thus reduce the overall size of the generated AML 7392114237Snjlcode. 7393102550Siwasaki 7394193267SjkimImplemented error checking for new reserved terms for ACPI version 7395126372Snjl2.0A. 7396102550Siwasaki 7397104470SiwasakiImplemented the -qr option to display the current list of ACPI 7398104470Siwasakireserved names known to the compiler. 7399102550Siwasaki 7400104470SiwasakiImplemented the -qc option to display the current list of ASL 7401104470Siwasakioperators that are allowed within constant expressions and can 7402193267Sjkimtherefore be folded at compile time if the operands are constants. 7403102550Siwasaki 7404102550Siwasaki 7405102550Siwasaki4) Documentation 7406102550Siwasaki 7407193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 7408126372Snjland memory allocation model options. 7409102550Siwasaki 7410114237SnjlUpdated the iASL Compiler User Reference to apply new format and 7411114237Snjladd information about new features and options. 7412102550Siwasaki 7413102550Siwasaki---------------------------------------- 7414102550Siwasaki19 April 2002. Summary of changes for this release. 7415102550Siwasaki 7416102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 7417102550Siwasaki 7418114237SnjlThe source code base for the Core Subsystem has been completely 7419114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 7420114237Snjlversions. The Lint option files used are included in the 7421114237Snjl/acpi/generate/lint directory. 7422102550Siwasaki 7423102550SiwasakiImplemented enhanced status/error checking across the entire 7424114237SnjlHardware manager subsystem. Any hardware errors (reported from 7425114237Snjlthe OSL) are now bubbled up and will abort a running control 7426114237Snjlmethod. 7427102550Siwasaki 7428167802Sjkim 7429114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 7430114237Snjlwas stored only with control method nodes, causing a fault when 7431114237Snjlnon-control method code was executed during table loading. The 7432114237Snjlsolution implemented uses a global variable to indicate table 7433114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 7434114237Snjlnot support mixed integer widths across different ACPI tables 7435114237Snjl(DSDT, SSDT). 7436102550Siwasaki 7437114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 7438114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 7439114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 7440114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 7441193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 7442193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 7443126372Snjlclarify this issue. 7444102550Siwasaki 7445104470SiwasakiFixed a problem with the SystemMemory operation region handler 7446104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 7447104470Siwasakispecified access width was larger than a byte. This caused 7448104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 7449193267Sjkimaccessed with the width specified. On systems that do not support 7450193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 7451126372Snjlalignment before proceeding in order to avoid an AML-caused 7452126372Snjlalignment fault within the kernel. 7453102550Siwasaki 7454102550Siwasaki 7455114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 7456114237Snjlof the 4-byte Irq field was extracted. 7457102550Siwasaki 7458114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 7459114237Snjlfunction was out of date and required a rewrite. 7460114237Snjl 7461193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7462126372Snjlbelow. These are the code and data sizes for the acpica.lib 7463126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7464126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7465126372Snjlversion of the code includes the debug output trace mechanism and 7466193267Sjkimhas a larger code and data size. Note that these values will vary 7467126372Snjldepending on the efficiency of the compiler and the compiler 7468126372Snjloptions used during generation. 7469102550Siwasaki 7470102550Siwasaki Previous Release 7471104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 7472104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 7473102550Siwasaki Current Release: 7474104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 7475104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 7476102550Siwasaki 7477102550Siwasaki 7478102550Siwasaki2) Linux 7479102550Siwasaki 7480102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 7481102550Siwasaki 7482102550Siwasaki 7483102550Siwasaki3) iASL Compiler Version X2042: 7484102550Siwasaki 7485104470SiwasakiImplemented an additional compile-time error check for a field 7486104470Siwasakiunit whose size + minimum access width would cause a run-time 7487114237Snjlaccess beyond the end-of-region. Previously, only the field size 7488114237Snjlitself was checked. 7489102550Siwasaki 7490104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 7491104470Siwasakiobject in preparation for compile-time evaluation of the type 7492104470Siwasaki3/4/5 ASL operators. 7493102550Siwasaki 7494102550Siwasaki 7495102550Siwasaki---------------------------------------- 7496102550SiwasakiSummary of changes for this release: 03_29_02 7497102550Siwasaki 7498102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 7499102550Siwasaki 7500104470SiwasakiImplemented support for late evaluation of TermArg operands to 7501193267SjkimBuffer and Package objects. This allows complex expressions to be 7502126372Snjlused in the declarations of these object types. 7503102550Siwasaki 7504193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 7505126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 7506126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 7507193267Sjkimthe field is returned as a buffer only if the field is larger than 7508126372Snjl64 bits. The TableRevision is now considered when making this 7509126372Snjlconversion to avoid incompatibility with existing ASL code. 7510102550Siwasaki 7511104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 7512114237Snjlallows an RSDP with either a logical or physical address. With 7513114237Snjlthis support, the host OS can now override all ACPI tables with 7514114237Snjlone logical RSDP. Includes implementation of "typed" pointer 7515114237Snjlsupport to allow a common data type for both physical and logical 7516114237Snjlpointers internally. This required a change to the 7517114237SnjlAcpiOsGetRootPointer interface. 7518102550Siwasaki 7519193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 7520193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 7521126372Snjlmapped I/O for these ACPI features. 7522102550Siwasaki 7523102550SiwasakiInitialization now ignores not only non-required tables (All 7524114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 7525114237Snjlnot validate the table headers of unrecognized tables. 7526102550Siwasaki 7527102550SiwasakiFixed a problem where a notify handler could only be 7528102550Siwasakiinstalled/removed on an object of type Device. All "notify" 7529167802Sjkim 7530102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 7531102550SiwasakiThermal. 7532102550Siwasaki 7533114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 7534193267Sjkimcritical information is returned when this debug level is enabled. 7535102550Siwasaki 7536193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7537126372Snjlbelow. These are the code and data sizes for the acpica.lib 7538126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7539126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7540126372Snjlversion of the code includes the debug output trace mechanism and 7541193267Sjkimhas a larger code and data size. Note that these values will vary 7542126372Snjldepending on the efficiency of the compiler and the compiler 7543126372Snjloptions used during generation. 7544102550Siwasaki 7545102550Siwasaki Previous Release 7546104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 7547104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 7548102550Siwasaki Current Release: 7549104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 7550104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 7551102550Siwasaki 7552102550Siwasaki 7553102550Siwasaki2) Linux: 7554102550Siwasaki 7555114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 7556114237Snjl2.0-based processor performance control (e.g. Intel(R) 7557114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 7558114237Snjlthe Intel "applet" interface are not supported through this. The 7559114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 7560114237Snjl[Note that basic policy for controlling performance state 7561114237Snjltransitions will be included in the next version of ospmd.] The 7562114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 7563114237Snjlerrata handling underwent a complete overhaul (big thanks to 7564114237SnjlDominik Brodowski). 7565102550Siwasaki 7566114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 7567114237Snjlbased devices in the ACPI namespace are now dynamically bound 7568114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 7569114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 7570114237Snjlsubordinate PCI bridges. 7571102550Siwasaki 7572104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 7573104470Siwasakientries defined underneath PCI bridges. 7574102550Siwasaki 7575104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 7576104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 7577102550Siwasaki 7578114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 7579114237Snjl(acpi.c, mpparse.c) -- stay tuned. 7580102550Siwasaki 7581102550SiwasakiAdded back visual differentiation between fixed-feature and 7582114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 7583114237Snjlbutton/power/PWRF) to simplify button identification. 7584102550Siwasaki 7585114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 7586114237Snjlany "_THIS_MODULE defined but not used" messages. 7587102550Siwasaki 7588102550SiwasakiCan now shut down the system using "magic sysrq" key. 7589102550Siwasaki 7590102550Siwasaki 7591102550Siwasaki3) iASL Compiler version 2041: 7592102550Siwasaki 7593104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 7594104470Siwasakiconstants were not reported. 7595102550Siwasaki 7596193267SjkimImplemented a fix for the General Register template Address field. 7597126372SnjlThis field was 8 bits when it should be 64. 7598102550Siwasaki 7599193267SjkimFixed a problem where errors/warnings were no longer being emitted 7600126372Snjlwithin the listing output file. 7601102550Siwasaki 7602114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 7603114237Snjlexactly 4 characters, alphanumeric only. 7604102550Siwasaki 7605102550Siwasaki 7606102550Siwasaki 7607102550Siwasaki 7608102550Siwasaki---------------------------------------- 7609102550SiwasakiSummary of changes for this release: 03_08_02 7610102550Siwasaki 7611102550Siwasaki 7612102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 7613102550Siwasaki 7614114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 7615193267Sjkimkeyword could cause an interpreter error due to attempting to read 7616126372Snjlor write beyond the end of the parent Operation Region. 7617102550Siwasaki 7618193267SjkimFixed a problem in the SystemMemory Operation Region handler where 7619126372Snjlan attempt was made to map memory beyond the end of the region. 7620126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 7621126372Snjlerrors on some Linux systems. 7622102550Siwasaki 7623114237SnjlFixed a problem where the interpreter/namespace "search to root" 7624114237Snjlalgorithm was not functioning for some object types. Relaxed the 7625114237Snjlinternal restriction on the search to allow upsearches for all 7626114237Snjlexternal object types as well as most internal types. 7627102550Siwasaki 7628102550Siwasaki 7629102550Siwasaki2) Linux: 7630102550Siwasaki 7631193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 7632102550Siwasaki 7633193267SjkimWriting to the processor limit interface should now work. "echo 1" 7634126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 7635167802Sjkim 7636126372Snjldefault. 7637102550Siwasaki 7638102550Siwasaki 7639102550Siwasaki3) ASL compiler: 7640102550Siwasaki 7641102550SiwasakiFixed segfault on Linux version. 7642102550Siwasaki 7643102550Siwasaki 7644102550Siwasaki---------------------------------------- 7645102550SiwasakiSummary of changes for this release: 02_25_02 7646102550Siwasaki 7647102550Siwasaki1) ACPI CA Core Subsystem: 7648102550Siwasaki 7649102550Siwasaki 7650102550SiwasakiFixed a problem where the GPE bit masks were not initialized 7651102550Siwasakiproperly, causing erratic GPE behavior. 7652102550Siwasaki 7653193267SjkimImplemented limited support for multiple calling conventions. The 7654126372Snjlcode can be generated with either the VPL (variable parameter 7655114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 7656114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 7657114237Snjlwhen generated with FPL. 7658102550Siwasaki 7659102550Siwasaki 7660102550Siwasaki2) Linux 7661102550Siwasaki 7662114237SnjlRe-add some /proc/acpi/event functionality that was lost during 7663114237Snjlthe rewrite 7664102550Siwasaki 7665193267SjkimResolved issue with /proc events for fixed-feature buttons showing 7666126372Snjlup as the system device. 7667102550Siwasaki 7668193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 7669102550Siwasaki 7670114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 7671102550Siwasaki 7672114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 7673102550Siwasaki 7674104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 7675104470Siwasakihysterisis. 7676102550Siwasaki 7677102550SiwasakiRestructured PRT support. 7678102550Siwasaki 7679102550Siwasaki 7680102550Siwasaki---------------------------------------- 7681102550SiwasakiSummary of changes for this label: 02_14_02 7682102550Siwasaki 7683102550Siwasaki 7684102550Siwasaki1) ACPI CA Core Subsystem: 7685102550Siwasaki 7686114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 7687114237SnjlFADT tables. 7688102550Siwasaki 7689114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 7690193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 7691193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 7692126372Snjltree. 7693102550Siwasaki 7694114237SnjlAll C macros defined within the subsystem have been prefixed with 7695114237Snjl"ACPI_" to avoid collision with other system include files. 7696102550Siwasaki 7697193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 7698126372Snjlit is never used and causes lint warnings for ignoring the return 7699126372Snjlvalue. 7700102550Siwasaki 7701104470SiwasakiAdded error checking to all internal mutex acquire and release 7702104470Siwasakicalls. Although a failure from one of these interfaces is 7703104470Siwasakiprobably a fatal system error, these checks will cause the 7704114237Snjlimmediate abort of the currently executing method or interface. 7705102550Siwasaki 7706114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 7707193267Sjkimfault. This was a side effect of the deployment of the new memory 7708126372Snjlallocation model. 7709102550Siwasaki 7710193267SjkimFixed a couple of problems with the Global Lock support introduced 7711193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 7712126372Snjlbeing overwritten with the FACS signature and clobbering the 7713126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 7714126372Snjlunmapped after construction of the "common" FACS, preventing 7715126372Snjlaccess to the actual Global Lock field within it. The "common" 7716126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 7717126372Snjlis used simply as a global. 7718102550Siwasaki 7719193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7720126372Snjlbelow. These are the code and data sizes for the acpica.lib 7721126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7722126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7723126372Snjlversion of the code includes the debug output trace mechanism and 7724193267Sjkimhas a larger code and data size. Note that these values will vary 7725126372Snjldepending on the efficiency of the compiler and the compiler 7726126372Snjloptions used during generation. 7727102550Siwasaki 7728102550Siwasaki Previous Release (02_07_01) 7729104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 7730104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 7731102550Siwasaki Current Release: 7732104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 7733104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 7734102550Siwasaki 7735102550Siwasaki 7736102550Siwasaki2) Linux 7737102550Siwasaki 7738102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 7739102550Siwasakichanges described above. 7740102550Siwasaki 7741114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 7742114237Snjlproper poll functionality. 7743102550Siwasaki 7744102550SiwasakiFixed and restructured power management (acpi_bus). 7745102550Siwasaki 7746193267SjkimOnly create /proc "view by type" when devices of that class exist. 7747102550Siwasaki 7748104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 7749102550Siwasaki 7750102550SiwasakiImproved thermal zone code. 7751102550Siwasaki 7752102550Siwasaki 7753102550Siwasaki3) ASL Compiler, version X2039: 7754102550Siwasaki 7755114237Snjl 7756114237SnjlImplemented the new compiler restriction on ASL String hex/octal 7757193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 7758126372Snjlvalue is used. (This will require an ACPI 2.0 specification 7759126372Snjlchange.) 7760102550Siwasaki 7761193267SjkimAML object labels that are output to the optional C and ASM source 7762126372Snjlare now prefixed with both the ACPI table signature and table ID 7763126372Snjlto help guarantee uniqueness within a large BIOS project. 7764102550Siwasaki 7765102550Siwasaki 7766102550Siwasaki---------------------------------------- 7767102550SiwasakiSummary of changes for this label: 02_01_02 7768102550Siwasaki 7769102550Siwasaki1) ACPI CA Core Subsystem: 7770102550Siwasaki 7771114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 7772114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 7773114237Snjlother changes for ACPI 2.0 support are complete. With 7774193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 7775126372SnjlACPI 2.0 support has been implemented with almost no additional 7776126372Snjlcost in terms of code and data size. 7777102550Siwasaki 7778114237SnjlImplemented a new mechanism for allocation of return buffers. If 7779114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 7780114237Snjlbe allocated on behalf of the caller. Consolidated all return 7781114237Snjlbuffer validation and allocation to a common procedure. Return 7782193267Sjkimbuffers will be allocated via the primary OSL allocation interface 7783193267Sjkimsince it appears that a separate pool is not needed by most users. 7784126372SnjlIf a separate pool is required for these buffers, the caller can 7785126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 7786102550Siwasaki 7787102550SiwasakiImplemented support for string operands within the DerefOf 7788102550Siwasakioperator. 7789102550Siwasaki 7790114237SnjlRestructured the Hardware and Event managers to be table driven, 7791114237Snjlsimplifying the source code and reducing the amount of generated 7792114237Snjlcode. 7793102550Siwasaki 7794102550SiwasakiSplit the common read/write low-level ACPI register bitfield 7795104470Siwasakiprocedure into a separate read and write, simplifying the code 7796104470Siwasakiconsiderably. 7797102550Siwasaki 7798114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 7799114237Snjlused only a handful of times and didn't have enough critical mass 7800193267Sjkimfor a separate interface. Replaced with a common calloc procedure 7801126372Snjlin the core. 7802102550Siwasaki 7803104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 7804104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 7805114237SnjlReorganized the GPE information and shrunk a large array that was 7806114237Snjloriginally large enough to hold info for all possible GPEs (256) 7807114237Snjlto simply large enough to hold all GPEs up to the largest GPE 7808114237Snjlnumber on the machine. 7809102550Siwasaki 7810114237SnjlFixed a reported problem with resource structure alignment on 64- 7811114237Snjlbit platforms. 7812102550Siwasaki 7813102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 7814102550Siwasakiinterfaces to not require any flags for the common case of 7815102550Siwasakienabling/disabling a GPE. 7816102550Siwasaki 7817104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 7818102550Siwasaki 7819114237SnjlMost TBDs in comments within the source code have been resolved 7820114237Snjland eliminated. 7821102550Siwasaki 7822167802Sjkim 7823102550SiwasakiFixed a problem in the interpreter where a standalone parent 7824102550Siwasakiprefix (^) was not handled correctly in the interpreter and 7825102550Siwasakidebugger. 7826102550Siwasaki 7827102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 7828102550Siwasaki 7829193267SjkimImplemented Field support in the ASL Load operator. This allows a 7830126372Snjltable to be loaded from a named field, in addition to loading a 7831114237Snjltable directly from an Operation Region. 7832102550Siwasaki 7833193267SjkimImplemented timeout and handle support in the external Global Lock 7834126372Snjlinterfaces. 7835102550Siwasaki 7836114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 7837193267Sjkimlonger being generated correctly during the dump of named objects. 7838102550Siwasaki 7839102550SiwasakiModified the AML debugger to give a full display of if/while 7840102550Siwasakipredicates instead of just one AML opcode at a time. (The 7841193267Sjkimpredicate can have several nested ASL statements.) The old method 7842126372Snjlwas confusing during single stepping. 7843102550Siwasaki 7844193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7845126372Snjlbelow. These are the code and data sizes for the acpica.lib 7846114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7847114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7848114237Snjlversion of the code includes the debug output trace mechanism and 7849193267Sjkimhas a larger code and data size. Note that these values will vary 7850126372Snjldepending on the efficiency of the compiler and the compiler 7851114237Snjloptions used during generation. 7852102550Siwasaki 7853102550Siwasaki Previous Release (12_18_01) 7854114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 7855114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 7856102550Siwasaki Current Release: 7857114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 7858114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 7859102550Siwasaki 7860102550Siwasaki2) Linux 7861102550Siwasaki 7862104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 7863104470Siwasakidriver) 7864102550Siwasaki 7865102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 7866102550Siwasaki 7867102550SiwasakiNew thermal policy (Thermal driver) 7868102550Siwasaki 7869102550SiwasakiMany updates to /proc 7870102550Siwasaki 7871102550SiwasakiBattery "low" event support (Battery driver) 7872102550Siwasaki 7873104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 7874102550Siwasaki 7875104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 7876102550Siwasaki 7877102550SiwasakiMenuconfig options redesigned 7878102550Siwasaki 7879102550Siwasaki3) ASL Compiler, version X2037: 7880102550Siwasaki 7881193267SjkimImplemented several new output features to simplify integration of 7882126372SnjlAML code into firmware: 1) Output the AML in C source code with 7883193267Sjkimlabels for each named ASL object. The original ASL source code 7884193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 7885126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 7886126372Snjlraw hex table form, in either C or ASM. 7887102550Siwasaki 7888102550SiwasakiImplemented support for optional string parameters to the 7889102550SiwasakiLoadTable operator. 7890102550Siwasaki 7891104470SiwasakiCompleted support for embedded escape sequences within string 7892114237Snjlliterals. The compiler now supports all single character escapes 7893114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 7894114237Snjlnull byte into a string literal (via the hex/octal escape) causes 7895114237Snjlthe string to be immediately terminated. A warning is issued. 7896102550Siwasaki 7897104470SiwasakiFixed a problem where incorrect AML was generated for the case 7898104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 7899102550Siwasaki 7900102550Siwasaki) with no trailing name segments. 7901102550Siwasaki 7902102550SiwasakiThe compiler has been successfully generated with a 64-bit C 7903102550Siwasakicompiler. 7904102550Siwasaki 7905102550Siwasaki 7906102550Siwasaki 7907102550Siwasaki 7908102550Siwasaki---------------------------------------- 7909102550SiwasakiSummary of changes for this label: 12_18_01 7910102550Siwasaki 7911102550Siwasaki1) Linux 7912102550Siwasaki 7913114237SnjlEnhanced blacklist with reason and severity fields. Any table's 7914114237Snjlsignature may now be used to identify a blacklisted system. 7915102550Siwasaki 7916114237SnjlCall _PIC control method to inform the firmware which interrupt 7917114237Snjlmodel the OS is using. Turn on any disabled link devices. 7918102550Siwasaki 7919102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 7920102550Siwasaki 7921102550Siwasaki 2) ACPI CA Core Subsystem: 7922102550Siwasaki 7923193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 7924126372Snjlwhile loop) 7925102550Siwasaki 7926102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 7927102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 7928193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 7929193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 7930126372Snjl2.0 task is support for the String data type in the DerefOf 7931193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 7932126372Snjlwas lost if the caller had to actually wait for the mutex. 7933102550Siwasaki 7934104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 7935102550Siwasaki 7936193267SjkimCompleted implementation of the external Global Lock interfaces -- 7937126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 7938126372SnjlHandler parameters were added. 7939102550Siwasaki 7940102550SiwasakiCompleted another pass at removing warnings and issues when 7941114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 7942114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 7943114237Snjladd and subtract (diff) macros have changed considerably. 7944102550Siwasaki 7945167802Sjkim 7946114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 7947114237Snjl64-bit platforms, 32-bits on all others. This type is used 7948193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 7949126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 7950126372Snjland AcpiOsCallocate. 7951102550Siwasaki 7952102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 7953102550Siwasaki 7954193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7955126372Snjlbelow. These are the code and data sizes for the acpica.lib 7956114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7957114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7958114237Snjlversion of the code includes the debug output trace mechanism and 7959114237Snjlhas a larger code and data size. Note that these values will vary 7960114237Snjldepending on the efficiency of the compiler and the compiler 7961114237Snjloptions used during generation. 7962102550Siwasaki 7963102550Siwasaki Previous Release (12_05_01) 7964114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 7965114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 7966102550Siwasaki Current Release: 7967114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 7968114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 7969102550Siwasaki 7970102550Siwasaki 3) ASL Compiler, version X2034: 7971102550Siwasaki 7972114237SnjlNow checks for (and generates an error if detected) the use of a 7973114237SnjlBreak or Continue statement without an enclosing While statement. 7974102550Siwasaki 7975167802Sjkim 7976102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 7977102550Siwasakicompiler. 7978102550Siwasaki 7979102550Siwasaki ---------------------------------------- 7980102550SiwasakiSummary of changes for this label: 12_05_01 7981102550Siwasaki 7982102550Siwasaki 1) ACPI CA Core Subsystem: 7983102550Siwasaki 7984102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 7985104470Siwasakioperator creates a new copy of an object (and is also used to 7986193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 7987102550Siwasaki 7988102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 7989102550Siwasakiimplemented. The change is that performing a SizeOf on a 7990114237Snjlreference object causes an automatic dereference of the object to 7991114237Snjltha actual value before the size is evaluated. This behavior was 7992114237Snjlundefined in ACPI 1.0. 7993102550Siwasaki 7994114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 7995114237Snjlhave been implemented. The interrupt polarity and mode are now 7996114237Snjlindependently set. 7997102550Siwasaki 7998114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 7999114237Snjlappearing in Package objects were not properly converted to 8000114237Snjlintegers when the internal Package was converted to an external 8001114237Snjlobject (via the AcpiEvaluateObject interface.) 8002102550Siwasaki 8003114237SnjlFixed a problem with the namespace object deletion mechanism for 8004114237Snjlobjects created by control methods. There were two parts to this 8005193267Sjkimproblem: 1) Objects created during the initialization phase method 8006193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 8007126372Snjlto track objects was broken. 8008102550Siwasaki 8009114237SnjlFixed a problem where the use of the ASL Scope operator within a 8010114237Snjlcontrol method would result in an invalid opcode exception. 8011102550Siwasaki 8012114237SnjlFixed a problem introduced in the previous label where the buffer 8013114237Snjllength required for the _PRT structure was not being returned 8014114237Snjlcorrectly. 8015102550Siwasaki 8016193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8017126372Snjlbelow. These are the code and data sizes for the acpica.lib 8018114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8019114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8020114237Snjlversion of the code includes the debug output trace mechanism and 8021193267Sjkimhas a larger code and data size. Note that these values will vary 8022126372Snjldepending on the efficiency of the compiler and the compiler 8023114237Snjloptions used during generation. 8024102550Siwasaki 8025102550Siwasaki Previous Release (11_20_01) 8026114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8027114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8028102550Siwasaki 8029102550Siwasaki Current Release: 8030114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8031114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8032102550Siwasaki 8033102550Siwasaki 2) Linux: 8034102550Siwasaki 8035102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 8036102550Siwasaki 8037104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 8038114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 8039114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 8040114237Snjlentries are treated as if they were static (not yet 8041114237Snjlreconfigurable). Architecture- specific code to use this data is 8042114237Snjlabsent on IA32 but should be available shortly. 8043102550Siwasaki 8044114237SnjlChanged the initialization sequence to start the ACPI interpreter 8045114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 8046114237Snjlin init/main.c. This ordering is required to support PRT and 8047114237Snjlfacilitate other (future) enhancement. A side effect is that the 8048193267SjkimACPI bus driver and certain device drivers can no longer be loaded 8049126372Snjlas modules. 8050102550Siwasaki 8051104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 8052104470SiwasakiRouting support to be included without the ACPI Bus and other 8053104470Siwasakidevice drivers. 8054102550Siwasaki 8055102550Siwasaki 3) ASL Compiler, version X2033: 8056102550Siwasaki 8057102550SiwasakiFixed some issues with the use of the new CopyObject and 8058102550SiwasakiDataTableRegion operators. Both are fully functional. 8059102550Siwasaki 8060102550Siwasaki ---------------------------------------- 8061102550SiwasakiSummary of changes for this label: 11_20_01 8062102550Siwasaki 8063102550Siwasaki 20 November 2001. Summary of changes for this release. 8064102550Siwasaki 8065102550Siwasaki 1) ACPI CA Core Subsystem: 8066102550Siwasaki 8067104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 8068193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 8069126372Snjlthe least-significant byte of the source to the Indexed buffer 8070126372Snjlbyte. Multiple writes are not performed. 8071102550Siwasaki 8072104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 8073104470Siwasakioperator was not recorded correctly into the field object. 8074102550Siwasaki 8075102550SiwasakiFixed a problem where ASL Event objects were created in a 8076114237Snjlsignalled state. Events are now created in an unsignalled state. 8077102550Siwasaki 8078114237SnjlThe internal object cache is now purged after table loading and 8079114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 8080114237Snjlthe assumption that object use is greatest during the parse phase 8081193267Sjkimof the entire table (versus the run-time use of individual control 8082126372Snjlmethods.) 8083102550Siwasaki 8084102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 8085102550Siwasaki 8086193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8087126372Snjlfeature development with an actual reduction in the library size. 8088126372SnjlCurrent core subsystem library sizes are shown below. These are 8089126372Snjlthe code and data sizes for the acpica.lib produced by the 8090193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8091126372Snjlany ACPI driver or OSPM code. The debug version of the code 8092126372Snjlincludes the debug output trace mechanism and has a larger code 8093126372Snjland data size. Note that these values will vary depending on the 8094126372Snjlefficiency of the compiler and the compiler options used during 8095126372Snjlgeneration. 8096102550Siwasaki 8097102550Siwasaki Previous Release (11_09_01): 8098114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8099114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8100102550Siwasaki 8101102550Siwasaki Current Release: 8102114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8103114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8104102550Siwasaki 8105102550Siwasaki 2) Linux: 8106102550Siwasaki 8107114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 8108114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 8109114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 8110114237Snjlnear future. This functionality replaces 8111114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 8112114237Snjl2.4.15-preX release. To enable this feature you must add 8113114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 8114193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 8115126372Snjlthe works... 8116102550Siwasaki 8117114237SnjlRestructured the configuration options to allow boot-time table 8118114237Snjlparsing support without inclusion of the ACPI Interpreter (and 8119114237Snjlother) code. 8120102550Siwasaki 8121193267SjkimNOTE: This release does not include fixes for the reported events, 8122126372Snjlpower-down, and thermal passive cooling issues (coming soon). 8123102550Siwasaki 8124102550Siwasaki 3) ASL Compiler: 8125102550Siwasaki 8126114237SnjlAdded additional typechecking for Fields within restricted access 8127114237SnjlOperation Regions. All fields within EC and CMOS regions must be 8128114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 8129114237Snjldeclared with the BufferAcc access type. 8130102550Siwasaki 8131114237SnjlFixed a problem where the listing file output of control methods 8132114237Snjlno longer interleaved the actual AML code with the ASL source 8133114237Snjlcode. 8134102550Siwasaki 8135102550Siwasaki 8136102550Siwasaki 8137167802Sjkim 8138102550Siwasaki---------------------------------------- 8139102550SiwasakiSummary of changes for this label: 11_09_01 8140102550Siwasaki 8141102550Siwasaki1) ACPI CA Core Subsystem: 8142102550Siwasaki 8143114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 8144193267SjkimBuffer, String, or Integer source operand that is smaller than the 8145126372Snjltarget field. In these cases, the source operand is zero-extended 8146126372Snjlto fill the target field. 8147102550Siwasaki 8148104470SiwasakiFixed a problem where a Field starting bit offset (within the 8149104470Siwasakiparent operation region) was calculated incorrectly if the 8150167802Sjkim 8151104470Siwasakialignment of the field differed from the access width. This 8152114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 8153114237Snjlpossibly other fields that use the "AccessAny" keyword. 8154102550Siwasaki 8155114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 8156114237Snjlstores through method arguments did not operate correctly. 8157102550Siwasaki 8158102550Siwasaki2) Linux: 8159102550Siwasaki 8160102550SiwasakiImplemented boot-time ACPI table parsing support 8161114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 8162114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 8163114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 8164193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 8165126372Snjlthis patch does not include the required architecture-specific 8166126372Snjlchanges required to apply this information -- subsequent patches 8167126372Snjlwill be posted for both IA32 and IA64 to achieve this. 8168102550Siwasaki 8169114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 8170114237SnjlMochel. This allows IA32 systems to transition to/from various 8171114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 8172114237Snjldriver model and power-manageable drivers will prevent its 8173114237Snjl(successful) use on most systems. 8174102550Siwasaki 8175114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 8176193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 8177126372Snjltables" option, etc. 8178102550Siwasaki 8179114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 8180114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 8181114237Snjltransactions. 8182102550Siwasaki 8183102550Siwasaki ---------------------------------------- 8184102550SiwasakiSummary of changes for this label: 11_02_01 8185102550Siwasaki 8186102550Siwasaki1) ACPI CA Core Subsystem: 8187102550Siwasaki 8188102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 8189102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 8190102550Siwasakiimplemented. 8191102550Siwasaki 8192114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 8193114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 8194193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 8195126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 8196193267Sjkimthe value parameter for the address space handler interface is now 8197193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 8198126372Snjlhandle the case where the Width parameter is 64. 8199102550Siwasaki 8200104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 8201104470Siwasakidisassembly for IndexFields was not supported correctly. 8202102550Siwasaki 8203102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 8204104470Siwasakisupported. During field access, a check is performed to ensure 8205114237Snjlthat the value written to an Index or Bank register is not out of 8206114237Snjlthe range of the register. The Index (or Bank) register is 8207114237Snjlwritten before each access to the field data. Future support will 8208114237Snjlinclude allowing individual IndexFields to be wider than the 8209114237SnjlDataRegister width. 8210102550Siwasaki 8211114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 8212114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 8213114237Snjla boundary case that occurred when a DWORD field was written to a 8214114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 8215114237Snjlinterpreter to write one datum too many. 8216102550Siwasaki 8217102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 8218114237Snjlstarting bit address of a field was incorrectly calculated if the 8219114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 8220114237SnjlQwordAcc). 8221102550Siwasaki 8222104470SiwasakiFields: Fixed a problem where forward references to individual 8223193267SjkimFieldUnits (individual Field names within a Field definition) were 8224126372Snjlnot resolved during the AML table load. 8225102550Siwasaki 8226104470SiwasakiFields: Fixed a problem where forward references from a Field 8227104470Siwasakidefinition to the parent Operation Region definition were not 8228104470Siwasakiresolved during the AML table load. 8229104470Siwasaki 8230114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 8231114237Snjlduring AML table load. 8232102550Siwasaki 8233193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 8234126372Snjlreturned an incorrect name for the root node. 8235102550Siwasaki 8236193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8237126372Snjlfeature development with an actual reduction in the library size. 8238126372SnjlCurrent core subsystem library sizes are shown below. These are 8239126372Snjlthe code and data sizes for the acpica.lib produced by the 8240193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8241126372Snjlany ACPI driver or OSPM code. The debug version of the code 8242126372Snjlincludes the debug output trace mechanism and has a larger code 8243126372Snjland data size. Note that these values will vary depending on the 8244126372Snjlefficiency of the compiler and the compiler options used during 8245126372Snjlgeneration. 8246102550Siwasaki 8247102550Siwasaki Previous Release (10_18_01): 8248114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8249114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8250102550Siwasaki 8251102550Siwasaki Current Release: 8252114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8253114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8254102550Siwasaki 8255102550Siwasaki 2) Linux: 8256102550Siwasaki 8257102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 8258102550SiwasakiMODULE_LICENSE("GPL") to all modules. 8259102550Siwasaki 8260102550Siwasaki 3) ASL Compiler version X2030: 8261102550Siwasaki 8262104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 8263104470Siwasakiflagged as errors. 8264102550Siwasaki 8265102550Siwasaki 4) Documentation: 8266102550Siwasaki 8267104470SiwasakiProgrammer Reference updated to reflect OSL and address space 8268104470Siwasakihandler interface changes described above. 8269102550Siwasaki 8270102550Siwasaki---------------------------------------- 8271102550SiwasakiSummary of changes for this label: 10_18_01 8272102550Siwasaki 8273102550SiwasakiACPI CA Core Subsystem: 8274102550Siwasaki 8275193267SjkimFixed a problem with the internal object reference count mechanism 8276126372Snjlthat occasionally caused premature object deletion. This resolves 8277126372Snjlall of the outstanding problem reports where an object is deleted 8278193267Sjkimin the middle of an interpreter evaluation. Although this problem 8279126372Snjlonly showed up in rather obscure cases, the solution to the 8280126372Snjlproblem involved an adjustment of all reference counts involving 8281126372Snjlobjects attached to namespace nodes. 8282102550Siwasaki 8283102550SiwasakiFixed a problem with Field support in the interpreter where 8284114237Snjlwriting to an aligned field whose length is an exact multiple (2 8285193267Sjkimor greater) of the field access granularity would cause an attempt 8286126372Snjlto write beyond the end of the field. 8287102550Siwasaki 8288102550SiwasakiThe top level AML opcode execution functions within the 8289102550Siwasakiinterpreter have been renamed with a more meaningful and 8290102550Siwasakiconsistent naming convention. The modules exmonad.c and 8291102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 8292102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 8293102550Siwasaki 8294114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 8295102550Siwasaki 8296114237SnjlFixed a problem where the AML debugger was causing some internal 8297114237Snjlobjects to not be deleted during subsystem termination. 8298102550Siwasaki 8299104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 8300104470Siwasakiwhere the subsystem would fault if the named object to be 8301104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 8302102550Siwasaki 8303102550SiwasakiFixed a problem with IndexFields and BankFields where the 8304114237Snjlsubsystem would fault if the index, data, or bank registers were 8305114237Snjlnot defined in the same scope as the field itself. 8306102550Siwasaki 8307104470SiwasakiAdded printf format string checking for compilers that support 8308104470Siwasakithis feature. Corrected more than 50 instances of issues with 8309104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 8310104470Siwasakithroughout the core subsystem code. 8311102550Siwasaki 8312104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 8313193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 8314126372Snjlis more than 50% implemented. 8315102550Siwasaki 8316114237SnjlEnhanced the output of the AML debugger "dump namespace" command 8317114237Snjlto output in a more human-readable form. 8318102550Siwasaki 8319114237SnjlCurrent core subsystem library code sizes are shown below. These 8320167802Sjkim 8321114237Snjlare the code and data sizes for the acpica.lib produced by the 8322193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8323126372Snjlany ACPI driver or OSPM code. The debug version of the code 8324126372Snjlincludes the full debug trace mechanism -- leading to a much 8325167802Sjkim 8326114237Snjllarger code and data size. Note that these values will vary 8327114237Snjldepending on the efficiency of the compiler and the compiler 8328114237Snjloptions used during generation. 8329102550Siwasaki 8330102550Siwasaki Previous Label (09_20_01): 8331114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 8332114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 8333102550Siwasaki 8334102550Siwasaki This Label: 8335102550Siwasaki 8336114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8337114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8338114237Snjl 8339102550SiwasakiLinux: 8340102550Siwasaki 8341104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 8342104470Siwasakiknown ASL/AML problems. 8343102550Siwasaki 8344193267SjkimEnhanced the /proc interface for the thermal zone driver and added 8345126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 8346193267Sjkimfile now includes threshold/policy information, and allows setting 8347126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 8348193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 8349126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 8350126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 8351102550Siwasaki 8352104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 8353104470Siwasakiwhen loading the control method battery driver. 8354102550Siwasaki 8355102550Siwasaki ---------------------------------------- 8356102550SiwasakiSummary of changes for this label: 09_20_01 8357102550Siwasaki 8358102550Siwasaki ACPI CA Core Subsystem: 8359102550Siwasaki 8360104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 8361104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 8362114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 8363114237Snjlsleeps.) 8364102550Siwasaki 8365104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 8366104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 8367104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 8368104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 8369102550Siwasaki 8370114237SnjlA local double-precision divide/modulo module has been added to 8371114237Snjlenhance portability to OS kernels where a 64-bit math library is 8372114237Snjlnot available. The new module is "utmath.c". 8373102550Siwasaki 8374104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 8375114237Snjlstack. Originally over 2K, the maximum stack usage is now below 8376114237Snjl2K at 1860 bytes (1.82k) 8377102550Siwasaki 8378114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 8379193267Sjkimroot table pointer was not mapped into a logical address properly. 8380102550Siwasaki 8381193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 8382126372Snjlinterpreter code for the ASL Notify operator. 8383102550Siwasaki 8384102550SiwasakiFixed a problem where the use of the ASL Revision operator 8385114237Snjlreturned an error. This operator now returns the current version 8386114237Snjlof the ACPI CA core subsystem. 8387102550Siwasaki 8388114237SnjlFixed a problem where objects passed as control method parameters 8389114237Snjlto AcpiEvaluateObject were always deleted at method termination. 8390114237SnjlHowever, these objects may end up being stored into the namespace 8391114237Snjlby the called method. The object reference count mechanism was 8392114237Snjlapplied to these objects instead of a force delete. 8393102550Siwasaki 8394114237SnjlFixed a problem where static strings or buffers (contained in the 8395114237SnjlAML code) that are declared as package elements within the ASL 8396114237Snjlcode could cause a fault because the interpreter would attempt to 8397114237Snjldelete them. These objects are now marked with the "static 8398114237Snjlobject" flag to prevent any attempt to delete them. 8399102550Siwasaki 8400114237SnjlImplemented an interpreter optimization to use operands directly 8401114237Snjlfrom the state object instead of extracting the operands to local 8402114237Snjlvariables. This reduces stack use and code size, and improves 8403114237Snjlperformance. 8404102550Siwasaki 8405193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 8406126372Snjllayer of code. 8407102550Siwasaki 8408114237SnjlCurrent core subsystem library code sizes are shown below. These 8409114237Snjlare the code and data sizes for the acpica.lib produced by the 8410193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8411126372Snjlany ACPI driver or OSPM code. The debug version of the code 8412126372Snjlincludes the full debug trace mechanism -- leading to a much 8413114237Snjllarger code and data size. Note that these values will vary 8414114237Snjldepending on the efficiency of the compiler and the compiler 8415114237Snjloptions used during generation. 8416102550Siwasaki 8417102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 8418114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 8419114237SnjlTotal (Previously 195K) 8420102550Siwasaki 8421102550SiwasakiLinux: 8422102550Siwasaki 8423114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 8424114237SnjlInteger objects are now 64 bits wide 8425102550Siwasaki 8426114237SnjlAll Acpi data types and structures are now in lower case. Only 8427114237SnjlAcpi macros are upper case for differentiation. 8428102550Siwasaki 8429102550Siwasaki Documentation: 8430102550Siwasaki 8431102550SiwasakiChanges to the external interfaces as described above. 8432102550Siwasaki 8433102550Siwasaki ---------------------------------------- 8434102550SiwasakiSummary of changes for this label: 08_31_01 8435102550Siwasaki 8436102550Siwasaki ACPI CA Core Subsystem: 8437102550Siwasaki 8438114237SnjlA bug with interpreter implementation of the ASL Divide operator 8439114237Snjlwas found and fixed. The implicit function return value (not the 8440114237Snjlexplicit store operands) was returning the remainder instead of 8441114237Snjlthe quotient. This was a longstanding bug and it fixes several 8442114237Snjlknown outstanding issues on various platforms. 8443102550Siwasaki 8444104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 8445193267Sjkimbeen further optimized for size. There are 700 invocations of the 8446126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 8447126372Snjlthe debug version of the subsystem significantly. 8448102550Siwasaki 8449114237SnjlA stack trace mechanism has been implemented. The maximum stack 8450193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 8451126372Snjlstack" will display the current maximum stack usage. 8452102550Siwasaki 8453114237SnjlAll public symbols and global variables within the subsystem are 8454114237Snjlnow prefixed with the string "Acpi". This keeps all of the 8455114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 8456114237Snjlwith other kernel subsystems. 8457102550Siwasaki 8458114237SnjlMost of the internal fixed lookup tables have been moved into the 8459114237Snjlcode segment via the const operator. 8460102550Siwasaki 8461104470SiwasakiSeveral enhancements have been made to the interpreter to both 8462104470Siwasakireduce the code size and improve performance. 8463102550Siwasaki 8464114237SnjlCurrent core subsystem library code sizes are shown below. These 8465114237Snjlare the code and data sizes for the acpica.lib produced by the 8466193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8467126372Snjlany ACPI driver or OSPM code. The debug version of the code 8468126372Snjlincludes the full debug trace mechanism which contains over 700 8469126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 8470126372Snjlinvocations, and over 900 function exit macro invocations -- 8471126372Snjlleading to a much larger code and data size. Note that these 8472114237Snjlvalues will vary depending on the efficiency of the compiler and 8473114237Snjlthe compiler options used during generation. 8474102550Siwasaki 8475102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 8476102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 8477102550Siwasaki 8478102550Siwasaki Linux: 8479102550Siwasaki 8480104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 8481102550Siwasaki 8482102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 8483102550Siwasaki 8484102550Siwasaki ASL Compiler, version X2026: 8485102550Siwasaki 8486104470SiwasakiFixed a problem introduced in the previous label where the AML 8487167802Sjkim 8488104470Siwasakicode emitted for package objects produced packages with zero 8489104470Siwasakilength. 8490102550Siwasaki 8491102550Siwasaki ---------------------------------------- 8492102550SiwasakiSummary of changes for this label: 08_16_01 8493102550Siwasaki 8494102550SiwasakiACPI CA Core Subsystem: 8495102550Siwasaki 8496114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 8497114237SnjlAML interpreter (These are already supported by the Intel ASL 8498193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 8499126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 8500126372SnjlAML parser, debugger, and disassembler. 8501102550Siwasaki 8502114237SnjlThe internal memory tracking mechanism (leak detection code) has 8503114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 8504114237Snjlblock is no longer allocated for each memory allocation), and now 8505114237Snjlsupports all of the internal object caches. 8506102550Siwasaki 8507114237SnjlThe data structures and code for the internal object caches have 8508114237Snjlbeen coelesced and optimized so that there is a single cache and 8509114237Snjlmemory list data structure and a single group of functions that 8510114237Snjlimplement generic cache management. This has reduced the code 8511114237Snjlsize in both the debug and release versions of the subsystem. 8512102550Siwasaki 8513193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 8514126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 8515126372Snjldifferent, because it generates a single call to an internal 8516126372Snjlfunction. This results in a savings of about 90 bytes per 8517193267Sjkiminvocation, resulting in an overall code and data savings of about 8518126372Snjl16% in the debug version of the subsystem. 8519102550Siwasaki 8520102550Siwasaki Linux: 8521102550Siwasaki 8522114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 8523114237Snjlmachines. 8524102550Siwasaki 8525102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 8526102550Siwasaki 8527102550SiwasakiFurther tweaked source code Linuxization. 8528102550Siwasaki 8529102550SiwasakiOther minor fixes. 8530102550Siwasaki 8531102550Siwasaki ASL Compiler: 8532102550Siwasaki 8533114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 8534102550Siwasaki 8535114237SnjlFixed a problem where the optional length parameter for the ACPI 8536114237Snjl2.0 ToString operator. 8537102550Siwasaki 8538114237SnjlFixed multiple extraneous error messages when a syntax error is 8539114237Snjldetected within the declaration line of a control method. 8540102550Siwasaki 8541102550Siwasaki ---------------------------------------- 8542102550SiwasakiSummary of changes for this label: 07_17_01 8543102550Siwasaki 8544102550SiwasakiACPI CA Core Subsystem: 8545102550Siwasaki 8546104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 8547193267SjkimACPI table via the ACPI signature. The interface can be called at 8548126372Snjlany time during kernel initialization, even before the kernel 8549193267Sjkimvirtual memory manager is initialized and paging is enabled. This 8550126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 8551126372Snjlbefore the ACPI CA subsystem is initialized. 8552102550Siwasaki 8553104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 8554104470Siwasakicould be resolved to the incorrect address under the following 8555114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 8556114237Snjlparent operation region is not defined on a DWORD boundary. 8557102550Siwasaki 8558114237SnjlFixed a problem where the interpreter is not being locked during 8559114237Snjlnamespace initialization (during execution of the _INI control 8560114237Snjlmethods), causing an error when an attempt is made to release it 8561114237Snjllater. 8562102550Siwasaki 8563104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 8564114237Snjlongoing throughout the rest of this year. In this label, The Mod 8565114237Snjloperator is implemented. 8566102550Siwasaki 8567102550SiwasakiAdded a new data type to contain full PCI addresses named 8568193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 8569126372Snjland Function values. 8570102550Siwasaki 8571102550Siwasaki Linux: 8572102550Siwasaki 8573102550SiwasakiEnhanced the Linux version of the source code to change most 8574102550Siwasakicapitalized ACPI type names to lowercase. For example, all 8575114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 8576114237Snjlresult in a large diff, but the change is strictly cosmetic and 8577114237Snjlaligns the CA code closer to the Linux coding standard. 8578102550Siwasaki 8579102550SiwasakiOSL Interfaces: 8580102550Siwasaki 8581193267SjkimThe interfaces to the PCI configuration space have been changed to 8582193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 8583126372SnjlDeviceFunction field into two 16-bit fields. This was 8584114237Snjlaccomplished by moving the four values that define an address in 8585114237SnjlPCI configuration space (segment, bus, device, and function) to 8586114237Snjlthe new ACPI_PCI_ID structure. 8587102550Siwasaki 8588104470SiwasakiThe changes to the PCI configuration space interfaces led to a 8589104470Siwasakireexamination of the complete set of address space access 8590114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 8591114237Snjlinterfaces have proven difficult to maintain (any small change 8592193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 8593193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 8594126372Snjlsystems, it would not be appropriate to demultiplex the access 8595126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 8596114237Snjlcorresponding native OS interfaces contain a similar access width 8597114237Snjlparameter. For these reasons, the 18 address space interfaces 8598114237Snjlhave been replaced by these 6 new ones: 8599102550Siwasaki 8600102550SiwasakiAcpiOsReadPciConfiguration 8601102550SiwasakiAcpiOsWritePciConfiguration 8602102550SiwasakiAcpiOsReadMemory 8603102550SiwasakiAcpiOsWriteMemory 8604102550SiwasakiAcpiOsReadPort 8605102550SiwasakiAcpiOsWritePort 8606102550Siwasaki 8607114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 8608114237Snjlto perform the platform and/or OS-specific actions necessary to 8609114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 8610114237Snjlinterface will simply call down to the CA core to perform the low- 8611114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 8612114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 8613167802Sjkim 8614114237Snjlremain OS and platform independent. 8615102550Siwasaki 8616104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 8617114237Snjl"function code and pointer" interface for various miscellaneous 8618114237Snjlsignals and notifications that must be made to the host OS. The 8619114237Snjlfirst such signals are intended to support the ASL Fatal and 8620114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 8621114237Snjlinterface has been obsoleted. 8622102550Siwasaki 8623102550SiwasakiThe definition of the AcpiFormatException interface has been 8624114237Snjlchanged to simplify its use. The caller no longer must supply a 8625114237Snjlbuffer to the call; A pointer to a const string is now returned 8626114237Snjldirectly. This allows the call to be easily used in printf 8627114237Snjlstatements, etc. since the caller does not have to manage a local 8628114237Snjlbuffer. 8629102550Siwasaki 8630114237Snjl 8631102550Siwasaki ASL Compiler, Version X2025: 8632102550Siwasaki 8633114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 8634114237Snjland are fully functional. They will work with all ACPI 1.0 8635193267Sjkiminterpreters, since the operators are simply translated to If/Else 8636126372Snjlpairs. 8637102550Siwasaki 8638104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 8639104470Siwasakiwith 1.0 interpreters, for the same reason. 8640102550Siwasaki 8641114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 8642114237Snjlpackages have a separate opcode, and their size is determined by 8643114237Snjlthe interpreter at run-time. 8644102550Siwasaki 8645193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 8646126372Snjlreflect the new interfaces and changes to existing interfaces. 8647102550Siwasaki 8648102550Siwasaki ------------------------------------------ 8649102550SiwasakiSummary of changes for this label: 06_15_01 8650102550Siwasaki 8651102550Siwasaki ACPI CA Core Subsystem: 8652102550Siwasaki 8653102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 8654114237Snjlobject would get its byte address inadvertently rounded down to 8655114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 8656102550Siwasaki 8657102550Siwasaki ASL Compiler, version X2024: 8658102550Siwasaki 8659114237SnjlFixed a problem where the Switch() operator would either fault or 8660114237Snjlhang the compiler. Note however, that the AML code for this ACPI 8661114237Snjl2.0 operator is not yet implemented. 8662102550Siwasaki 8663114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 8664114237Snjltimings. 8665102550Siwasaki 8666114237SnjlImplementation of the CreateField operator automatically converts 8667114237Snjla reference to a named field within a resource descriptor from a 8668114237Snjlbyte offset to a bit offset if required. 8669102550Siwasaki 8670102550SiwasakiAdded some missing named fields from the resource descriptor 8671193267Sjkimsupport. These are the names that are automatically created by the 8672126372Snjlcompiler to reference fields within a descriptor. They are only 8673126372Snjlvalid at compile time and are not passed through to the AML 8674114237Snjlinterpreter. 8675102550Siwasaki 8676104470SiwasakiResource descriptor named fields are now typed as Integers and 8677104470Siwasakisubject to compile-time typechecking when used in expressions. 8678102550Siwasaki 8679102550Siwasaki ------------------------------------------ 8680102550SiwasakiSummary of changes for this label: 05_18_01 8681102550Siwasaki 8682102550Siwasaki ACPI CA Core Subsystem: 8683102550Siwasaki 8684114237SnjlFixed a couple of problems in the Field support code where bits 8685193267Sjkimfrom adjacent fields could be returned along with the proper field 8686126372Snjlbits. Restructured the field support code to improve performance, 8687126372Snjlreadability and maintainability. 8688102550Siwasaki 8689114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 8690114237Snjlinto the output, saving hundreds of copies of procedure name 8691114237Snjlstrings within the source, shrinking the memory footprint of the 8692114237Snjldebug version of the core subsystem. 8693102550Siwasaki 8694102550Siwasaki Source Code Structure: 8695102550Siwasaki 8696104470SiwasakiThe source code directory tree was restructured to reflect the 8697114237Snjlcurrent organization of the component architecture. Some files 8698114237Snjland directories have been moved and/or renamed. 8699102550Siwasaki 8700102550Siwasaki Linux: 8701102550Siwasaki 8702102550SiwasakiFixed leaking kacpidpc processes. 8703102550Siwasaki 8704102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 8705102550Siwasakiopened. 8706102550Siwasaki 8707102550Siwasaki ASL Compiler, version X2020: 8708102550Siwasaki 8709114237SnjlMemory allocation performance enhancement - over 24X compile time 8710114237Snjlimprovement on large ASL files. Parse nodes and namestring 8711114237Snjlbuffers are now allocated from a large internal compiler buffer. 8712102550Siwasaki 8713102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 8714102550Siwasakispecified 8715102550Siwasaki 8716193267SjkimThe "-d" debug output option now sends all output to the .DBG file 8717126372Snjlinstead of the console. 8718102550Siwasaki 8719102550Siwasaki"External" second parameter is now optional 8720102550Siwasaki 8721102550Siwasaki"ElseIf" syntax now properly allows the predicate 8722102550Siwasaki 8723102550SiwasakiLast operand to "Load" now recognized as a Target operand 8724102550Siwasaki 8725102550SiwasakiDebug object can now be used anywhere as a normal object. 8726102550Siwasaki 8727102550SiwasakiResourceTemplate now returns an object of type BUFFER 8728102550Siwasaki 8729102550SiwasakiEISAID now returns an object of type INTEGER 8730102550Siwasaki 8731102550Siwasaki"Index" now works with a STRING operand 8732102550Siwasaki 8733102550Siwasaki"LoadTable" now accepts optional parameters 8734102550Siwasaki 8735102550Siwasaki"ToString" length parameter is now optional 8736102550Siwasaki 8737102550Siwasaki"Interrupt (ResourceType," parse error fixed. 8738102550Siwasaki 8739104470Siwasaki"Register" with a user-defined region space parse error fixed 8740102550Siwasaki 8741114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 8742114237Snjlfixed 8743102550Siwasaki 8744102550Siwasaki"Revision" is now an object of type INTEGER. 8745102550Siwasaki 8746102550Siwasaki 8747102550Siwasaki 8748102550Siwasaki------------------------------------------ 8749102550SiwasakiSummary of changes for this label: 05_02_01 8750102550Siwasaki 8751102550SiwasakiLinux: 8752102550Siwasaki 8753102550Siwasaki/proc/acpi/event now blocks properly. 8754102550Siwasaki 8755102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 8756102550Siwasaki/proc/acpi/dsdt. 8757102550Siwasaki 8758102550Siwasaki ACPI CA Core Subsystem: 8759102550Siwasaki 8760193267SjkimFixed a problem introduced in the previous label where some of the 8761126372Snjl"small" resource descriptor types were not recognized. 8762102550Siwasaki 8763193267SjkimImproved error messages for the case where an ASL Field is outside 8764126372Snjlthe range of the parent operation region. 8765102550Siwasaki 8766102550Siwasaki ASL Compiler, version X2018: 8767102550Siwasaki 8768167802Sjkim 8769193267SjkimAdded error detection for ASL Fields that extend beyond the length 8770126372Snjlof the parent operation region (only if the length of the region 8771126372Snjlis known at compile time.) This includes fields that have a 8772126372Snjlminimum access width that is smaller than the parent region, and 8773126372Snjlindividual field units that are partially or entirely beyond the 8774126372Snjlextent of the parent. 8775102550Siwasaki 8776102550Siwasaki 8777102550Siwasaki 8778102550Siwasaki------------------------------------------ 8779102550SiwasakiSummary of changes for this label: 04_27_01 8780102550Siwasaki 8781102550Siwasaki ACPI CA Core Subsystem: 8782102550Siwasaki 8783193267SjkimFixed a problem where the namespace mutex could be released at the 8784126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 8785102550Siwasaki 8786104470SiwasakiAdded optional thread ID output for debug traces, to simplify 8787114237Snjldebugging of multiple threads. Added context switch notification 8788114237Snjlwhen the debug code realizes that a different thread is now 8789114237Snjlexecuting ACPI code. 8790102550Siwasaki 8791114237SnjlSome additional external data types have been prefixed with the 8792114237Snjlstring "ACPI_" for consistency. This may effect existing code. 8793193267SjkimThe data types affected are the external callback typedefs - e.g., 8794167802Sjkim 8795126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 8796102550Siwasaki 8797102550Siwasaki Linux: 8798102550Siwasaki 8799102550SiwasakiFixed an issue with the OSL semaphore implementation where a 8800102550Siwasakithread was waking up with an error from receiving a SIGCHLD 8801102550Siwasakisignal. 8802102550Siwasaki 8803114237SnjlLinux version of ACPI CA now uses the system C library for string 8804114237Snjlmanipulation routines instead of a local implementation. 8805102550Siwasaki 8806102550SiwasakiCleaned up comments and removed TBDs. 8807102550Siwasaki 8808102550Siwasaki ASL Compiler, version X2017: 8809102550Siwasaki 8810102550SiwasakiEnhanced error detection and reporting for all file I/O 8811102550Siwasakioperations. 8812102550Siwasaki 8813102550Siwasaki Documentation: 8814102550Siwasaki 8815102550SiwasakiProgrammer Reference updated to version 1.06. 8816102550Siwasaki 8817102550Siwasaki 8818102550Siwasaki 8819102550Siwasaki------------------------------------------ 8820102550SiwasakiSummary of changes for this label: 04_13_01 8821102550Siwasaki 8822102550Siwasaki ACPI CA Core Subsystem: 8823102550Siwasaki 8824102550SiwasakiRestructured support for BufferFields and RegionFields. 8825104470SiwasakiBankFields support is now fully operational. All known 32-bit 8826114237Snjllimitations on field sizes have been removed. Both BufferFields 8827114237Snjland (Operation) RegionFields are now supported by the same field 8828114237Snjlmanagement code. 8829102550Siwasaki 8830114237SnjlResource support now supports QWORD address and IO resources. The 8831114237Snjl16/32/64 bit address structures and the Extended IRQ structure 8832114237Snjlhave been changed to properly handle Source Resource strings. 8833102550Siwasaki 8834114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 8835193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 8836126372SnjlThis reserved value was changed from 0 since Unix systems allow a 8837126372Snjlthread ID of 0. 8838102550Siwasaki 8839102550SiwasakiLinux: 8840102550Siwasaki 8841102550SiwasakiDriver code reorganized to enhance portability 8842102550Siwasaki 8843102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 8844102550Siwasaki 8845102550SiwasakiFixed the EC driver to honor _GLK. 8846102550Siwasaki 8847102550SiwasakiASL Compiler, version X2016: 8848102550Siwasaki 8849114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 8850114237Snjladdress space was set to 0, not 0x7f as it should be. 8851102550Siwasaki 8852102550Siwasaki ------------------------------------------ 8853102550SiwasakiSummary of changes for this label: 03_13_01 8854102550Siwasaki 8855102550Siwasaki ACPI CA Core Subsystem: 8856102550Siwasaki 8857104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 8858104470Siwasakipresent. 8859102550Siwasaki 8860193267SjkimNotify handler fix - notifies are deferred until the parent method 8861126372Snjlcompletes execution. This fixes the "mutex already acquired" 8862126372Snjlissue seen occasionally. 8863102550Siwasaki 8864104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 8865114237Snjlfound to cause compatibility problems with existing ASL/AML. The 8866114237Snjlconvert "result-to-target-type" implementation has been removed 8867114237Snjlfor stores to method Args and Locals. Source operand conversion 8868114237Snjlis still fully implemented. Possible changes to ACPI 2.0 8869114237Snjlspecification pending. 8870102550Siwasaki 8871104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 8872104470Siwasakilength. 8873102550Siwasaki 8874102550SiwasakiFix for compiler warnings for 64-bit compiles. 8875102550Siwasaki 8876102550Siwasaki Linux: 8877102550Siwasaki 8878102550Siwasaki/proc output aligned for easier parsing. 8879102550Siwasaki 8880102550SiwasakiRelease-version compile problem fixed. 8881102550Siwasaki 8882104470SiwasakiNew kernel configuration options documented in Configure.help. 8883102550Siwasaki 8884102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 8885102550Siwasakicontext" message. 8886102550Siwasaki 8887102550Siwasaki OSPM: 8888102550Siwasaki 8889102550SiwasakiPower resource driver integrated with bus manager. 8890102550Siwasaki 8891102550SiwasakiFixed kernel fault during active cooling for thermal zones. 8892102550Siwasaki 8893102550SiwasakiSource Code: 8894102550Siwasaki 8895102550SiwasakiThe source code tree has been restructured. 8896102550Siwasaki 8897102550Siwasaki 8898102550Siwasaki 8899102550Siwasaki------------------------------------------ 8900102550SiwasakiSummary of changes for this label: 03_02_01 8901102550Siwasaki 8902102550Siwasaki Linux OS Services Layer (OSL): 8903102550Siwasaki 8904102550SiwasakiMajor revision of all Linux-specific code. 8905102550Siwasaki 8906102550SiwasakiModularized all ACPI-specific drivers. 8907102550Siwasaki 8908102550SiwasakiAdded new thermal zone and power resource drivers. 8909102550Siwasaki 8910114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 8911102550Siwasaki 8912102550SiwasakiNew kernel configuration options. 8913102550Siwasaki 8914102550Siwasaki Linux known issues: 8915102550Siwasaki 8916114237SnjlNew kernel configuration options not documented in Configure.help 8917114237Snjlyet. 8918102550Siwasaki 8919114237Snjl 8920102550SiwasakiModule dependencies not currently implemented. If used, they 8921102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 8922102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 8923102550Siwasaki 8924102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 8925102550Siwasaki 8926102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 8927102550Siwasaki 8928104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 8929104470Siwasakimessage. 8930102550Siwasaki 8931104470SiwasakiSome systems may fail with "execution mutex already acquired" 8932104470Siwasakimessage. 8933102550Siwasaki 8934102550Siwasaki ACPI CA Core Subsystem: 8935102550Siwasaki 8936114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 8937193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 8938126372Snjlbit thread ID for the currently executing thread. May be a non- 8939126372Snjlzero constant integer on single-thread systems. 8940102550Siwasaki 8941193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 8942126372Snjlmay add conditional compilation for this code (debug only) later. 8943102550Siwasaki 8944104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 8945114237Snjlincludes multiple acquires/releases by owner and support for the 8946167802Sjkim 8947114237SnjlMutex SyncLevel parameter. 8948102550Siwasaki 8949102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 8950104470SiwasakiMutexes that have been acquired but not released when a thread 8951114237Snjlexits the interpreter. This forces conformance to the ACPI spec 8952114237Snjl("All mutexes must be released when an invocation exits") and 8953114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 8954114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 8955114237Snjlcontinues to misbehave (which it will). 8956102550Siwasaki 8957104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 8958104470Siwasakisupport. 8959102550Siwasaki 8960104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 8961114237Snjlspec does in fact allow recursive method calls.) The number of 8962114237Snjlrecursive calls is subject to the restrictions imposed by the 8963114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 8964104470Siwasakiparameter. 8965102550Siwasaki 8966102550SiwasakiImplemented support for the SyncLevel parameter for control 8967102550Siwasakimethods (ACPI 2.0 feature) 8968102550Siwasaki 8969114237SnjlFixed a deadlock problem when multiple threads attempted to use 8970114237Snjlthe interpreter. 8971102550Siwasaki 8972102550SiwasakiFixed a problem where the string length of a String package 8973102550Siwasakielement was not always set in a package returned from 8974102550SiwasakiAcpiEvaluateObject. 8975102550Siwasaki 8976114237SnjlFixed a problem where the length of a String package element was 8977114237Snjlnot always included in the length of the overall package returned 8978114237Snjlfrom AcpiEvaluateObject. 8979102550Siwasaki 8980102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 8981102550Siwasakimanager. This manager keeps a list of all outstanding 8982193267Sjkimallocations, and can therefore detect memory leaks and attempts to 8983126372Snjlfree memory blocks more than once. Useful for code such as the 8984114237Snjlpower manager, etc. May not be appropriate for device drivers. 8985114237SnjlPerformance with the debug code enabled is slow. 8986102550Siwasaki 8987102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 8988102550Siwasaki 8989102550Siwasaki ASL Compiler Version X2015: 8990102550Siwasaki 8991102550SiwasakiIntegrated changes to allow the compiler to be generated on 8992102550Siwasakimultiple platforms. 8993102550Siwasaki 8994102550SiwasakiLinux makefile added to generate the compiler on Linux 8995102550Siwasaki 8996102550Siwasaki Source Code: 8997102550Siwasaki 8998102550SiwasakiAll platform-specific headers have been moved to their own 8999102550Siwasakisubdirectory, Include/Platform. 9000102550Siwasaki 9001102550SiwasakiNew source file added, Interpreter/ammutex.c 9002102550Siwasaki 9003102550SiwasakiNew header file, Include/acstruct.h 9004102550Siwasaki 9005102550Siwasaki Documentation: 9006102550Siwasaki 9007114237SnjlThe programmer reference has been updated for the following new 9008114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 9009102550Siwasaki 9010102550Siwasaki ------------------------------------------ 9011102550SiwasakiSummary of changes for this label: 02_08_01 9012102550Siwasaki 9013102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 9014193267Sjkimincorrectly returned if the return resource buffer was larger than 9015126372Snjlthe actual data (in the resource interfaces). 9016102550Siwasaki 9017114237SnjlReferences to named objects within packages are resolved to the 9018167802Sjkim 9019114237Snjlfull pathname string before packages are returned directly (via 9020114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 9021114237Snjlinterfaces. 9022102550Siwasaki 9023102550SiwasakiLinux OS Services Layer (OSL): 9024102550Siwasaki 9025102550SiwasakiImproved /proc battery interface. 9026102550Siwasaki 9027102550Siwasaki 9028104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 9029102550Siwasaki 9030102550SiwasakiASL Compiler Version X2014: 9031102550Siwasaki 9032114237SnjlAll defined method arguments can now be used as local variables, 9033114237Snjlincluding the ones that are not actually passed in as parameters. 9034114237SnjlThe compiler tracks initialization of the arguments and issues an 9035114237Snjlexception if they are used without prior assignment (just like 9036114237Snjllocals). 9037102550Siwasaki 9038193267SjkimThe -o option now specifies a filename prefix that is used for all 9039126372Snjloutput files, including the AML output file. Otherwise, the 9040114237Snjldefault behavior is as follows: 1) the AML goes to the file 9041114237Snjlspecified in the DSDT. 2) all other output files use the input 9042114237Snjlsource filename as the base. 9043102550Siwasaki 9044102550Siwasaki ------------------------------------------ 9045102550SiwasakiSummary of changes for this label: 01_25_01 9046102550Siwasaki 9047114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 9048114237Snjlstore support within the interpreter. This includes support for 9049114237Snjlthe Store operator as well as any ASL operators that include a 9050114237Snjltarget operand. 9051102550Siwasaki 9052102550SiwasakiPartially implemented support for Implicit Result-to-Target 9053114237Snjlconversion. This is when a result object is converted on the fly 9054114237Snjlto the type of an existing target object. Completion of this 9055114237Snjlsupport is pending further analysis of the ACPI specification 9056114237Snjlconcerning this matter. 9057102550Siwasaki 9058114237SnjlCPU-specific code has been removed from the subsystem (hardware 9059114237Snjldirectory). 9060102550Siwasaki 9061102550SiwasakiNew Power Management Timer functions added 9062102550Siwasaki 9063114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 9064114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 9065102550Siwasaki 9066102550SiwasakiFixed C2 and C3 latency calculations. 9067102550Siwasaki 9068102550Siwasaki 9069114237SnjlWe no longer use the compilation date for the version message on 9070193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 9071102550Siwasaki 9072102550SiwasakiIncorporated for fix Sony VAIO machines. 9073102550Siwasaki 9074104470SiwasakiDocumentation: The Programmer Reference has been updated and 9075104470Siwasakireformatted. 9076102550Siwasaki 9077102550Siwasaki 9078102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 9079102550Siwasakinumbering and error reporting could get out of sync in the 9080102550Siwasakipresence of multiple include files. 9081102550Siwasaki 9082102550Siwasaki ------------------------------------------ 9083102550SiwasakiSummary of changes for this label: 01_15_01 9084102550Siwasaki 9085102550SiwasakiCore ACPI CA Subsystem: 9086102550Siwasaki 9087114237SnjlImplemented support for type conversions in the execution of the 9088114237SnjlASL Concatenate operator (The second operand is converted to 9089114237Snjlmatch the type of the first operand before concatenation.) 9090102550Siwasaki 9091102550SiwasakiSupport for implicit source operand conversion is partially 9092114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 9093114237SnjlString are freely interchangeable for most ASL operators and are 9094114237Snjlconverted by the interpreter on the fly as required. Implicit 9095114237SnjlTarget operand conversion (where the result is converted to the 9096114237Snjltarget type before storing) is not yet implemented. 9097102550Siwasaki 9098102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 9099102550Siwasaki 9100193267SjkimProblem fixed where a field read on an aligned field could cause a 9101126372Snjlread past the end of the field. 9102102550Siwasaki 9103114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 9104114237Snjldoes not return a value, but the caller expects one. (The ASL 9105114237Snjlcompiler flags this as a warning.) 9106102550Siwasaki 9107102550SiwasakiASL Compiler: 9108102550Siwasaki 9109102550SiwasakiVersion X2011: 9110102550Siwasaki1. Static typechecking of all operands is implemented. This 9111193267Sjkimprevents the use of invalid objects (such as using a Package where 9112126372Snjlan Integer is required) at compile time instead of at interpreter 9113126372Snjlrun-time. 9114114237Snjl2. The ASL source line is printed with ALL errors and warnings. 9115102550Siwasaki3. Bug fix for source EOF without final linefeed. 9116193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 9117102550Siwasaki5. Namespace output option (-n) includes initial values for 9118102550Siwasakiintegers and strings. 9119102550Siwasaki6. Parse-only option added for quick syntax checking. 9120102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 9121102550Siwasaki 9122102550SiwasakiVersion X2012: 9123102550Siwasaki1. Relaxed typechecking to allow interchangeability between 9124114237Snjlstrings, integers, and buffers. These types are now converted by 9125114237Snjlthe interpreter at runtime. 9126114237Snjl2. Compiler reports time taken by each internal subsystem in the 9127114237Snjldebug output file. 9128102550Siwasaki 9129102550Siwasaki 9130102550Siwasaki ------------------------------------------ 9131102550SiwasakiSummary of changes for this label: 12_14_00 9132102550Siwasaki 9133102550SiwasakiASL Compiler: 9134102550Siwasaki 9135104470SiwasakiThis is the first official release of the compiler. Since the 9136104470Siwasakicompiler requires elements of the Core Subsystem, this label 9137104470Siwasakisynchronizes everything. 9138102550Siwasaki 9139102550Siwasaki------------------------------------------ 9140102550SiwasakiSummary of changes for this label: 12_08_00 9141102550Siwasaki 9142102550Siwasaki 9143114237SnjlFixed a problem where named references within the ASL definition 9144114237Snjlof both OperationRegions and CreateXXXFields did not work 9145114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9146114237Snjlinitialization of the region/field. This is similar (but not 9147114237Snjlrelated internally) to the problem that was fixed in the last 9148114237Snjllabel. 9149114237Snjl 9150102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 9151102550Siwasakifunctions ToBCD and FromBCD. 9152102550Siwasaki 9153102550SiwasakiUpdated all legal headers to include "2000" in the copyright 9154102550Siwasakiyears. 9155102550Siwasaki 9156102550Siwasaki ------------------------------------------ 9157102550SiwasakiSummary of changes for this label: 12_01_00 9158102550Siwasaki 9159193267SjkimFixed a problem where method invocations within the ASL definition 9160126372Snjlof both OperationRegions and CreateXXXFields did not work 9161126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9162114237Snjlinitialization of the region/field: 9163102550Siwasaki 9164114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 9165114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 9166114237Snjl(0x3005) 9167102550Siwasaki 9168102550SiwasakiFixed a problem where operators with more than one nested 9169104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 9170114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 9171114237Snjlproblem that has gone unnoticed until now. 9172102550Siwasaki 9173102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 9174102550Siwasaki 9175114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 9176114237Snjlprevious build (The prefix part of a relative path was handled 9177114237Snjlincorrectly). 9178102550Siwasaki 9179114237SnjlFixed a problem where Operation Region initialization failed if 9180114237Snjlthe operation region name was a "namepath" instead of a simple 9181114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 9182102550Siwasaki 9183114237SnjlFixed a problem where an assignment to a local variable via the 9184114237Snjlindirect RefOf mechanism only worked for the first such 9185102550Siwasakiassignment. Subsequent assignments were ignored. 9186102550Siwasaki 9187102550Siwasaki ------------------------------------------ 9188102550SiwasakiSummary of changes for this label: 11_15_00 9189102550Siwasaki 9190193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 9191193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 9192126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 9193126372Snjlgrammar terms at this time. 9194102550Siwasaki 9195193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 9196126372SnjlFADT. 9197102550Siwasaki 9198193267SjkimAll physical memory addresses across all platforms are now 64 bits 9199126372Snjlwide. Logical address width remains dependent on the platform 9200126372Snjl(i.e., "void *"). 9201102550Siwasaki 9202114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 9203102550Siwasaki 9204114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 9205114237Snjl2.0 specification. 9206102550Siwasaki 9207104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 9208104470Siwasakirevision number less than 2 use 32-bit integers only. 9209102550Siwasaki 9210114237SnjlFixed a problem where the evaluation of OpRegion operands did not 9211114237Snjlalways resolve them to numbers properly. 9212102550Siwasaki 9213102550Siwasaki------------------------------------------ 9214102550SiwasakiSummary of changes for this label: 10_20_00 9215102550Siwasaki 9216114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 9217114237SnjlCBN_ OpRegions when the _STA returns 0x8. 9218102550Siwasaki 9219104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 9220104470Siwasakivalues before a package object is returned 9221102550Siwasaki 9222104470SiwasakiFix for method call as predicate to if/while construct causing 9223104470Siwasakiincorrect if/while behavior 9224102550Siwasaki 9225114237SnjlFix for Else block package lengths sometimes calculated wrong (if 9226114237Snjlblock > 63 bytes) 9227102550Siwasaki 9228102550SiwasakiFix for Processor object length field, was always zero 9229102550Siwasaki 9230102550SiwasakiTable load abort if FACP sanity check fails 9231102550Siwasaki 9232102550SiwasakiFix for problem with Scope(name) if name already exists 9233102550Siwasaki 9234102550SiwasakiWarning emitted if a named object referenced cannot be found 9235102550Siwasaki(resolved) during method execution. 9236102550Siwasaki 9237102550Siwasaki 9238102550Siwasaki 9239102550Siwasaki 9240102550Siwasaki 9241102550Siwasaki------------------------------------------ 9242102550SiwasakiSummary of changes for this label: 9_29_00 9243102550Siwasaki 9244114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 9245114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 9246114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 9247114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 9248114237SnjlAcpiLoadTables 9249102550Siwasaki 9250193267SjkimNote: These interface changes require changes to all existing OSDs 9251102550Siwasaki 9252114237SnjlThe PCI_Config default address space handler is always installed 9253114237Snjlat the root namespace object. 9254102550Siwasaki 9255102550Siwasaki------------------------------------------- 9256102550SiwasakiSummary of changes for this label: 09_15_00 9257102550Siwasaki 9258102550SiwasakiThe new initialization architecture is implemented. New 9259114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 9260114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 9261167802Sjkim 9262114237Snjl(Namespace is automatically loaded when a table is loaded) 9263102550Siwasaki 9264193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 9265126372Snjl52 bytes to 32 bytes. There is usually one of these for every 9266126372Snjlnamespace object, so the memory savings is significant. 9267102550Siwasaki 9268114237SnjlImplemented just-in-time evaluation of the CreateField operators. 9269102550Siwasaki 9270102550SiwasakiBug fixes for IA-64 support have been integrated. 9271102550Siwasaki 9272102550SiwasakiAdditional code review comments have been implemented 9273102550Siwasaki 9274193267SjkimThe so-called "third pass parse" has been replaced by a final walk 9275193267Sjkimthrough the namespace to initialize all operation regions (address 9276126372Snjlspaces) and fields that have not yet been initialized during the 9277126372Snjlexecution of the various _INI and REG methods. 9278102550Siwasaki 9279102550SiwasakiNew file - namespace/nsinit.c 9280102550Siwasaki 9281102550Siwasaki------------------------------------------- 9282102550SiwasakiSummary of changes for this label: 09_01_00 9283102550Siwasaki 9284193267SjkimNamespace manager data structures have been reworked to change the 9285126372Snjlprimary object from a table to a single object. This has 9286193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 9287126372Snjl2X overall in the ACPI CA subsystem. 9288102550Siwasaki 9289102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 9290102550Siwasakiinadvertently left commented out. 9291102550Siwasaki 9292114237SnjlReduced the warning count when generating the source with the GCC 9293114237Snjlcompiler. 9294102550Siwasaki 9295102550SiwasakiRevision numbers added to each module header showing the 9296104470SiwasakiSourceSafe version of the file. Please refer to this version 9297114237Snjlnumber when giving us feedback or comments on individual modules. 9298102550Siwasaki 9299114237SnjlThe main object types within the subsystem have been renamed to 9300114237Snjlclarify their purpose: 9301102550Siwasaki 9302102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 9303102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 9304102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 9305102550Siwasaki 9306114237SnjlNOTE: no changes to the initialization sequence are included in 9307114237Snjlthis label. 9308102550Siwasaki 9309102550Siwasaki------------------------------------------- 9310102550SiwasakiSummary of changes for this label: 08_23_00 9311102550Siwasaki 9312102550SiwasakiFixed problem where TerminateControlMethod was being called 9313102550Siwasakimultiple times per method 9314102550Siwasaki 9315193267SjkimFixed debugger problem where single stepping caused a semaphore to 9316126372Snjlbe oversignalled 9317102550Siwasaki 9318104470SiwasakiImproved performance through additional parse object caching - 9319104470Siwasakiadded ACPI_EXTENDED_OP type 9320102550Siwasaki 9321102550Siwasaki------------------------------------------- 9322102550SiwasakiSummary of changes for this label: 08_10_00 9323102550Siwasaki 9324102550SiwasakiParser/Interpreter integration: Eliminated the creation of 9325102550Siwasakicomplete parse trees for ACPI tables and control methods. 9326114237SnjlInstead, parse subtrees are created and then deleted as soon as 9327193267Sjkimthey are processed (Either entered into the namespace or executed 9328126372Snjlby the interpreter). This reduces the use of dynamic kernel 9329126372Snjlmemory significantly. (about 10X) 9330102550Siwasaki 9331114237SnjlException codes broken into classes and renumbered. Be sure to 9332114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 9333114237Snjlhave to renumber the codes again now that they are split into 9334114237Snjlclasses (environment, programmer, AML code, ACPI table, and 9335114237Snjlinternal). 9336102550Siwasaki 9337104470SiwasakiFixed some additional alignment issues in the Resource Manager 9338104470Siwasakisubcomponent 9339102550Siwasaki 9340114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 9341114237Snjlseveral places where mutexes/semaphores were being unlocked 9342114237Snjlwithout a corresponding lock operation. There are no known 9343114237Snjlsemaphore or mutex "leaks" at this time. 9344102550Siwasaki 9345114237SnjlFixed the case where an ASL Return operator is used to return an 9346114237Snjlunnamed package. 9347102550Siwasaki 9348102550Siwasaki------------------------------------------- 9349102550SiwasakiSummary of changes for this label: 07_28_00 9350102550Siwasaki 9351102550SiwasakiFixed a problem with the way addresses were calculated in 9352114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 9353114237Snjlmanifested itself when a Field was created with WordAccess or 9354193267SjkimDwordAccess, but the field unit defined within the Field was less 9355167802Sjkim 9356126372Snjlthan a Word or Dword. 9357102550Siwasaki 9358102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 9359104470Siwasakioperands off of the operand stack to display information. The 9360114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 9361114237Snjlaccessing an operand stack with two or more operands. 9362102550Siwasaki 9363114237SnjlFixed a problem with the PCI configuration space handlers where 9364114237Snjlcontext was getting confused between accesses. This required a 9365114237Snjlchange to the generic address space handler and address space 9366193267Sjkimsetup definitions. Handlers now get both a global handler context 9367126372Snjl(this is the one passed in by the user when executing 9368114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 9369114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 9370114237Snjl_BBN values associated with a specific region). The generic 9371114237Snjlfunction definitions have changed to the following: 9372102550Siwasaki 9373114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 9374114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 9375104470Siwasaki*HandlerContext, // This used to be void *Context void 9376102550Siwasaki*RegionContext); // This is an additional parameter 9377102550Siwasaki 9378102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 9379102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 9380102550Siwasaki**RegionContext); // This used to be **ReturnContext 9381102550Siwasaki 9382102550Siwasaki------------------------------------------- 9383102550SiwasakiSummary of changes for this label: 07_21_00 9384102550Siwasaki 9385102550SiwasakiMajor file consolidation and rename. All files within the 9386193267Sjkiminterpreter have been renamed as well as most header files. This 9387126372Snjlwas done to prevent collisions with existing files in the host 9388126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 9389126372Snjlquite common. The VC project files have been updated. All 9390114237Snjlmakefiles will require modification. 9391102550Siwasaki 9392114237SnjlThe parser/interpreter integration continues in Phase 5 with the 9393114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 9394114237Snjltwice) for each table; This avoids the construction of a huge 9395114237Snjlparse tree and therefore reduces the amount of dynamic memory 9396114237Snjlrequired by the subsystem. Greater use of the parse object cache 9397114237Snjlmeans that performance is unaffected. 9398102550Siwasaki 9399102550SiwasakiMany comments from the two code reviews have been rolled in. 9400102550Siwasaki 9401102550SiwasakiThe 64-bit alignment support is complete. 9402102550Siwasaki 9403102550Siwasaki------------------------------------------- 9404102550SiwasakiSummary of changes for this label: 06_30_00 9405102550Siwasaki 9406114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 9407114237Snjlwe've added support in the source code for 80 column output 9408114237Snjldevices. The code is now mostly constrained to 80 columns or 9409114237Snjlless to support environments and editors that 1) cannot display 9410114237Snjlor print more than 80 characters on a single line, and 2) cannot 9411114237Snjldisable line wrapping. 9412102550Siwasaki 9413104470SiwasakiA major restructuring of the namespace data structure has been 9414104470Siwasakicompleted. The result is 1) cleaner and more 9415114237Snjlunderstandable/maintainable code, and 2) a significant reduction 9416114237Snjlin the dynamic memory requirement for each named ACPI object 9417114237Snjl(almost half). 9418102550Siwasaki 9419102550Siwasaki------------------------------------------- 9420102550SiwasakiSummary of changes for this label: 06_23_00 9421102550Siwasaki 9422114237SnjlLinux support has been added. In order to obtain approval to get 9423114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 9424114237Snjlquite a few changes to the base subsystem that will affect all 9425114237Snjlusers (all the changes are generic and OS- independent). The 9426114237Snjleffects of these global changes have been somewhat far reaching. 9427114237SnjlFiles have been merged and/or renamed and interfaces have been 9428114237Snjlrenamed. The major changes are described below. 9429102550Siwasaki 9430102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 9431102550Siwasakipollution/confusion within our target kernels. All OSD 9432114237Snjlinterfaces must be modified to match the new naming convention. 9433102550Siwasaki 9434193267SjkimFiles merged across the subsystem. A number of the smaller source 9435126372Snjland header files have been merged to reduce the file count and 9436126372Snjlincrease the density of the existing files. There are too many 9437126372Snjlto list here. In general, makefiles that call out individual 9438126372Snjlfiles will require rebuilding. 9439102550Siwasaki 9440104470SiwasakiInterpreter files renamed. All interpreter files now have the 9441104470Siwasakiprefix am* instead of ie* and is*. 9442102550Siwasaki 9443104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 9444114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 9445114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 9446114237Snjl"external interface" or xface or xf in the filenames.j 9447102550Siwasaki 9448102550Siwasaki 9449114237SnjlAll manifest constants have been forced to upper case (some were 9450193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 9451126372Snjl(not all) of the constants, typedefs, and structs. 9452102550Siwasaki 9453102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 9454102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 9455102550Siwasaki 9456102550SiwasakiAll other globals within the subsystem are now prefixed with 9457102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 9458114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 9459193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 9460126372Snjl- for example, CmCallocate became AcpiCmCallocate. 9461102550Siwasaki 9462102550SiwasakiAdded a source code translation/conversion utility. Used to 9463114237Snjlgenerate the Linux source code, it can be modified to generate 9464114237Snjlother types of source as well. Can also be used to cleanup 9465114237Snjlexisting source by removing extraneous spaces and blank lines. 9466114237SnjlFound in tools/acpisrc/* 9467102550Siwasaki 9468102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 9469102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 9470102550Siwasaki 9471114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 9472114237SnjlWhen set to one, this indicates that the caller wants to use the 9473167802Sjkim 9474114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 9475114237Snjlboth types. However, implementers of this call may want to use 9476114237Snjldifferent OS primitives depending on the type of semaphore 9477114237Snjlrequested. For example, some operating systems provide separate 9478167802Sjkim 9479193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 9480126372Snjlmuch faster because it doesn't have all the overhead of a full 9481126372Snjlsemaphore implementation. 9482102550Siwasaki 9483104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 9484114237Snjladdress space can block forever if it is the first access to the 9485114237Snjlspace. 9486102550Siwasaki 9487102550Siwasaki------------------------------------------- 9488102550SiwasakiSummary of changes for this label: 06_02_00 9489102550Siwasaki 9490102550SiwasakiSupport for environments that cannot handle unaligned data 9491114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 9492193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 9493126372Snjlbeen added (via configurable macros) in these three areas: - 9494114237SnjlTransfer of data from the raw AML byte stream is done via byte 9495193267Sjkimmoves instead of word/dword/qword moves. - External objects are 9496126372Snjlaligned within the user buffer, including package elements (sub- 9497193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 9498126372Snjldone byte-wise. 9499102550Siwasaki 9500102550SiwasakiThe Store operator was modified to mimic Microsoft's 9501102550Siwasakiimplementation when storing to a Buffer Field. 9502102550Siwasaki 9503102550SiwasakiAdded a check of the BM_STS bit before entering C3. 9504102550Siwasaki 9505114237SnjlThe methods subdirectory has been obsoleted and removed. A new 9506114237Snjlfile, cmeval.c subsumes the functionality. 9507102550Siwasaki 9508102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 9509102550Siwasakimakefile is under the acpiexec directory. 9510