changes.txt revision 213806
1117521Snjl---------------------------------------- 2213806Sjkim13 October 2010. Summary of changes for version 20101013: 3213806Sjkim 4213806SjkimThis release is available at www.acpica.org/downloads 5213806Sjkim 6213806Sjkim1) ACPI CA Core Subsystem: 7213806Sjkim 8213806SjkimAdded support to clear the PCIEXP_WAKE event. When clearing ACPI events, now 9213806Sjkimclear the PCIEXP_WAKE_STS bit in the ACPI PM1 Status Register, via 10213806SjkimHwClearAcpiStatus. Original change from Colin King. ACPICA BZ 880. 11213806Sjkim 12213806SjkimChanged the type of the predefined namespace object _TZ from ThermalZone to 13213806SjkimDevice. This was found to be confusing to the host software that processes 14213806Sjkimthe various thermal zones, since _TZ is not really a ThermalZone. However, a 15213806SjkimNotify() can still be performed on it. ACPICA BZ 876. Suggestion from Rui 16213806SjkimZhang. 17213806Sjkim 18213806SjkimAdded Windows Vista SP2 to the list of supported _OSI strings. The actual 19213806Sjkimstring is "Windows 2006 SP2". 20213806Sjkim 21213806SjkimEliminated duplicate code in AcpiUtExecute* functions. Now that the nsrepair 22213806Sjkimcode automatically repairs _HID-related strings, this type of code is no 23213806Sjkimlonger needed in Execute_HID, Execute_CID, and Execute_UID. ACPICA BZ 878. 24213806Sjkim 25213806SjkimExample Code and Data Size: These are the sizes for the OS-independent 26213806Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 27213806Sjkimdebug version of the code includes the debug output trace mechanism and has a 28213806Sjkimmuch larger code and data size. 29213806Sjkim 30213806Sjkim Previous Release: 31213806Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 32213806Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 33213806Sjkim Current Release: 34213806Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 35213806Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 36213806Sjkim 37213806Sjkim2) iASL Compiler/Disassembler and Tools: 38213806Sjkim 39213806SjkimiASL: Implemented additional compile-time validation for _HID strings. The 40213806Sjkimnon-hex prefix (such as "PNP" or "ACPI") must be uppercase, and the length of 41213806Sjkimthe string must be exactly seven or eight characters. For both _HID and _CID 42213806Sjkimstrings, all characters must be alphanumeric. ACPICA BZ 874. 43213806Sjkim 44213806SjkimiASL: Allow certain "null" resource descriptors. Some BIOS code creates 45213806Sjkimdescriptors that are mostly or all zeros, with the expectation that they will 46213806Sjkimbe filled in at runtime. iASL now allows this as long as there is a "resource 47213806Sjkimtag" (name) associated with the descriptor, which gives the ASL a handle 48213806Sjkimneeded to modify the descriptor. ACPICA BZ 873. 49213806Sjkim 50213806SjkimAdded single-thread support to the generic Unix application OSL. Primarily 51213806Sjkimfor iASL support, this change removes the use of semaphores in the single- 52213806Sjkimthreaded ACPICA tools/applications - increasing performance. The 53213806Sjkim_MULTI_THREADED option was replaced by the (reverse) ACPI_SINGLE_THREADED 54213806Sjkimoption. ACPICA BZ 879. 55213806Sjkim 56213806SjkimAcpiExec: several fixes for the 64-bit version. Adds XSDT support and support 57213806Sjkimfor 64-bit DSDT/FACS addresses in the FADT. Lin Ming. 58213806Sjkim 59213806SjkimiASL: Moved all compiler messages to a new file, aslmessages.h. 60213806Sjkim 61213806Sjkim---------------------------------------- 62212761Sjkim15 September 2010. Summary of changes for version 20100915: 63212761Sjkim 64212761SjkimThis release is available at www.acpica.org/downloads 65212761Sjkim 66212761Sjkim1) ACPI CA Core Subsystem: 67212761Sjkim 68212761SjkimRemoved the AcpiOsDerivePciId OSL interface. The various host implementations 69212761Sjkimof this function were not OS-dependent and are now obsolete and can be 70212761Sjkimremoved from all host OSLs. This function has been replaced by 71212761SjkimAcpiHwDerivePciId, which is now part of the ACPICA core code. 72212761SjkimAcpiHwDerivePciId has been implemented without recursion. Adds one new 73212761Sjkimmodule, hwpci.c. ACPICA BZ 857. 74212761Sjkim 75212761SjkimImplemented a dynamic repair for _HID and _CID strings. The following 76212761Sjkimproblems are now repaired at runtime: 1) Remove a leading asterisk in the 77212761Sjkimstring, and 2) the entire string is uppercased. Both repairs are in 78212761Sjkimaccordance with the ACPI specification and will simplify host driver code. 79212761SjkimACPICA BZ 871. 80212761Sjkim 81212761SjkimThe ACPI_THREAD_ID type is no longer configurable, internally it is now 82212761Sjkimalways UINT64. This simplifies the ACPICA code, especially any printf output. 83212761SjkimUINT64 is the only common data type for all thread_id types across all 84212761Sjkimoperating systems. It is now up to the host OSL to cast the native thread_id 85212761Sjkimtype to UINT64 before returning the value to ACPICA (via AcpiOsGetThreadId). 86212761SjkimLin Ming, Bob Moore. 87212761Sjkim 88212761SjkimAdded the ACPI_INLINE type to enhance the ACPICA configuration. The "inline" 89212761Sjkimkeyword is not standard across compilers, and this type allows inline to be 90212761Sjkimconfigured on a per-compiler basis. Lin Ming. 91212761Sjkim 92212761SjkimMade the system global AcpiGbl_SystemAwakeAndRunning publically available. 93212761SjkimAdded an extern for this boolean in acpixf.h. Some hosts utilize this value 94212761Sjkimduring suspend/restore operations. ACPICA BZ 869. 95212761Sjkim 96212761SjkimAll code that implements error/warning messages with the "ACPI:" prefix has 97212761Sjkimbeen moved to a new module, utxferror.c. 98212761Sjkim 99212761SjkimThe UINT64_OVERLAY was moved to utmath.c, which is the only module where it 100212761Sjkimis used. ACPICA BZ 829. Lin Ming, Bob Moore. 101212761Sjkim 102212761SjkimExample Code and Data Size: These are the sizes for the OS-independent 103212761Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 104212761Sjkimdebug version of the code includes the debug output trace mechanism and has a 105212761Sjkimmuch larger code and data size. 106212761Sjkim 107212761Sjkim Previous Release: 108212761Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 109212761Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 110212761Sjkim Current Release: 111212761Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 112212761Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 113212761Sjkim 114212761Sjkim2) iASL Compiler/Disassembler and Tools: 115212761Sjkim 116212761SjkimiASL/Disassembler: Write ACPI errors to stderr instead of the output file. 117212761SjkimThis keeps the output files free of random error messages that may originate 118212761Sjkimfrom within the namespace/interpreter code. Used this opportunity to merge 119212761Sjkimall ACPI:-style messages into a single new module, utxferror.c. ACPICA BZ 120212761Sjkim866. Lin Ming, Bob Moore. 121212761Sjkim 122212761SjkimTools: update some printfs for ansi warnings on size_t. Handle width change 123212761Sjkimof size_t on 32-bit versus 64-bit generations. Lin Ming. 124212761Sjkim 125212761Sjkim---------------------------------------- 126210976Sjkim06 August 2010. Summary of changes for version 20100806: 127210976Sjkim 128210976Sjkim1) ACPI CA Core Subsystem: 129210976Sjkim 130210976SjkimDesigned and implemented a new host interface to the _OSI support code. This 131210976Sjkimwill allow the host to dynamically add or remove multiple _OSI strings, as 132210976Sjkimwell as install an optional handler that is called for each _OSI invocation. 133210976SjkimAlso added a new AML debugger command, 'osi' to display and modify the global 134210976Sjkim_OSI string table, and test support in the AcpiExec utility. See the ACPICA 135210976Sjkimreference manual for full details. Lin Ming, Bob Moore. ACPICA BZ 836. 136210976SjkimNew Functions: 137210976Sjkim AcpiInstallInterface - Add an _OSI string. 138210976Sjkim AcpiRemoveInterface - Delete an _OSI string. 139210976Sjkim AcpiInstallInterfaceHandler - Install optional _OSI handler. 140210976SjkimObsolete Functions: 141210976Sjkim AcpiOsValidateInterface - no longer used. 142210976SjkimNew Files: 143210976Sjkim source/components/utilities/utosi.c 144210976Sjkim 145210976SjkimRe-introduced the support to enable multi-byte transfers for Embedded 146210976SjkimController (EC) operation regions. A reported problem was found to be a bug 147210976Sjkimin the host OS, not in the multi-byte support. Previously, the maximum data 148210976Sjkimsize passed to the EC operation region handler was a single byte. There are 149210976Sjkimoften EC Fields larger than one byte that need to be transferred, and it is 150210976Sjkimuseful for the EC driver to lock these as a single transaction. This change 151210976Sjkimenables single transfers larger than 8 bits. This effectively changes the 152210976Sjkimaccess to the EC space from ByteAcc to AnyAcc, and will probably require 153210976Sjkimchanges to the host OS Embedded Controller driver to enable 16/32/64/256-bit 154210976Sjkimtransfers in addition to 8-bit transfers. Alexey Starikovskiy, Lin Ming. 155210976Sjkim 156210976SjkimFixed a problem with the prototype for AcpiOsReadPciConfiguration. The 157210976Sjkimprototype in acpiosxf.h had the output value pointer as a (void *). 158210976SjkimIt should be a (UINT64 *). This may affect some host OSL code. 159210976Sjkim 160210976SjkimFixed a couple problems with the recently modified Linux makefiles for iASL 161210976Sjkimand AcpiExec. These new makefiles place the generated object files in the 162210976Sjkimlocal directory so that there can be no collisions between the files that are 163210976Sjkimshared between them that are compiled with different options. 164210976Sjkim 165210976SjkimExample Code and Data Size: These are the sizes for the OS-independent 166210976Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 167210976Sjkimdebug version of the code includes the debug output trace mechanism and has a 168210976Sjkimmuch larger code and data size. 169210976Sjkim 170210976Sjkim Previous Release: 171210976Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 172210976Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 173210976Sjkim Current Release: 174210976Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 175210976Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 176210976Sjkim 177210976Sjkim2) iASL Compiler/Disassembler and Tools: 178210976Sjkim 179210976SjkimiASL/Disassembler: Added a new option (-da, "disassemble all") to load the 180210976Sjkimnamespace from and disassemble an entire group of AML files. Useful for 181210976Sjkimloading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn) and 182210976Sjkimdisassembling with one simple command. ACPICA BZ 865. Lin Ming. 183210976Sjkim 184210976SjkimiASL: Allow multiple invocations of -e option. This change allows multiple 185210976Sjkimuses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ 834. 186210976SjkimLin Ming. 187210976Sjkim 188210976Sjkim---------------------------------------- 189209746Sjkim02 July 2010. Summary of changes for version 20100702: 190209746Sjkim 191209746Sjkim1) ACPI CA Core Subsystem: 192209746Sjkim 193209746SjkimImplemented several updates to the recently added GPE reference count 194209746Sjkimsupport. The model for "wake" GPEs is changing to give the host OS complete 195209746Sjkimcontrol of these GPEs. Eventually, the ACPICA core will not execute any _PRW 196209746Sjkimmethods, since the host already must execute them. Also, additional changes 197209746Sjkimwere made to help ensure that the reference counts are kept in proper 198209746Sjkimsynchronization with reality. Rafael J. Wysocki. 199209746Sjkim 200209746Sjkim1) Ensure that GPEs are not enabled twice during initialization. 201209746Sjkim2) Ensure that GPE enable masks stay in sync with the reference count. 202209746Sjkim3) Do not inadvertently enable GPEs when writing GPE registers. 203209746Sjkim4) Remove the internal wake reference counter and add new AcpiGpeWakeup 204209746Sjkiminterface. This interface will set or clear individual GPEs for wakeup. 205209746Sjkim5) Remove GpeType argument from AcpiEnable and AcpiDisable. These interfaces 206209746Sjkimare now used for "runtime" GPEs only. 207209746Sjkim 208209746SjkimChanged the behavior of the GPE install/remove handler interfaces. The GPE is 209209746Sjkimno longer disabled during this process, as it was found to cause problems on 210209746Sjkimsome machines. Rafael J. Wysocki. 211209746Sjkim 212209746SjkimReverted a change introduced in version 20100528 to enable Embedded 213209746SjkimController multi-byte transfers. This change was found to cause problems with 214209746SjkimIndex Fields and possibly Bank Fields. It will be reintroduced when these 215209746Sjkimproblems have been resolved. 216209746Sjkim 217209746SjkimFixed a problem with references to Alias objects within Package Objects. A 218209746Sjkimreference to an Alias within the definition of a Package was not always 219209746Sjkimresolved properly. Aliases to objects like Processors, Thermal zones, etc. 220209746Sjkimwere resolved to the actual object instead of a reference to the object as it 221209746Sjkimshould be. Package objects are only allowed to contain integer, string, 222209746Sjkimbuffer, package, and reference objects. Redhat bugzilla 608648. 223209746Sjkim 224209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 225209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 226209746Sjkimdebug version of the code includes the debug output trace mechanism and has a 227209746Sjkimmuch larger code and data size. 228209746Sjkim 229209746Sjkim Previous Release: 230209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 231209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 232209746Sjkim Current Release: 233209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 234209746Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 235209746Sjkim 236209746Sjkim2) iASL Compiler/Disassembler and Tools: 237209746Sjkim 238209746SjkimiASL: Implemented a new compiler subsystem to allow definition and 239209746Sjkimcompilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc. These 240209746Sjkimare called "ACPI Data Tables", and the new compiler is the "Data Table 241209746SjkimCompiler". This compiler is intended to simplify the existing error-prone 242209746Sjkimprocess of creating these tables for the BIOS, as well as allowing the 243209746Sjkimdisassembly, modification, recompilation, and override of existing ACPI data 244209746Sjkimtables. See the iASL User Guide for detailed information. 245209746Sjkim 246209746SjkimiASL: Implemented a new Template Generator option in support of the new Data 247209746SjkimTable Compiler. This option will create examples of all known ACPI tables 248209746Sjkimthat can be used as the basis for table development. See the iASL 249209746Sjkimdocumentation and the -T option. 250209746Sjkim 251209746SjkimDisassembler and headers: Added support for the WDDT ACPI table (Watchdog 252209746SjkimDescriptor Table). 253209746Sjkim 254209746SjkimUpdated the Linux makefiles for iASL and AcpiExec to place the generated 255209746Sjkimobject files in the local directory so that there can be no collisions 256209746Sjkimbetween the shared files between them that are generated with different 257209746Sjkimoptions. 258209746Sjkim 259209746SjkimAdded support for Mac OS X in the Unix OSL used for iASL and AcpiExec. Use 260209746Sjkimthe #define __APPLE__ to enable this support. 261209746Sjkim 262209746Sjkim---------------------------------------- 263209746Sjkim28 May 2010. Summary of changes for version 20100528: 264209746Sjkim 265209746SjkimNote: The ACPI 4.0a specification was released on April 5, 2010 and is 266209746Sjkimavailable at www.acpi.info. This is primarily an errata release. 267209746Sjkim 268209746Sjkim1) ACPI CA Core Subsystem: 269209746Sjkim 270209746SjkimUndefined ACPI tables: We are looking for the definitions for the following 271209746SjkimACPI tables that have been seen in the field: ATKG, IEIT, GSCI. 272209746Sjkim 273209746SjkimImplemented support to enable multi-byte transfers for Embedded Controller 274209746Sjkim(EC) operation regions. Previously, the maximum data size passed to the EC 275209746Sjkimoperation region handler was a single byte. There are often EC Fields larger 276209746Sjkimthan one byte that need to be transferred, and it is useful for the EC driver 277209746Sjkimto lock these as a single transaction. This change enables single transfers 278209746Sjkimlarger than 8 bits. This effectively changes the access to the EC space from 279209746SjkimByteAcc to AnyAcc, and will probably require changes to the host OS Embedded 280209746SjkimController driver to enable 16/32/64/256-bit transfers in addition to 8-bit 281209746Sjkimtransfers. Alexey Starikovskiy, Lin Ming 282209746Sjkim 283209746SjkimImplemented a performance enhancement for namespace search and access. This 284209746Sjkimchange enhances the performance of namespace searches and walks by adding a 285209746Sjkimbackpointer to the parent in each namespace node. On large namespaces, this 286209746Sjkimchange can improve overall ACPI performance by up to 9X. Adding a pointer to 287209746Sjkimeach namespace node increases the overall size of the internal namespace by 288209746Sjkimabout 5%, since each namespace entry usually consists of both a namespace 289209746Sjkimnode and an ACPI operand object. However, this is the first growth of the 290209746Sjkimnamespace in ten years. ACPICA bugzilla 817. Alexey Starikovskiy. 291209746Sjkim 292209746SjkimImplemented a performance optimization that reduces the number of namespace 293209746Sjkimwalks. On control method exit, only walk the namespace if the method is known 294209746Sjkimto have created namespace objects outside of its local scope. Previously, the 295209746Sjkimentire namespace was traversed on each control method exit. This change can 296209746Sjkimimprove overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob Moore. 297209746Sjkim 298209746SjkimAdded support to truncate I/O addresses to 16 bits for Windows compatibility. 299209746SjkimSome ASL code has been seen in the field that inadvertently has bits set 300209746Sjkimabove bit 15. This feature is optional and is enabled if the BIOS requests 301209746Sjkimany Windows OSI strings. It can also be enabled by the host OS. Matthew 302209746SjkimGarrett, Bob Moore. 303209746Sjkim 304209746SjkimAdded support to limit the maximum time for the ASL Sleep() operator. To 305209746Sjkimprevent accidental deep sleeps, limit the maximum time that Sleep() will 306209746Sjkimactually sleep. Configurable, the default maximum is two seconds. ACPICA 307209746Sjkimbugzilla 854. 308209746Sjkim 309209746SjkimAdded run-time validation support for the _WDG and_WED Microsoft predefined 310209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 311209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 312209746Sjkim 313209746SjkimExpanded all statistic counters used during namespace and device 314209746Sjkiminitialization from 16 to 32 bits in order to support very large namespaces. 315209746Sjkim 316209746SjkimReplaced all instances of %d in printf format specifiers with %u since nearly 317209746Sjkimall integers in ACPICA are unsigned. 318209746Sjkim 319209746SjkimFixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly returned 320209746Sjkimas AE_NO_HANDLER. 321209746Sjkim 322209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 323209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 324209746Sjkimdebug version of the code includes the debug output trace mechanism and has a 325209746Sjkimmuch larger code and data size. 326209746Sjkim 327209746Sjkim Previous Release: 328209746Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 329209746Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 330209746Sjkim Current Release: 331209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 332209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 333209746Sjkim 334209746Sjkim2) iASL Compiler/Disassembler and Tools: 335209746Sjkim 336209746SjkimiASL: Added compiler support for the _WDG and_WED Microsoft predefined 337209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 338209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 339209746Sjkim 340209746SjkimAcpiExec: added option to disable the memory tracking mechanism. The -dt 341209746Sjkimoption will disable the tracking mechanism, which improves performance 342209746Sjkimconsiderably. 343209746Sjkim 344209746SjkimAcpiExec: Restructured the command line options into -d (disable) and -e 345209746Sjkim(enable) options. 346209746Sjkim 347209746Sjkim---------------------------------------- 348207344Sjkim28 April 2010. Summary of changes for version 20100428: 349207344Sjkim 350207344Sjkim1) ACPI CA Core Subsystem: 351207344Sjkim 352207344SjkimImplemented GPE support for dynamically loaded ACPI tables. For all GPEs, 353207344Sjkimincluding FADT-based and GPE Block Devices, execute any _PRW methods in the 354207344Sjkimnew table, and process any _Lxx/_Exx GPE methods in the new table. Any 355207344Sjkimruntime GPE that is referenced by an _Lxx/_Exx method in the new table is 356207344Sjkimimmediately enabled. Handles the FADT-defined GPEs as well as GPE Block 357207344SjkimDevices. Provides compatibility with other ACPI implementations. Two new 358207344Sjkimfiles added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob Moore. 359207344Sjkim 360207344SjkimFixed a regression introduced in version 20100331 within the table manager 361207344Sjkimwhere initial table loading could fail. This was introduced in the fix for 362207344SjkimAcpiReallocateRootTable. Also, renamed some of fields in the table manager 363207344Sjkimdata structures to clarify their meaning and use. 364207344Sjkim 365207344SjkimFixed a possible allocation overrun during internal object copy in 366207344SjkimAcpiUtCopySimpleObject. The original code did not correctly handle the case 367207344Sjkimwhere the object to be copied was a namespace node. Lin Ming. ACPICA BZ 847. 368207344Sjkim 369207344SjkimUpdated the allocation dump routine, AcpiUtDumpAllocation and fixed a 370207344Sjkimpossible access beyond end-of-allocation. Also, now fully validate descriptor 371207344Sjkim(size and type) before output. Lin Ming, Bob Moore. ACPICA BZ 847 372207344Sjkim 373207344SjkimExample Code and Data Size: These are the sizes for the OS-independent 374207344Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 375207344Sjkimdebug version of the code includes the debug output trace mechanism and has a 376207344Sjkimmuch larger code and data size. 377207344Sjkim 378207344Sjkim Previous Release: 379207344Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 380207344Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 381207344Sjkim Current Release: 382207344Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 383207344Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 384207344Sjkim 385207344Sjkim2) iASL Compiler/Disassembler and Tools: 386207344Sjkim 387207344SjkimiASL: Implemented Min/Max/Len/Gran validation for address resource 388207344Sjkimdescriptors. This change implements validation for the address fields that 389207344Sjkimare common to all address-type resource descriptors. These checks are 390207344Sjkimimplemented: Checks for valid Min/Max, length within the Min/Max window, 391207344Sjkimvalid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as per 392207344Sjkimtable 6-40 in the ACPI 4.0a specification. Also split the large aslrestype1.c 393207344Sjkimand aslrestype2.c files into five new files. ACPICA BZ 840. 394207344Sjkim 395207344SjkimiASL: Added support for the _Wxx predefined names. This support was missing 396207344Sjkimand these names were not recognized by the compiler as valid predefined 397207344Sjkimnames. ACPICA BZ 851. 398207344Sjkim 399207344SjkimiASL: Added an error for all predefined names that are defined to return no 400207344Sjkimvalue and thus must be implemented as Control Methods. These include all of 401207344Sjkimthe _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous 402207344Sjkimnames such as _DIS, _INI, _IRC, _OFF, _ON, and _PSx. ACPICA BZ 850, 856. 403207344Sjkim 404207344SjkimiASL: Implemented the -ts option to emit hex AML data in ASL format, as an 405207344SjkimASL Buffer. Allows ACPI tables to be easily included within ASL files, to be 406207344Sjkimdynamically loaded via the Load() operator. Also cleaned up output for the - 407207344Sjkimta and -tc options. ACPICA BZ 853. 408207344Sjkim 409207344SjkimTests: Added a new file with examples of extended iASL error checking. 410207344SjkimDemonstrates the advanced error checking ability of the iASL compiler. 411207344SjkimAvailable at tests/misc/badcode.asl. 412207344Sjkim 413207344Sjkim---------------------------------------- 414206117Sjkim31 March 2010. Summary of changes for version 20100331: 415206117Sjkim 416206117Sjkim1) ACPI CA Core Subsystem: 417206117Sjkim 418206117SjkimCompleted a major update for the GPE support in order to improve support for 419206117Sjkimshared GPEs and to simplify both host OS and ACPICA code. Added a reference 420206117Sjkimcount mechanism to support shared GPEs that require multiple device drivers. 421206117SjkimSeveral external interfaces have changed. One external interface has been 422206117Sjkimremoved. One new external interface was added. Most of the GPE external 423206117Sjkiminterfaces now use the GPE spinlock instead of the events mutex (and the 424206117SjkimFlags parameter for many GPE interfaces has been removed.) See the updated 425206117SjkimACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael 426206117SjkimWysocki. ACPICA BZ 831. 427206117Sjkim 428206117SjkimChanged: 429206117Sjkim AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus 430206117SjkimRemoved: 431206117Sjkim AcpiSetGpeType 432206117SjkimNew: 433206117Sjkim AcpiSetGpe 434206117Sjkim 435206117SjkimImplemented write support for DataTable operation regions. These regions are 436206117Sjkimdefined via the DataTableRegion() operator. Previously, only read support was 437206117Sjkimimplemented. The ACPI specification allows DataTableRegions to be read/write, 438206117Sjkimhowever. 439206117Sjkim 440206117SjkimImplemented a new subsystem option to force a copy of the DSDT to local 441206117Sjkimmemory. Optionally copy the entire DSDT to local memory (instead of simply 442206117Sjkimmapping it.) There are some (albeit very rare) BIOSs that corrupt or replace 443206117Sjkimthe original DSDT, creating the need for this option. Default is FALSE, do 444206117Sjkimnot copy the DSDT. 445206117Sjkim 446206117SjkimImplemented detection of a corrupted or replaced DSDT. This change adds 447206117Sjkimsupport to detect a DSDT that has been corrupted and/or replaced from outside 448206117Sjkimthe OS (by firmware). This is typically catastrophic for the system, but has 449206117Sjkimbeen seen on some machines. Once this problem has been detected, the DSDT 450206117Sjkimcopy option can be enabled via system configuration. Lin Ming, Bob Moore. 451206117Sjkim 452206117SjkimFixed two problems with AcpiReallocateRootTable during the root table copy. 453206117SjkimWhen copying the root table to the new allocation, the length used was 454206117Sjkimincorrect. The new size was used instead of the current table size, meaning 455206117Sjkimtoo much data was copied. Also, the count of available slots for ACPI tables 456206117Sjkimwas not set correctly. Alexey Starikovskiy, Bob Moore. 457206117Sjkim 458206117SjkimExample Code and Data Size: These are the sizes for the OS-independent 459206117Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 460206117Sjkimdebug version of the code includes the debug output trace mechanism and has a 461206117Sjkimmuch larger code and data size. 462206117Sjkim 463206117Sjkim Previous Release: 464206117Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 465206117Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 466206117Sjkim Current Release: 467206117Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 468206117Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 469206117Sjkim 470206117Sjkim2) iASL Compiler/Disassembler and Tools: 471206117Sjkim 472206117SjkimiASL: Implement limited typechecking for values returned from predefined 473206117Sjkimcontrol methods. The type of any returned static (unnamed) object is now 474206117Sjkimvalidated. For example, Return(1). ACPICA BZ 786. 475206117Sjkim 476206117SjkimiASL: Fixed a predefined name object verification regression. Fixes a problem 477206117Sjkimintroduced in version 20100304. An error is incorrectly generated if a 478206117Sjkimpredefined name is declared as a static named object with a value defined 479206117Sjkimusing the keywords "Zero", "One", or "Ones". Lin Ming. 480206117Sjkim 481206117SjkimiASL: Added Windows 7 support for the -g option (get local ACPI tables) by 482206117Sjkimreducing the requested registry access rights. ACPICA BZ 842. 483206117Sjkim 484206117SjkimDisassembler: fixed a possible fault when generating External() statements. 485206117SjkimIntroduced in commit ae7d6fd: Properly handle externals with parent-prefix 486206117Sjkim(carat). Fixes a string length allocation calculation. Lin Ming. 487206117Sjkim 488206117Sjkim---------------------------------------- 489204773Sjkim04 March 2010. Summary of changes for version 20100304: 490204773Sjkim 491204773Sjkim1) ACPI CA Core Subsystem: 492204773Sjkim 493204773SjkimFixed a possible problem with the AML Mutex handling function 494204773SjkimAcpiExReleaseMutex where the function could fault under the very rare 495204773Sjkimcondition when the interpreter has blocked, the interpreter lock is released, 496204773Sjkimthe interpreter is then reentered via the same thread, and attempts to 497204773Sjkimacquire an AML mutex that was previously acquired. FreeBSD report 140979. Lin 498204773SjkimMing. 499204773Sjkim 500204773SjkimImplemented additional configuration support for the AML "Debug Object". 501204773SjkimOutput from the debug object can now be enabled via a global variable, 502204773SjkimAcpiGbl_EnableAmlDebugObject. This will assist with remote machine debugging. 503204773SjkimThis debug output is now available in the release version of ACPICA instead 504204773Sjkimof just the debug version. Also, the entire debug output module can now be 505204773Sjkimconfigured out of the ACPICA build if desired. One new file added, 506204773Sjkimexecuter/exdebug.c. Lin Ming, Bob Moore. 507204773Sjkim 508204773SjkimAdded header support for the ACPI MCHI table (Management Controller Host 509204773SjkimInterface Table). This table was added in ACPI 4.0, but the defining document 510204773Sjkimhas only recently become available. 511204773Sjkim 512204773SjkimStandardized output of integer values for ACPICA warnings/errors. Always use 513204773Sjkim0x prefix for hex output, always use %u for unsigned integer decimal output. 514204773SjkimAffects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about 400 515204773Sjkiminvocations.) These invocations were converted from the original 516204773SjkimACPI_DEBUG_PRINT invocations and were not consistent. ACPICA BZ 835. 517204773Sjkim 518204773SjkimExample Code and Data Size: These are the sizes for the OS-independent 519204773Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 520204773Sjkimdebug version of the code includes the debug output trace mechanism and has a 521204773Sjkimmuch larger code and data size. 522204773Sjkim 523204773Sjkim Previous Release: 524204773Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 525204773Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 526204773Sjkim Current Release: 527204773Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 528204773Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 529204773Sjkim 530204773Sjkim2) iASL Compiler/Disassembler and Tools: 531204773Sjkim 532204773SjkimiASL: Implemented typechecking support for static (non-control method) 533204773Sjkimpredefined named objects that are declared with the Name() operator. For 534204773Sjkimexample, the type of this object is now validated to be of type Integer: 535204773SjkimName(_BBN, 1). This change migrates the compiler to using the core predefined 536204773Sjkimname table instead of maintaining a local version. Added a new file, 537204773Sjkimaslpredef.c. ACPICA BZ 832. 538204773Sjkim 539204773SjkimDisassembler: Added support for the ACPI 4.0 MCHI table. 540204773Sjkim 541204773Sjkim---------------------------------------- 542202771Sjkim21 January 2010. Summary of changes for version 20100121: 543202771Sjkim 544202771Sjkim1) ACPI CA Core Subsystem: 545202771Sjkim 546202771SjkimAdded the 2010 copyright to all module headers and signons. This affects 547202771Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, the 548202771Sjkimtools/utilities, and the test suites. 549202771Sjkim 550202771SjkimImplemented a change to the AcpiGetDevices interface to eliminate unnecessary 551202771Sjkiminvocations of the _STA method. In the case where a specific _HID is 552202771Sjkimrequested, do not run _STA until a _HID match is found. This eliminates 553202771Sjkimpotentially dozens of _STA calls during a search for a particular device/HID, 554202771Sjkimwhich in turn can improve boot times. ACPICA BZ 828. Lin Ming. 555202771Sjkim 556202771SjkimImplemented an additional repair for predefined method return values. Attempt 557202771Sjkimto repair unexpected NULL elements within returned Package objects. Create an 558202771SjkimInteger of value zero, a NULL String, or a zero-length Buffer as appropriate. 559202771SjkimACPICA BZ 818. Lin Ming, Bob Moore. 560202771Sjkim 561202771SjkimRemoved the obsolete ACPI_INTEGER data type. This type was introduced as the 562202771Sjkimcode was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with 563202771Sjkim64-bit AML integers). It is now obsolete and this change removes it from the 564202771SjkimACPICA code base, replaced by UINT64. The original typedef has been retained 565202771Sjkimfor now for compatibility with existing device driver code. ACPICA BZ 824. 566202771Sjkim 567202771SjkimRemoved the unused UINT32_STRUCT type, and the obsolete Integer64 field in 568202771Sjkimthe parse tree object. 569202771Sjkim 570202771SjkimAdded additional warning options for the gcc-4 generation. Updated the source 571202771Sjkimaccordingly. This includes some code restructuring to eliminate unreachable 572202771Sjkimcode, elimination of some gotos, elimination of unused return values, some 573202771Sjkimadditional casting, and removal of redundant declarations. 574202771Sjkim 575202771SjkimExample Code and Data Size: These are the sizes for the OS-independent 576202771Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 577202771Sjkimdebug version of the code includes the debug output trace mechanism and has a 578202771Sjkimmuch larger code and data size. 579202771Sjkim 580202771Sjkim Previous Release: 581202771Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 582202771Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 583202771Sjkim Current Release: 584202771Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 585202771Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 586202771Sjkim 587202771Sjkim2) iASL Compiler/Disassembler and Tools: 588202771Sjkim 589202771SjkimNo functional changes for this release. 590202771Sjkim 591202771Sjkim---------------------------------------- 592200553Sjkim14 December 2009. Summary of changes for version 20091214: 593200553Sjkim 594200553Sjkim1) ACPI CA Core Subsystem: 595200553Sjkim 596200553SjkimEnhanced automatic data type conversions for predefined name repairs. This 597200553Sjkimchange expands the automatic repairs/conversions for predefined name return 598200553Sjkimvalues to make Integers, Strings, and Buffers fully interchangeable. Also, a 599200553SjkimBuffer can be converted to a Package of Integers if necessary. The nsrepair.c 600200553Sjkimmodule was completely restructured. Lin Ming, Bob Moore. 601200553Sjkim 602200553SjkimImplemented automatic removal of null package elements during predefined name 603200553Sjkimrepairs. This change will automatically remove embedded and trailing NULL 604200553Sjkimpackage elements from returned package objects that are defined to contain a 605200553Sjkimvariable number of sub-packages. The driver is then presented with a package 606200553Sjkimwith no null elements to deal with. ACPICA BZ 819. 607200553Sjkim 608200553SjkimImplemented a repair for the predefined _FDE and _GTM names. The expected 609200553Sjkimreturn value for both names is a Buffer of 5 DWORDs. This repair fixes two 610200553Sjkimpossible problems (both seen in the field), where a package of integers is 611200553Sjkimreturned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim. 612200553Sjkim 613200553SjkimImplemented additional module-level code support. This change will properly 614200553Sjkimexecute module-level code that is not at the root of the namespace (under a 615200553SjkimDevice object, etc.). Now executes the code within the current scope instead 616200553Sjkimof the root. ACPICA BZ 762. Lin Ming. 617200553Sjkim 618200553SjkimFixed possible mutex acquisition errors when running _REG methods. Fixes a 619200553Sjkimproblem where mutex errors can occur when running a _REG method that is in 620200553Sjkimthe same scope as a method-defined operation region or an operation region 621200553Sjkimunder a module-level IF block. This type of code is rare, so the problem has 622200553Sjkimnot been seen before. ACPICA BZ 826. Lin Ming, Bob Moore. 623200553Sjkim 624200553SjkimFixed a possible memory leak during module-level code execution. An object 625200553Sjkimcould be leaked for each block of executed module-level code if the 626200553Sjkiminterpreter slack mode is enabled This change deletes any implicitly returned 627200553Sjkimobject from the module-level code block. Lin Ming. 628200553Sjkim 629200553SjkimRemoved messages for successful predefined repair(s). The repair mechanism 630200553Sjkimwas considered too wordy. Now, messages are only unconditionally emitted if 631200553Sjkimthe return object cannot be repaired. Existing messages for successful 632200553Sjkimrepairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. 633200553Sjkim 634200553SjkimExample Code and Data Size: These are the sizes for the OS-independent 635200553Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 636200553Sjkimdebug version of the code includes the debug output trace mechanism and has a 637200553Sjkimmuch larger code and data size. 638200553Sjkim 639200553Sjkim Previous Release: 640200553Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 641200553Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 642200553Sjkim Current Release: 643200553Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 644200553Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 645200553Sjkim 646200553Sjkim2) iASL Compiler/Disassembler and Tools: 647200553Sjkim 648200553SjkimiASL: Fixed a regression introduced in 20091112 where intermediate .SRC files 649200553Sjkimwere no longer automatically removed at the termination of the compile. 650200553Sjkim 651200553Sjkimacpiexec: Implemented the -f option to specify default region fill value. 652200553SjkimThis option specifies the value used to initialize buffers that simulate 653200553Sjkimoperation regions. Default value is zero. Useful for debugging problems that 654200553Sjkimdepend on a specific initial value for a region or field. 655200553Sjkim 656200553Sjkim---------------------------------------- 657199337Sjkim12 November 2009. Summary of changes for version 20091112: 658199337Sjkim 659199337Sjkim1) ACPI CA Core Subsystem: 660199337Sjkim 661199337SjkimImplemented a post-order callback to AcpiWalkNamespace. The existing 662199337Sjkiminterface only has a pre-order callback. This change adds an additional 663199337Sjkimparameter for a post-order callback which will be more useful for bus scans. 664199337SjkimACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference. 665199337Sjkim 666199337SjkimModified the behavior of the operation region memory mapping cache for 667199337SjkimSystemMemory. Ensure that the memory mappings created for operation regions 668199337Sjkimdo not cross 4K page boundaries. Crossing a page boundary while mapping 669199337Sjkimregions can cause kernel warnings on some hosts if the pages have different 670199337Sjkimattributes. Such regions are probably BIOS bugs, and this is the workaround. 671199337SjkimLinux BZ 14445. Lin Ming. 672199337Sjkim 673199337SjkimImplemented an automatic repair for predefined methods that must return 674199337Sjkimsorted lists. This change will repair (by sorting) packages returned by _ALR, 675199337Sjkim_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted 676199337Sjkimand do not contain NULL package elements. Adds one new file, 677199337Sjkimnamespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore. 678199337Sjkim 679199337SjkimFixed a possible fault during predefined name validation if a return Package 680199337Sjkimobject contains NULL elements. Also adds a warning if a NULL element is 681199337Sjkimfollowed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may 682199337Sjkiminclude repair or removal of all such NULL elements where possible. 683199337Sjkim 684199337SjkimImplemented additional module-level executable AML code support. This change 685199337Sjkimwill execute module-level code that is not at the root of the namespace 686199337Sjkim(under a Device object, etc.) at table load time. Module-level executable AML 687199337Sjkimcode has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming. 688199337Sjkim 689199337SjkimImplemented a new internal function to create Integer objects. This function 690199337Sjkimsimplifies miscellaneous object creation code. ACPICA BZ 823. 691199337Sjkim 692199337SjkimReduced the severity of predefined repair messages, Warning to Info. Since 693199337Sjkimthe object was successfully repaired, a warning is too severe. Reduced to an 694199337Sjkiminfo message for now. These messages may eventually be changed to debug-only. 695199337SjkimACPICA BZ 812. 696199337Sjkim 697199337SjkimExample Code and Data Size: These are the sizes for the OS-independent 698199337Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 699199337Sjkimdebug version of the code includes the debug output trace mechanism and has a 700199337Sjkimmuch larger code and data size. 701199337Sjkim 702199337Sjkim Previous Release: 703199337Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 704199337Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 705199337Sjkim Current Release: 706199337Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 707199337Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 708199337Sjkim 709199337Sjkim2) iASL Compiler/Disassembler and Tools: 710199337Sjkim 711199337SjkimiASL: Implemented Switch() with While(1) so that Break works correctly. This 712199337Sjkimchange correctly implements the Switch operator with a surrounding While(1) 713199337Sjkimso that the Break operator works as expected. ACPICA BZ 461. Lin Ming. 714199337Sjkim 715199337SjkimiASL: Added a message if a package initializer list is shorter than package 716199337Sjkimlength. Adds a new remark for a Package() declaration if an initializer list 717199337Sjkimexists, but is shorter than the declared length of the package. Although 718199337Sjkimtechnically legal, this is probably a coding error and it is seen in the 719199337Sjkimfield. ACPICA BZ 815. Lin Ming, Bob Moore. 720199337Sjkim 721199337SjkimiASL: Fixed a problem where the compiler could fault after the maximum number 722199337Sjkimof errors was reached (200). 723199337Sjkim 724199337Sjkimacpixtract: Fixed a possible warning for pointer cast if the compiler warning 725199337Sjkimlevel set very high. 726199337Sjkim 727199337Sjkim---------------------------------------- 728198237Sjkim13 October 2009. Summary of changes for version 20091013: 729197104Sjkim 730197104Sjkim1) ACPI CA Core Subsystem: 731197104Sjkim 732198237SjkimFixed a problem where an Operation Region _REG method could be executed more 733198237Sjkimthan once. If a custom address space handler is installed by the host before 734198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 735198237Sjkim_REG methods for that address space could be executed twice. This change 736198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 737198237Sjkim 738198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 739198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 740198237Sjkimoperand object was leaked. Lin Ming. 741198237Sjkim 742198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 743198237Sjkimreturn value is defined as a Field object in the AML, and the field 744198237Sjkimsize is less than or equal to the default width of an integer (32 or 64),_MAT 745198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 746198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 747198237Sjkim 748198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 749198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 750198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 751198237Sjkimambiguity in the ACPI specification. The field should always be a string. 752198237SjkimACPICA now automatically repairs this problem by returning a NULL string 753198237Sjkimwithin the returned Package. ACPICA BZ 807. 754198237Sjkim 755198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 756198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 757198237Sjkimdebug version of the code includes the debug output trace mechanism and has a 758198237Sjkimmuch larger code and data size. 759198237Sjkim 760198237Sjkim Previous Release: 761198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 762198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 763198237Sjkim Current Release: 764198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 765198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 766198237Sjkim 767198237Sjkim2) iASL Compiler/Disassembler and Tools: 768198237Sjkim 769198237SjkimDisassembler: Fixed a problem where references to external symbols that 770198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 771198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 772198237Sjkim 773198237SjkimDisassembler: Restructured the code so that all functions that handle 774198237Sjkimexternal symbols are in a single module. One new file is added, 775198237Sjkimcommon/dmextern.c. 776198237Sjkim 777198237SjkimAML Debugger: Added a max count argument for the Batch command (which 778198237Sjkimexecutes multiple predefined methods within the namespace.) 779198237Sjkim 780198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 781198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 782198237Sjkim 783198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 784198237Sjkimfiles. 785198237Sjkim 786198237Sjkim---------------------------------------- 787198237Sjkim03 September 2009. Summary of changes for version 20090903: 788198237Sjkim 789198237Sjkim1) ACPI CA Core Subsystem: 790198237Sjkim 791197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 792197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 793197104Sjkimtable load time. This support is in addition to the automatic execution of 794197104Sjkim\_SB._INI. Lin Ming. 795197104Sjkim 796197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 797197104Sjkimthe package initializer list is longer than the defined size of the package. 798197104SjkimThis apparently can only happen if the BIOS changes the package size on the 799197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 800197104Sjkiminterpreter will truncate the package to the defined size (and issue an error 801197104Sjkimmessage), but previously could leave the extra objects undeleted if they were 802197104Sjkimpre-created during the argument processing (such is the case if the package 803197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 804197104Sjkim 805197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 806197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 807197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 808197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 809197104Sjkim 810197104SjkimRemoved an extraneous error message for ASL constructs of the form 811197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 812197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 813197104Sjkimemitted when they are encountered. ACPICA BZ 785. 814197104Sjkim 815197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 816197104SjkimPackage object. _DSM can return any type of object, so validation on the 817197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 818197104Sjkim 819197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 820197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 821197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 822197104Sjkimmuch larger code and data size. 823197104Sjkim 824197104Sjkim Previous Release: 825197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 826197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 827197104Sjkim Current Release: 828197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 829197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 830197104Sjkim 831197104Sjkim2) iASL Compiler/Disassembler and Tools: 832197104Sjkim 833197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 834197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 835197104SjkimACPICA BZ 738. 836197104Sjkim 837197104SjkimiASL: Implemented the -I option to specify additional search directories for 838197104Sjkiminclude files. Allows multiple additional search paths for include files. 839197104SjkimDirectories are searched in the order specified on the command line (after 840197104Sjkimthe local directory is searched.) ACPICA BZ 800. 841197104Sjkim 842197104SjkimiASL: Fixed a problem where the full pathname for include files was not 843197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 844197104Sjkimproperly. ACPICA BZ 765. 845197104Sjkim 846197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 847197104Sjkimcontaining additional command line options. ACPICA BZ 801. 848197104Sjkim 849197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 850197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 851197104Sjkimpathname. These features allow all machine tables to be easily loaded and 852197104Sjkimdebugged together. ACPICA BZ 804. 853197104Sjkim 854197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 855197104Sjkimsubtables. 856197104Sjkim 857197104Sjkim---------------------------------------- 858197104Sjkim30 July 2009. Summary of changes for version 20090730: 859197104Sjkim 860197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 861197104Sjkim 862197104Sjkim1) ACPI CA Core Subsystem: 863197104Sjkim 864197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 865197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 866197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 867197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 868197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 869197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 870197104Sjkim 871197104SjkimACPI 4.0: Implemented predefined name validation for all new names. There are 872197104Sjkim31 new names in ACPI 4.0. The predefined validation module was split into two 873197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 874197104Sjkim 875197104SjkimImplemented support for so-called "module-level executable code". This is 876197104Sjkimexecutable AML code that exists outside of any control method and is intended 877197104Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this type 878197104Sjkimof code still exists and is apparently still being created. Blocks of this 879197104Sjkimcode are now detected and executed as intended. Currently, the code blocks 880197104Sjkimmust exist under either an If, Else, or While construct; these are the 881197104Sjkimtypical cases seen in the field. ACPICA BZ 762. Lin Ming. 882197104Sjkim 883197104SjkimImplemented an automatic dynamic repair for predefined names that return 884197104Sjkimnested Package objects. This applies to predefined names that are defined to 885197104Sjkimreturn a variable-length Package of sub-packages. If the number of sub- 886197104Sjkimpackages is one, BIOS code is occasionally seen that creates a simple single 887197104Sjkimpackage with no sub-packages. This code attempts to fix the problem by 888197104Sjkimwrapping a new package object around the existing package. These methods can 889197104Sjkimbe repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 890197104Sjkim790. 891197104Sjkim 892197104SjkimFixed a regression introduced in 20090625 for the AcpiGetDevices interface. 893197104SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA 894197104SjkimBZ 793. 895197104Sjkim 896197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 897197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 898197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 899197104Sjkiminterfaces. 900197104Sjkim 901197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 902197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 903197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 904197104Sjkim(However, some hosts already delete the code that writes this bit, and the 905197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 906197104Sjkim 907197104SjkimFixed a problem where AcpiTerminate could fault if inadvertently called twice 908197104Sjkimin succession. ACPICA BZ 795. 909197104Sjkim 910197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 911197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 912197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 913197104Sjkimmuch larger code and data size. 914197104Sjkim 915197104Sjkim Previous Release: 916197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 917197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 918197104Sjkim Current Release: 919197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 920197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 921197104Sjkim 922197104Sjkim2) iASL Compiler/Disassembler and Tools: 923197104Sjkim 924197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 925197104Sjkimchanges to existing tables. ACPICA BZ 775. 926197104Sjkim 927197104Sjkim---------------------------------------- 928197104Sjkim25 June 2009. Summary of changes for version 20090625: 929197104Sjkim 930197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 931197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 932197104Sjkimcontinue for the next few releases. 933197104Sjkim 934197104Sjkim1) ACPI CA Core Subsystem: 935197104Sjkim 936197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 937197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 938197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 939197104Sjkim773. Lin Ming. 940197104Sjkim 941197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 942197104Sjkimsupport in both the header files and the disassembler. 943197104Sjkim 944197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 945197104SjkimChanges include: 946197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 947197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 948197104Sjkim - Call the _SxW power methods on behalf of a device object. 949197104Sjkim - Determine if a device is a PCI root bridge. 950197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 951197104SjkimThese changes will require an update to all callers of this interface. See 952197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 953197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 954197104Sjkim 955197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 956197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 957197104Sjkimorder to support new ACPI 4.0 tables. These changes will require an update to 958197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 959197104Sjkimdetails. ACPICA BZ 768. 960197104Sjkim 961197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 962197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 963197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 964197104Sjkimparameter, this was removed. ACPICA BZ 778. 965197104Sjkim 966197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 967197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 968197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 969197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 970197104Sjkim 971197104SjkimFixed a problem with predefined method repair code where the code that 972197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 973197104Sjkimthe first time the predefined method is called. The mechanism that disables 974197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 975197104SjkimACPICA BZ 781. 976197104Sjkim 977197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 978197104Sjkimbuffer is automatically converted to an expected string object. 979197104Sjkim 980197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 981197104Sjkimtree head. ACPICA BZ 776. 982197104Sjkim 983197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 984197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 985197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 986197104Sjkimmuch larger code and data size. 987197104Sjkim 988197104Sjkim Previous Release: 989197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 990197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 991197104Sjkim Current Release: 992197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 993197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 994197104Sjkim 995197104Sjkim2) iASL Compiler/Disassembler and Tools: 996197104Sjkim 997197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 998197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 999197104Sjkim 1000197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 1001197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 1002197104Sjkim 1003197104Sjkim---------------------------------------- 1004193267Sjkim21 May 2009. Summary of changes for version 20090521: 1005193267Sjkim 1006193267Sjkim1) ACPI CA Core Subsystem: 1007193267Sjkim 1008193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 1009193267SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be 1010193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 1011193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 1012193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 1013193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 1014193267Sjkimattempts to preserve this bit. 1015193267Sjkim 1016193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 1017193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 1018193267Sjkimensure that each package element is actually a sub-package. 1019193267Sjkim 1020193267SjkimImplemented a new interface to install or override a single control method, 1021193267SjkimAcpiInstallMethod. This interface is useful when debugging in order to repair 1022193267Sjkiman existing method or to install a missing method without having to override 1023193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 1024193267Sjkimexamples. Lin Ming, Bob Moore. 1025193267Sjkim 1026193267SjkimFixed several reference count issues with the DdbHandle object that is 1027193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 1028193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 1029193267SjkimThis is needed because the handle itself may not be deleted after the table 1030193267Sjkimunload, depending on whether it has been stored in a named object by the 1031193267Sjkimcaller. Lin Ming. 1032193267Sjkim 1033193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 1034193267Sjkimmutexes of the same sync level are acquired but then not released in strict 1035193267Sjkimopposite order, the internally maintained Current Sync Level becomes confused 1036193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 1037193267Sjkim 1038193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 1039193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 1040193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 1041193267Sjkimsame as the current sync level. This makes more sense than the previous rule 1042193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 1043193267Sjkimspecification. 1044193267Sjkim 1045193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 1046193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 1047193267SjkimBaumann. 1048193267Sjkim 1049193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 1050193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 1051193267Sjkimthrough the installed region handler as they should. 1052193267Sjkim 1053193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 1054193267Sjkimand reduced code for this frequently used function. 1055193267Sjkim 1056193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1057193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1058193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1059193267Sjkimmuch larger code and data size. 1060193267Sjkim 1061193267Sjkim Previous Release: 1062193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1063193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1064193267Sjkim Current Release: 1065193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 1066193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 1067193267Sjkim 1068193267Sjkim2) iASL Compiler/Disassembler and Tools: 1069193267Sjkim 1070193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 1071193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 1072193267Sjkimafter an invalid sub-table ID. 1073193267Sjkim 1074193267Sjkim---------------------------------------- 1075193267Sjkim22 April 2009. Summary of changes for version 20090422: 1076193267Sjkim 1077193267Sjkim1) ACPI CA Core Subsystem: 1078193267Sjkim 1079193267SjkimFixed a compatibility issue with the recently released I/O port protection 1080193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 1081193267Sjkimsimply ignore the request and do not return an exception (allow the control 1082193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 1083193267Sjkimprotected port, read/write the individual ports that are not protected. Linux 1084193267SjkimBZ 13036. Lin Ming 1085193267Sjkim 1086193267SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it actually 1087193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 1088193267SjkimACPI-defined behavior. 1089193267Sjkim 1090193267SjkimFixed several possible warnings related to the use of the configurable 1091193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 1092193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 1093193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 1094193267SjkimACPICA BZ 766, 767. 1095193267Sjkim 1096193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 1097193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 1098193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 1099193267Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile for 1100193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 1101193267Sjkim 1102193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1103193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1104193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1105193267Sjkimmuch larger code and data size. 1106193267Sjkim 1107193267Sjkim Previous Release: 1108193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1109193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1110193267Sjkim Current Release: 1111193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1112193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1113193267Sjkim 1114193267Sjkim2) iASL Compiler/Disassembler and Tools: 1115193267Sjkim 1116193267SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on 1117193267Sjkimthe 64-bit build. 1118193267Sjkim 1119193267SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could not 1120193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 1121193267Sjkim 1122193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 1123193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 1124193267Sjkimbatch compilations. 1125193267Sjkim 1126193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 1127193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 1128193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 1129193267Sjkim 1130193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 1131193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 1132193267Sjkimutilities from the original acpica git source tree structure. 1133193267Sjkim 1134193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 1135193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 1136193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 1137193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 1138193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 1139193267Sjkimexecute fully on Cygwin. 1140193267Sjkim 1141193267Sjkim---------------------------------------- 1142193267Sjkim20 March 2009. Summary of changes for version 20090320: 1143193267Sjkim 1144193267Sjkim1) ACPI CA Core Subsystem: 1145193267Sjkim 1146193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 1147193267Sjkimunloads. Added a reader/writer locking mechanism to allow multiple concurrent 1148193267Sjkimnamespace walks (readers), but block a dynamic table unload until it can gain 1149193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 1150193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 1151193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 1152193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 1153193267Sjkim 1154193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 1155193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 1156193267Sjkim 1157193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 1158193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 1159193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 1160193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 1161193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 1162193267Sjkimis used instead. This now matches the Windows behavior. 1163193267Sjkim 1164193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 1165193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 1166193267Sjkimcode. Adds a new file, hwvalid.c 1167193267Sjkim 1168193267SjkimFixed a possible extraneous warning message from the FADT support. The 1169193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 1170193267Sjkimdefinitions for a register. 1171193267Sjkim 1172193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 1173193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 1174193267Sjkimto validate the entire address range of an operation region, which could be 1175193267Sjkimincorrect if the range included illegal ports, but fields within the 1176193267Sjkimoperation region did not actually access those ports. Validation is now 1177193267Sjkimperformed on a per-field basis instead of the entire region. 1178193267Sjkim 1179193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 1180193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 1181193267Sjkimmeans a read/modify/write when writing to the register. However, for status 1182193267Sjkimregisters, writing a one means clear the event. Writing a zero means preserve 1183193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 1184193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 1185193267Sjkim 1186193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 1187193267Sjkimper the ACPI specification, for the control registers, preserve 1188193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 1189193267Sjkim 1190193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 1191193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 1192193267SjkimACPICA BZ 443. Lin Ming. 1193193267Sjkim 1194193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 1195193267Sjkimwants to reply true to this request. The Windows strings are the only paths 1196193267Sjkimthrough the AML that are tested and known to work properly. 1197193267Sjkim 1198193267Sjkim Previous Release: 1199193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1200193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1201193267Sjkim Current Release: 1202193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1203193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1204193267Sjkim 1205193267Sjkim2) iASL Compiler/Disassembler and Tools: 1206193267Sjkim 1207193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 1208193267Sjkimaetables.c 1209193267Sjkim 1210193267Sjkim---------------------------------------- 1211193267Sjkim20 February 2009. Summary of changes for version 20090220: 1212193267Sjkim 1213193267Sjkim1) ACPI CA Core Subsystem: 1214193267Sjkim 1215193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 1216193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 1217193267Sjkimnot required when reading the single-bit registers. The 1218193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 1219193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 1220193267Sjkim 1221193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 1222193267SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if 1223193267Sjkimthe register has an address of zero. Previously, these cases simply returned 1224193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 1225193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 1226193267Sjkim 1227193267SjkimRenamed the external ACPI bit register access functions. Renamed 1228193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 1229193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 1230193267SjkimAlso, restructured the code for these functions by simplifying the code path 1231193267Sjkimand condensing duplicate code to reduce code size. 1232193267Sjkim 1233193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 1234193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 1235193267Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ 1236193267Sjkim746. 1237193267Sjkim 1238193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 1239193267SjkimThis function writes both of the PM1 control registers (A/B). These registers 1240193267Sjkimare different than the PM1 A/B status and enable registers in that different 1241193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 1242193267Sjkimcan be different, as per the values returned from the _Sx predefined methods. 1243193267Sjkim 1244193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 1245193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 1246193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 1247193267Sjkimregister. ACPICA BZ 751. 1248193267Sjkim 1249193267SjkimSplit out the PM1 Status registers from the FADT. Added new globals for these 1250193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 1251193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 1252193267Sjkimclearer and less prone to error. 1253193267Sjkim 1254193267SjkimFixed the warning message for when the platform contains too many ACPI tables 1255193267Sjkimfor the default size of the global root table data structure. The calculation 1256193267Sjkimfor the truncation value was incorrect. 1257193267Sjkim 1258193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 1259193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 1260193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 1261193267Sjkim 1262193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 1263193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 1264193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 1265193267Sjkim 1266193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 1267193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 1268193267Sjkimincluded for 32-bit hosts. 1269193267Sjkim 1270193267SjkimDebug output: print the input and result for invocations of the _OSI reserved 1271193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 1272193267Sjkimverbosity of this debug level. Len Brown. 1273193267Sjkim 1274193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1275193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1276193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1277193267Sjkimmuch larger code and data size. 1278193267Sjkim 1279193267Sjkim Previous Release: 1280193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1281193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1282193267Sjkim Current Release: 1283193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1284193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1285193267Sjkim 1286193267Sjkim2) iASL Compiler/Disassembler and Tools: 1287193267Sjkim 1288193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 1289193267Sjkimvarious legal performance profiles. 1290193267Sjkim 1291193267Sjkim---------------------------------------- 1292193267Sjkim23 January 2009. Summary of changes for version 20090123: 1293193267Sjkim 1294193267Sjkim1) ACPI CA Core Subsystem: 1295193267Sjkim 1296193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 1297193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1298193267Sjkimthe tools/utilities. 1299193267Sjkim 1300193267SjkimImplemented a change to allow the host to override any ACPI table, including 1301193267Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by the 1302193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 1303193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 1304193267Sjkima table is dynamically loaded via the AML Load operator. 1305193267Sjkim 1306193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 1307193267Sjkim 1308193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 1309193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 1310193267Sjkimwith the actual namespace entry which is itself padded with underscores. 1311193267Sjkim 1312193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1313193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1314193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1315193267Sjkimmuch larger code and data size. 1316193267Sjkim 1317193267Sjkim Previous Release: 1318193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1319193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1320193267Sjkim Current Release: 1321193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1322193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1323193267Sjkim 1324193267Sjkim2) iASL Compiler/Disassembler and Tools: 1325193267Sjkim 1326193267SjkimFix build error under Bison-2.4. 1327193267Sjkim 1328193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 1329193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 1330193267Sjkimincludes the FADT version which first defined each flag. 1331193267Sjkim 1332193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 1333193267SjkimDSDT). Windows only. 1334193267Sjkim 1335193267Sjkim---------------------------------------- 1336193267Sjkim04 December 2008. Summary of changes for version 20081204: 1337193267Sjkim 1338193267Sjkim1) ACPI CA Core Subsystem: 1339193267Sjkim 1340193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 1341193267Sjkimthis release. This includes updates to the external interfaces, OSL 1342193267Sjkiminterfaces, the overview sections, and the debugger reference. 1343193267Sjkim 1344193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 1345193267Sjkimprogrammer reference: 1346193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 1347193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 1348193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 1349193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 1350193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 1351193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 1352193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 1353193267Sjkim 1354193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 1355193267Sjkimfile, components/hardware/hwxface.c 1356193267Sjkim 1357193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 1358193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 1359193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 1360193267Sjkimthere may be some risk in actually trusting the FADT register lengths, a run- 1361193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 1362193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 1363193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 1364193267Sjkimregister length is overridden with the default value. 1365193267Sjkim 1366193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 1367193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 1368193267SjkimPackages. Lin Ming. 1369193267Sjkim 1370193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 1371193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 1372193267Sjkim 1373193267SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes will 1374193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 1375193267Sjkim 1376193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1377193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1378193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1379193267Sjkimmuch larger code and data size. 1380193267Sjkim 1381193267Sjkim Previous Release: 1382193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1383193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1384193267Sjkim Current Release: 1385193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1386193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1387193267Sjkim 1388193267Sjkim2) iASL Compiler/Disassembler and Tools: 1389193267Sjkim 1390193267SjkimiASL: Completed the '-e' option to include additional ACPI tables in order to 1391193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 1392193267SjkimMing. 1393193267Sjkim 1394193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 1395193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 1396193267Sjkim 1397193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 1398193267SjkimBZ 743. 1399193267Sjkim 1400193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 1401193267Sjkim 1402193267Sjkim---------------------------------------- 1403193267Sjkim31 October 2008. Summary of changes for version 20081031: 1404193267Sjkim 1405193267Sjkim1) ACPI CA Core Subsystem: 1406193267Sjkim 1407193267SjkimRestructured the ACPICA header files into public/private. acpi.h now includes 1408193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 1409193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 1410193267Sjkiminclude the commonly used private headers for acpica code generation. Future 1411193267Sjkimplans include moving all private headers to a new subdirectory. 1412193267Sjkim 1413193267SjkimImplemented an automatic Buffer->String return value conversion for 1414193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 1415193267Sjkimconversion for return objects that are required to be a String, but a Buffer 1416193267Sjkimwas found instead. This can happen when reading string battery data from an 1417193267Sjkimoperation region, because it used to be difficult to convert the data from 1418193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 1419193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 1420193267Sjkim 1421193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 1422193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 1423193267Sjkimrequired because the host OS must setup the wake much differently for each 1424193267Sjkimvector (real vs. protected mode, etc.) and the interface itself should not be 1425193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 1426193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 1427193267Sjkimonly writes the vector.) ACPICA BZ 731. 1428193267Sjkim 1429193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 1430193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 1431193267SjkimThis can occur in poorly written AML when the hardware does not respond 1432193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 1433193267Sjkimloop count is configurable. A new exception code is returned when a loop is 1434193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 1435193267Sjkim 1436193267SjkimOptimized the execution of AML While loops. Previously, a control state 1437193267Sjkimobject was allocated and freed for each execution of the loop. The 1438193267Sjkimoptimization is to simply reuse the control state for each iteration. This 1439193267Sjkimspeeds up the raw loop execution time by about 5%. 1440193267Sjkim 1441193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 1442193267Sjkimimplicit integer of value zero for methods that contain no executable code. 1443193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 1444193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 1445193267Sjkim 1446193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 1447193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 1448193267Sjkimis seen in the field) because of the use of a double-backslash in strings 1449193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 1450193267SjkimLin Ming. 1451193267Sjkim 1452193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 1453193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 1454193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 1455193267Sjkim 1456193267SjkimConsolidated the method argument count validation code. Merged the code that 1457193267Sjkimvalidates control method argument counts into the predefined validation 1458193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 1459193267Sjkim 1460193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 1461193267Sjkimhandler installation, and calling a control method. Available at 1462193267Sjkimsource/tools/examples. 1463193267Sjkim 1464193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 1465193267Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS access. 1466193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 1467193267SjkimVector(s). 1468193267Sjkim 1469193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1470193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1471193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1472193267Sjkimmuch larger code and data size. 1473193267Sjkim 1474193267Sjkim Previous Release: 1475193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1476193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1477193267Sjkim Current Release: 1478193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1479193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1480193267Sjkim 1481193267Sjkim2) iASL Compiler/Disassembler and Tools: 1482193267Sjkim 1483193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 1484193267Sjkimallow the inclusion of additional ACPI tables to help with the disassembly of 1485193267Sjkimmethod invocations and the generation of external declarations during the 1486193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 1487193267Sjkimproperly without the actual declaration of the method. Use the -e option to 1488193267Sjkiminclude the table where the external method(s) are actually declared. Most 1489193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 1490193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 1491193267Sjkim-e dsdt.aml ssdt1.aml 1492193267Sjkim 1493193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 1494193267Sjkimproblem where the use of an alias within a namepath would result in a not 1495193267Sjkimfound error or cause the compiler to fault. Also now allows forward 1496193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 1497193267Sjkim 1498193267Sjkim---------------------------------------- 1499193267Sjkim26 September 2008. Summary of changes for version 20080926: 1500193267Sjkim 1501193267Sjkim1) ACPI CA Core Subsystem: 1502193267Sjkim 1503193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 1504193267Sjkimobjects. This code validates the predefined ACPI objects (objects whose names 1505193267Sjkimstart with underscore) that appear in the namespace, at the time they are 1506193267Sjkimevaluated. The argument count and the type of the returned object are 1507193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 1508193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 1509193267Sjkimthe results are returned to the ACPI-related drivers. Future enhancements may 1510193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 1511193267Sjkimfiles are nspredef.c and acpredef.h. 1512193267Sjkim 1513193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 1514193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 1515193267Sjkim 1516193267SjkimFixed an issue with implicit return compatibility. This change improves the 1517193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 1518193267SjkimMing, ACPICA BZ 349. 1519193267Sjkim 1520193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 1521193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 1522193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 1523193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 1524193267Sjkim 1525193267SjkimFixed two possible memory leaks in the error exit paths of 1526193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 1527193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 1528193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 1529193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 1530193267Sjkim 1531193267SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global 1532193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 1533193267SjkimMoore ACPICA BZ 442. 1534193267Sjkim 1535193267SjkimRemoved the obsolete version number in module headers. Removed the 1536193267Sjkim"$Revision" number that appeared in each module header. This version number 1537193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 1538193267Sjkimonly incorrect, it could also be misleading. 1539193267Sjkim 1540193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1541193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1542193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1543193267Sjkimmuch larger code and data size. 1544193267Sjkim 1545193267Sjkim Previous Release: 1546193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1547193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1548193267Sjkim Current Release: 1549193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1550193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1551193267Sjkim 1552193267Sjkim---------------------------------------- 1553193267Sjkim29 August 2008. Summary of changes for version 20080829: 1554193267Sjkim 1555193267Sjkim1) ACPI CA Core Subsystem: 1556193267Sjkim 1557193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 1558193267SjkimReference. Changes include the elimination of cheating on the Object field 1559193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 1560193267Sjkimdifferentiate the various reference types (instead of an AML opcode), and the 1561193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 1562193267Sjkim 1563193267SjkimReduce an error to a warning for an incorrect method argument count. 1564193267SjkimPreviously aborted with an error if too few arguments were passed to a 1565193267Sjkimcontrol method via the external ACPICA interface. Now issue a warning instead 1566193267Sjkimand continue. Handles the case where the method inadvertently declares too 1567193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 1568193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 1569193267Sjkim 1570193267SjkimDisallow the evaluation of named object types with no intrinsic value. Return 1571193267SjkimAE_TYPE for objects that have no value and therefore evaluation is undefined: 1572193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 1573193267Sjkimthese types were allowed, but an exception would be generated at some point 1574193267Sjkimduring the evaluation. Now, the error is generated up front. 1575193267Sjkim 1576193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 1577193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 1578193267Sjkim 1579193267SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug 1580193267Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION 1581193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 1582193267SjkimACPI_LV_EVENTS. 1583193267Sjkim 1584193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 1585193267SjkimThere is the possibility that certain device drivers may be affected if they 1586193267Sjkimuse any of these exceptions. 1587193267Sjkim 1588193267SjkimThe ACPICA documentation has been added to the public git source tree, under 1589193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 1590193267Sjkimcompiler reference, and the changes.txt release logfile. 1591193267Sjkim 1592193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1593193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1594193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1595193267Sjkimmuch larger code and data size. 1596193267Sjkim 1597193267Sjkim Previous Release: 1598193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1599193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1600193267Sjkim Current Release: 1601193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1602193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1603193267Sjkim 1604193267Sjkim2) iASL Compiler/Disassembler and Tools: 1605193267Sjkim 1606193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 1607193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 1608193267Sjkimargument. iASL now allows both definitions. 1609193267Sjkim 1610193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 1611193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 1612193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 1613193267Sjkimproperly. 1614193267Sjkim 1615193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 1616193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 1617193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 1618193267Sjkimheader. 1619193267Sjkim 1620193267Sjkim---------------------------------------- 1621193267Sjkim 1622193267Sjkim29 July 2008. Summary of changes for version 20080729: 1623193267Sjkim 1624193267Sjkim1) ACPI CA Core Subsystem: 1625193267Sjkim 1626193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 1627193267SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt 1628193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 1629193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 1630193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 1631193267Sjkim 1632193267SjkimAdd a function to dereference returned reference objects. Examines the return 1633193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 1634193267Sjkimautomatically dereferenced in an attempt to return something useful (these 1635193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 1636193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 1637193267Sjkim 1638193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 1639193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 1640193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 1641193267SjkimSpecification, June 2008. 1642193267Sjkim 1643193267SjkimAdditional error checking for pathname utilities. Add error check after all 1644193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 1645193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 1646193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 1647193267Sjkim 1648193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 1649193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 1650193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 1651193267Sjkim 1652193267SjkimAdd a function to decode reference object types to strings. Created for 1653193267Sjkimimproved error messages. 1654193267Sjkim 1655193267SjkimImprove object conversion error messages. Better error messages during object 1656193267Sjkimconversion from internal to the external ACPI_OBJECT. Used for external calls 1657193267Sjkimto AcpiEvaluateObject. 1658193267Sjkim 1659193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1660193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1661193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1662193267Sjkimmuch larger code and data size. 1663193267Sjkim 1664193267Sjkim Previous Release: 1665193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1666193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1667193267Sjkim Current Release: 1668193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1669193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1670193267Sjkim 1671193267Sjkim2) iASL Compiler/Disassembler and Tools: 1672193267Sjkim 1673193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 1674193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 1675193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 1676193267Sjkimexistent parameters. 1677193267Sjkim 1678193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 1679193267Sjkimappear in a disassembled ASL file if they were emitted by the original 1680193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 1681193267Sjkimmanually change these names, issue a remark instead. 1682193267Sjkim 1683193267SjkimiASL: error if named object created in while loop. Emit an error if any named 1684193267Sjkimobject is created within a While loop. If allowed, this code will generate a 1685193267Sjkimrun-time error on the second iteration of the loop when an attempt is made to 1686193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 1687193267Sjkim 1688193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 1689193267Sjkimpathnames within the Include operator. previously, only relative pathnames 1690193267Sjkimwere supported. 1691193267Sjkim 1692193267SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor. 1693193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 1694193267Sjkim 1695193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 1696193267SjkimHandles the case for the Interrupt Resource Descriptor where 1697193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 1698193267Sjkimis present. Now leave room for the Index. BZ 426 1699193267Sjkim 1700193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 1701193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 1702193267Sjkim 1703193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 1704193267Sjkim(get ACPI tables on Windows). This was apparently broken in version 20070919. 1705193267Sjkim 1706193267SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case where 1707193267Sjkimthe EOF happens immediately after the last table in the input file. Print 1708193267Sjkimcompletion message. Previously, no message was displayed in this case. 1709193267Sjkim 1710193267Sjkim---------------------------------------- 1711193267Sjkim01 July 2008. Summary of changes for version 20080701: 1712193267Sjkim 1713193267Sjkim0) Git source tree / acpica.org 1714193267Sjkim 1715193267SjkimFixed a problem where a git-clone from http would not transfer the entire 1716193267Sjkimsource tree. 1717193267Sjkim 1718193267Sjkim1) ACPI CA Core Subsystem: 1719193267Sjkim 1720193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 1721193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 1722193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 1723193267Sjkimenabling of GPEs if a rogue GPE is received during initialization (before GPE 1724193267Sjkimhandlers are installed.) 1725193267Sjkim 1726193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 1727193267Sjkimloaded tables were simply mapped - but on some machines this memory is 1728193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 1729193267SjkimOpRegion case, added checksum verify. Use the table length from the table 1730193267Sjkimheader, not the region length. For the Buffer case, use the table length 1731193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 1732193267Sjkim 1733193267SjkimFixed a problem where the same ACPI table could not be dynamically loaded and 1734193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 1735193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 1736193267Sjkimunregister a table upon an unload. During a load, if the same table is found, 1737193267Sjkimthis no longer returns an exception. BZ 722 1738193267Sjkim 1739193267SjkimFixed a problem where the wrong descriptor length was calculated for the 1740193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 1741193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 1742193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 1743193267Sjkimby Linn Crosetto. BZ 728 1744193267Sjkim 1745193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 1746193267Sjkimby Load() did not have its reference count decremented during unload, leading 1747193267Sjkimto a memory leak. Lin Ming. BZ 727 1748193267Sjkim 1749193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 1750193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 1751193267SjkimSuietov. BZ 506 1752193267Sjkim 1753193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 1754193267Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only. 1755193267SjkimVegard Nossum. BZ 726 1756193267Sjkim 1757193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 1758193267Sjkimarguments if the object is a control method. Added this call to the debugger 1759193267Sjkimso the proper number of default arguments are passed to a method. This 1760193267Sjkimprevents a warning when executing methods from AcpiExec. 1761193267Sjkim 1762193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 1763193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 1764193267Sjkim 1765193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 1766193267Sjkim 1767193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1768193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1769193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1770193267Sjkimmuch larger code and data size. 1771193267Sjkim 1772193267Sjkim Previous Release: 1773193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1774193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1775193267Sjkim Current Release: 1776193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1777193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1778193267Sjkim 1779193267Sjkim2) iASL Compiler/Disassembler and Tools: 1780193267Sjkim 1781193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 1782193267Sjkimresource descriptor names. 1783193267Sjkim 1784193267SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed the 1785193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 1786193267Sjkimcharacters in the input. BZ 441 1787193267Sjkim 1788193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 1789193267Sjkim"result of operation not used" warning when the DDB handle returned from 1790193267SjkimLoadTable is not used. The warning is not needed. BZ 590 1791193267Sjkim 1792193267SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to 1793193267Sjkimpass address of table to the AML. Added option to disable OpRegion simulation 1794193267Sjkimto allow creation of an OpRegion with a real address that was passed to _CFG. 1795193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 1796193267Sjkim 1797193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 1798193267Sjkimand use the standard table header output routine. 1799193267Sjkim 1800193267Sjkim---------------------------------------- 1801193267Sjkim09 June 2008. Summary of changes for version 20080609: 1802193267Sjkim 1803193267Sjkim1) ACPI CA Core Subsystem: 1804193267Sjkim 1805193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 1806193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 1807193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 1808193267Sjkimwith MS ACPI. BZ 6859 1809193267Sjkim 1810193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 1811193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 1812193267SjkimAcpiGetRegisterUnlocked. 1813193267Sjkim 1814193267SjkimFixed a problem where the invocation of a GPE control method could hang. This 1815193267Sjkimwas a regression introduced in 20080514. The new method argument count 1816193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 1817193267Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE block 1818193267Sjkiminformation to the notify handler via the control method parameter pointer. 1819193267Sjkim 1820193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 1821193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 1822193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 1823193267Sjkimreturned. BZ 716 1824193267Sjkim 1825193267SjkimFixed a problem where a deleted object could be accessed from within the AML 1826193267Sjkimparser. This was a regression introduced in version 20080123 as a fix for the 1827193267SjkimUnload operator. Lin Ming. BZ 10669 1828193267Sjkim 1829193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 1830193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 1831193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 1832193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 1833193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 1834193267Sjkim 1835193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 1836193267Sjkimpath did not delete a locally allocated structure. 1837193267Sjkim 1838193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 1839193267Sjkimcurrent specifications. Includes disassembler support. 1840193267Sjkim 1841193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 1842193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 1843193267Sjkimone mutex. Linn Crosetto 1844193267Sjkim 1845193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1846193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1847193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1848193267Sjkimmuch larger code and data size. 1849193267Sjkim 1850193267Sjkim Previous Release: 1851193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1852193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1853193267Sjkim Current Release: 1854193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1855193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1856193267Sjkim 1857193267Sjkim2) iASL Compiler/Disassembler and Tools: 1858193267Sjkim 1859193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 1860193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 1861193267Sjkimmultiple integers within _CID packages. Includes single-step support for 1862193267Sjkimdebugger also. 1863193267Sjkim 1864193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 1865193267Sjkim 1866193267Sjkim---------------------------------------- 1867193267Sjkim14 May 2008. Summary of changes for version 20080514: 1868193267Sjkim 1869193267Sjkim1) ACPI CA Core Subsystem: 1870193267Sjkim 1871193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 1872193267Sjkiminitialization. This could lead to "handler not installed" errors on some 1873193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 1874193267Sjkimensures that all operation regions and devices throughout the namespace have 1875193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 1876193267Sjkim 1877193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 1878193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 1879193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 1880193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 1881193267SjkimLuming Yu, BZ 1653. 1882193267Sjkim 1883193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 1884193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 1885193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 1886193267Sjkimthe ACPICA code. 1887193267Sjkim 1888193267SjkimFixed a problem with the Field operator where zero-length fields would return 1889193267Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL 1890193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 1891193267Sjkim 1892193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 1893193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 1894193267Sjkimloaded at the namespace root even though this goes against the ACPI 1895193267Sjkimspecification. This provides compatibility with other ACPI implementations. 1896193267SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming. 1897193267Sjkim 1898193267SjkimFixed a problem where ACPICA would not Load() tables with unusual signatures. 1899193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 1900193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 1901193267SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts such 1902193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 1903193267Sjkim 1904193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 1905193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 1906193267SjkimSubStatus field. 1907193267Sjkim 1908193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 1909193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 1910193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 1911193267Sjkim 1912193267SjkimImplemented argument count checking in control method invocation via 1913193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 1914193267Sjkimmany. This applies only to extern programmatic control method execution, not 1915193267Sjkimmethod-to-method calls within the AML. Lin Ming. 1916193267Sjkim 1917193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 1918193267Sjkimlonger needed, especially with the removal of 16-bit support. It was replaced 1919193267Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on 1920193267Sjkim32/64-bit platforms is required. 1921193267Sjkim 1922193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 1923193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 1924193267Sjkim 1925193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1926193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1927193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1928193267Sjkimmuch larger code and data size. 1929193267Sjkim 1930193267Sjkim Previous Release: 1931193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1932193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1933193267Sjkim Current Release: 1934193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1935193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1936193267Sjkim 1937193267Sjkim2) iASL Compiler/Disassembler and Tools: 1938193267Sjkim 1939193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 1940193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 1941193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 1942193267Sjkim 1943193267Sjkim---------------------------------------- 1944193267Sjkim21 March 2008. Summary of changes for version 20080321: 1945193267Sjkim 1946193267Sjkim1) ACPI CA Core Subsystem: 1947193267Sjkim 1948193267SjkimImplemented an additional change to the GPE support in order to suppress 1949193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 1950193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 1951193267Sjkimthe GPE is unknown to the system. This should prevent future interrupt floods 1952193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 1953193267Sjkim 1954193267SjkimFixed a problem where NULL package elements were not returned to the 1955193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 1956193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 1957193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 1958193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 1959193267Sjkim 1960193267SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword, 1961193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 1962193267Sjkiman executing control method. In this case, these operators created namespace 1963193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 1964193267Sjkimtemporary nodes. This could cause a problem if there is race condition 1965193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 1966193267SjkimLinn Crosetto) 1967193267Sjkim 1968193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 1969193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 1970193267Sjkimgenerated. 1971193267Sjkim 1972193267SjkimImplemented several changes for Notify handling. Added support for new Notify 1973193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 1974193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 1975193267Sjkim(Bob Moore, Zhang Rui) 1976193267Sjkim 1977193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 1978193267Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for 1979193267SjkimNULL objects - either NULL package elements or unresolved named references. 1980193267Sjkim 1981193267SjkimFixed a problem where an extraneous debug message was produced for package 1982193267Sjkimobjects (when debugging enabled). The message "Package List length larger 1983193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 1984193267Sjkimerror message rather than a debug message. Added a debug message for the 1985193267Sjkimopposite case, where NumElements is larger than the Package List (the package 1986193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 1987193267Sjkim 1988193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 1989193267Sjkimclarify and keep all data for a given object on one output line. 1990193267Sjkim 1991193267SjkimFixed two size calculation issues with the variable-length Start Dependent 1992193267Sjkimresource descriptor. 1993193267Sjkim 1994193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1995193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1996193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1997193267Sjkima much larger code and data size. 1998193267Sjkim 1999193267Sjkim Previous Release: 2000193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2001193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2002193267Sjkim Current Release: 2003193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 2004193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 2005193267Sjkim 2006193267Sjkim2) iASL Compiler/Disassembler and Tools: 2007193267Sjkim 2008193267SjkimFixed a problem with the use of the Switch operator where execution of the 2009193267Sjkimcontaining method by multiple concurrent threads could cause an 2010193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 2011193267Sjkimactual Switch opcode, it must be simulated with local named temporary 2012193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 2013193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 2014193267Sjkim 2015193267Sjkim---------------------------------------- 2016193267Sjkim13 February 2008. Summary of changes for version 20080213: 2017193267Sjkim 2018193267Sjkim1) ACPI CA Core Subsystem: 2019193267Sjkim 2020193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 2021193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 2022193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 2023193267Sjkimbehind all pending notify requests (may require changes to the local host OSL 2024193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 2025193267Sjkim 2026193267SjkimFixed a problem where buffer and package objects passed as arguments to a 2027193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 2028193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 2029193267Sjkimexecuted by the target control method. 2030193267Sjkim 2031193267SjkimFixed a problem where resource descriptor size optimization could cause a 2032193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 2033193267Sjkimresource template must use the same descriptors (with the same size) as 2034193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 2035193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 2036193267Sjkim 2037193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 2038193267Sjkimobjects did not perform an implicit conversion as it should. These types must 2039193267Sjkimretain their initial type permanently as per the ACPI specification. However, 2040193267Sjkima CopyObject to all other object types should not perform an implicit 2041193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 2042193267Sjkim 2043193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 2044193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 2045193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 2046193267Sjkim 2047193267SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was 2048193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 2049193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 2050193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 2051193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 2052193267Sjkiminefficient compilers. 2053193267Sjkim 2054193267SjkimAdded missing va_end statements that should correspond with each va_start 2055193267Sjkimstatement. 2056193267Sjkim 2057193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2058193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2059193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2060193267Sjkima much larger code and data size. 2061193267Sjkim 2062193267Sjkim Previous Release: 2063193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2064193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2065193267Sjkim Current Release: 2066193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2067193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2068193267Sjkim 2069193267Sjkim2) iASL Compiler/Disassembler and Tools: 2070193267Sjkim 2071193267SjkimImplemented full disassembler support for the following new ACPI tables: 2072193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 2073193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 2074193267SjkimArchitecture (WHEA). 2075193267Sjkim 2076193267Sjkim---------------------------------------- 2077193267Sjkim23 January 2008. Summary of changes for version 20080123: 2078193267Sjkim 2079193267Sjkim1) ACPI CA Core Subsystem: 2080193267Sjkim 2081193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 2082193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2083193267Sjkimthe tools/utilities. 2084193267Sjkim 2085193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 2086193267Sjkimobjects. These objects have deferred execution for some arguments, and the 2087193267Sjkimexecution is now completed before the SizeOf is executed. This problem caused 2088193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 2089193267Sjkim9558 2090193267Sjkim 2091193267SjkimImplemented an enhancement to the interpreter "slack mode". In the absence of 2092193267Sjkiman explicit return or an implicitly returned object from the last executed 2093193267Sjkimopcode, a control method will now implicitly return an integer of value 0 for 2094193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 2095193267Sjkim 2096193267SjkimFixed a problem with the Load operator where an exception was not returned in 2097193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 2098193267Sjkim 2099193267SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as per 2100193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 2101193267Sjkim 2102193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2103193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2104193267Sjkim 2105193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 2106193267Sjkiminput strings could cause unexpected failures if they were shorter than the 2107193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 2108193267Sjkim 2109193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2110193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2111193267Sjkim 2112193267SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST, 2113193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 2114193267Sjkim 2115193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2116193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2117193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2118193267Sjkima much larger code and data size. 2119193267Sjkim 2120193267Sjkim Previous Release: 2121193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2122193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2123193267Sjkim Current Release: 2124193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2125193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2126193267Sjkim 2127193267Sjkim2) iASL Compiler/Disassembler and Tools: 2128193267Sjkim 2129193267SjkimImplemented support in the disassembler for checksum validation on incoming 2130193267Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the table 2131193267Sjkimheader dump at the start of the disassembly. 2132193267Sjkim 2133193267SjkimImplemented additional debugging information in the namespace listing file 2134193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 2135193267Sjkimpathname to each namespace object is displayed. 2136193267Sjkim 2137193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 2138193267Sjkimfaults or infinite loops. 2139193267Sjkim 2140193267SjkimFixed an unexpected parse error when using the optional "parameter types" 2141193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 2142193267Sjkim 2143193267SjkimFixed a problem where two External declarations with the same name did not 2144193267Sjkimcause an error (Lin Ming) BZ 509 2145193267Sjkim 2146193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 2147193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 2148193267SjkimMing) BZ 583,587 2149193267Sjkim 2150193267Sjkim---------------------------------------- 2151193267Sjkim19 December 2007. Summary of changes for version 20071219: 2152193267Sjkim 2153193267Sjkim1) ACPI CA Core Subsystem: 2154193267Sjkim 2155193267SjkimImplemented full support for deferred execution for the TermArg string 2156193267Sjkimarguments for DataTableRegion. This enables forward references and full 2157193267Sjkimoperand resolution for the three string arguments. Similar to OperationRegion 2158193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 2159193267Sjkim 2160193267SjkimImplemented full argument resolution support for the BankValue argument to 2161193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 2162193267Sjkimused. Lin Ming BZ 387, 393 2163193267Sjkim 2164193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 2165193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 2166193267Sjkimspecification, the search down the current branch is terminated if a device 2167193267Sjkimis both not present and not functional (instead of just not present.) Yakui 2168193267SjkimZhao. 2169193267Sjkim 2170193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 2171193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 2172193267Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled 2173193267Sjkiminstead of simply ignored. Rui Zhang. 2174193267Sjkim 2175193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 2176193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 2177193267Sjkim 2178193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 2179193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 2180193267Sjkim 2181193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2182193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2183193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2184193267Sjkima much larger code and data size. 2185193267Sjkim 2186193267Sjkim Previous Release: 2187193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2188193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2189193267Sjkim Current Release: 2190193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2191193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2192193267Sjkim 2193193267Sjkim---------------------------------------- 2194193267Sjkim14 November 2007. Summary of changes for version 20071114: 2195193267Sjkim 2196193267Sjkim1) ACPI CA Core Subsystem: 2197193267Sjkim 2198193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 2199193267Sjkim(interrupt) itself, and control methods executed. Named 2200193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 2201193267Sjkimshould be useful for debugging and statistics. 2202193267Sjkim 2203193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 2204193267Sjkimcontents of the various event counters. Returns the current values for 2205193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 2206193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 2207193267Sjkimare added. Device drivers should use this interface rather than access the 2208193267Sjkimcounters directly. 2209193267Sjkim 2210193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 2211193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 2212193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 2213193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 2214193267Sjkim 2215193267SjkimFixed a problem with Index references passed as method arguments. References 2216193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 2217193267Sjkimcontrol was passed to the called method). The references are now correctly 2218193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 2219193267Sjkim 2220193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 2221193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 2222193267Sjkimnow correctly copied. BZ 5391. Lin Ming 2223193267Sjkim 2224193267SjkimFixed a problem with Control Method references within Package objects. These 2225193267Sjkimreferences are now correctly generated. This completes the package 2226193267Sjkimconstruction overhaul that began in version 20071019. 2227193267Sjkim 2228193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2229193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2230193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2231193267Sjkima much larger code and data size. 2232193267Sjkim 2233193267Sjkim Previous Release: 2234193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2235193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2236193267Sjkim Current Release: 2237193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2238193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2239193267Sjkim 2240193267Sjkim 2241193267Sjkim2) iASL Compiler/Disassembler and Tools: 2242193267Sjkim 2243193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 2244193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 2245193267SjkimPCIBARTarget. 2246193267Sjkim 2247193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 2248193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 2249193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 2250193267Sjkimand Bob Moore 2251193267Sjkim 2252193267Sjkim---------------------------------------- 2253193267Sjkim19 October 2007. Summary of changes for version 20071019: 2254193267Sjkim 2255193267Sjkim1) ACPI CA Core Subsystem: 2256193267Sjkim 2257193267SjkimFixed a problem with the Alias operator when the target of the alias is a 2258193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 2259193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 2260193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 2261193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 2262193267Sjkim 2263193267SjkimFixed a problem with the Package operator where all named references were 2264193267Sjkimcreated as object references and left otherwise unresolved. According to the 2265193267SjkimACPI specification, a Package can only contain Data Objects or references to 2266193267Sjkimcontrol methods. The implication is that named references to Data Objects 2267193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 2268193267Sjkimimmediately upon package creation. This is the approach taken with this 2269193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 2270193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 2271193267Sjkim 2272193267SjkimReverted a change to Notify handling that was introduced in version 2273193267Sjkim20070508. This version changed the Notify handling from asynchronous to 2274193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 2275193267SjkimASL operator). It was found that this change caused more problems than it 2276193267Sjkimsolved and was removed by most users. 2277193267Sjkim 2278193267SjkimFixed a problem with the Increment and Decrement operators where the type of 2279193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 2280193267SjkimLin Ming. 2281193267Sjkim 2282193267SjkimFixed a problem with the Load and LoadTable operators where the table 2283193267Sjkimlocation within the namespace was ignored. Instead, the table was always 2284193267Sjkimloaded into the root or current scope. Lin Ming. 2285193267Sjkim 2286193267SjkimFixed a problem with the Load operator when loading a table from a buffer 2287193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 2288193267Sjkim 2289193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 2290193267Sjkimobject to the Debug object could cause a fault. 2291193267Sjkim 2292193267SjkimAdded a table checksum verification for the Load operator, in the case where 2293193267Sjkimthe load is from a buffer. (BZ 578). 2294193267Sjkim 2295193267SjkimImplemented additional parameter validation for the LoadTable operator. The 2296193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 2297193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 2298193267Sjkim 2299193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2300193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2301193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2302193267Sjkima much larger code and data size. 2303193267Sjkim 2304193267Sjkim Previous Release: 2305193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2306193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2307193267Sjkim Current Release: 2308193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2309193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2310193267Sjkim 2311193267Sjkim 2312193267Sjkim2) iASL Compiler/Disassembler: 2313193267Sjkim 2314193267SjkimFixed a problem where if a single file was specified and the file did not 2315193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 2316193267Sjkimversion 20070917.) 2317193267Sjkim 2318193267Sjkim---------------------------------------- 2319193267Sjkim19 September 2007. Summary of changes for version 20070919: 2320193267Sjkim 2321193267Sjkim1) ACPI CA Core Subsystem: 2322193267Sjkim 2323193267SjkimDesigned and implemented new external interfaces to install and remove 2324193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 2325193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 2326193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 2327193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 2328193267Sjkim 2329193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 2330193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 2331193267Sjkiminitialization. (Bob Moore) BZ 8171 2332193267Sjkim 2333193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 2334193267SjkimProcessor, PowerResource) can be not found if they are declared and 2335193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 2336193267Sjkim 2337193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2338193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2339193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2340193267Sjkima much larger code and data size. 2341193267Sjkim 2342193267Sjkim Previous Release: 2343193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2344193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2345193267Sjkim Current Release: 2346193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2347193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2348193267Sjkim 2349193267Sjkim 2350193267Sjkim2) iASL Compiler/Disassembler: 2351193267Sjkim 2352193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 2353193267Sjkimsingle invocation. This includes command line wildcard support for both the 2354193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 2355193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 2356193267Sjkim 2357193267Sjkim---------------------------------------- 2358193267Sjkim08 May 2007. Summary of changes for version 20070508: 2359193267Sjkim 2360193267Sjkim1) ACPI CA Core Subsystem: 2361193267Sjkim 2362193267SjkimImplemented a Microsoft compatibility design change for the handling of the 2363193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 2364193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 2365193267Sjkimstill executes the notify handlers in a different thread, but the original 2366193267Sjkimthread that executed the Notify() now waits at a synchronization point for 2367193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 2368193267Sjkimoperator in order to operate correctly. 2369193267Sjkim 2370193267SjkimImplemented support to allow Package objects to be passed as method 2371193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 2372193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 2373193267Sjkimimplemented since there were no reserved control methods that required it 2374193267Sjkimuntil recently. 2375193267Sjkim 2376193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 2377193267Sjkimcontained invalid non-zero values in reserved fields could cause later 2378193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 2379193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 2380193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 2381193267Sjkim 2382193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 2383193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 2384193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 2385193267SjkimLiu. 2386193267Sjkim 2387193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 2388193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 2389193267Sjkimlist. Reported by Linn Crosetto. 2390193267Sjkim 2391193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2392193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2393193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2394193267Sjkima much larger code and data size. 2395193267Sjkim 2396193267Sjkim Previous Release: 2397193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2398193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2399193267Sjkim Current Release: 2400193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2401193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2402193267Sjkim 2403193267Sjkim---------------------------------------- 2404167802Sjkim20 March 2007. Summary of changes for version 20070320: 2405167802Sjkim 2406167802Sjkim1) ACPI CA Core Subsystem: 2407167802Sjkim 2408193267SjkimImplemented a change to the order of interpretation and evaluation of AML 2409193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 2410193267Sjkimoperands in the order that they appear in the AML stream (and the 2411193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 2412193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 2413193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 2414193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 2415167802Sjkim 2416193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 2417193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 2418193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 2419193267Sjkimas well as the internal use of the global lock to support AML fields -- a 2420193267Sjkimcontrol method that is holding the global lock can now simultaneously access 2421193267SjkimAML fields that require global lock protection. Previously, in both cases, 2422193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 2423193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 2424193267SjkimController. There is no change to the behavior of the AML Acquire operator, 2425193267Sjkimas this can already be used to acquire a mutex multiple times by the same 2426193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 2427167802Sjkim 2428193267SjkimFixed a problem where invalid objects could be referenced in the AML 2429193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 2430193267Sjkimthe internal "Return Object" field is cleared on error and only valid 2431193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 2432193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 2433167802Sjkim 2434193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 2435193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 2436193267SjkimPodrezov. 2437167802Sjkim 2438193267SjkimFixed an internal problem with the handling of result objects on the 2439193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 2440167802Sjkim 2441193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 2442193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 2443193267Sjkim7874. Valery Podrezov. 2444167802Sjkim 2445193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 2446193267Sjkimremnant from the previously discontinued 16-bit support. 2447167802Sjkim 2448193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2449193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2450193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2451193267Sjkima much larger code and data size. 2452167802Sjkim 2453167802Sjkim Previous Release: 2454167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2455167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2456167802Sjkim Current Release: 2457167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2458167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2459167802Sjkim 2460167802Sjkim---------------------------------------- 2461167802Sjkim26 January 2007. Summary of changes for version 20070126: 2462167802Sjkim 2463167802Sjkim1) ACPI CA Core Subsystem: 2464167802Sjkim 2465193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 2466193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2467193267Sjkimthe utilities. 2468167802Sjkim 2469193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 2470193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 2471193267Sjkimoverridden, causing a fault in this case. 2472167802Sjkim 2473193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2474193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2475193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2476193267Sjkima much larger code and data size. 2477167802Sjkim 2478167802Sjkim Previous Release: 2479167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2480167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2481167802Sjkim Current Release: 2482167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2483167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2484167802Sjkim 2485167802Sjkim---------------------------------------- 2486167802Sjkim15 December 2006. Summary of changes for version 20061215: 2487167802Sjkim 2488167802Sjkim1) ACPI CA Core Subsystem: 2489167802Sjkim 2490193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 2491193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 2492193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 2493193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 2494193267Sjkimbootable Linux firmware kit is now available. 2495167802Sjkim 2496193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 2497193267Sjkimenable a clean subsystem restart, via the implementation of the 2498193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 2499193267SjkimHP) 2500167802Sjkim 2501193267SjkimImplemented enhancements to the multithreading support within the debugger 2502193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 2503167802Sjkim(Valery Podrezov) 2504167802Sjkim 2505193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 2506193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 2507193267Sjkimeach of the various object types. (Valery Podrezov) 2508167802Sjkim 2509193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2510193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2511193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2512193267Sjkima much larger code and data size. 2513193267Sjkim 2514167802Sjkim Previous Release: 2515167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2516167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2517167802Sjkim Current Release: 2518167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2519167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2520167802Sjkim 2521167802Sjkim 2522167802Sjkim2) iASL Compiler/Disassembler and Tools: 2523167802Sjkim 2524193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 2525193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 2526167802Sjkim 2527167802Sjkim---------------------------------------- 2528167802Sjkim09 November 2006. Summary of changes for version 20061109: 2529167802Sjkim 2530167802Sjkim1) ACPI CA Core Subsystem: 2531167802Sjkim 2532193267SjkimOptimized the Load ASL operator in the case where the source operand is an 2533193267Sjkimoperation region. Simply map the operation region memory, instead of 2534193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 2535193267Sjkimbelow.) 2536167802Sjkim 2537193267SjkimFixed the Load ASL operator for the case where the source operand is a 2538193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 2539167802Sjkim 2540193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 2541193267Sjkiman operation region of any type. It is now restricted to regions of type 2542193267SjkimSystemMemory, as per the ACPI specification. BZ 481 2543167802Sjkim 2544193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 2545167802Sjkim 2546193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 2547193267Sjkim(FADT, FACS, DSDT). BZ 477 2548167802Sjkim 2549193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 2550193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 2551193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 2552167802Sjkim 2553193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2554193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2555193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2556193267Sjkima much larger code and data size. 2557167802Sjkim 2558167802Sjkim Previous Release: 2559167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2560167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2561167802Sjkim Current Release: 2562167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2563167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2564167802Sjkim 2565167802Sjkim 2566167802Sjkim2) iASL Compiler/Disassembler and Tools: 2567167802Sjkim 2568193267SjkimFixed a problem where the presence of the _OSI predefined control method 2569193267Sjkimwithin complex expressions could cause an internal compiler error. 2570167802Sjkim 2571193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 2572193267SjkimSpaceId is now part of the REGION object. BZ 429 2573167802Sjkim 2574167802Sjkim---------------------------------------- 2575167802Sjkim11 October 2006. Summary of changes for version 20061011: 2576167802Sjkim 2577167802Sjkim1) ACPI CA Core Subsystem: 2578167802Sjkim 2579193267SjkimCompleted an AML interpreter performance enhancement for control method 2580193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 2581193267Sjkimcompletely parsed and executed in a single pass. This improves overall 2582193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 2583193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 2584193267Sjkimeliminated namespace loading during the pass one parse.) 2585167802Sjkim 2586193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 2587193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 2588193267Sjkimobtained and also checked for an ID match. 2589167802Sjkim 2590193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 2591193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 2592193267Sjkimoperation regions to be declared locally within control methods underneath 2593193267SjkimPCI device objects. 2594167802Sjkim 2595193267SjkimFixed a problem with a possible race condition between threads executing 2596193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 2597193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 2598193267Sjkimentries created during any concurrent control method execution. An 2599193267Sjkimadditional namespace race condition is known to exist between 2600193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 2601193267Sjkiminvestigation. 2602167802Sjkim 2603193267SjkimRestructured the AML ParseLoop function, breaking it into several 2604193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 2605193267Sjkim(Mikhail Kouzmich) 2606167802Sjkim 2607193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 2608193267Sjkimof prefix handle and pathname. BZ 478 2609167802Sjkim 2610193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2611193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2612193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2613193267Sjkima much larger code and data size. 2614167802Sjkim 2615167802Sjkim Previous Release: 2616167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2617167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2618167802Sjkim Current Release: 2619167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2620167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2621167802Sjkim 2622167802Sjkim2) iASL Compiler/Disassembler and Tools: 2623167802Sjkim 2624193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 2625193267Sjkimto restore original behavior. 2626167802Sjkim 2627167802Sjkim---------------------------------------- 2628167802Sjkim27 September 2006. Summary of changes for version 20060927: 2629167802Sjkim 2630167802Sjkim1) ACPI CA Core Subsystem: 2631167802Sjkim 2632193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 2633193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 2634193267Sjkimlevel indication flag is not needed. 2635167802Sjkim 2636193267SjkimFixed a problem with the Global Lock where the lock could appear to be 2637193267Sjkimobtained before it is actually obtained. The global lock semaphore was 2638193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 2639193267SjkimSuietov. 2640167802Sjkim 2641193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 2642193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 2643167802Sjkim 2644193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2645193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2646193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2647193267Sjkima much larger code and data size. 2648167802Sjkim 2649167802Sjkim Previous Release: 2650167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2651167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2652167802Sjkim Current Release: 2653167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2654167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2655167802Sjkim 2656167802Sjkim 2657167802Sjkim2) iASL Compiler/Disassembler and Tools: 2658167802Sjkim 2659193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 2660193267Sjkimnames where an "object does not exist" error could be incorrectly generated 2661193267Sjkimif the parent ResourceTemplate pathname places the template within a 2662193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 2663167802Sjkim 2664193267SjkimFixed a problem where the compiler could hang after syntax errors detected 2665193267Sjkimin an ElseIf construct. (BZ 453) 2666167802Sjkim 2667193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 2668193267Sjkimoperator. An incorrect output filename was produced when this parameter was 2669193267Sjkima null string (""). Now, the original input filename is used as the AML 2670193267Sjkimoutput filename, with an ".aml" extension. 2671167802Sjkim 2672193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 2673193267Sjkimany AML debugger command) (Valery Podrezov). 2674167802Sjkim 2675167802Sjkim---------------------------------------- 2676167802Sjkim12 September 2006. Summary of changes for version 20060912: 2677167802Sjkim 2678167802Sjkim1) ACPI CA Core Subsystem: 2679167802Sjkim 2680193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 2681193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 2682193267Sjkimspecified, instead of creating a serialization semaphore per control method, 2683193267Sjkimthe interpreter lock is simply no longer released before a blocking 2684193267Sjkimoperation during control method execution. This effectively makes the AML 2685193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 2686193267Sjkimeliminated. 2687167802Sjkim 2688193267SjkimFixed a regression where an error was no longer emitted if a control method 2689193267Sjkimattempts to create 2 objects of the same name. This once again returns 2690193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 2691193267Sjkimwill dynamically serialize the control method to possible prevent future 2692193267Sjkimerrors. (BZ 440) 2693167802Sjkim 2694193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 2695193267SjkimConfig Space setup procedure. (BZ 7145) 2696167802Sjkim 2697193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 2698193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 2699193267Sjkimtable is loaded. 2700167802Sjkim 2701193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 2702193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 2703193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 2704167802Sjkim 2705193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2706193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2707193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2708193267Sjkima much larger code and data size. 2709167802Sjkim 2710167802Sjkim Previous Release: 2711167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2712167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2713167802Sjkim Current Release: 2714167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2715167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2716167802Sjkim 2717167802Sjkim 2718167802Sjkim2) iASL Compiler/Disassembler and Tools: 2719167802Sjkim 2720193267SjkimFixed a problem with the implementation of the Switch() operator where the 2721193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 2722193267Sjkimat method level. This could cause a problem if the Switch() operator is 2723193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 2724167802Sjkim 2725193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 2726193267Sjkimoperator. Now, ignore it and continue. 2727167802Sjkim 2728193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 2729193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 2730167802Sjkim 2731193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 2732193267Sjkimeach output line with the current buffer offset. 2733167802Sjkim 2734193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 2735193267Sjkimthe end of some of the subtables. 2736167802Sjkim 2737193267SjkimThe disassembler now emits a comment if a buffer appears to be a 2738193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 2739193267Sjkimnot appear at the very end of the buffer. 2740167802Sjkim 2741193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 2742193267Sjkimof the AML interpreter. 2743167802Sjkim 2744167802Sjkim---------------------------------------- 2745167802Sjkim31 August 2006. Summary of changes for version 20060831: 2746167802Sjkim 2747167802Sjkim1) ACPI CA Core Subsystem: 2748167802Sjkim 2749167802SjkimMiscellaneous fixes for the Table Manager: 2750193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 2751167802Sjkim- Fixed a couple table mapping issues during table load 2752167802Sjkim- Fixed a couple alignment issues for IA64 2753167802Sjkim- Initialize input array to zero in AcpiInitializeTables 2754193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 2755193267SjkimAcpiGetTableByIndex 2756167802Sjkim 2757193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 2758193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 2759193267Sjkimprevent other wake GPEs from interrupting the wake process. 2760167802Sjkim 2761193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 2762193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 2763167802Sjkim 2764193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 2765193267Sjkimboth the ACPICA headers and the disassembler. 2766167802Sjkim 2767193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2768193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2769193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2770193267Sjkima much larger code and data size. 2771167802Sjkim 2772167802Sjkim Previous Release: 2773167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2774167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2775167802Sjkim Current Release: 2776167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2777167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2778167802Sjkim 2779167802Sjkim 2780167802Sjkim2) iASL Compiler/Disassembler and Tools: 2781167802Sjkim 2782167802SjkimDisassembler support for the DMAR ACPI table. 2783167802Sjkim 2784167802Sjkim---------------------------------------- 2785167802Sjkim23 August 2006. Summary of changes for version 20060823: 2786167802Sjkim 2787167802Sjkim1) ACPI CA Core Subsystem: 2788167802Sjkim 2789193267SjkimThe Table Manager component has been completely redesigned and 2790193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 2791193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 2792193267Sjkimnow possible to obtain the ACPI tables very early during kernel 2793193267Sjkiminitialization, even before dynamic memory management is initialized. 2794193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 2795167802Sjkim 2796167802SjkimObsolete ACPICA interfaces: 2797167802Sjkim 2798193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 2799193267Sjkimtime). 2800167802Sjkim- AcpiLoadTable: Not needed. 2801167802Sjkim- AcpiUnloadTable: Not needed. 2802167802Sjkim 2803167802SjkimNew ACPICA interfaces: 2804167802Sjkim 2805193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 2806193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 2807193267Sjkimallocated memory after it becomes available. 2808193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 2809193267Sjkimin the RSDT/XSDT. 2810167802Sjkim 2811167802SjkimOther ACPICA changes: 2812167802Sjkim 2813193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 2814193267SjkimAcpiOsUnmapMemory to free this mapping. 2815193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 2816193267Sjkiminternally and must not be deleted by the caller. Use of this interface 2817193267Sjkimcauses no additional dynamic memory allocation. 2818193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 2819193267Sjkimit appeared to be unused. 2820193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 2821193267Sjkimother allocation interfaces. 2822193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 2823193267Sjkimparameters. 2824193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 2825193267Sjkimbit platforms. Was previously 64 bits on all platforms. 2826193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 2827193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 2828193267Sjkimconstructed pointer to the actual global lock. 2829167802Sjkim 2830167802SjkimPorting to the new table manager: 2831167802Sjkim 2832193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 2833193267Sjkimduring the OS initialization process. It allows the host to specify an area 2834193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 2835193267Sjkimtable). This allows the host to access ACPI tables before memory management 2836193267Sjkimis initialized and running. 2837193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 2838193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 2839193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 2840193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 2841193267SjkimTable Manager, and does not have to be called before the Table Manager can 2842193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 2843193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 2844193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 2845193267SjkimFor example, bitfields have been completely removed because of their lack of 2846193267Sjkimportability across C compilers. 2847193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 2848193267Sjkimversions are used. (see acwin.h) 2849167802Sjkim 2850167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 2851167802Sjkim 2852167802SjkimNew files: tbfind.c 2853167802Sjkim 2854193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2855193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2856193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2857193267Sjkima much larger code and data size. 2858167802Sjkim 2859167802Sjkim Previous Release: 2860167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2861167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2862167802Sjkim Current Release: 2863167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2864167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2865167802Sjkim 2866167802Sjkim 2867167802Sjkim2) iASL Compiler/Disassembler and Tools: 2868167802Sjkim 2869167802SjkimNo changes for this release. 2870167802Sjkim 2871167802Sjkim---------------------------------------- 2872167802Sjkim21 July 2006. Summary of changes for version 20060721: 2873167802Sjkim 2874167802Sjkim1) ACPI CA Core Subsystem: 2875167802Sjkim 2876193267SjkimThe full source code for the ASL test suite used to validate the iASL 2877193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 2878193267Sjkimsource for the first time. The source is contained in a separate package and 2879193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 2880193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 2881167802SjkimSuietov) 2882167802Sjkim 2883193267SjkimCompleted a new design and implementation for support of the ACPI Global 2884193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 2885193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 2886193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 2887193267Sjkimlock - especially in cases such as the Embedded Controller driver where 2888193267Sjkimthere is a tight coupling between the OS and the BIOS. 2889167802Sjkim 2890193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 2891193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 2892193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 2893193267Sjkimis signaled directly from the interrupt handler. 2894167802Sjkim 2895193267SjkimImplemented support within the AML interpreter for package objects that 2896193267Sjkimcontain a larger AML length (package list length) than the package element 2897193267Sjkimcount. In this case, the length of the package is truncated to match the 2898193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 2899193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 2900193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 2901167802Sjkim 2902193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 2903193267Sjkimsupport all constant values, now including the Zero and One opcodes. 2904193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 2905193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 2906193267Sjkimconstant values for this parameter. 2907167802Sjkim 2908167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2909193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 2910193267Sjkim350) 2911167802Sjkim 2912193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2913193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2914193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2915193267Sjkima much larger code and data size. 2916167802Sjkim 2917167802Sjkim Previous Release: 2918167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 2919167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 2920167802Sjkim Current Release: 2921167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2922167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2923167802Sjkim 2924167802Sjkim 2925167802Sjkim2) iASL Compiler/Disassembler and Tools: 2926167802Sjkim 2927167802SjkimNo changes for this release. 2928167802Sjkim 2929167802Sjkim---------------------------------------- 2930167802Sjkim07 July 2006. Summary of changes for version 20060707: 2931167802Sjkim 2932167802Sjkim1) ACPI CA Core Subsystem: 2933167802Sjkim 2934193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 2935193267Sjkimthat do not allow the initialization of address pointers within packed 2936193267Sjkimstructures - even though the hardware itself may support misaligned 2937193267Sjkimtransfers. Some of the debug data structures are packed by default to 2938193267Sjkimminimize size. 2939167802Sjkim 2940193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 2941193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 2942193267Sjkimoperation of AML mutexes and recursive control methods. 2943167802Sjkim 2944193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 2945193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 2946193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 2947193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 2948167802Sjkim 2949193267SjkimFixed a possible leak of an OwnerID in the error path of 2950193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 2951193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 2952193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 2953193267SjkimLance Ortiz.) 2954167802Sjkim 2955193267SjkimFixed a problem with Serialized control methods where the semaphore 2956193267Sjkimassociated with the method could be over-signaled after multiple method 2957193267Sjkiminvocations. 2958167802Sjkim 2959193267SjkimFixed two issues with the locking of the internal namespace data structure. 2960193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 2961193267Sjkimnamespace during the namespace deletion associated with the table unload 2962193267Sjkim(with assistance from Linn Crosetto.) 2963167802Sjkim 2964167802SjkimFixed problem reports (Valery Podrezov) integrated: 2965193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 2966167802Sjkim 2967167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2968167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 2969193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 2970193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 2971193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 2972193267Sjkim(BZ 376) 2973193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 2974167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 2975193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 2976193267SjkimHandler (BZ (380) 2977193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 2978193267Sjkim(BZ 381) 2979167802Sjkim 2980193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2981193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2982193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2983193267Sjkima much larger code and data size. 2984167802Sjkim 2985167802Sjkim Previous Release: 2986167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2987167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2988167802Sjkim Current Release: 2989167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2990167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2991167802Sjkim 2992167802Sjkim 2993167802Sjkim2) iASL Compiler/Disassembler and Tools: 2994167802Sjkim 2995167802SjkimFixed problem reports: 2996193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 2997193267Sjkim436) 2998167802Sjkim 2999167802Sjkim---------------------------------------- 3000167802Sjkim23 June 2006. Summary of changes for version 20060623: 3001167802Sjkim 3002167802Sjkim1) ACPI CA Core Subsystem: 3003167802Sjkim 3004193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 3005193267Sjkimallows the type to be customized to the host OS for improved efficiency 3006193267Sjkim(since a spinlock is usually a very small object.) 3007167802Sjkim 3008193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 3009193267Sjkimthe ACPI specification, these bits should be preserved when writing the 3010193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 3011193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 3012167802Sjkim 3013193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 3014193267Sjkimhost operating systems have separate mutex and semaphore objects, this 3015193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 3016193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 3017193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 3018193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 3019193267Sjkimat this time. (See acpiosxf.h) 3020167802Sjkim 3021193267SjkimFixed several problems with the support for the control method SyncLevel 3022193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 3023193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 3024193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 3025193267Sjkimis now implemented with a mutex instead of a semaphore. 3026167802Sjkim 3027193267SjkimFixed three instances of the use of the C shift operator in the bitfield 3028193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 3029193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 3030193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 3031193267Sjkimavoided. (Fiodor Suietov) 3032167802Sjkim 3033193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 3034193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 3035193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 3036193267Sjkimthe tables present in the RSDT/XSDT.) 3037167802Sjkim 3038193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3039193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3040193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3041193267Sjkima much larger code and data size. 3042167802Sjkim 3043167802Sjkim Previous Release: 3044167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3045167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3046167802Sjkim Current Release: 3047167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 3048167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 3049167802Sjkim 3050167802Sjkim 3051167802Sjkim2) iASL Compiler/Disassembler and Tools: 3052167802Sjkim 3053167802SjkimNo changes for this release. 3054167802Sjkim 3055167802Sjkim---------------------------------------- 3056167802Sjkim08 June 2006. Summary of changes for version 20060608: 3057167802Sjkim 3058167802Sjkim1) ACPI CA Core Subsystem: 3059167802Sjkim 3060193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 3061193267Sjkimchange should eliminate all problems caused by attempting to acquire a 3062193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 3063193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 3064193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 3065193267Sjkimable to eliminate any workarounds for being called at interrupt level. 3066167802Sjkim 3067193267SjkimFixed a regression introduced in 20060526 where the ACPI device 3068193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 3069193267Sjkimdid not have an optional _INI method. 3070167802Sjkim 3071193267SjkimFixed an IndexField issue where a write to the Data Register should be 3072193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 3073193267SjkimFiodor Suietov) 3074167802Sjkim 3075167802SjkimFixed problem reports (Valery Podrezov) integrated: 3076193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 3077167802Sjkim 3078167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3079193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 3080167802Sjkim 3081193267SjkimRemoved four global mutexes that were obsolete and were no longer being 3082193267Sjkimused. 3083167802Sjkim 3084193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3085193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3086193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3087193267Sjkima much larger code and data size. 3088167802Sjkim 3089167802Sjkim Previous Release: 3090167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3091167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3092167802Sjkim Current Release: 3093167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3094167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3095167802Sjkim 3096167802Sjkim 3097167802Sjkim2) iASL Compiler/Disassembler and Tools: 3098167802Sjkim 3099193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 3100193267Sjkimmachines. 3101167802Sjkim 3102167802SjkimFixed problem reports integrated: 3103193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 3104193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 3105193267SjkimSuietov) 3106167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 3107167802Sjkim 3108167802Sjkim---------------------------------------- 3109167802Sjkim26 May 2006. Summary of changes for version 20060526: 3110167802Sjkim 3111167802Sjkim1) ACPI CA Core Subsystem: 3112167802Sjkim 3113193267SjkimRestructured, flattened, and simplified the internal interfaces for 3114193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 3115193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 3116167802Sjkim 3117193267SjkimFixed a problem with the CopyObject operator where the first parameter was 3118193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 3119193267SjkimCaused various errors and unexpected behavior. 3120167802Sjkim 3121193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 3122193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 3123193267Sjkimcompilers when the shift value is larger than the datatype width is 3124193267Sjkimapparently not well defined, the interpreter now detects this condition and 3125193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 3126167802Sjkim 3127167802SjkimFixed problem reports (Valery Podrezov) integrated: 3128193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 3129193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 3130167802Sjkim 3131167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3132193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 3133193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 3134193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 3135193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 3136167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 3137193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 3138167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 3139167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 3140193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 3141193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 3142193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 3143167802Sjkim 3144193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3145193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3146193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3147193267Sjkima much larger code and data size. 3148167802Sjkim 3149167802Sjkim Previous Release: 3150167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3151167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3152167802Sjkim Current Release: 3153167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3154167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3155167802Sjkim 3156167802Sjkim 3157167802Sjkim2) iASL Compiler/Disassembler and Tools: 3158167802Sjkim 3159193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 3160193267Sjkimnamespace identifiers with no collision with existing resource descriptor 3161193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 3162193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 3163167802Sjkimerrors. (With assistance from Thomas Renninger) 3164167802Sjkim 3165193267SjkimDisassembler: fixed an incorrect disassembly problem with the 3166193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 3167193267Sjkimdisassembly of some Alias operators. 3168167802Sjkim 3169167802Sjkim---------------------------------------- 3170167802Sjkim12 May 2006. Summary of changes for version 20060512: 3171167802Sjkim 3172167802Sjkim1) ACPI CA Core Subsystem: 3173167802Sjkim 3174193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 3175193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 3176193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 3177193267SjkimType parameter. The Type tells the host what type of execution is being 3178193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 3179193267SjkimThis allows the host to queue and execute the request as appropriate for the 3180193267Sjkimrequest type, possibly using different work queues and different priorities 3181193267Sjkimfor the various request types. This enables fixes for multithreading 3182193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 3183193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 3184167802Sjkim 3185193267SjkimFixed a possible memory leak associated with the support for the so-called 3186193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 3187193267SjkimSuietov) 3188167802Sjkim 3189193267SjkimFixed a problem with the Load() operator where a table load from an 3190193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 3191193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 3192167802Sjkim 3193193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3194193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3195193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3196193267Sjkima much larger code and data size. 3197167802Sjkim 3198167802Sjkim Previous Release: 3199167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3200167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3201167802Sjkim Current Release: 3202167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3203167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3204167802Sjkim 3205167802Sjkim 3206167802Sjkim 3207167802Sjkim2) iASL Compiler/Disassembler and Tools: 3208167802Sjkim 3209193267SjkimDisassembler: Implemented support to cross reference the internal namespace 3210193267Sjkimand automatically generate ASL External() statements for symbols not defined 3211193267Sjkimwithin the current table being disassembled. This will simplify the 3212193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 3213193267Sjkimthese statements will no longer have to be added manually. 3214167802Sjkim 3215193267SjkimDisassembler: Implemented experimental support to automatically detect 3216193267Sjkiminvocations of external control methods and generate appropriate External() 3217193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 3218193267Sjkimuntil the number of arguments for each control method is known. Currently, 3219193267Sjkimstandalone method invocations and invocations as the source operand of a 3220193267SjkimStore() statement are supported. 3221167802Sjkim 3222193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 3223193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 3224193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 3225193267Sjkimmore readable and likely closer to the original ASL source. 3226167802Sjkim 3227167802Sjkim---------------------------------------- 3228167802Sjkim21 April 2006. Summary of changes for version 20060421: 3229167802Sjkim 3230167802Sjkim1) ACPI CA Core Subsystem: 3231167802Sjkim 3232193267SjkimRemoved a device initialization optimization introduced in 20051216 where 3233193267Sjkimthe _STA method was not run unless an _INI was also present for the same 3234193267Sjkimdevice. This optimization could cause problems because it could allow _INI 3235193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 3236193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 3237193267Sjkimbe discovered, and the children of the device would be incorrectly 3238167802Sjkimtraversed.) 3239167802Sjkim 3240193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 3241193267Sjkimcontain _INI are identified and ignored during device initialization. 3242193267SjkimSelectively running _STA can significantly improve boot time on large 3243193267Sjkimmachines (with assistance from Len Brown.) 3244167802Sjkim 3245193267SjkimImplemented support for the device initialization case where the returned 3246193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 3247193267Sjkimis not run, but the device children are examined for presence, as per the 3248193267SjkimACPI specification. 3249167802Sjkim 3250193267SjkimImplemented an additional change to the IndexField support in order to 3251193267Sjkimconform to MS behavior. The value written to the Index Register is not 3252193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 3253193267Sjkimthe parent Index Field. (Fiodor Suietov) 3254167802Sjkim 3255193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 3256193267Sjkiminterface is called during the creation of all AML operation regions, and 3257193267Sjkimallows the host OS to exert control over what addresses it will allow the 3258193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 3259193267Sjkimcause a runtime exception when they are actually accessed (will not affect 3260193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 3261167802Sjkimimplementation. 3262167802Sjkim 3263193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 3264193267Sjkiminterface allows the host OS to match the various "optional" 3265193267Sjkiminterface/behavior strings for the _OSI predefined control method as 3266193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 3267193267Sjkimfor an example implementation. 3268167802Sjkim 3269193267SjkimRestructured and corrected various problems in the exception handling code 3270193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 3271193267Sjkim(with assistance from Takayoshi Kochi.) 3272167802Sjkim 3273193267SjkimModified the Linux source converter to ignore quoted string literals while 3274193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 3275193267Sjkimwith the disassembler and other areas where such strings must not be 3276193267Sjkimmodified. 3277167802Sjkim 3278193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 3279193267Sjkimname. This allows the Linux source converter to convert the names, now that 3280193267Sjkimthe converter ignores quoted strings. 3281167802Sjkim 3282193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3283193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3284193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3285193267Sjkima much larger code and data size. 3286193267Sjkim 3287167802Sjkim Previous Release: 3288167802Sjkim 3289167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3290167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3291167802Sjkim Current Release: 3292167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3293167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3294167802Sjkim 3295167802Sjkim 3296167802Sjkim2) iASL Compiler/Disassembler and Tools: 3297167802Sjkim 3298193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 3299193267Sjkim(w2 flag). 3300167802Sjkim 3301193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 3302193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 3303193267Sjkimcheck for the possible timeout, a warning is issued. 3304167802Sjkim 3305193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 3306193267Sjkimoperand and it also does not use the function return value from the 3307193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 3308167802Sjkim 3309193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 3310193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 3311193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 3312193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 3313193267Sjkimdon't look like they will ever be used. For example, the reserved methods 3314193267Sjkim(starting with an underscore) are usually not referenced because it is 3315193267Sjkimexpected that the OS will invoke them. 3316167802Sjkim 3317167802Sjkim---------------------------------------- 3318167802Sjkim31 March 2006. Summary of changes for version 20060331: 3319167802Sjkim 3320167802Sjkim1) ACPI CA Core Subsystem: 3321167802Sjkim 3322193267SjkimImplemented header file support for the following additional ACPI tables: 3323193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 3324193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 3325193267Sjkimare available for use by device drivers and other software. 3326167802Sjkim 3327193267SjkimImplemented support to allow tables that contain ACPI names with invalid 3328193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 3329193267Sjkimfail, but since there are several known cases of such tables on existing 3330193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 3331193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 3332167802Sjkim 3333193267SjkimFixed a couple regressions introduced during the memory optimization in the 3334193267Sjkim20060317 release. The namespace node definition required additional 3335193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 3336193267Sjkimrestored to 32-bit. (Valery Podrezov) 3337167802Sjkim 3338193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 3339193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 3340193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 3341193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 3342167802Sjkim(Valery Podrezov, Fiodor Suietov) 3343167802Sjkim 3344193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 3345193267Sjkimregion where a cached memory mapping was not deleted. This became a 3346193267Sjkimnoticeable problem for operation regions that are defined within frequently 3347193267Sjkimused control methods. (Dana Meyers) 3348167802Sjkim 3349193267SjkimReorganized the ACPI table header files into two main files: one for the 3350193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 3351193267SjkimACPI tables that are consumed by the drivers and other software. The various 3352193267SjkimFADT definitions were merged into one common section and three different 3353193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 3354167802Sjkim 3355193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3356193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3357193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3358193267Sjkima much larger code and data size. 3359167802Sjkim 3360167802Sjkim Previous Release: 3361167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3362167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3363167802Sjkim Current Release: 3364167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3365167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3366167802Sjkim 3367167802Sjkim 3368167802Sjkim2) iASL Compiler/Disassembler and Tools: 3369167802Sjkim 3370193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 3371193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 3372193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 3373193267Sjkimsupported. 3374167802Sjkim 3375193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 3376193267Sjkimenables the disassembly of such tables. Invalid characters within names are 3377193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 3378193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 3379193267Sjkimcharacter. 3380167802Sjkim 3381193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 3382193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 3383167802Sjkim 3384193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 3385193267Sjkimmakefile for the AcpiXtract utility. 3386167802Sjkim 3387167802Sjkim---------------------------------------- 3388167802Sjkim17 March 2006. Summary of changes for version 20060317: 3389167802Sjkim 3390167802Sjkim1) ACPI CA Core Subsystem: 3391167802Sjkim 3392193267SjkimImplemented the use of a cache object for all internal namespace nodes. 3393193267SjkimSince there are about 1000 static nodes in a typical system, this will 3394193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 3395193267Sjkimoverhead (such as a slab allocator.) 3396167802Sjkim 3397193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 3398193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 3399193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 3400193267Sjkimand 32 bytes for the 64-bit case. 3401167802Sjkim 3402193267SjkimOptimized several internal data structures to reduce object size on 64-bit 3403193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 3404193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 3405193267Sjkiminstances corresponding to the namespace objects. 3406167802Sjkim 3407193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 3408193267Sjkimand "Windows 2006". 3409167802Sjkim 3410193267SjkimSplit the allocation tracking mechanism out to a separate file, from 3411193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 3412193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 3413193267Sjkimdistributions. 3414167802Sjkim 3415193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 3416193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 3417193267Sjkimmacros.) 3418167802Sjkim 3419193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3420193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3421193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3422193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3423193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3424193267Sjkimcompiler options used during generation. 3425167802Sjkim 3426167802Sjkim Previous Release: 3427167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3428167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3429167802Sjkim Current Release: 3430167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3431167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3432167802Sjkim 3433167802Sjkim 3434167802Sjkim2) iASL Compiler/Disassembler and Tools: 3435167802Sjkim 3436193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 3437193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 3438193267Sjkimfile and dump the binary output to separate files. It can also display a 3439193267Sjkimsummary of the input file including the headers for each table found and 3440193267Sjkimwill extract any single ACPI table, with any signature. (See 3441167802Sjkimsource/tools/acpixtract) 3442167802Sjkim 3443167802Sjkim---------------------------------------- 3444167802Sjkim10 March 2006. Summary of changes for version 20060310: 3445167802Sjkim 3446167802Sjkim1) ACPI CA Core Subsystem: 3447167802Sjkim 3448193267SjkimTagged all external interfaces to the subsystem with the new 3449193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 3450193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 3451193267Sjkimmacro. The default definition is NULL. 3452167802Sjkim 3453193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 3454193267SjkimThis allows the host to define this as necessary to simplify kernel 3455193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 3456167802Sjkim 3457193267SjkimFixed two interpreter problems related to error processing, the deletion of 3458193267Sjkimobjects, and placing invalid pointers onto the internal operator result 3459193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 3460167802Sjkim 3461193267SjkimIncreased the reference count threshold where a warning is emitted for large 3462193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 3463193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 3464193267Sjkim0x800. 3465167802Sjkim 3466193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 3467193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 3468193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 3469193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 3470193267SjkimACPI_FREE. 3471167802Sjkim 3472193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3473193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3474193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3475193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3476193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3477193267Sjkimcompiler options used during generation. 3478167802Sjkim 3479167802Sjkim Previous Release: 3480167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3481167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3482167802Sjkim Current Release: 3483167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3484167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3485167802Sjkim 3486167802Sjkim 3487167802Sjkim2) iASL Compiler/Disassembler: 3488167802Sjkim 3489193267SjkimDisassembler: implemented support for symbolic resource descriptor 3490193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 3491193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 3492193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 3493193267Sjkimthis support brings the disassembled code very close to the original ASL 3494193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 3495193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 3496193267Sjkimfixed offsets. 3497167802Sjkim 3498193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 3499193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 3500193267Sjkimspecification, and will be added for ACPI 3.0b. 3501167802Sjkim 3502193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 3503193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 3504167802Sjkim 3505193267SjkimFixed a problem with the error message that occurs when an invalid string is 3506193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 3507193267SjkimThe correct message is now displayed. 3508167802Sjkim 3509167802Sjkim---------------------------------------- 3510167802Sjkim17 February 2006. Summary of changes for version 20060217: 3511167802Sjkim 3512167802Sjkim1) ACPI CA Core Subsystem: 3513167802Sjkim 3514193267SjkimImplemented a change to the IndexField support to match the behavior of the 3515193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 3516193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 3517193267SjkimThis should fix IndexField problems seen on some machines where the Data 3518193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 3519193267Sjkimclarified on this point. 3520167802Sjkim 3521193267SjkimFixed a problem where several resource descriptor types could overrun the 3522193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 3523193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 3524193267Sjkimaffect all platforms. 3525167802Sjkim 3526193267SjkimFixed a problem where individual resource descriptors were misaligned within 3527193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 3528167802Sjkim 3529193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3530193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3531193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3532193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3533193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3534193267Sjkimcompiler options used during generation. 3535167802Sjkim 3536167802Sjkim Previous Release: 3537167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3538167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3539167802Sjkim Current Release: 3540167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3541167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3542167802Sjkim 3543167802Sjkim 3544167802Sjkim2) iASL Compiler/Disassembler: 3545167802Sjkim 3546193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 3547193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 3548193267Sjkimdefined method (Throttling Depth Limit.) 3549167802Sjkim 3550193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 3551193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 3552167802Sjkim 3553167802Sjkim---------------------------------------- 3554167802Sjkim10 February 2006. Summary of changes for version 20060210: 3555167802Sjkim 3556167802Sjkim1) ACPI CA Core Subsystem: 3557167802Sjkim 3558193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 3559193267Sjkimnormal execution. These became apparent after the conversion from 3560193267SjkimACPI_DEBUG_PRINT. 3561167802Sjkim 3562193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 3563193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 3564167802Sjkim 3565193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 3566193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 3567193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 3568167802Sjkim 3569193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 3570193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 3571193267Sjkim5480) 3572167802Sjkim 3573193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 3574193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 3575193267Sjkim(Valery Podrezov, BZ 5427) 3576167802Sjkim 3577193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 3578193267SjkimPodrezov, BZ 5336) 3579167802Sjkim 3580167802SjkimFixed several warnings during the 64-bit code generation. 3581167802Sjkim 3582193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 3583193267Sjkimafter an if() statement that is followed immediately by a comment, improving 3584193267Sjkimreadability of the Linux code. 3585167802Sjkim 3586193267SjkimCode and Data Size: The current and previous library sizes for the core 3587193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3588193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3589193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3590193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3591193267Sjkimand data size. Note that these values will vary depending on the efficiency 3592193267Sjkimof the compiler and the compiler options used during generation. 3593167802Sjkim 3594167802Sjkim Previous Release: 3595167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3596167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3597167802Sjkim Current Release: 3598167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3599167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3600167802Sjkim 3601167802Sjkim 3602167802Sjkim2) iASL Compiler/Disassembler: 3603167802Sjkim 3604193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 3605193267Sjkimexpression for the BankValue parameter. 3606167802Sjkim 3607167802Sjkim---------------------------------------- 3608167802Sjkim27 January 2006. Summary of changes for version 20060127: 3609167802Sjkim 3610167802Sjkim1) ACPI CA Core Subsystem: 3611167802Sjkim 3612193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 3613193267Sjkimreferences within resource package objects for the _PRT method. This support 3614193267Sjkimis in addition to the previously implemented unresolved reference support 3615193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 3616193267Sjkimunresolved references will be passed through to the caller as a NULL package 3617167802Sjkimentry. 3618167802Sjkim 3619193267SjkimImplemented and deployed new macros and functions for error and warning 3620193267Sjkimmessages across the subsystem. These macros are simpler and generate less 3621193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 3622193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 3623193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 3624193267Sjkimmacros. 3625167802Sjkim 3626193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 3627193267SjkimAcquire/Release Lock OSL interfaces. 3628167802Sjkim 3629193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 3630193267Sjkimresolved, in both the interpreter and the iASL compiler. 3631167802Sjkim 3632193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 3633193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 3634193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 3635193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 3636167802Sjkimcause a fatal exception. 3637167802Sjkim 3638193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 3639193267Sjkiminterface. (With assistance from Thomas Renninger) 3640167802Sjkim 3641193267SjkimCode and Data Size: The current and previous library sizes for the core 3642193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3643193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3644193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3645193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3646193267Sjkimand data size. Note that these values will vary depending on the efficiency 3647193267Sjkimof the compiler and the compiler options used during generation. 3648167802Sjkim 3649167802Sjkim Previous Release: 3650167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3651167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3652167802Sjkim Current Release: 3653167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3654167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3655167802Sjkim 3656167802Sjkim 3657167802Sjkim2) iASL Compiler/Disassembler: 3658167802Sjkim 3659193267SjkimFixed an internal error that was generated for any forward references to ASL 3660193267SjkimAlias objects. 3661167802Sjkim 3662167802Sjkim---------------------------------------- 3663167802Sjkim13 January 2006. Summary of changes for version 20060113: 3664167802Sjkim 3665167802Sjkim1) ACPI CA Core Subsystem: 3666167802Sjkim 3667193267SjkimAdded 2006 copyright to all module headers and signons. This affects 3668193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 3669193267Sjkimutilities. 3670193267Sjkim 3671193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 3672193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 3673193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 3674193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 3675193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 3676193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 3677193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 3678193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 3679193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 3680193267Sjkimbut all error/warning reporting may be disabled if desired (and code 3681193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 3682193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 3683193267Sjkimthe same. 3684167802Sjkim 3685193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 3686193267Sjkimnot properly deleted for every successful invocation of the command. 3687167802Sjkim 3688193267SjkimCode and Data Size: The current and previous library sizes for the core 3689193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3690193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3691193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3692193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3693193267Sjkimand data size. Note that these values will vary depending on the efficiency 3694193267Sjkimof the compiler and the compiler options used during generation. 3695167802Sjkim 3696167802Sjkim Previous Release: 3697167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3698167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3699167802Sjkim Current Release: 3700167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3701167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3702167802Sjkim 3703167802Sjkim 3704167802Sjkim2) iASL Compiler/Disassembler: 3705167802Sjkim 3706193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 3707193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 3708167802Sjkim 3709167802Sjkim---------------------------------------- 3710167802Sjkim16 December 2005. Summary of changes for version 20051216: 3711167802Sjkim 3712167802Sjkim1) ACPI CA Core Subsystem: 3713167802Sjkim 3714193267SjkimImplemented optional support to allow unresolved names within ASL Package 3715193267Sjkimobjects. A null object is inserted in the package when a named reference 3716193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 3717193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 3718193267Sjkimthat contain such code. 3719167802Sjkim 3720193267SjkimImplemented an optimization to the initialization sequence that can improve 3721193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 3722193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 3723193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 3724193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 3725167802Sjkim(Prototype and assistance from Dong Wei) 3726167802Sjkim 3727193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 3728193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 3729193267Sjkimused as before. 3730167802Sjkim 3731193267SjkimFixed some possible memory leaks found within the execution path of the 3732193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 3733167802Sjkim 3734193267SjkimFixed a problem introduced in the 20051202 release where an exception is 3735193267Sjkimgenerated during method execution if a control method attempts to declare 3736193267Sjkimanother method. 3737167802Sjkim 3738193267SjkimMoved resource descriptor string constants that are used by both the AML 3739193267Sjkimdisassembler and AML debugger to the common utilities directory so that 3740193267Sjkimthese components are independent. 3741167802Sjkim 3742193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 3743193267Sjkimexceptions during control method execution (method is not aborted.) 3744167802Sjkim 3745193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 3746193267Sjkimgeneration. 3747167802Sjkim 3748193267SjkimCode and Data Size: The current and previous library sizes for the core 3749193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3750193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3751193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3752193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3753193267Sjkimand data size. Note that these values will vary depending on the efficiency 3754193267Sjkimof the compiler and the compiler options used during generation. 3755167802Sjkim 3756167802Sjkim Previous Release: 3757167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3758167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3759167802Sjkim Current Release: 3760167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3761167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3762167802Sjkim 3763167802Sjkim 3764167802Sjkim2) iASL Compiler/Disassembler: 3765167802Sjkim 3766193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 3767193267Sjkimmethod call was made from within a Return statement. 3768167802Sjkim 3769167802Sjkim---------------------------------------- 3770167802Sjkim02 December 2005. Summary of changes for version 20051202: 3771167802Sjkim 3772167802Sjkim1) ACPI CA Core Subsystem: 3773167802Sjkim 3774193267SjkimModified the parsing of control methods to no longer create namespace 3775193267Sjkimobjects during the first pass of the parse. Objects are now created only 3776193267Sjkimduring the execute phase, at the moment the namespace creation operator is 3777193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 3778193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 3779193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 3780193267Sjkimcorrectly block multiple threads from attempting to create the same object 3781193267Sjkimmore than once. 3782167802Sjkim 3783193267SjkimIncreased the number of available Owner Ids for namespace object tracking 3784193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 3785193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 3786167802Sjkim 3787193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 3788193267Sjkim-b switch (batch mode) is used. 3789167802Sjkim 3790193267SjkimEnhanced the namespace dump routine to output the owner ID for each 3791193267Sjkimnamespace object. 3792167802Sjkim 3793193267SjkimCode and Data Size: The current and previous library sizes for the core 3794193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3795193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3796193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3797193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3798193267Sjkimand data size. Note that these values will vary depending on the efficiency 3799193267Sjkimof the compiler and the compiler options used during generation. 3800167802Sjkim 3801167802Sjkim Previous Release: 3802167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3803167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3804167802Sjkim Current Release: 3805167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3806167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3807167802Sjkim 3808167802Sjkim 3809167802Sjkim2) iASL Compiler/Disassembler: 3810167802Sjkim 3811193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 3812193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 3813193267Sjkimand this error is now detected and flagged during the analysis phase. 3814167802Sjkim 3815193267SjkimDisassembler: The disassembly now includes the contents of the original 3816193267Sjkimtable header within a comment at the start of the file. This includes the 3817193267Sjkimname and version of the original ASL compiler. 3818167802Sjkim 3819167802Sjkim---------------------------------------- 3820167802Sjkim17 November 2005. Summary of changes for version 20051117: 3821167802Sjkim 3822167802Sjkim1) ACPI CA Core Subsystem: 3823167802Sjkim 3824193267SjkimFixed a problem in the AML parser where the method thread count could be 3825193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 3826193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 3827193267SjkimThis also fixed a related regression with the mechanism that detects and 3828193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 3829193267Sjkimdeployment of the new OwnerId mechanism.) 3830167802Sjkim 3831193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 3832193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 3833193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 3834193267Sjkimload should not be aborted if there are problems with any single control 3835193267Sjkimmethod, thus rendering this feature rather pointless. 3836167802Sjkim 3837193267SjkimFixed a problem with the new table-driven resource manager where an internal 3838193267Sjkimbuffer overflow could occur for small resource templates. 3839167802Sjkim 3840193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 3841193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 3842193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 3843167802Sjkim 3844193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 3845193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 3846193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 3847193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 3848193267SjkimToString operator. 3849167802Sjkim 3850193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 3851193267Sjkimon a semaphore object would incorrectly timeout. This allows the 3852193267Sjkimmultithreading features of the AcpiExec utility to work properly under 3853193267SjkimWindows. 3854167802Sjkim 3855193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 3856193267Sjkimthe recently added file named "utresrc.c". 3857167802Sjkim 3858193267SjkimCode and Data Size: The current and previous library sizes for the core 3859193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3860193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3861193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3862193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3863193267Sjkimand data size. Note that these values will vary depending on the efficiency 3864193267Sjkimof the compiler and the compiler options used during generation. 3865167802Sjkim 3866167802Sjkim Previous Release: 3867167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3868167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3869167802Sjkim Current Release: 3870167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3871167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3872167802Sjkim 3873167802Sjkim 3874167802Sjkim2) iASL Compiler/Disassembler: 3875167802Sjkim 3876193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 3877193267Sjkimspecification. For the iASL compiler, this means that string literals within 3878193267Sjkimthe source ASL can be of any length. 3879167802Sjkim 3880193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 3881193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 3882193267Sjkimthe end of the entire resource template. 3883167802Sjkim 3884193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 3885193267Sjkimconstructed during the parse phase, before any transforms are applied to the 3886193267Sjkimtree. The transformed tree is dumped also. 3887167802Sjkim 3888167802Sjkim---------------------------------------- 3889167802Sjkim02 November 2005. Summary of changes for version 20051102: 3890167802Sjkim 3891167802Sjkim1) ACPI CA Core Subsystem: 3892167802Sjkim 3893193267SjkimModified the subsystem initialization sequence to improve GPE support. The 3894193267SjkimGPE initialization has been split into two parts in order to defer execution 3895193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 3896193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 3897193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 3898193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 3899167802Sjkim 3900193267SjkimConverted the ACPI internal object disassemble and display code within the 3901193267SjkimAML debugger to fully table-driven operation, reducing code size and 3902193267Sjkimincreasing maintainability. 3903167802Sjkim 3904193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 3905193267Sjkimin the 20051021 release. 3906167802Sjkim 3907193267SjkimImplemented support for "local" internal ACPI object types within the 3908193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 3909193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 3910193267Sjkimreference objects. 3911167802Sjkim 3912193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 3913193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 3914167802Sjkim 3915193267SjkimCode and Data Size: The current and previous library sizes for the core 3916193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3917193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3918193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3919193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3920193267Sjkimand data size. Note that these values will vary depending on the efficiency 3921193267Sjkimof the compiler and the compiler options used during generation. 3922167802Sjkim 3923167802Sjkim Previous Release: 3924167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3925167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3926167802Sjkim Current Release: 3927167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3928167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3929167802Sjkim 3930167802Sjkim 3931167802Sjkim2) iASL Compiler/Disassembler: 3932167802Sjkim 3933193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 3934193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 3935167802Sjkim 3936193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 3937193267Sjkimcharacters within comment fields. The scan is now always performed and is no 3938193267Sjkimlonger optional, detecting invalid characters within a source file 3939193267Sjkimimmediately rather than during the parse phase or later. 3940167802Sjkim 3941193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 3942193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 3943193267Sjkimreduced. This should improve performance and reduce the possibility of parse 3944193267Sjkimstack overflow. 3945167802Sjkim 3946193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 3947193267Sjkimwith the addition of a %expected statement, the compiler generates from 3948193267Sjkimsource with no warnings. 3949167802Sjkim 3950193267SjkimFixed a possible segment fault in the disassembler if the input filename 3951193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 3952167802Sjkim 3953167802Sjkim---------------------------------------- 3954151937Sjkim21 October 2005. Summary of changes for version 20051021: 3955151937Sjkim 3956151937Sjkim1) ACPI CA Core Subsystem: 3957151937Sjkim 3958193267SjkimImplemented support for the EM64T and other x86-64 processors. This 3959193267Sjkimessentially entails recognizing that these processors support non-aligned 3960193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 3961193267Sjkimhardware support for non-aligned transfers. 3962151937Sjkim 3963193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 3964193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 3965193267Sjkiminternal format and the reverse) and the debug code to dump internal 3966193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 3967193267Sjkimimproving maintainability. 3968151937Sjkim 3969193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 3970193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 3971193267SjkimAlexey Starikovskiy) 3972151937Sjkim 3973193267SjkimImplemented support within the resource conversion code for the Type- 3974193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 3975151937Sjkim 3976193267SjkimFixed some issues within the resource conversion code for the type-specific 3977193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 3978193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 3979193267SjkimTTP flags into two separate fields. 3980151937Sjkim 3981193267SjkimCode and Data Size: The current and previous library sizes for the core 3982193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3983193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3984193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3985193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3986193267Sjkimand data size. Note that these values will vary depending on the efficiency 3987193267Sjkimof the compiler and the compiler options used during generation. 3988151937Sjkim 3989151937Sjkim Previous Release: 3990151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3991151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3992151937Sjkim Current Release: 3993151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3994151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3995151937Sjkim 3996151937Sjkim 3997167802Sjkim 3998151937Sjkim2) iASL Compiler/Disassembler: 3999151937Sjkim 4000193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 4001193267Sjkimcorresponding ResourceSource string was not also present in a resource 4002193267Sjkimdescriptor declaration. This restriction caused problems with existing 4003193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 4004193267Sjkimwas disassembled, it could not be compiled without modification. Further, 4005193267Sjkimthe modified code created a resource template with a different size than the 4006193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 4007193267Sjkimbuffer. 4008151937Sjkim 4009193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 4010193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 4011193267Sjkimreproduced when the disassembled code is recompiled. 4012151937Sjkim 4013193267SjkimImproved comments and text alignment for the resource descriptor code 4014193267Sjkimemitted by the disassembler. 4015151937Sjkim 4016193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 4017193267SjkimRegister() resource descriptor. 4018151937Sjkim 4019151937Sjkim---------------------------------------- 4020151937Sjkim30 September 2005. Summary of changes for version 20050930: 4021151937Sjkim 4022151937Sjkim1) ACPI CA Core Subsystem: 4023151937Sjkim 4024193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 4025193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 4026193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 4027193267Sjkimuse has been decreased by optimizing function parameters and local 4028193267Sjkimvariables, and naming conventions across the manager have been standardized 4029193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 4030193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 4031193267Sjkimdriver code, depending on how resources are handled by the host OS. 4032151937Sjkim 4033193267SjkimAll Resource Manager dispatch and information tables have been moved to a 4034193267Sjkimsingle location for clarity and ease of maintenance. One new file was 4035193267Sjkimcreated, named "rsinfo.c". 4036151937Sjkim 4037193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 4038193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 4039193267Sjkimto macro side-effects. However, since there exists the possibility of 4040193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 4041193267Sjkimin the debug generation case), the original macros are optionally available. 4042193267SjkimNote that some invocations of the return_VALUE macro may now cause size 4043193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 4044193267Sjkimeliminate these. (From Randy Dunlap) 4045151937Sjkim 4046193267SjkimImplemented a new mechanism to enable debug tracing for individual control 4047193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 4048193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 4049193267Sjkimdisable tracing for problematic control methods. This interface can be 4050193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 4051151937Sjkimpsxface.c for details. 4052151937Sjkim 4053193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 4054193267Sjkimspecified - a length of one is used and a warning is issued. This matches 4055193267Sjkimthe behavior of AcpiUtAllocate. 4056151937Sjkim 4057193267SjkimCode and Data Size: The current and previous library sizes for the core 4058193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4059193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4060193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4061193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4062193267Sjkimand data size. Note that these values will vary depending on the efficiency 4063193267Sjkimof the compiler and the compiler options used during generation. 4064151937Sjkim 4065151937Sjkim Previous Release: 4066151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4067151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4068151937Sjkim Current Release: 4069151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 4070151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 4071151937Sjkim 4072151937Sjkim 4073151937Sjkim2) iASL Compiler/Disassembler: 4074151937Sjkim 4075193267SjkimA remark is issued if the effective compile-time length of a package or 4076193267Sjkimbuffer is zero. Previously, this was a warning. 4077151937Sjkim 4078151937Sjkim---------------------------------------- 4079151937Sjkim16 September 2005. Summary of changes for version 20050916: 4080151937Sjkim 4081151937Sjkim1) ACPI CA Core Subsystem: 4082151937Sjkim 4083193267SjkimFixed a problem within the Resource Manager where support for the Generic 4084193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 4085193267Sjkimrecognized, parsed, disassembled, and displayed. 4086151937Sjkim 4087193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 4088193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 4089193267Sjkimreduces overall subsystem code size and code complexity. Affects the 4090193267Sjkimresource parsing and construction, disassembly, and debug dump output. 4091151937Sjkim 4092193267SjkimCleaned up and restructured the debug dump output for all resource 4093193267Sjkimdescriptors. Improved readability of the output and reduced code size. 4094151937Sjkim 4095193267SjkimFixed a problem where changes to internal data structures caused the 4096193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 4097151937Sjkim 4098193267SjkimCode and Data Size: The current and previous library sizes for the core 4099193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4100193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4101193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4102193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4103193267Sjkimand data size. Note that these values will vary depending on the efficiency 4104193267Sjkimof the compiler and the compiler options used during generation. 4105151937Sjkim 4106151937Sjkim Previous Release: 4107151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4108151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4109151937Sjkim Current Release: 4110151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4111151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4112151937Sjkim 4113151937Sjkim 4114151937Sjkim2) iASL Compiler/Disassembler: 4115151937Sjkim 4116193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 4117193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 4118193267Sjkimsimplifying compilation of the resulting ASL module. 4119151937Sjkim 4120193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 4121193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 4122193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 4123193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 4124193267Sjkimhandled correctly (especially "\\") 4125151937Sjkim 4126151937Sjkim---------------------------------------- 4127151937Sjkim02 September 2005. Summary of changes for version 20050902: 4128151937Sjkim 4129151937Sjkim1) ACPI CA Core Subsystem: 4130151937Sjkim 4131193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 4132193267Sjkimmechanisms for control method execution and recursive method invocation. 4133193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 4134193267Sjkimmessages seen on some systems. Recursive method invocation depth is 4135193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 4136151937Sjkim 4137193267SjkimCompletely eliminated all vestiges of support for the "module-level 4138193267Sjkimexecutable code" until this support is fully implemented and debugged. This 4139193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 4140193267Sjkimsome systems that invoke this support. 4141151937Sjkim 4142193267SjkimFixed a problem within the resource manager code where the transaction flags 4143193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 4144193267Sjkimspecific flag byte. 4145151937Sjkim 4146193267SjkimConsolidated duplicate code within the address descriptor resource manager 4147193267Sjkimcode, reducing overall subsystem code size. 4148151937Sjkim 4149193267SjkimFixed a fault when using the AML debugger "disassemble" command to 4150193267Sjkimdisassemble individual control methods. 4151151937Sjkim 4152193267SjkimRemoved references to the "release_current" directory within the Unix 4153193267Sjkimrelease package. 4154151937Sjkim 4155193267SjkimCode and Data Size: The current and previous core subsystem library sizes 4156193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 4157193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 4158193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 4159193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 4160193267SjkimNote that these values will vary depending on the efficiency of the compiler 4161193267Sjkimand the compiler options used during generation. 4162151937Sjkim 4163151937Sjkim Previous Release: 4164151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4165151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4166151937Sjkim Current Release: 4167151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4168151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4169151937Sjkim 4170151937Sjkim 4171151937Sjkim2) iASL Compiler/Disassembler: 4172151937Sjkim 4173193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 4174193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 4175193267SjkimInterrupt(). 4176151937Sjkim 4177193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 4178193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 4179193267Sjkimlist (range 0 - 15) 4180151937Sjkim 4181193267SjkimThe maximum length string literal within an ASL file is now restricted to 4182193267Sjkim200 characters as per the ACPI specification. 4183151937Sjkim 4184193267SjkimFixed a fault when using the -ln option (generate namespace listing). 4185151937Sjkim 4186193267SjkimImplemented an error check to determine if a DescriptorName within a 4187193267Sjkimresource descriptor has already been used within the current scope. 4188151937Sjkim 4189151937Sjkim---------------------------------------- 4190151937Sjkim15 August 2005. Summary of changes for version 20050815: 4191193267Sjkim 4192151937Sjkim1) ACPI CA Core Subsystem: 4193193267Sjkim 4194193267SjkimImplemented a full bytewise compare to determine if a table load request is 4195193267Sjkimattempting to load a duplicate table. The compare is performed if the table 4196193267Sjkimsignatures and table lengths match. This will allow different tables with 4197193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 4198193267Sjkimspecification, but discovered in the field nonetheless. 4199193267Sjkim 4200193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 4201193267Sjkim 4202193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4203193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4204193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4205193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4206193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4207193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4208193267Sjkimthe compiler options used during generation. 4209193267Sjkim 4210151937Sjkim Previous Release: 4211151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4212151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4213151937Sjkim Current Release: 4214151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4215151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4216193267Sjkim 4217193267Sjkim 4218151937Sjkim2) iASL Compiler/Disassembler: 4219193267Sjkim 4220193267SjkimFixed a problem where incorrect AML code could be generated for Package 4221193267Sjkimobjects if optimization is disabled (via the -oa switch). 4222193267Sjkim 4223193267SjkimFixed a problem with where incorrect AML code is generated for variable- 4224193267Sjkimlength packages when the package length is not specified and the number of 4225193267Sjkiminitializer values is greater than 255. 4226193267Sjkim 4227151937Sjkim 4228151937Sjkim---------------------------------------- 4229151937Sjkim29 July 2005. Summary of changes for version 20050729: 4230151937Sjkim 4231151937Sjkim1) ACPI CA Core Subsystem: 4232151937Sjkim 4233193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 4234193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 4235193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 4236193267SjkimVenkatesh Pallipadi. 4237151937Sjkim 4238193267SjkimRestructured the main interface to the AML parser in order to correctly 4239193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 4240193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 4241193267Sjkimmachines. With assistance from Alexey Starikovskiy. 4242151937Sjkim 4243193267SjkimSupport for "module level code" has been disabled in this version due to a 4244193267Sjkimnumber of issues that have appeared on various machines. The support can be 4245193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 4246193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 4247151937Sjkimdefault again. 4248151937Sjkim 4249193267SjkimModified the internal functions for debug print support to define the 4250193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 4251193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 4252151937Sjkim 4253151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 4254151937Sjkim 4255193267SjkimImplemented support to display an object count summary for the AML Debugger 4256193267Sjkimcommands Object and Methods. 4257151937Sjkim 4258193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4259193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4260193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4261193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4262193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4263193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4264193267Sjkimthe compiler options used during generation. 4265151937Sjkim 4266151937Sjkim Previous Release: 4267151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4268151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4269151937Sjkim Current Release: 4270151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4271151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4272151937Sjkim 4273151937Sjkim 4274151937Sjkim2) iASL Compiler/Disassembler: 4275151937Sjkim 4276193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 4277193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 4278193267Sjkimreserved control method. 4279151937Sjkim 4280151937Sjkim---------------------------------------- 4281151937Sjkim08 July 2005. Summary of changes for version 20050708: 4282151937Sjkim 4283151937Sjkim1) ACPI CA Core Subsystem: 4284151937Sjkim 4285193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 4286193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 4287193267Sjkimfunction that used the debug macros. This structure has been removed in 4288193267Sjkimfavor of declaring the individual elements as parameters to the debug 4289193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 4290193267SjkimACPI function calls at the cost of a small increase in the code size of the 4291193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 4292193267SjkimLen Brown. 4293151937Sjkim 4294193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 4295193267Sjkimheaders to define a macro that will return the current function name at 4296193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 4297193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 4298193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 4299193267Sjkimpointer per function.) This mechanism is used because apparently there 4300193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 4301151937Sjkim 4302193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 4303193267Sjkimnamespace objects created/deleted by ACPI tables and control method 4304193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 4305193267Sjkimthe wraparound problem present in the previous implementation. The size of 4306193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 4307151937SjkimStarikovskiy). 4308151937Sjkim 4309193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 4310193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 4311193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 4312193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 4313193267Sjkimeliminate bitfields entirely because of a lack of portability. 4314151937Sjkim 4315193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 4316193267Sjkimis a frequently used function and this improvement increases the performance 4317193267Sjkimof the entire subsystem (Alexey Starikovskiy). 4318151937Sjkim 4319193267SjkimFixed several possible memory leaks and the inverse - premature object 4320193267Sjkimdeletion (Alexey Starikovskiy). 4321151937Sjkim 4322193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4323193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4324193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4325193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4326193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4327193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4328193267Sjkimthe compiler options used during generation. 4329151937Sjkim 4330151937Sjkim Previous Release: 4331151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4332151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4333151937Sjkim Current Release: 4334151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4335151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4336151937Sjkim 4337151937Sjkim---------------------------------------- 4338151937Sjkim24 June 2005. Summary of changes for version 20050624: 4339151937Sjkim 4340151937Sjkim1) ACPI CA Core Subsystem: 4341151937Sjkim 4342193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 4343193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 4344193267Sjkimand type this object in any manner desired, simplifying the OSL 4345193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 4346193267SjkimLinux, and should be defined in the OS-specific header file for other 4347193267Sjkimoperating systems as required. 4348151937Sjkim 4349193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 4350193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 4351193267Sjkimchange was made for performance reasons, since this is the purpose of the 4352193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 4353193267SjkimAcpiOsAllocate interface. 4354151937Sjkim 4355193267SjkimImplemented a new AML debugger command named Businfo. This command displays 4356193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 4357193267Sjkim_HID, _UID, and _CID are displayed for these devices. 4358151937Sjkim 4359193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 4360193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 4361193267Sjkimchange was required because the global initialization now calls OSL 4362193267Sjkiminterfaces. 4363151937Sjkim 4364193267SjkimEnhanced the Dump command to display the entire contents of Package objects 4365193267Sjkim(including all sub-objects and their values.) 4366151937Sjkim 4367193267SjkimRestructured the code base to split some files because of size and/or 4368193267Sjkimbecause the code logically belonged in a separate file. New files are listed 4369193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 4370193267Sjkimbeen updated. 4371151937Sjkim utilities/utcache.c /* Local cache interfaces */ 4372151937Sjkim utilities/utmutex.c /* Local mutex support */ 4373151937Sjkim utilities/utstate.c /* State object support */ 4374151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 4375151937Sjkim 4376193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4377193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4378193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4379193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4380193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4381193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4382193267Sjkimthe compiler options used during generation. 4383151937Sjkim 4384151937Sjkim Previous Release: 4385151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4386151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4387151937Sjkim Current Release: 4388151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4389151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4390151937Sjkim 4391151937Sjkim 4392151937Sjkim2) iASL Compiler/Disassembler: 4393151937Sjkim 4394193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 4395193267Sjkimobject within a Case() statement caused a compile time exception. The 4396193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 4397151937Sjkim 4398151937Sjkim---------------------------------------- 4399151937Sjkim17 June 2005. Summary of changes for version 20050617: 4400151937Sjkim 4401151937Sjkim1) ACPI CA Core Subsystem: 4402151937Sjkim 4403193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 4404193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 4405193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 4406193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 4407193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 4408193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 4409193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 4410151937Sjkim AcpiOsCreateCache 4411151937Sjkim AcpiOsDeleteCache 4412151937Sjkim AcpiOsPurgeCache 4413151937Sjkim AcpiOsAcquireObject 4414151937Sjkim AcpiOsReleaseObject 4415151937Sjkim 4416193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 4417193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 4418193267SjkimNote: the current execution state (interrupt handler or not) is no longer 4419193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 4420193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 4421151937SjkimStarikovskiy. 4422151937Sjkim 4423193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 4424193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 4425193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 4426193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 4427193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 4428193267Sjkimonly the RSDT. 4429151937Sjkim 4430193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 4431193267Sjkimstring where the resulting output string is of zero length. It now correctly 4432193267Sjkimreturns a valid, null terminated string object instead of a string object 4433193267Sjkimwith a null pointer. 4434151937Sjkim 4435193267SjkimFixed a problem with the control method argument handling to allow a store 4436193267Sjkimto an Arg object that already contains an object of type Device. The Device 4437193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 4438151937Sjkim 4439167802Sjkim 4440193267SjkimEnhanced the debugger Find command to emit object values in addition to the 4441193267Sjkimfound object pathnames. The output format is the same as the dump namespace 4442193267Sjkimcommand. 4443151937Sjkim 4444193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 4445193267Sjkimof any Named integer object in the namespace (Previously, only method locals 4446193267Sjkimand args could be set.) 4447151937Sjkim 4448193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4449193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4450193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4451193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4452193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4453193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4454193267Sjkimthe compiler options used during generation. 4455151937Sjkim 4456151937Sjkim Previous Release: 4457151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4458151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4459151937Sjkim Current Release: 4460151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4461151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4462151937Sjkim 4463151937Sjkim 4464151937Sjkim2) iASL Compiler/Disassembler: 4465151937Sjkim 4466193267SjkimFixed a regression in the disassembler where if/else/while constructs were 4467193267Sjkimoutput incorrectly. This problem was introduced in the previous release 4468193267Sjkim(20050526). This problem also affected the single-step disassembly in the 4469193267Sjkimdebugger. 4470151937Sjkim 4471193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 4472193267Sjkimrarely) produce compile errors. 4473151937Sjkim 4474193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 4475193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 4476193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 4477193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 4478193267Sjkimerrors. 4479151937Sjkim 4480151937Sjkim---------------------------------------- 4481151937Sjkim26 May 2005. Summary of changes for version 20050526: 4482151937Sjkim 4483151937Sjkim1) ACPI CA Core Subsystem: 4484151937Sjkim 4485193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 4486193267Sjkimthe module level (not within a control method.) These opcodes are executed 4487193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 4488193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 4489193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 4490193267SjkimThis eliminates the "Encountered executable code at module level" warning 4491193267Sjkimthat was previously generated upon detection of such code. 4492151937Sjkim 4493193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 4494193267Sjkiminadvertently be generated during the lookup of namespace objects in the 4495193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 4496193267Sjkimproblem could occur during the resolution of forward references to namespace 4497193267Sjkimobjects. 4498151937Sjkim 4499193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 4500193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 4501193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 4502193267Sjkimcase, improving mutex performance (and overall subsystem performance) 4503193267Sjkimconsiderably. 4504151937Sjkim 4505193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 4506193267Sjkimerror conditions and error handling control paths. These fixes were 4507193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 4508151937Sjkim 4509193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 4510193267Sjkimto prevent a fault in this error case. 4511151937Sjkim 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. 4519151937Sjkim 4520151937Sjkim Previous Release: 4521151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4522151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4523151937Sjkim Current Release: 4524151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4525151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4526151937Sjkim 4527151937Sjkim 4528151937Sjkim2) iASL Compiler/Disassembler: 4529151937Sjkim 4530193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 4531193267Sjkimthe module level (not within a control method.) These operators will be 4532193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 4533193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 4534193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 4535193267Sjkimcode. 4536151937Sjkim 4537193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 4538193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 4539193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 4540193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 4541151937Sjkim 4542193267SjkimAn error message is now generated for the Mutex and Method operators if the 4543193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 4544151937Sjkim 4545193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 4546193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 4547193267SjkimThe actual underlying implementation of method argument typechecking is 4548193267Sjkimstill under development, however. 4549151937Sjkim 4550151937Sjkim---------------------------------------- 4551151937Sjkim13 May 2005. Summary of changes for version 20050513: 4552151937Sjkim 4553151937Sjkim1) ACPI CA Core Subsystem: 4554151937Sjkim 4555193267SjkimImplemented support for PCI Express root bridges -- added support for device 4556193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 4557151937Sjkim 4558193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 4559193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 4560193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 4561193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 4562151937Sjkim 4563193267SjkimFixed a problem where string and buffer objects with "static" pointers 4564193267Sjkim(pointers to initialization data within an ACPI table) were not handled 4565193267Sjkimconsistently. The internal object copy operation now always copies the data 4566193267Sjkimto a newly allocated buffer, regardless of whether the source object is 4567193267Sjkimstatic or not. 4568151937Sjkim 4569193267SjkimFixed a problem with the FromBCD operator where an implicit result 4570193267Sjkimconversion was improperly performed while storing the result to the target 4571193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 4572193267Sjkimconversion should never be performed on the output. 4573151937Sjkim 4574193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 4575193267Sjkimnamed object did not always completely overwrite the existing object stored 4576193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 4577193267Sjkimbuffer. 4578151937Sjkim 4579193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 4580193267Sjkimstructs for consistency. 4581151937Sjkim 4582193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4583193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4584193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4585193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4586193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4587193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4588193267Sjkimthe compiler options used during generation. 4589151937Sjkim 4590151937Sjkim Previous Release: 4591151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4592151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4593151937Sjkim Current Release: (Same sizes) 4594151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4595151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4596151937Sjkim 4597151937Sjkim 4598151937Sjkim2) iASL Compiler/Disassembler: 4599151937Sjkim 4600193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 4601193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 4602193267Sjkimis truncated to 32 bits. 4603151937Sjkim 4604193267SjkimFixed a problem with large package objects: if the static length of the 4605193267Sjkimpackage is greater than 255, the "variable length package" opcode is 4606193267Sjkimemitted. Previously, this caused an error. This requires an update to the 4607193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 4608193267Sjkim255 elements are not allowed. 4609151937Sjkim 4610193267SjkimThe disassembler now correctly handles variable length packages and packages 4611193267Sjkimlarger than 255 elements. 4612151937Sjkim 4613151937Sjkim---------------------------------------- 4614151937Sjkim08 April 2005. Summary of changes for version 20050408: 4615151937Sjkim 4616151937Sjkim1) ACPI CA Core Subsystem: 4617151937Sjkim 4618193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 4619193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 4620193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 4621151937Sjkim 4622193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 4623193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 4624193267Sjkimlibraries. All references to the C library strupr function have been removed 4625193267Sjkimfrom the headers. 4626151937Sjkim 4627193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 4628193267Sjkimthe static attribute have been moved from the headers to the owning C file. 4629151937Sjkim 4630193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 4631193267Sjkimutility). This option allows the utility to extract individual ACPI tables 4632193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 4633193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 4634193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 4635193267Sjkimthe Linux/Unix environment (but should be soon). 4636193267Sjkim 4637193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 4638193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 4639193267SjkimAcpiDmp. 4640151937Sjkim 4641193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4642193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4643193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4644193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4645193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4646193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4647193267Sjkimthe compiler options used during generation. 4648151937Sjkim 4649151937Sjkim Previous Release: 4650151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4651151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4652151937Sjkim Current Release: 4653151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4654151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4655151937Sjkim 4656151937Sjkim 4657151937Sjkim2) iASL Compiler/Disassembler: 4658151937Sjkim 4659193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 4660193267SjkimACPI table header within the input file is not longer than the actual input 4661193267Sjkimfile size. This indicates some kind of file or table corruption. 4662151937Sjkim 4663151937Sjkim---------------------------------------- 4664151937Sjkim29 March 2005. Summary of changes for version 20050329: 4665151937Sjkim 4666151937Sjkim1) ACPI CA Core Subsystem: 4667151937Sjkim 4668193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 4669193267Sjkimlength zero (A CreateField with a length operand of zero.) 4670151937Sjkim 4671193267SjkimThe interpreter now issues a warning whenever executable code at the module 4672193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 4673193267Sjkimprevalence of this type of code. 4674151937Sjkim 4675193267SjkimImplemented support for references to named objects (other than control 4676193267Sjkimmethods) within package objects. 4677151937Sjkim 4678193267SjkimEnhanced package object output for the debug object. Package objects are now 4679193267Sjkimcompletely dumped, showing all elements. 4680151937Sjkim 4681193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 4682193267Sjkimnow be written to the debug object (for example, a device object can be 4683193267Sjkimwritten, and the type of the object will be displayed.) 4684151937Sjkim 4685193267SjkimThe "static" qualifier has been added to all local functions across both the 4686193267Sjkimcore subsystem and the iASL compiler. 4687151937Sjkim 4688193267SjkimThe number of "long" lines (> 80 chars) within the source has been 4689193267Sjkimsignificantly reduced, by about 1/3. 4690151937Sjkim 4691193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 4692193267Sjkimprototyped (even static functions) and the formatting is consistent. 4693151937Sjkim 4694151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 4695151937Sjkim 4696151937SjkimRemoved several obsolete functions that were no longer used. 4697151937Sjkim 4698193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4699193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4700193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4701193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4702193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4703193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4704193267Sjkimthe compiler options used during generation. 4705151937Sjkim 4706151937Sjkim Previous Release: 4707151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4708151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4709151937Sjkim Current Release: 4710151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4711151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4712151937Sjkim 4713151937Sjkim 4714167802Sjkim 4715151937Sjkim2) iASL Compiler/Disassembler: 4716151937Sjkim 4717193267SjkimFixed a problem with the resource descriptor generation/support. For the 4718193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 4719193267Sjkimboth must be not present - can't have one without the other. 4720151937Sjkim 4721193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 4722193267Sjkimoccurred during the compilation. 4723151937Sjkim 4724151937Sjkim 4725151937Sjkim---------------------------------------- 4726151937Sjkim09 March 2005. Summary of changes for version 20050309: 4727151937Sjkim 4728151937Sjkim1) ACPI CA Core Subsystem: 4729151937Sjkim 4730193267SjkimThe string-to-buffer implicit conversion code has been modified again after 4731193267Sjkima change to the ACPI specification. In order to match the behavior of the 4732193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 4733193267Sjkimthe source string is smaller than an existing target buffer. This change 4734193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 4735151937SjkimAE_AML_BUFFER_LIMIT issues. 4736151937Sjkim 4737193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 4738193267Sjkimthe general case. Rather than attempt to determine when a method is about to 4739193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 4740193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 4741193267Sjkimthere will always be a saved implicit return value. This feature is only 4742193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 4743193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 4744151937Sjkim 4745193267SjkimImplemented implicit conversion support for the predicate (operand) of the 4746193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 4747193267Sjkimconverted to Integers. 4748151937Sjkim 4749193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 4750193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 4751193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 4752193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 4753193267Sjkimwith the first character as the most significant digit, and ending with the 4754193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 4755193267Sjkimnon-hex character terminates the conversion and this is the code that was 4756193267Sjkimchanged. 4757151937Sjkim 4758193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 4759193267Sjkimon an Index of a Package which pointed to a null package element. The 4760193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 4761151937Sjkim 4762193267SjkimFixed a problem where the While operator used excessive memory by not 4763193267Sjkimproperly popping the result stack during execution. There was no memory leak 4764193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 4765151937Sjkim 4766193267SjkimFixed a problem where references to control methods within Package objects 4767193267Sjkimcaused the method to be invoked, instead of producing a reference object 4768193267Sjkimpointing to the method. 4769151937Sjkim 4770193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 4771193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 4772193267SjkimStarikovskiy.) 4773151937Sjkim 4774193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4775193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4776193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4777193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4778193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4779193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4780193267Sjkimthe compiler options used during generation. 4781151937Sjkim 4782151937Sjkim Previous Release: 4783151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4784151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4785151937Sjkim Current Release: 4786151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4787151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4788151937Sjkim 4789151937Sjkim 4790151937Sjkim2) iASL Compiler/Disassembler: 4791151937Sjkim 4792193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 4793193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 4794193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 4795193267Sjkimupdate has been written for this case. 4796151937Sjkim 4797193267SjkimFor tables other than the DSDT, namepath optimization is automatically 4798193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 4799193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 4800151937Sjkim 4801193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 4802193267Sjkiminadvertently omitted from the ACPI specification, and will require an 4803193267Sjkimupdate to the spec. 4804151937Sjkim 4805193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 4806193267Sjkimwas made because some vendors place non-ascii characters within comments. 4807193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 4808193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 4809151937Sjkim 4810193267SjkimFixed a problem with the CondRefOf operator where the compiler was 4811193267Sjkiminappropriately checking for the existence of the target. Since the point of 4812193267Sjkimthe operator is to check for the existence of the target at run-time, the 4813193267Sjkimcompiler no longer checks for the target existence. 4814151937Sjkim 4815193267SjkimFixed a problem where errors generated from the internal AML interpreter 4816193267Sjkimduring constant folding were not handled properly, causing a fault. 4817151937Sjkim 4818193267SjkimFixed a problem with overly aggressive range checking for the Stall 4819193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 4820193267Sjkimtype Integer. All other operand types cannot be statically checked. 4821151937Sjkim 4822193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 4823193267Sjkimand ObjectType operators were not treated properly. They are now treated as 4824193267Sjkimactual references, not method invocations. 4825151937Sjkim 4826193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 4827193267Sjkima number of releases ago. 4828151937Sjkim 4829193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 4830193267SjkimThe compiler now cleanly reports and recovers from errors in the field 4831193267Sjkimcomponent (FieldUnit) list. 4832151937Sjkim 4833193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 4834193267SjkimTRS and TTP were not always handled correctly. 4835151937Sjkim 4836151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 4837151937Sjkim 4838151937Sjkim---------------------------------------- 4839151937Sjkim28 February 2005. Summary of changes for version 20050228: 4840151937Sjkim 4841151937Sjkim1) ACPI CA Core Subsystem: 4842151937Sjkim 4843193267SjkimFixed a problem where the result of an Index() operator (an object 4844193267Sjkimreference) must increment the reference count on the target object for the 4845193267Sjkimlife of the object reference. 4846151937Sjkim 4847193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 4848193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 4849193267Sjkimresource descriptors. 4850151937Sjkim 4851193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 4852193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 4853193267Sjkimabove. 4854151937Sjkim 4855151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 4856151937Sjkim 4857193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 4858193267Sjkimstatus/enable registers. 4859151937Sjkim 4860193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 4861193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 4862151937Sjkim 4863151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 4864151937Sjkim 4865193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 4866193267Sjkimat runtime. 4867151937Sjkim 4868193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4869193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4870193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4871193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4872193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4873193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4874193267Sjkimthe compiler options used during generation. 4875151937Sjkim 4876151937Sjkim Previous Release: 4877151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4878151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4879151937Sjkim Current Release: 4880151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4881151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4882151937Sjkim 4883151937Sjkim 4884151937Sjkim2) iASL Compiler/Disassembler: 4885151937Sjkim 4886193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 4887193267Sjkimstrings less than two characters long. 4888151937Sjkim 4889193267SjkimFixed a problem with constant folding where the result of the Index() 4890193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 4891193267Sjkima type3 opcode and this will require an update to the ACPI specification. 4892151937Sjkim 4893193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 4894193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 4895193267Sjkimthe disassembly of the resource descriptor. 4896151937Sjkim 4897151937Sjkim 4898151937Sjkim ---------------------------------------- 4899151937Sjkim11 February 2005. Summary of changes for version 20050211: 4900151937Sjkim 4901151937Sjkim1) ACPI CA Core Subsystem: 4902151937Sjkim 4903193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 4904193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 4905193267Sjkimof just type integer. Package elements are implicitly converted to the type 4906193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 4907193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 4908193267Sjkimerrata change to the ACPI specification as this support was intended for 4909193267SjkimACPI 3.0, but was inadvertently omitted. 4910151937Sjkim 4911193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 4912193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 4913193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 4914193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 4915193267Sjkimspec.) The problem was introduced when code was added to truncate the 4916193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 4917151937Sjkim 4918193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 4919193267Sjkimwould get confused if two such operators were used as operands to an ASL 4920193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 4921193267Sjkimstack was not being popped after the execution of these operators, resulting 4922193267Sjkimin an AE_NO_RETURN_VALUE exception. 4923151937Sjkim 4924193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 4925193267Sjkimreference object returned from Index was inadvertently resolved to an actual 4926193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 4927193267SjkimStore() was modified to restrict the object types that can be used as the 4928151937Sjkimsource operand (to match the ACPI specification.) 4929151937Sjkim 4930193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 4931151937Sjkim 4932193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 4933151937Sjkim 4934193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 4935151937Sjkim 4936193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4937193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4938193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4939193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4940193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4941193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4942193267Sjkimthe compiler options used during generation. 4943151937Sjkim 4944151937Sjkim Previous Release: 4945151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4946151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4947151937Sjkim Current Release: 4948151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4949151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4950151937Sjkim 4951151937Sjkim 4952151937Sjkim2) iASL Compiler/Disassembler: 4953151937Sjkim 4954193267SjkimFixed a code generation problem in the constant folding optimization code 4955193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 4956193267Sjkimobject (i.e., a reduced type 5 opcode.) 4957151937Sjkim 4958193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 4959193267Sjkimincorrect return type in the internal opcode information table. 4960151937Sjkim 4961151937Sjkim---------------------------------------- 4962151937Sjkim25 January 2005. Summary of changes for version 20050125: 4963151937Sjkim 4964151937Sjkim1) ACPI CA Core Subsystem: 4965151937Sjkim 4966193267SjkimFixed a recently introduced problem with the Global Lock where the 4967193267Sjkimunderlying semaphore was not created. This problem was introduced in 4968193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 4969193267SjkimAcquire() operation on _GL. 4970151937Sjkim 4971193267SjkimThe local object cache is now optional, and is disabled by default. Both 4972193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 4973193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 4974193267Sjkimto enable the local cache. 4975151937Sjkim 4976193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 4977193267Sjkimoptional "implicit return" support where an error was returned if no return 4978193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 4979193267Sjkimin this case and the implicitly returned object is deleted. 4980193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 4981193267Sjkimmethods such as _STA and _INI where the return type is known up front. 4982151937Sjkim 4983193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 4984193267Sjkiman error if an attempt is made to convert a null string, a string of only 4985193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 4986193267Sjkimand explicit conversion via the ToInteger() operator. 4987151937Sjkim 4988193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 4989193267Sjkimnot needed for normal operation and should increase the performance of the 4990193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 4991193267Sjkimagain. 4992151937Sjkim 4993193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 4994193267Sjkimthe first time. 4995151937Sjkim 4996193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4997193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4998193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4999193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5000193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5001193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5002193267Sjkimthe compiler options used during generation. 5003151937Sjkim 5004151937Sjkim Previous Release: 5005151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5006151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5007151937Sjkim Current Release: 5008151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 5009151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 5010151937Sjkim 5011151937Sjkim2) iASL Compiler/Disassembler: 5012151937Sjkim 5013193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 5014193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 5015193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 5016193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 5017193267Sjkimwarning. 5018151937Sjkim 5019193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 5020193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 5021193267Sjkimbuffers and strings. 5022151937Sjkim 5023193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 5024193267Sjkimthe switch value as the first operand, not the second. The case value is now 5025193267Sjkimthe second operand, and this allows the case value to be implicitly 5026193267Sjkimconverted to the type of the switch value, not the other way around. 5027151937Sjkim 5028193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 5029193267Sjkimthe control method, not at the global level. This means that there are now 5030193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 5031193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 5032151937Sjkim 5033151937Sjkim---------------------------------------- 5034151937Sjkim14 January 2005. Summary of changes for version 20050114: 5035151937Sjkim 5036193267SjkimAdded 2005 copyright to all module headers. This affects every module in 5037193267Sjkimthe core subsystem, iASL compiler, and the utilities. 5038151937Sjkim 5039151937Sjkim1) ACPI CA Core Subsystem: 5040151937Sjkim 5041193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 5042193267Sjkimnull terminator was not included in the buffer after conversion, but there 5043193267Sjkimis existing ASL that assumes the string null terminator is included. This is 5044193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 5045193267Sjkimintroduced in the previous version when the code was updated to correctly 5046193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 5047193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 5048193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 5049193267Sjkimoperator. 5050151937Sjkim 5051193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 5052193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 5053193267Sjkimas initialized. 5054151937Sjkim 5055167802Sjkim 5056193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 5057193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 5058193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 5059151937Sjkim 5060193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 5061193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 5062193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 5063193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 5064193267Sjkimnecessary, the original behavior can be restored by enabling the 5065151937SjkimEnableInterpreterSlack flag. 5066151937Sjkim 5067193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 5068193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 5069193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 5070193267Sjkimfor example. 5071151937Sjkim 5072193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 5073193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 5074193267Sjkimthe supported ACPI version (This is the function of the _REV method). 5075151937Sjkim 5076193267SjkimUpdated the _REV predefined method to return the currently supported version 5077193267Sjkimof ACPI, now 3. 5078151937Sjkim 5079151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 5080151937Sjkim 5081193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5082193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5083193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5084193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5085193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5086193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5087193267Sjkimthe compiler options used during generation. 5088151937Sjkim 5089151937Sjkim Previous Release: 5090151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5091151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5092151937Sjkim Current Release: 5093151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5094151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5095151937Sjkim 5096151937Sjkim---------------------------------------- 5097151937Sjkim10 December 2004. Summary of changes for version 20041210: 5098151937Sjkim 5099193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 5100193267SjkimACPI CA core subsystem. 5101151937Sjkim 5102151937Sjkim1) ACPI CA Core Subsystem: 5103151937Sjkim 5104193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 5105193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 5106193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 5107151937Sjkim 5108193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 5109193267Sjkimstring to be produced. 5110151937Sjkim 5111193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 5112193267Sjkimroutine where the length of the resulting buffer was not truncated to the 5113193267Sjkimnew size (if the target buffer already existed). 5114151937Sjkim 5115193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5116193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5117193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5118193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5119193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5120193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5121193267Sjkimthe compiler options used during generation. 5122151937Sjkim 5123151937Sjkim Previous Release: 5124151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5125151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5126151937Sjkim Current Release: 5127151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5128151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5129151937Sjkim 5130151937Sjkim 5131151937Sjkim2) iASL Compiler/Disassembler: 5132151937Sjkim 5133193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 5134193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 5135193267SjkimIncludes support in the disassembler. 5136151937Sjkim 5137193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 5138193267SjkimAccessSize. 5139151937Sjkim 5140193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 5141193267Sjkimreferencing bit 0 instead of bit 1. 5142151937Sjkim 5143193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 5144151937Sjkim 5145193267SjkimFixed a problem with the predefined resource descriptor names where 5146193267Sjkimincorrect AML code was generated if the offset within the resource buffer 5147193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 5148193267Sjkimbut did not update the surrounding package lengths. 5149151937Sjkim 5150193267SjkimChanges to the Dma macro: All channels within the channel list must be in 5151193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 5152193267Sjkimoptional (default is BusMaster). 5153151937Sjkim 5154193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 5155151937Sjkim 5156193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 5157151937Sjkim 5158151937Sjkim---------------------------------------- 5159151937Sjkim03 December 2004. Summary of changes for version 20041203: 5160151937Sjkim 5161151937Sjkim1) ACPI CA Core Subsystem: 5162151937Sjkim 5163193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 5164193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 5165193267Sjkimconditions. 5166151937Sjkim 5167193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 5168193267Sjkimoperators where the input operand could be inadvertently deleted if no 5169193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 5170193267Sjkimobject.) 5171151937Sjkim 5172193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 5173193267Sjkimexception code was returned if the resulting string would be > 200 chars. 5174193267SjkimAE_STRING_LIMIT is now returned. 5175151937Sjkim 5176193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 5177193267Sjkimreturned, even if the operation failed. 5178151937Sjkim 5179193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 5180193267Sjkimsemaphores to be allocated. 5181151937Sjkim 5182193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5183193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5184193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5185193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5186193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5187193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5188193267Sjkimthe compiler options used during generation. 5189151937Sjkim 5190151937Sjkim Previous Release: 5191151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5192151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5193151937Sjkim Current Release: 5194151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5195151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5196151937Sjkim 5197151937Sjkim 5198151937Sjkim2) iASL Compiler/Disassembler: 5199151937Sjkim 5200193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 5201193267Sjkimrecently introduced in 20041119. 5202151937Sjkim 5203193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 5204193267Sjkimbyte was inadvertently set to zero. 5205151937Sjkim 5206151937Sjkim---------------------------------------- 5207138287Smarks19 November 2004. Summary of changes for version 20041119: 5208138287Smarks 5209138287Smarks1) ACPI CA Core Subsystem: 5210138287Smarks 5211193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 5212193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 5213193267Sjkimbuffers and strings to integers. 5214138287Smarks 5215193267SjkimImplemented support to store a value to an Index() on a String object. This 5216193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 5217138287Smarks 5218193267SjkimImplemented new behavior for storing objects to individual package elements 5219193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 5220193267Sjkimconversion rules if an object was already present at the index. The new 5221193267Sjkimbehavior is to simply delete any existing object and directly store the new 5222193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 5223193267SjkimACPI implementations behave in this manner. (This is the root of the 5224193267SjkimAE_BAD_HEX_CONSTANT issue.) 5225138287Smarks 5226193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 5227193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 5228193267SjkimRSDP signature is found with a valid checksum. 5229138287Smarks 5230193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5231193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5232193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5233193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5234193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5235193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5236193267Sjkimthe compiler options used during generation. 5237138287Smarks 5238151937Sjkim Previous Release: 5239151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5240151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5241151937Sjkim Current Release: 5242151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5243151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5244138287Smarks 5245138287Smarks 5246138287Smarks2) iASL Compiler/Disassembler: 5247138287Smarks 5248138287SmarksFixed a missing semicolon in the aslcompiler.y file. 5249138287Smarks 5250138287Smarks---------------------------------------- 5251138287Smarks05 November 2004. Summary of changes for version 20041105: 5252138287Smarks 5253138287Smarks1) ACPI CA Core Subsystem: 5254138287Smarks 5255193267SjkimImplemented support for FADT revision 2. This was an interim table (between 5256193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 5257138287Smarks 5258193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 5259193267Sjkimvariables in a control method. The variables are initialized to an Integer 5260193267Sjkimobject with a value of zero. This support is enabled by setting the 5261193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 5262138287Smarks 5263193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 5264193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 5265193267Sjkimdepending on the parent table revision). 5266138287Smarks 5267193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 5268193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 5269193267Sjkimreturn values for some objects. 5270138287Smarks 5271138287SmarksFixed some possible memory leaks during exceptional conditions. 5272138287Smarks 5273193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5274193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5275193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5276193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5277193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5278193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5279193267Sjkimthe compiler options used during generation. 5280138287Smarks 5281138287Smarks Previous Release: 5282138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5283138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5284138287Smarks Current Release: 5285138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5286138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5287138287Smarks 5288138287Smarks 5289138287Smarks2) iASL Compiler/Disassembler: 5290138287Smarks 5291138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 5292138287Smarks 5293193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 5294193267Sjkimsupport for semicolons. 5295138287Smarks 5296138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 5297138287Smarks 5298193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 5299193267Sjkimemitted properly if the target of the scope was in another table. 5300138287Smarks 5301138287Smarks---------------------------------------- 5302138287Smarks15 October 2004. Summary of changes for version 20041015: 5303138287Smarks 5304193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 5305193267Sjkimevaluation to test/verify the following areas. Other suggestions are 5306193267Sjkimwelcome. This will result in an increase in the frequency of releases and 5307193267Sjkimthe number of bug fixes in the next few months. 5308138287Smarks - Functional tests for all ASL/AML operators 5309138287Smarks - All implicit/explicit type conversions 5310138287Smarks - Bit fields and operation regions 5311138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 5312138287Smarks - Exceptional conditions, both compiler and interpreter 5313138287Smarks - Dynamic object deletion and memory leaks 5314138287Smarks - ACPI 3.0 support when implemented 5315138287Smarks - External interfaces to the ACPI subsystem 5316138287Smarks 5317138287Smarks 5318138287Smarks1) ACPI CA Core Subsystem: 5319138287Smarks 5320193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 5321193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 5322193267Sjkimfield within the non-aligned ACPI generic address structure. 5323138287Smarks 5324193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 5325193267Sjkimoperand resolution could result in the inadvertent modification of the 5326193267Sjkimoriginal integer when the integer is passed into another method as an 5327193267Sjkimargument and the arg is then incremented/decremented. 5328138287Smarks 5329193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 5330193267SjkimBCD number were truncated during conversion. 5331138287Smarks 5332193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 5333193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 5334193267Sjkimobject. 5335138287Smarks 5336193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 5337193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 5338193267Sjkimobjects. 5339138287Smarks 5340193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 5341193267Sjkimspecification) during the Concatenate operator with two string operands. 5342138287Smarks 5343193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5344193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5345193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5346193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5347193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5348193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5349193267Sjkimthe compiler options used during generation. 5350138287Smarks 5351138287Smarks Previous Release: 5352138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5353138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5354138287Smarks Current Release: 5355138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5356138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5357138287Smarks 5358138287Smarks 5359167802Sjkim 5360138287Smarks2) iASL Compiler/Disassembler: 5361138287Smarks 5362193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 5363193267Sjkim(returns 0 as per the ACPI specification). 5364138287Smarks 5365193267SjkimFixed a problem where the compiler would fault if there was a syntax error 5366193267Sjkimin the FieldName of all of the various CreateXXXField operators. 5367138287Smarks 5368193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 5369193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 5370193267SjkimU is an uppercase letter and N is a hex digit. 5371138287Smarks 5372138287Smarks 5373138287Smarks---------------------------------------- 5374138287Smarks06 October 2004. Summary of changes for version 20041006: 5375138287Smarks 5376138287Smarks1) ACPI CA Core Subsystem: 5377138287Smarks 5378193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 5379193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 5380138287Smarks 5381193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 5382193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 5383193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 5384193267Sjkimout of the clock handling business, since the host OS (usually) performs 5385193267Sjkimthis function. 5386138287Smarks 5387193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 5388193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 5389193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 5390193267Sjkimare now used to extract the address to a local variable before use. 5391138287Smarks 5392193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 5393193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 5394193267Sjkim(prefixed with "0x"). 5395138287Smarks 5396193267SjkimFixed a problem where the string length in the string object created as a 5397193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 5398193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 5399193267Sjkimand ToHexString operators. 5400138287Smarks 5401193267SjkimFixed two problems in the ToString operator. If the length parameter was 5402193267Sjkimzero, an incorrect string object was created and the value of the input 5403193267Sjkimlength parameter was inadvertently changed from zero to Ones. 5404138287Smarks 5405193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 5406193267Sjkimresource macro was ignored. 5407138287Smarks 5408193267SjkimSimplified the interfaces to the internal division functions, reducing code 5409193267Sjkimsize and complexity. 5410138287Smarks 5411193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5412193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5413193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5414193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5415193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5416193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5417193267Sjkimthe compiler options used during generation. 5418138287Smarks 5419138287Smarks Previous Release: 5420138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5421138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5422138287Smarks Current Release: 5423138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5424138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5425138287Smarks 5426138287Smarks 5427138287Smarks2) iASL Compiler/Disassembler: 5428138287Smarks 5429138287SmarksImplemented support for the ACPI 3.0 Timer operator. 5430138287Smarks 5431193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 5432193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 5433193267Sjkimstatement to If...Else pairs. 5434138287Smarks 5435193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 5436193267Sjkimoperands). 5437138287Smarks 5438193267SjkimFixed a problem with code generation for the ElseIf operator where the 5439193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 5440193267Sjkimloss of some code. 5441138287Smarks 5442138287Smarks---------------------------------------- 5443138287Smarks22 September 2004. Summary of changes for version 20040922: 5444138287Smarks 5445138287Smarks1) ACPI CA Core Subsystem: 5446138287Smarks 5447193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 5448193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 5449193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 5450193267Sjkimthis operator also. 5451138287Smarks 5452193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 5453193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 5454193267Sjkimbuffer already exists. 5455138287Smarks 5456193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 5457193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 5458193267Sjkimrelated code considerably. This will require changes/updates to all OS 5459193267Sjkiminterface layers (OSLs.) 5460138287Smarks 5461193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 5462193267Sjkima system exception handler to be installed. This handler is invoked upon any 5463193267Sjkimrun-time exception that occurs during control method execution. 5464138287Smarks 5465193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 5466138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 5467138287Smarks 5468193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5469193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5470193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5471193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5472193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5473193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5474193267Sjkimthe compiler options used during generation. 5475138287Smarks 5476138287Smarks Previous Release: 5477138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5478138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5479138287Smarks Current Release: 5480138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5481138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5482138287Smarks 5483138287Smarks 5484138287Smarks2) iASL Compiler/Disassembler: 5485138287Smarks 5486193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 5487193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 5488193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 5489138287Smarks 5490193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 5491193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 5492193267Sjkimfile. 5493138287Smarks 5494193267SjkimImplemented the "-r" option to override the Revision in the table header. 5495193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 5496193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 5497193267Sjkim32-bit or 64-bit integers. 5498138287Smarks 5499138287Smarks 5500138287Smarks---------------------------------------- 5501138287Smarks27 August 2004. Summary of changes for version 20040827: 5502138287Smarks 5503138287Smarks1) ACPI CA Core Subsystem: 5504138287Smarks 5505193267Sjkim- Implemented support for implicit object conversion in the non-numeric 5506193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 5507193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 5508193267Sjkimthe second operand is implicitly converted on the fly to match the type of 5509193267Sjkimthe first operand. For example: 5510138287Smarks 5511138287Smarks LEqual (Source1, Source2) 5512138287Smarks 5513193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 5514193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 5515193267Sjkimimplicitly converted if necessary to match the type of Source1. 5516138287Smarks 5517193267Sjkim- Updated and corrected the behavior of the string conversion support. The 5518193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 5519193267Sjkimspecification) are as follows: 5520138287Smarks 5521193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 5522193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 5523193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 5524193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 5525193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 5526193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 5527193267Sjkim(0-FF) separated by spaces. 5528138287Smarks 5529138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 5530138287Smarks 5531193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 5532193267Sjkimone byte too short in the case of a node in the root scope. This could 5533193267Sjkimcause a fault during debug output. 5534138287Smarks 5535193267Sjkim- Code and Data Size: Current and previous core subsystem library sizes are 5536193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5537193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5538193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5539193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5540193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5541193267Sjkimthe compiler options used during generation. 5542138287Smarks 5543138287Smarks Previous Release: 5544138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5545138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5546138287Smarks Current Release: 5547138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5548138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5549138287Smarks 5550138287Smarks 5551138287Smarks2) iASL Compiler/Disassembler: 5552138287Smarks 5553138287Smarks- Fixed a Linux generation error. 5554138287Smarks 5555138287Smarks 5556138287Smarks---------------------------------------- 5557138287Smarks16 August 2004. Summary of changes for version 20040816: 5558138287Smarks 5559138287Smarks1) ACPI CA Core Subsystem: 5560138287Smarks 5561193267SjkimDesigned and implemented support within the AML interpreter for the so- 5562193267Sjkimcalled "implicit return". This support returns the result of the last ASL 5563193267Sjkimoperation within a control method, in the absence of an explicit Return() 5564193267Sjkimoperator. A few machines depend on this behavior, even though it is not 5565193267Sjkimexplicitly supported by the ASL language. It is optional support that can 5566193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 5567138287Smarks 5568193267SjkimRemoved support for the PCI_Config address space from the internal low level 5569193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 5570193267Sjkimsupport was not used internally, and would not work correctly anyway because 5571193267Sjkimthe PCI bus number and segment number were not supported. There are 5572193267Sjkimseparate interfaces for PCI configuration space access because of the unique 5573138287Smarksinterface. 5574138287Smarks 5575193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5576193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5577193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5578193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5579193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5580193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5581193267Sjkimthe compiler options used during generation. 5582138287Smarks 5583138287Smarks Previous Release: 5584138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5585138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5586138287Smarks Current Release: 5587138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5588138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5589138287Smarks 5590138287Smarks 5591138287Smarks2) iASL Compiler/Disassembler: 5592138287Smarks 5593193267SjkimFixed a problem where constants in ASL expressions at the root level (not 5594193267Sjkimwithin a control method) could be inadvertently truncated during code 5595193267Sjkimgeneration. This problem was introduced in the 20040715 release. 5596138287Smarks 5597138287Smarks 5598138287Smarks---------------------------------------- 5599138287Smarks15 July 2004. Summary of changes for version 20040715: 5600138287Smarks 5601138287Smarks1) ACPI CA Core Subsystem: 5602138287Smarks 5603193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 5604193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 5605193267Sjkimincrease flexibility of the interfaces. 5606138287Smarks 5607193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 5608193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 5609193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 5610193267Sjkimto C library "strcmp". 5611138287Smarks 5612193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 5613193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 5614193267Sjkimreduced from 168 bytes to 32 bytes. 5615138287Smarks 5616193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 5617193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 5618193267Sjkimconstructs. Default setting is FALSE. 5619138287Smarks 5620193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 5621193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 5622193267Sjkimregion definition if the field is within the region length rounded up to the 5623193267Sjkimnext access width boundary (a common coding error.) 5624138287Smarks 5625193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 5626193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 5627193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 5628138287Smarks 5629193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 5630193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 5631193267Sjkimcomplaining. 5632138287Smarks 5633193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5634193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5635193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5636193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5637193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5638193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5639193267Sjkimthe compiler options used during generation. 5640138287Smarks 5641138287Smarks Previous Release: 5642138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5643138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5644138287Smarks Current Release: 5645138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5646138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5647138287Smarks 5648138287Smarks 5649138287Smarks2) iASL Compiler/Disassembler: 5650138287Smarks 5651193267SjkimImplemented full support for Package objects within the Case() operator. 5652193267SjkimNote: The Break() operator is currently not supported within Case blocks 5653193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 5654193267Sjkim1.0 interpreters. 5655138287Smarks 5656167802Sjkim 5657193267SjkimFixed a problem where complex terms were not supported properly within the 5658193267SjkimSwitch() operator. 5659138287Smarks 5660193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 5661193267Sjkimform "_T_x". (Used in Switch/Case operators.) 5662138287Smarks 5663193267SjkimEliminated optimization messages for "_T_x" objects and small constants 5664193267Sjkimwithin the DefinitionBlock operator. 5665138287Smarks 5666138287Smarks 5667138287Smarks---------------------------------------- 5668138287Smarks15 June 2004. Summary of changes for version 20040615: 5669138287Smarks 5670138287Smarks1) ACPI CA Core Subsystem: 5671138287Smarks 5672193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5673193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5674193267SjkimLLessEqual. 5675138287Smarks 5676193267SjkimAll directory names in the entire source package are lower case, as they 5677193267Sjkimwere in earlier releases. 5678138287Smarks 5679193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 5680193267Sjkima single control method. 5681138287Smarks 5682193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5683193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5684193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5685193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5686193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5687193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5688193267Sjkimthe compiler options used during generation. 5689138287Smarks 5690138287Smarks Previous Release: 5691138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5692138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5693167802Sjkim 5694138287Smarks Current Release: 5695138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5696138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5697138287Smarks 5698138287Smarks 5699138287Smarks2) iASL Compiler/Disassembler: 5700138287Smarks 5701193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5702193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5703193267SjkimLLessEqual. 5704138287Smarks 5705193267SjkimAll directory names in the entire source package are lower case, as they 5706193267Sjkimwere in earlier releases. 5707138287Smarks 5708193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 5709193267Sjkimnot found. 5710138287Smarks 5711193267SjkimFixed an issue with the Windows version of the compiler where later versions 5712193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 5713193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 5714193267Sjkimd<nofilename> options. The compiler now looks for both strings as 5715193267Sjkimnecessary. 5716138287Smarks 5717193267SjkimFixed a problem with compiler namepath optimization where a namepath within 5718193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 5719193267Sjkimthe current scope path. 5720138287Smarks 5721138287Smarks---------------------------------------- 5722131440Smarks27 May 2004. Summary of changes for version 20040527: 5723131440Smarks 5724131440Smarks1) ACPI CA Core Subsystem: 5725131440Smarks 5726193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 5727193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 5728193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 5729193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 5730193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 5731131440Smarksany machines that place the RSDP in the EBDA, however. 5732131440Smarks 5733193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 5734193267Sjkimarguments. Obsolete code that was causing the problem was removed. 5735131440Smarks 5736193267SjkimFound and fixed a problem in the Field Support Code where data could be 5737193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 5738193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 5739193267Sjkimcalculation code into a common procedure. 5740131440Smarks 5741131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 5742131440Smarks 5743167802Sjkim 5744193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5745193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5746193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5747193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5748193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5749193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5750193267Sjkimthe compiler options used during generation. 5751131440Smarks 5752131440Smarks Previous Release: 5753131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5754131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5755131440Smarks Current Release: 5756131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5757131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5758131440Smarks 5759131440Smarks 5760131440Smarks2) iASL Compiler/Disassembler: 5761131440Smarks 5762193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 5763193267Sjkim64-bit constant. 5764131440Smarks 5765131440Smarks---------------------------------------- 5766129684Snjl14 May 2004. Summary of changes for version 20040514: 5767129684Snjl 5768129684Snjl1) ACPI CA Core Subsystem: 5769129684Snjl 5770193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 5771193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 5772129684Snjl 5773129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 5774129684Snjl 5775193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 5776193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 5777193267Sjkimthe new AcpiEv* calls as appropriate. 5778129684Snjl 5779193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 5780193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 5781193267Sjkimchanged by modifying the acconfig.h file. 5782129684Snjl 5783193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 5784193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 5785129684Snjl 5786193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 5787193267Sjkimspecification, but there is apparently ASL code in the field that has these 5788193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 5789129684Snjl 5790193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 5791129684Snjl 5792193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 5793129684Snjl 5794193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5795193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5796193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5797193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5798193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5799193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5800193267Sjkimthe compiler options used during generation. 5801129684Snjl 5802129684Snjl Previous Release: 5803129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5804129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5805129684Snjl Current Release: 5806129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5807129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5808129684Snjl 5809129684Snjl---------------------------------------- 5810129684Snjl27 April 2004. Summary of changes for version 20040427: 5811129684Snjl 5812129684Snjl1) ACPI CA Core Subsystem: 5813129684Snjl 5814193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 5815193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 5816193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 5817193267Sjkimdevices such as a control-method power button, control-method sleep button, 5818193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 5819193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 5820193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 5821193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 5822193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 5823193267Sjkimactually be hardware enabled. 5824129684Snjl 5825193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 5826193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 5827193267Sjkimespecially useful for the drivers for the button devices mentioned above. 5828129684Snjl 5829193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 5830193267Sjkimdefault operation region handlers are installed before GPEs are initialized 5831193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 5832193267Sjkimmethods attempt to access system memory or I/O space. 5833129684Snjl 5834193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 5835193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 5836193267Sjkimthus no longer depend on the hardware to maintain these bits. 5837129684Snjl 5838193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 5839193267Sjkimfor state S5. 5840129684Snjl 5841193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 5842193267Sjkimcurrent status. 5843129684Snjl 5844193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 5845193267Sjkimx = 0,1,2,3,4. 5846129684Snjl 5847193267SjkimFixed a problem where the physical address was incorrectly calculated when 5848193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 5849193267Sjkimloading from a Field object.) Also added check for minimum table length for 5850193267Sjkimthis case. 5851129684Snjl 5852193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 5853193267Sjkimmutex release. 5854129684Snjl 5855193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 5856129684Snjlconsistency with the other fields returned. 5857129684Snjl 5858193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 5859193267Sjkimstructure for each GPE in the system, so the size of this structure is 5860193267Sjkimimportant. 5861129684Snjl 5862193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 5863193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 5864193267Sjkimcopying the various method parameters over and over again. 5865129684Snjl 5866193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 5867193267Sjkimonly if dispatching an operation region request to a user-installed handler. 5868193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 5869193267Sjkimsystem memory or I/O handlers) 5870129684Snjl 5871129684Snjl 5872193267SjkimNotes for updating drivers for the new GPE support. The following changes 5873193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 5874193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 5875129684Snjl 5876193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 5877193267Sjkimexplicitly call AcpiEnableGpe. 5878193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 5879193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 5880193267Sjkimthe GPE if it is currently enabled. 5881129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 5882129684Snjl 5883129684SnjlSpecific drivers that must be changed: 5884129684Snjl1) EC driver: 5885193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 5886129684SnjlAeGpeHandler, NULL); 5887129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 5888129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 5889129684Snjl 5890129684Snjl2) Button Drivers (Power, Lid, Sleep): 5891129684SnjlRun _PRW method under parent device 5892129684SnjlIf _PRW exists: /* This is a control-method button */ 5893129684Snjl Extract GPE number and possibly GpeDevice 5894129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 5895129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 5896129684Snjl 5897193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 5898193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 5899193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 5900193267Sjkimto allow the user to pick the wake devices. 5901129684Snjl 5902129684Snjl 5903193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5904193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5905193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5906193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5907193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5908193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5909193267Sjkimthe compiler options used during generation. 5910129684Snjl 5911129684Snjl Previous Release: 5912129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5913129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5914129684Snjl Current Release: 5915167802Sjkim 5916129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5917129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5918129684Snjl 5919129684Snjl 5920129684Snjl 5921129684Snjl---------------------------------------- 5922128212Snjl02 April 2004. Summary of changes for version 20040402: 5923128212Snjl 5924128212Snjl1) ACPI CA Core Subsystem: 5925128212Snjl 5926193267SjkimFixed an interpreter problem where an indirect store through an ArgX 5927193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 5928193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 5929193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 5930193267Sjkimstored directly to the target". The new behavior is to disable implicit 5931193267Sjkimconversion during ALL stores to an ArgX. 5932128212Snjl 5933193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 5934193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 5935193267Sjkimfailure of any single _PRW. 5936128212Snjl 5937193267SjkimMoved the runtime configuration parameters from the global init procedure to 5938193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 5939193267Sjkimdefault values easily. 5940128212Snjl 5941193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5942193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5943193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5944193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5945193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5946193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5947193267Sjkimthe compiler options used during generation. 5948128212Snjl 5949128212Snjl Previous Release: 5950128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5951128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5952128212Snjl Current Release: 5953128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5954128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5955128212Snjl 5956128212Snjl 5957128212Snjl2) iASL Compiler/Disassembler: 5958128212Snjl 5959193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 5960193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 5961193267Sjkimplanned feature for future implementation. 5962128212Snjl 5963193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 5964193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 5965193267Sjkimincorrectly nested internal namespace to be constructed. 5966128212Snjl 5967193267SjkimAny warnings or errors that are emitted during disassembly are now commented 5968193267Sjkimout automatically so that the resulting file can be recompiled without any 5969193267Sjkimhand editing. 5970128212Snjl 5971128212Snjl---------------------------------------- 5972128212Snjl26 March 2004. Summary of changes for version 20040326: 5973128212Snjl 5974128212Snjl1) ACPI CA Core Subsystem: 5975128212Snjl 5976193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 5977193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 5978193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 5979193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 5980193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 5981193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 5982128212Snjlsystems. 5983128212Snjl 5984193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 5985193267SjkimALL GPEs at runtime) via a runtime flag. 5986128212Snjl 5987193267SjkimFixed a problem where aliased control methods could not access objects 5988193267Sjkimproperly. The proper scope within the namespace was not initialized 5989193267Sjkim(transferred to the target of the aliased method) before executing the 5990193267Sjkimtarget method. 5991128212Snjl 5992193267SjkimFixed a potential race condition on internal object deletion on the return 5993193267Sjkimobject in AcpiEvaluateObject. 5994128212Snjl 5995193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 5996193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 5997193267Sjkimwide, 0x0F instead of 0x03.) 5998128212Snjl 5999193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 6000193267Sjkimfault in some cases. 6001128212Snjl 6002128212SnjlUpdated Notify() values for debug statements in evmisc.c 6003128212Snjl 6004193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 6005128212Snjl 6006193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6007193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6008193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6009193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6010193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6011193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6012193267Sjkimthe compiler options used during generation. 6013128212Snjl 6014128212Snjl Previous Release: 6015167802Sjkim 6016128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6017128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6018128212Snjl Current Release: 6019128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 6020128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 6021128212Snjl 6022128212Snjl---------------------------------------- 6023127175Snjl11 March 2004. Summary of changes for version 20040311: 6024127175Snjl 6025127175Snjl1) ACPI CA Core Subsystem: 6026127175Snjl 6027193267SjkimFixed a problem where errors occurring during the parse phase of control 6028193267Sjkimmethod execution did not abort cleanly. For example, objects created and 6029193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 6030193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 6031127175Snjl 6032193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 6033193267Sjkimif the method attempts to create namespace objects. (The root of the 6034193267SjkimAE_ALREADY_EXISTS problem.) 6035127175Snjl 6036193267SjkimImplemented support for the predefined _OSI "internal" control method. 6037193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 6038193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 6039193267SjkimThis feature will allow "other" operating systems to execute the fully 6040193267Sjkimtested, "Windows" code path through the ASL code 6041127175Snjl 6042193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 6043193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 6044127175Snjl 6045193267SjkimFixed two functions that were inappropriately declaring large objects on the 6046193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 6047193267Sjkimmethod execution considerably. 6048127175Snjl 6049193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 6050193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 6051127175Snjl 6052193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 6053193267Sjkimdefined on the machine. 6054127175Snjl 6055193267SjkimImplemented two runtime options: One to force all control method execution 6056193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 6057193267Sjkimif it causes problems on a given machine. 6058127175Snjl 6059193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6060193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6061193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6062193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6063193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6064193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6065193267Sjkimthe compiler options used during generation. 6066127175Snjl 6067127175Snjl Previous Release: 6068127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6069127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6070127175Snjl Current Release: 6071127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6072127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6073127175Snjl 6074127175Snjl2) iASL Compiler/Disassembler: 6075127175Snjl 6076193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 6077193267Sjkimfault. 6078127175Snjl 6079127175Snjl---------------------------------------- 6080126372Snjl20 February 2004. Summary of changes for version 20040220: 6081126372Snjl 6082167802Sjkim 6083126372Snjl1) ACPI CA Core Subsystem: 6084126372Snjl 6085193267SjkimImplemented execution of _SxD methods for Device objects in the 6086126372SnjlGetObjectInfo interface. 6087126372Snjl 6088126372SnjlFixed calls to _SST method to pass the correct arguments. 6089126372Snjl 6090126372SnjlAdded a call to _SST on wake to restore to "working" state. 6091126372Snjl 6092193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 6093126372Snjl 6094193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 6095193267Sjkimstructures to the beginning of the file. 6096126372Snjl 6097126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 6098126372Snjl 6099193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 6100193267Sjkimfixed events upon wake.) 6101126372Snjl 6102126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 6103126372Snjl 6104126372SnjlIntegrated latest acnetbsd.h file. 6105126372Snjl 6106126372Snjl---------------------------------------- 6107126372Snjl11 February 2004. Summary of changes for version 20040211: 6108126372Snjl 6109167802Sjkim 6110126372Snjl1) ACPI CA Core Subsystem: 6111126372Snjl 6112193267SjkimCompleted investigation and implementation of the call-by-reference 6113193267Sjkimmechanism for control method arguments. 6114126372Snjl 6115193267SjkimFixed a problem where a store of an object into an indexed package could 6116193267Sjkimfail if the store occurs within a different method than the method that 6117193267Sjkimcreated the package. 6118126372Snjl 6119193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 6120126372Snjl 6121193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 6122193267Sjkimobscure objects (e.g., Reference objects.) 6123126372Snjl 6124193267SjkimImproved the output of the Debug object to display buffer, package, and 6125193267Sjkimindex objects. 6126126372Snjl 6127193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 6128193267Sjkimthe expected result. 6129126372Snjl 6130193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 6131126372SnjlACPI_AML_INTERNAL exception. 6132126372Snjl 6133126372SnjlIntegrated latest version of acfreebsd.h 6134126372Snjl 6135126372Snjl---------------------------------------- 6136126372Snjl16 January 2004. Summary of changes for version 20040116: 6137126372Snjl 6138193267SjkimThe purpose of this release is primarily to update the copyright years in 6139193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 6140193267Sjkimfunctional changes, however. 6141126372Snjl 6142126372Snjl1) ACPI CA Core Subsystem: 6143126372Snjl 6144193267SjkimImproved error messages when there is a problem finding one or more of the 6145193267Sjkimrequired base ACPI tables 6146126372Snjl 6147126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 6148126372Snjl 6149126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 6150126372Snjl 6151126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 6152126372Snjl 6153126372Snjl2) iASL compiler 6154126372Snjl 6155193267SjkimFixed a problem introduced in December that disabled the correct disassembly 6156193267Sjkimof Resource Templates 6157126372Snjl 6158126372Snjl 6159126372Snjl---------------------------------------- 6160126372Snjl03 December 2003. Summary of changes for version 20031203: 6161126372Snjl 6162126372Snjl1) ACPI CA Core Subsystem: 6163126372Snjl 6164126372SnjlChanged the initialization of Operation Regions during subsystem 6165126372Snjlinit to perform two entire walks of the ACPI namespace; The first 6166126372Snjlto initialize the regions themselves, the second to execute the 6167126372Snjl_REG methods. This fixed some interdependencies across _REG 6168126372Snjlmethods found on some machines. 6169126372Snjl 6170126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 6171126372Snjlthe object reference count, and not create a new copy of the 6172126372Snjlobject if the Local1 is uninitialized. 6173126372Snjl 6174126372SnjlImplemented support for the _SST reserved method during sleep 6175126372Snjltransitions. 6176126372Snjl 6177126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 6178126372Snjlwaking up, this is apparently required by some machines. 6179126372Snjl 6180193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 6181126372Snjl 6182126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 6183126372Snjlpointer arithmetic advanced a string pointer too far. 6184126372Snjl 6185126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 6186126372Snjlcould be returned if the requested table has not been loaded. 6187126372Snjl 6188193267SjkimWithin the support for IRQ resources, restructured the handling of 6189126372Snjlthe active and edge/level bits. 6190126372Snjl 6191126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 6192126372Snjlleaked under certain error conditions. 6193126372Snjl 6194126372SnjlImproved error messages for the cases where the ACPI mode could 6195126372Snjlnot be entered. 6196126372Snjl 6197126372SnjlCode and Data Size: Current and previous core subsystem library 6198126372Snjlsizes are shown below. These are the code and data sizes for the 6199126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6200126372Snjlthese values do not include any ACPI driver or OSPM code. The 6201126372Snjldebug version of the code includes the debug output trace 6202126372Snjlmechanism and has a much larger code and data size. Note that 6203193267Sjkimthese values will vary depending on the efficiency of the compiler 6204126372Snjland the compiler options used during generation. 6205126372Snjl 6206126372Snjl Previous Release (20031029): 6207126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6208126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6209126372Snjl Current Release: 6210126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6211126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6212126372Snjl 6213126372Snjl2) iASL Compiler/Disassembler: 6214126372Snjl 6215126372SnjlImplemented a fix for the iASL disassembler where a bad index was 6216126372Snjlgenerated. This was most noticeable on 64-bit platforms 6217126372Snjl 6218126372Snjl 6219126372Snjl---------------------------------------- 6220126372Snjl29 October 2003. Summary of changes for version 20031029: 6221126372Snjl 6222126372Snjl1) ACPI CA Core Subsystem: 6223126372Snjl 6224167802Sjkim 6225126372SnjlFixed a problem where a level-triggered GPE with an associated 6226126372Snjl_Lxx control method was incorrectly cleared twice. 6227126372Snjl 6228126372SnjlFixed a problem with the Field support code where an access can 6229126372Snjloccur beyond the end-of-region if the field is non-aligned but 6230126372Snjlextends to the very end of the parent region (resulted in an 6231126372SnjlAE_AML_REGION_LIMIT exception.) 6232126372Snjl 6233126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 6234193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 6235126372Snjlthe PM1 registers were not being initialized properly. 6236126372Snjl 6237126372SnjlImplemented support for executing _STA and _INI methods for 6238126372SnjlProcessor objects. Although this is currently not part of the 6239193267SjkimACPI specification, there is existing ASL code that depends on the 6240126372Snjlinit-time execution of these methods. 6241126372Snjl 6242126372SnjlImplemented and deployed a GetDescriptorName function to decode 6243126372Snjlthe various types of internal descriptors. Guards against null 6244126372Snjldescriptors during debug output also. 6245126372Snjl 6246126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 6247193267Sjkimcharacter namespace node name. This function simplifies the debug 6248193267Sjkimand error output, as well as guarding against null pointers during 6249126372Snjloutput. 6250126372Snjl 6251126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 6252126372Snjlsimplify the debug and error output of 64-bit integers. This 6253126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 6254126372Snjlintegers. 6255126372Snjl 6256126372SnjlUpdated the implementation of the Stall() operator to only call 6257126372SnjlAcpiOsStall(), and also return an error if the operand is larger 6258126372Snjlthan 255. This preserves the required behavior of not 6259126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 6260126372Snjlcalled for "long stalls". 6261126372Snjl 6262126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 6263126372Snjlinitialized are now treated as NOOPs. 6264126372Snjl 6265126372SnjlCleaned up a handful of warnings during 64-bit generation. 6266126372Snjl 6267126372SnjlFixed a reported error where and incorrect GPE number was passed 6268126372Snjlto the GPE dispatch handler. This value is only used for error 6269193267Sjkimoutput, however. Used this opportunity to clean up and streamline 6270126372Snjlthe GPE dispatch code. 6271126372Snjl 6272126372SnjlCode and Data Size: Current and previous core subsystem library 6273126372Snjlsizes are shown below. These are the code and data sizes for the 6274126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6275126372Snjlthese values do not include any ACPI driver or OSPM code. The 6276167802Sjkim 6277126372Snjldebug version of the code includes the debug output trace 6278126372Snjlmechanism and has a much larger code and data size. Note that 6279193267Sjkimthese values will vary depending on the efficiency of the compiler 6280126372Snjland the compiler options used during generation. 6281126372Snjl 6282126372Snjl Previous Release (20031002): 6283126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6284126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6285126372Snjl Current Release: 6286126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6287126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6288126372Snjl 6289126372Snjl 6290126372Snjl2) iASL Compiler/Disassembler: 6291126372Snjl 6292193267SjkimUpdated the iASL compiler to return an error if the operand to the 6293126372SnjlStall() operator is larger than 255. 6294126372Snjl 6295126372Snjl 6296126372Snjl---------------------------------------- 6297126372Snjl02 October 2003. Summary of changes for version 20031002: 6298126372Snjl 6299126372Snjl 6300126372Snjl1) ACPI CA Core Subsystem: 6301126372Snjl 6302126372SnjlFixed a problem with Index Fields where the index was not 6303126372Snjlincremented for fields that require multiple writes to the 6304126372Snjlindex/data registers (Fields that are wider than the data 6305126372Snjlregister.) 6306126372Snjl 6307126372SnjlFixed a problem with all Field objects where a write could go 6308126372Snjlbeyond the end-of-field if the field was larger than the access 6309193267Sjkimgranularity and therefore required multiple writes to complete the 6310126372Snjlrequest. An extra write beyond the end of the field could happen 6311126372Snjlinadvertently. 6312126372Snjl 6313126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 6314126372Snjlwould incorrectly be returned if the width of the Data Register 6315126372Snjlwas larger than the specified field access width. 6316126372Snjl 6317126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 6318126372Snjloperation. Implemented full support for the "DdbHandle" object 6319126372Snjlthroughout the ACPI CA subsystem. 6320126372Snjl 6321126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 6322126372SnjlCA header files. Even though these tables are not directly 6323126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 6324126372Snjldevice drivers. 6325126372Snjl 6326126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 6327126372Snjllist. This included checks for minimum descriptor length, and 6328126372Snjlsupport for trailing NULL strings within descriptors that have 6329126372Snjloptional string elements. 6330126372Snjl 6331126372SnjlCode and Data Size: Current and previous core subsystem library 6332126372Snjlsizes are shown below. These are the code and data sizes for the 6333126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6334126372Snjlthese values do not include any ACPI driver or OSPM code. The 6335126372Snjldebug version of the code includes the debug output trace 6336126372Snjlmechanism and has a much larger code and data size. Note that 6337193267Sjkimthese values will vary depending on the efficiency of the compiler 6338126372Snjland the compiler options used during generation. 6339126372Snjl 6340126372Snjl Previous Release (20030918): 6341126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6342126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6343126372Snjl Current Release: 6344126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6345126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6346126372Snjl 6347126372Snjl 6348126372Snjl2) iASL Compiler: 6349126372Snjl 6350126372SnjlImplemented detection of non-ASCII characters within the input 6351126372Snjlsource ASL file. This catches attempts to compile binary (AML) 6352126372Snjlfiles early in the compile, with an informative error message. 6353126372Snjl 6354126372SnjlFixed a problem where the disassembler would fault if the output 6355193267Sjkimfilename could not be generated or if the output file could not be 6356126372Snjlopened. 6357126372Snjl 6358126372Snjl---------------------------------------- 6359126372Snjl18 September 2003. Summary of changes for version 20030918: 6360126372Snjl 6361126372Snjl 6362126372Snjl1) ACPI CA Core Subsystem: 6363126372Snjl 6364126372SnjlFound and fixed a longstanding problem with the late execution of 6365126372Snjlthe various deferred AML opcodes (such as Operation Regions, 6366126372SnjlBuffer Fields, Buffers, and Packages). If the name string 6367126372Snjlspecified for the name of the new object placed the object in a 6368126372Snjlscope other than the current scope, the initialization/execution 6369126372Snjlof the opcode failed. The solution to this problem was to 6370126372Snjlimplement a mechanism where the late execution of such opcodes 6371126372Snjldoes not attempt to lookup/create the name a second time in an 6372126372Snjlincorrect scope. This fixes the "region size computed 6373126372Snjlincorrectly" problem. 6374126372Snjl 6375193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 6376126372SnjlGlobal Lock AE_BAD_PARAMETER error. 6377126372Snjl 6378126372SnjlFixed several 64-bit issues with prototypes, casting and data 6379126372Snjltypes. 6380126372Snjl 6381126372SnjlRemoved duplicate prototype from acdisasm.h 6382126372Snjl 6383126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 6384126372Snjl 6385126372SnjlCode and Data Size: Current and previous core subsystem library 6386126372Snjlsizes are shown below. These are the code and data sizes for the 6387126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6388126372Snjlthese values do not include any ACPI driver or OSPM code. The 6389126372Snjldebug version of the code includes the debug output trace 6390126372Snjlmechanism and has a much larger code and data size. Note that 6391193267Sjkimthese values will vary depending on the efficiency of the compiler 6392126372Snjland the compiler options used during generation. 6393126372Snjl 6394126372Snjl Previous Release: 6395167802Sjkim 6396126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6397126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6398126372Snjl Current Release: 6399126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6400126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6401126372Snjl 6402126372Snjl 6403126372Snjl2) Linux: 6404126372Snjl 6405126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 6406126372Snjlcorrect sleep time in seconds. 6407126372Snjl 6408126372Snjl---------------------------------------- 6409126372Snjl14 July 2003. Summary of changes for version 20030619: 6410126372Snjl 6411126372Snjl1) ACPI CA Core Subsystem: 6412126372Snjl 6413126372SnjlParse SSDTs in order discovered, as opposed to reverse order 6414126372Snjl(Hrvoje Habjanic) 6415126372Snjl 6416126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 6417126372SnjlKlausner, 6418126372Snjl Nate Lawson) 6419126372Snjl 6420126372Snjl 6421126372Snjl2) Linux: 6422126372Snjl 6423126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 6424126372Snjl 6425126372Snjlproc function return value cleanups (Andi Kleen) 6426126372Snjl 6427126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 6428126372Snjl 6429126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 6430126372Snjl 6431126372Snjl 6432126372Snjl---------------------------------------- 6433117521Snjl19 June 2003. Summary of changes for version 20030619: 6434117521Snjl 6435117521Snjl1) ACPI CA Core Subsystem: 6436117521Snjl 6437193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 6438117521Snjl 6439117521SnjlDo not acquire a semaphore in the S5 shutdown path. 6440117521Snjl 6441117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 6442117521Snjl 6443117521SnjlFix sleep/stall code reversal. (Andi Kleen) 6444117521Snjl 6445117521SnjlRevert a change having to do with control method calling 6446117521Snjlsemantics. 6447117521Snjl 6448117521Snjl2) Linux: 6449117521Snjl 6450117521Snjlacpiphp update (Takayoshi Kochi) 6451117521Snjl 6452117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 6453117521Snjl 6454117521SnjlMention acpismp=force in config help 6455117521Snjl 6456117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 6457167802Sjkim 6458193267Sjkimcompatibility and also cleans up the code to a significant degree. 6459117521Snjl 6460117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 6461117521Snjl 6462117521Snjl---------------------------------------- 6463117521Snjl22 May 2003. Summary of changes for version 20030522: 6464117521Snjl 6465117521Snjl1) ACPI CA Core Subsystem: 6466117521Snjl 6467117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 6468117521Snjloccurred occasionally during _BST evaluation. This turned out to 6469117521Snjlbe an Owner ID allocation issue where a called method did not get 6470193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 6471193267SjkimID UINT16 would wraparound so that the ID would be the same as the 6472126372Snjlcaller's and the called method would delete the caller's 6473117521Snjlnamespace. 6474117521Snjl 6475117521SnjlImplemented extended error reporting for control methods that are 6476117521Snjlaborted due to a run-time exception. Output includes the exact 6477193267SjkimAML instruction that caused the method abort, a dump of the method 6478126372Snjllocals and arguments at the time of the abort, and a trace of all 6479126372Snjlnested control method calls. 6480117521Snjl 6481117521SnjlModified the interpreter to allow the creation of buffers of zero 6482117521Snjllength from the AML code. Implemented new code to ensure that no 6483117521Snjlattempt is made to actually allocate a memory buffer (of length 6484193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 6485126372Snjland length zero is created. A warning is no longer issued when 6486126372Snjlthe AML attempts to create a zero-length buffer. 6487117521Snjl 6488117521SnjlImplemented a workaround for the "leading asterisk issue" in 6489117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 6490117521Snjlasterisk is automatically removed if present in any HID, UID, or 6491117521SnjlCID strings. The iASL compiler will still flag this asterisk as 6492117521Snjlan error, however. 6493117521Snjl 6494193267SjkimImplemented full support for _CID methods that return a package of 6495193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 6496126372Snjlnow additionally returns a device _CID list if present. This 6497126372Snjlrequired a change to the external interface in order to pass an 6498126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 6499117521Snjlvariable length. 6500117521Snjl 6501117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 6502117521Snjlhandler initialization code did not know about this exception. 6503117521Snjl 6504117521SnjlCode and Data Size: Current and previous core subsystem library 6505117521Snjlsizes are shown below. These are the code and data sizes for the 6506117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6507117521Snjlthese values do not include any ACPI driver or OSPM code. The 6508117521Snjldebug version of the code includes the debug output trace 6509117521Snjlmechanism and has a much larger code and data size. Note that 6510193267Sjkimthese values will vary depending on the efficiency of the compiler 6511126372Snjland the compiler options used during generation. 6512117521Snjl 6513117521Snjl Previous Release (20030509): 6514117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6515117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6516117521Snjl Current Release: 6517117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6518117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6519117521Snjl 6520117521Snjl 6521117521Snjl2) Linux: 6522117521Snjl 6523117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 6524193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 6525126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 6526117521SnjlJordet) 6527117521Snjl 6528117521SnjlToshiba driver update (John Belmonte) 6529117521Snjl 6530117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 6531117521SnjlMorton) 6532117521Snjl 6533117521Snjl 6534117521Snjl3) iASL Compiler: 6535117521Snjl 6536117521SnjlFixed a reported problem where multiple (nested) ElseIf() 6537117521Snjlstatements were not handled correctly by the compiler, resulting 6538117521Snjlin incorrect warnings and incorrect AML code. This was a problem 6539117521Snjlin both the ASL parser and the code generator. 6540117521Snjl 6541117521Snjl 6542117521Snjl4) Documentation: 6543117521Snjl 6544193267SjkimAdded changes to existing interfaces, new exception codes, and new 6545126372Snjltext concerning reference count object management versus garbage 6546126372Snjlcollection. 6547117521Snjl 6548117521Snjl---------------------------------------- 6549117521Snjl09 May 2003. Summary of changes for version 20030509. 6550117521Snjl 6551117521Snjl 6552117521Snjl1) ACPI CA Core Subsystem: 6553117521Snjl 6554117521SnjlChanged the subsystem initialization sequence to hold off 6555193267Sjkiminstallation of address space handlers until the hardware has been 6556193267Sjkiminitialized and the system has entered ACPI mode. This is because 6557126372Snjlthe installation of space handlers can cause _REG methods to be 6558193267Sjkimrun. Previously, the _REG methods could potentially be run before 6559126372SnjlACPI mode was enabled. 6560117521Snjl 6561193267SjkimFixed some memory leak issues related to address space handler and 6562126372Snjlnotify handler installation. There were some problems with the 6563126372Snjlreference count mechanism caused by the fact that the handler 6564117521Snjlobjects are shared across several namespace objects. 6565117521Snjl 6566117521SnjlFixed a reported problem where reference counts within the 6567117521Snjlnamespace were not properly updated when named objects created by 6568117521Snjlmethod execution were deleted. 6569117521Snjl 6570117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 6571117521Snjlissue during subsystem termination. Restructured the table data 6572117521Snjlstructures to simplify the linked lists and the related code. 6573117521Snjl 6574117521SnjlFixed a problem where the table ID associated with secondary 6575193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 6576126372Snjlcreated by those tables. This would only present a problem for 6577126372Snjltables that are unloaded at run-time, however. 6578117521Snjl 6579117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 6580117521Snjltype as the length parameter (instead of UINT32). 6581117521Snjl 6582117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 6583117521Snjlappears on various systems. This problem could happen when there 6584117521Snjlare multiple PCI_Config operation regions under a single PCI root 6585117521Snjlbus. This doesn't happen very frequently, but there are some 6586117521Snjlsystems that do this in the ASL. 6587117521Snjl 6588117521SnjlFixed a reported problem where the internal DeleteNode function 6589117521Snjlwas incorrectly handling the case where a namespace node was the 6590117521Snjlfirst in the parent's child list, and had additional peers (not 6591117521Snjlthe only child, but first in the list of children.) 6592117521Snjl 6593193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6594126372Snjlbelow. These are the code and data sizes for the acpica.lib 6595126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6596126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6597126372Snjlversion of the code includes the debug output trace mechanism and 6598193267Sjkimhas a much larger code and data size. Note that these values will 6599126372Snjlvary depending on the efficiency of the compiler and the compiler 6600126372Snjloptions used during generation. 6601117521Snjl 6602117521Snjl Previous Release 6603117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6604117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6605117521Snjl Current Release: 6606117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6607117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6608117521Snjl 6609117521Snjl 6610117521Snjl2) Linux: 6611117521Snjl 6612117521SnjlAllow ":" in OS override string (Ducrot Bruno) 6613117521Snjl 6614117521SnjlKobject fix (Greg KH) 6615117521Snjl 6616117521Snjl 6617117521Snjl3 iASL Compiler/Disassembler: 6618117521Snjl 6619117521SnjlFixed a problem in the generation of the C source code files (AML 6620117521Snjlis emitted in C source statements for BIOS inclusion) where the 6621193267SjkimAscii dump that appears within a C comment at the end of each line 6622126372Snjlcould cause a compile time error if the AML sequence happens to 6623126372Snjlhave an open comment or close comment sequence embedded. 6624117521Snjl 6625117521Snjl 6626117521Snjl---------------------------------------- 6627117521Snjl24 April 2003. Summary of changes for version 20030424. 6628117521Snjl 6629117521Snjl 6630117521Snjl1) ACPI CA Core Subsystem: 6631117521Snjl 6632117521SnjlSupport for big-endian systems has been implemented. Most of the 6633193267Sjkimsupport has been invisibly added behind big-endian versions of the 6634126372SnjlACPI_MOVE_* macros. 6635117521Snjl 6636117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 6637117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 6638117521Snjllow level hardware write routine. The offset parameter was 6639193267Sjkimactually eliminated from the low level read/write routines because 6640126372Snjlthey had become obsolete. 6641117521Snjl 6642117521SnjlFixed a problem where a handler object was deleted twice during 6643117521Snjlthe removal of a fixed event handler. 6644117521Snjl 6645117521Snjl 6646117521Snjl2) Linux: 6647117521Snjl 6648117521SnjlA fix for SMP systems with link devices was contributed by 6649167802Sjkim 6650117521SnjlCompaq's Dan Zink. 6651117521Snjl 6652117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 6653193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 6654126372Snjlreturn value from the ACPI CA core back to the OS.) 6655117521Snjl 6656117521Snjl 6657167802Sjkim 6658117521Snjl3) Documentation: 6659117521Snjl 6660117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 6661117521Snjlinterfaces and changes to existing interfaces. 6662117521Snjl 6663117521Snjl---------------------------------------- 6664117521Snjl28 March 2003. Summary of changes for version 20030328. 6665117521Snjl 6666117521Snjl1) ACPI CA Core Subsystem: 6667117521Snjl 6668117521SnjlThe GPE Block Device support has been completed. New interfaces 6669117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 6670117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 6671117521Snjlinto separate interfaces for Fixed Events and General Purpose 6672117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 6673117521Snjl 6674117521SnjlFixed a problem where the error message "Failed to acquire 6675117521Snjlsemaphore" would appear during operations on the embedded 6676117521Snjlcontroller (EC). 6677117521Snjl 6678193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6679126372Snjlbelow. These are the code and data sizes for the acpica.lib 6680126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6681126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6682126372Snjlversion of the code includes the debug output trace mechanism and 6683193267Sjkimhas a much larger code and data size. Note that these values will 6684126372Snjlvary depending on the efficiency of the compiler and the compiler 6685126372Snjloptions used during generation. 6686117521Snjl 6687117521Snjl Previous Release 6688117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6689117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6690117521Snjl Current Release: 6691117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6692117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6693117521Snjl 6694117521Snjl 6695117521Snjl---------------------------------------- 6696114237Snjl28 February 2003. Summary of changes for version 20030228. 6697114237Snjl 6698114237Snjl 6699114237Snjl1) ACPI CA Core Subsystem: 6700114237Snjl 6701114237SnjlThe GPE handling and dispatch code has been completely overhauled 6702114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 6703114237SnjlThis affects internal data structures and code only; there should 6704114237Snjlbe no differences visible externally. One new file has been 6705114237Snjladded, evgpeblk.c 6706114237Snjl 6707114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 6708114237Snjlfields that are used to determine the GPE block lengths. The 6709114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 6710193267Sjkimstructures are ignored. This is per the ACPI specification but it 6711126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 6712193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 6713114237Snjl 6714114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 6715114237Snjlregister to look at the SCI_EN bit. On some machines, this read 6716114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 6717114237Snjlin fact be the cause of slow battery status response on some 6718114237Snjlsystems.) 6719114237Snjl 6720193267SjkimFixed a problem where a store of a NULL string to a package object 6721126372Snjlcould cause the premature deletion of the object. This was seen 6722126372Snjlduring execution of the battery _BIF method on some systems, 6723126372Snjlresulting in no battery data being returned. 6724114237Snjl 6725114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 6726114237Snjllists. 6727114237Snjl 6728193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6729126372Snjlbelow. These are the code and data sizes for the acpica.lib 6730126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6731126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6732126372Snjlversion of the code includes the debug output trace mechanism and 6733193267Sjkimhas a much larger code and data size. Note that these values will 6734126372Snjlvary depending on the efficiency of the compiler and the compiler 6735126372Snjloptions used during generation. 6736114237Snjl 6737114237Snjl Previous Release 6738114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6739114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6740114237Snjl Current Release: 6741114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6742114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6743114237Snjl 6744114237Snjl 6745114237Snjl2) Linux 6746114237Snjl 6747114237SnjlS3 fixes (Ole Rohne) 6748114237Snjl 6749114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 6750114237Snjl(Bjorn Helgaas) 6751114237Snjl 6752114237SnjlAdd S4BIOS support (Pavel Machek) 6753114237Snjl 6754114237SnjlMap in entire table before performing checksum (John Stultz) 6755114237Snjl 6756193267SjkimExpand the mem= cmdline to allow the specification of reserved and 6757126372SnjlACPI DATA blocks (Pavel Machek) 6758114237Snjl 6759114237SnjlNever use ACPI on VISWS 6760114237Snjl 6761114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 6762114237Snjl 6763114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 6764114237Snjlcausing us to think that some systems support C2 when they really 6765114237Snjldon't. 6766114237Snjl 6767114237SnjlDo not count processor objects for non-present CPUs (Thanks to 6768114237SnjlDominik Brodowski) 6769114237Snjl 6770114237Snjl 6771114237Snjl3) iASL Compiler: 6772114237Snjl 6773114237SnjlFixed a problem where ASL include files could not be found and 6774114237Snjlopened. 6775114237Snjl 6776114237SnjlAdded support for the _PDC reserved name. 6777114237Snjl 6778114237Snjl 6779117521Snjl---------------------------------------- 6780114237Snjl22 January 2003. Summary of changes for version 20030122. 6781114237Snjl 6782114237Snjl 6783114237Snjl1) ACPI CA Core Subsystem: 6784114237Snjl 6785114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 6786114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 6787193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 6788126372Snjldo anything anyway, the new prototype behavior will ignore this 6789126372Snjlerror. This is a case where we can relax the strict checking in 6790126372Snjlthe interpreter in the name of compatibility. 6791114237Snjl 6792114237Snjl 6793114237Snjl2) Linux 6794114237Snjl 6795114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 6796114237SnjlLinux package for the first time. This is the utility that is 6797193267Sjkimused to convert the ACPI CA base source code to the Linux version. 6798114237Snjl 6799114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 6800114237Snjl 6801114237Snjl(Both) Move more headers to include/acpi, and delete an unused 6802114237Snjlheader. 6803114237Snjl 6804114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 6805114237Snjl 6806114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 6807114237Snjl 6808114237Snjl(Both) Remove include of unused header (Adrian Bunk) 6809114237Snjl 6810114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 6811114237Snjlthe 6812193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 6813126372Snjlnow. 6814114237Snjl 6815193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 6816114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 6817114237Snjl 6818114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 6819114237Snjl 6820114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 6821114237Snjl 6822114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 6823114237Snjl(Dominik Brodowski) 6824114237Snjl 6825114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 6826114237Snjl 6827114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 6828114237SnjlVisinoni) 6829114237Snjl 6830114237Snjl 6831114237Snjl3) iASL Compiler: 6832114237Snjl 6833114237SnjlAdded support to disassemble SSDT and PSDTs. 6834114237Snjl 6835114237SnjlImplemented support to obtain SSDTs from the Windows registry if 6836114237Snjlavailable. 6837114237Snjl 6838114237Snjl 6839102550Siwasaki---------------------------------------- 6840114237Snjl09 January 2003. Summary of changes for version 20030109. 6841114237Snjl 6842114237Snjl1) ACPI CA Core Subsystem: 6843114237Snjl 6844114237SnjlChanged the behavior of the internal Buffer-to-String conversion 6845193267Sjkimfunction. The current ACPI specification states that the contents 6846126372Snjlof the buffer are "converted to a string of two-character 6847126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 6848193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 6849193267Sjkimimplementations (although the behavior was not defined in the ACPI 6850126372Snjl1.0 specification). The new behavior simply copies data from the 6851193267Sjkimbuffer to the string until a null character is found or the end of 6852126372Snjlthe buffer is reached. The new String object is always null 6853126372Snjlterminated. This problem was seen during the generation of _BIF 6854126372Snjlbattery data where incorrect strings were returned for battery 6855126372Snjltype, etc. This will also require an errata to the ACPI 6856126372Snjlspecification. 6857114237Snjl 6858114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 6859114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 6860114237Snjl 6861114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 6862114237Snjlupdated to 2003. 6863114237Snjl 6864193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6865126372Snjlbelow. These are the code and data sizes for the acpica.lib 6866126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6867126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6868126372Snjlversion of the code includes the debug output trace mechanism and 6869193267Sjkimhas a much larger code and data size. Note that these values will 6870126372Snjlvary depending on the efficiency of the compiler and the compiler 6871126372Snjloptions used during generation. 6872114237Snjl 6873114237Snjl Previous Release 6874114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6875114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6876114237Snjl Current Release: 6877114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6878114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6879114237Snjl 6880114237Snjl 6881114237Snjl2) Linux 6882114237Snjl 6883114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 6884114237Snjl 6885114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 6886114237Snjl 6887114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 6888114237Snjl 6889114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 6890114237Snjl 6891114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 6892114237Snjlof schedule_work() 6893114237Snjl 6894114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 6895114237Snjl 6896114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 6897114237Snjl 6898114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 6899114237Snjl 6900114237SnjlSeveral changes have been made to the source code translation 6901114237Snjlutility that generates the Linux Code in order to make the code 6902114237Snjlmore "Linux-like": 6903114237Snjl 6904114237SnjlAll typedefs on structs and unions have been removed in keeping 6905114237Snjlwith the Linux coding style. 6906114237Snjl 6907114237SnjlRemoved the non-Linux SourceSafe module revision number from each 6908114237Snjlmodule header. 6909114237Snjl 6910114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 6911114237SnjlDoubled the number of symbols that are lowercased. 6912114237Snjl 6913114237SnjlFixed a problem where identifiers within procedure headers and 6914114237Snjlwithin quotes were not fully lower cased (they were left with a 6915114237Snjlstarting capital.) 6916114237Snjl 6917114237SnjlSome C macros whose only purpose is to allow the generation of 16- 6918114237Snjlbit code are now completely removed in the Linux code, increasing 6919114237Snjlreadability and maintainability. 6920114237Snjl 6921114237Snjl---------------------------------------- 6922114237Snjl 6923114237Snjl12 December 2002. Summary of changes for version 20021212. 6924114237Snjl 6925114237Snjl 6926114237Snjl1) ACPI CA Core Subsystem: 6927114237Snjl 6928114237SnjlFixed a problem where the creation of a zero-length AML Buffer 6929114237Snjlwould cause a fault. 6930114237Snjl 6931193267SjkimFixed a problem where a Buffer object that pointed to a static AML 6932126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 6933126372Snjlmemory corruption. 6934114237Snjl 6935114237SnjlFixed a problem where a user buffer (passed in to the external 6936114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 6937114237Snjlsmall to complete the operation, causing memory corruption. 6938114237Snjl 6939114237SnjlFixed a problem in the Buffer-to-String conversion code where a 6940114237Snjlstring of length one was always returned, regardless of the size 6941114237Snjlof the input Buffer object. 6942114237Snjl 6943114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 6944114237Snjllack of need and lack of consistent use. 6945114237Snjl 6946193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6947126372Snjlbelow. These are the code and data sizes for the acpica.lib 6948126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6949126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6950126372Snjlversion of the code includes the debug output trace mechanism and 6951193267Sjkimhas a much larger code and data size. Note that these values will 6952126372Snjlvary depending on the efficiency of the compiler and the compiler 6953126372Snjloptions used during generation. 6954114237Snjl 6955114237Snjl Previous Release 6956114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6957114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6958114237Snjl Current Release: 6959114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6960114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6961114237Snjl 6962114237Snjl 6963114237Snjl---------------------------------------- 6964114237Snjl05 December 2002. Summary of changes for version 20021205. 6965114237Snjl 6966114237Snjl1) ACPI CA Core Subsystem: 6967114237Snjl 6968114237SnjlFixed a problem where a store to a String or Buffer object could 6969114237Snjlcause corruption of the DSDT if the object type being stored was 6970114237Snjlthe same as the target object type and the length of the object 6971114237Snjlbeing stored was equal to or smaller than the original (existing) 6972114237Snjltarget object. This was seen to cause corruption of battery _BIF 6973114237Snjlbuffers if the _BIF method modified the buffer on the fly. 6974114237Snjl 6975193267SjkimFixed a problem where an internal error was generated if a control 6976126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 6977126372SnjlPackage declaration. This was caused by the deferred parsing of 6978126372Snjlthe control method and thus the deferred creation of the internal 6979126372Snjlmethod object. The solution to this problem was to create the 6980126372Snjlinternal method object at the moment the method is encountered in 6981126372Snjlthe first pass - so that subsequent references to the method will 6982126372Snjlable to obtain the required parameter count and thus properly 6983126372Snjlparse the method invocation. This problem presented itself as an 6984126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 6985114237Snjl 6986114237SnjlFixed a problem where the internal String object copy routine did 6987193267Sjkimnot always allocate sufficient memory for the target String object 6988126372Snjland caused memory corruption. This problem was seen to cause 6989126372Snjl"Allocation already present in list!" errors as memory allocation 6990126372Snjlbecame corrupted. 6991114237Snjl 6992193267SjkimImplemented a new function for the evaluation of namespace objects 6993126372Snjlthat allows the specification of the allowable return object 6994126372Snjltypes. This simplifies a lot of code that checks for a return 6995126372Snjlobject of one or more specific objects returned from the 6996114237Snjlevaluation (such as _STA, etc.) This may become and external 6997114237Snjlfunction if it would be useful to ACPI-related drivers. 6998114237Snjl 6999114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 7000114237Snjlclarity. 7001114237Snjl 7002114237SnjlCompleted additional code restructuring to allow more modular 7003114237Snjllinking for iASL compiler and AcpiExec. Several files were split 7004114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 7005114237Snjl 7006114237SnjlImplemented an abort mechanism to terminate an executing control 7007193267Sjkimmethod via the AML debugger. This feature is useful for debugging 7008126372Snjlcontrol methods that depend (wait) for specific hardware 7009126372Snjlresponses. 7010114237Snjl 7011193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7012126372Snjlbelow. These are the code and data sizes for the acpica.lib 7013126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7014126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7015126372Snjlversion of the code includes the debug output trace mechanism and 7016193267Sjkimhas a much larger code and data size. Note that these values will 7017126372Snjlvary depending on the efficiency of the compiler and the compiler 7018126372Snjloptions used during generation. 7019114237Snjl 7020114237Snjl Previous Release 7021114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7022114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7023114237Snjl Current Release: 7024114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 7025114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 7026114237Snjl 7027114237Snjl 7028114237Snjl2) iASL Compiler/Disassembler 7029114237Snjl 7030114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 7031114237SnjlDescriptors. If specified in the ASL, the optional "Resource 7032114237SnjlSource Index" and "Resource Source" fields were not inserted into 7033114237Snjlthe correct location within the AML resource descriptor, creating 7034114237Snjlan invalid descriptor. 7035114237Snjl 7036193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 7037126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 7038126372Snjlwere ignored. 7039114237Snjl 7040114237Snjl 7041114237Snjl---------------------------------------- 7042114237Snjl22 November 2002. Summary of changes for version 20021122. 7043114237Snjl 7044114237Snjl 7045114237Snjl1) ACPI CA Core Subsystem: 7046114237Snjl 7047114237SnjlFixed a reported problem where an object stored to a Method Local 7048114237Snjlor Arg was not copied to a new object during the store - the 7049114237Snjlobject pointer was simply copied to the Local/Arg. This caused 7050114237Snjlall subsequent operations on the Local/Arg to also affect the 7051114237Snjloriginal source of the store operation. 7052114237Snjl 7053114237SnjlFixed a problem where a store operation to a Method Local or Arg 7054114237Snjlwas not completed properly if the Local/Arg contained a reference 7055114237Snjl(from RefOf) to a named field. The general-purpose store-to- 7056114237Snjlnamespace-node code is now used so that this case is handled 7057114237Snjlautomatically. 7058114237Snjl 7059193267SjkimFixed a problem where the internal object copy routine would cause 7060126372Snjla protection fault if the object being copied was a Package and 7061126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 7062114237Snjlpackage. 7063114237Snjl 7064114237SnjlFixed a problem with the GPE initialization that resulted from an 7065114237Snjlambiguity in the ACPI specification. One section of the 7066114237Snjlspecification states that both the address and length of the GPE 7067193267Sjkimblock must be zero if the block is not supported. Another section 7068126372Snjlimplies that only the address need be zero if the block is not 7069193267Sjkimsupported. The code has been changed so that both the address and 7070126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 7071126372Snjlif either the address or the length is zero, the GPE block is 7072126372Snjlinvalid.) 7073114237Snjl 7074193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7075126372Snjlbelow. These are the code and data sizes for the acpica.lib 7076126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7077126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7078126372Snjlversion of the code includes the debug output trace mechanism and 7079193267Sjkimhas a much larger code and data size. Note that these values will 7080126372Snjlvary depending on the efficiency of the compiler and the compiler 7081126372Snjloptions used during generation. 7082114237Snjl 7083114237Snjl Previous Release 7084114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7085114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7086114237Snjl Current Release: 7087114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7088114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7089114237Snjl 7090114237Snjl 7091114237Snjl2) Linux 7092114237Snjl 7093114237SnjlCleaned up EC driver. Exported an external EC read/write 7094114237Snjlinterface. By going through this, other drivers (most notably 7095114237Snjlsonypi) will be able to serialize access to the EC. 7096114237Snjl 7097114237Snjl 7098114237Snjl3) iASL Compiler/Disassembler 7099114237Snjl 7100114237SnjlImplemented support to optionally generate include files for both 7101114237SnjlASM and C (the -i switch). This simplifies BIOS development by 7102114237Snjlautomatically creating include files that contain external 7103114237Snjldeclarations for the symbols that are created within the 7104167802Sjkim 7105114237Snjl(optionally generated) ASM and C AML source files. 7106114237Snjl 7107114237Snjl 7108114237Snjl---------------------------------------- 7109107325Siwasaki15 November 2002. Summary of changes for version 20021115. 7110104470Siwasaki 7111107325Siwasaki1) ACPI CA Core Subsystem: 7112107325Siwasaki 7113114237SnjlFixed a memory leak problem where an error during resolution of 7114167802Sjkim 7115114237Snjlmethod arguments during a method invocation from another method 7116114237Snjlfailed to cleanup properly by deleting all successfully resolved 7117114237Snjlargument objects. 7118107325Siwasaki 7119114237SnjlFixed a problem where the target of the Index() operator was not 7120114237Snjlcorrectly constructed if the source object was a package. This 7121114237Snjlproblem has not been detected because the use of a target operand 7122114237Snjlwith Index() is very rare. 7123107325Siwasaki 7124107325SiwasakiFixed a problem with the Index() operator where an attempt was 7125107325Siwasakimade to delete the operand objects twice. 7126107325Siwasaki 7127107325SiwasakiFixed a problem where an attempt was made to delete an operand 7128114237Snjltwice during execution of the CondRefOf() operator if the target 7129114237Snjldid not exist. 7130107325Siwasaki 7131114237SnjlImplemented the first of perhaps several internal create object 7132193267Sjkimfunctions that create and initialize a specific object type. This 7133126372Snjlconsolidates duplicated code wherever the object is created, thus 7134126372Snjlshrinking the size of the subsystem. 7135107325Siwasaki 7136114237SnjlImplemented improved debug/error messages for errors that occur 7137114237Snjlduring nested method invocations. All executing method pathnames 7138193267Sjkimare displayed (with the error) as the call stack is unwound - thus 7139126372Snjlsimplifying debug. 7140107325Siwasaki 7141107325SiwasakiFixed a problem introduced in the 10/02 release that caused 7142114237Snjlpremature deletion of a buffer object if a buffer was used as an 7143114237SnjlASL operand where an integer operand is required (Thus causing an 7144193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 7145126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 7146114237Snjlincorrectly.) 7147107325Siwasaki 7148193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7149126372Snjlbelow. These are the code and data sizes for the acpica.lib 7150126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7151126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7152126372Snjlversion of the code includes the debug output trace mechanism and 7153193267Sjkimhas a much larger code and data size. Note that these values will 7154126372Snjlvary depending on the efficiency of the compiler and the compiler 7155126372Snjloptions used during generation. 7156107325Siwasaki 7157107325Siwasaki Previous Release 7158107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7159107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7160107325Siwasaki Current Release: 7161107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7162107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7163107325Siwasaki 7164107325Siwasaki 7165107325Siwasaki2) Linux 7166107325Siwasaki 7167114237SnjlChanged the implementation of the ACPI semaphores to use down() 7168114237Snjlinstead of down_interruptable(). It is important that the 7169114237Snjlexecution of ACPI control methods not be interrupted by signals. 7170114237SnjlMethods must run to completion, or the system may be left in an 7171114237Snjlunknown/unstable state. 7172107325Siwasaki 7173193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 7174126372Snjl(Shawn Starr) 7175107325Siwasaki 7176107325Siwasaki 7177107325Siwasaki3) iASL Compiler/Disassembler 7178107325Siwasaki 7179107325Siwasaki 7180114237SnjlChanged the default location of output files. All output files 7181114237Snjlare now placed in the current directory by default instead of in 7182114237Snjlthe directory of the source file. This change may affect some 7183114237Snjlexisting makefiles, but it brings the behavior of the compiler in 7184114237Snjlline with other similar tools. The location of the output files 7185114237Snjlcan be overridden with the -p command line switch. 7186107325Siwasaki 7187114237Snjl 7188107325Siwasaki---------------------------------------- 7189107325Siwasaki11 November 2002. Summary of changes for version 20021111. 7190107325Siwasaki 7191107325Siwasaki 7192114237Snjl0) ACPI Specification 2.0B is released and is now available at: 7193114237Snjlhttp://www.acpi.info/index.html 7194107325Siwasaki 7195107325Siwasaki 7196107325Siwasaki1) ACPI CA Core Subsystem: 7197107325Siwasaki 7198107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 7199114237SnjlThis includes the early detection and handoff of the request to 7200114237Snjlthe SMBus region handler (avoiding all of the complex field 7201107325Siwasakisupport code), and support for the bidirectional return packet 7202107325Siwasakifrom an SMBus write operation. This paves the way for the 7203107325Siwasakidevelopment of SMBus drivers in each host operating system. 7204107325Siwasaki 7205107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 7206107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 7207107325Siwasakispecification. This had the side effect of causing ASL 7208107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 7209107325Siwasakiforever. Changed all internal references to the ACPI timeout 7210193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 7211126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 7212107325Siwasaki 7213193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7214126372Snjlbelow. These are the code and data sizes for the acpica.lib 7215126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7216126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7217126372Snjlversion of the code includes the debug output trace mechanism and 7218193267Sjkimhas a much larger code and data size. Note that these values will 7219126372Snjlvary depending on the efficiency of the compiler and the compiler 7220126372Snjloptions used during generation. 7221107325Siwasaki 7222107325Siwasaki Previous Release 7223107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7224107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7225107325Siwasaki Current Release: 7226107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7227107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7228107325Siwasaki 7229107325Siwasaki 7230107325Siwasaki2) Linux 7231107325Siwasaki 7232107325SiwasakiModule loading/unloading fixes (John Cagle) 7233107325Siwasaki 7234107325Siwasaki 7235107325Siwasaki3) iASL Compiler/Disassembler 7236107325Siwasaki 7237107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 7238107325Siwasaki 7239107325SiwasakiImplemented support for the disassembly of all SMBus protocol 7240107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 7241107325Siwasaki 7242107325Siwasaki---------------------------------------- 7243107325Siwasaki01 November 2002. Summary of changes for version 20021101. 7244107325Siwasaki 7245107325Siwasaki 7246107325Siwasaki1) ACPI CA Core Subsystem: 7247107325Siwasaki 7248193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 7249126372Snjlblock were not handled correctly. This resulted in a "GPE 7250114237Snjloverlap" error message. GPE0 is no longer required. 7251107325Siwasaki 7252107325SiwasakiRemoved code added in the previous release that inserted nodes 7253114237Snjlinto the namespace in alphabetical order. This caused some side- 7254114237Snjleffects on various machines. The root cause of the problem is 7255114237Snjlstill under investigation since in theory, the internal ordering 7256114237Snjlof the namespace nodes should not matter. 7257107325Siwasaki 7258107325Siwasaki 7259114237SnjlEnhanced error reporting for the case where a named object is not 7260114237Snjlfound during control method execution. The full ACPI namepath 7261114237Snjl(name reference) of the object that was not found is displayed in 7262114237Snjlthis case. 7263107325Siwasaki 7264193267SjkimNote: as a result of the overhaul of the namespace object types in 7265126372Snjlthe previous release, the namespace nodes for the predefined 7266114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 7267114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 7268114237Snjlmanagement code but may affect code that walks the namespace tree 7269114237Snjllooking for specific object types. 7270114237Snjl 7271193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7272126372Snjlbelow. These are the code and data sizes for the acpica.lib 7273126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7274126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7275126372Snjlversion of the code includes the debug output trace mechanism and 7276193267Sjkimhas a much larger code and data size. Note that these values will 7277126372Snjlvary depending on the efficiency of the compiler and the compiler 7278126372Snjloptions used during generation. 7279107325Siwasaki 7280107325Siwasaki Previous Release 7281107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7282107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7283107325Siwasaki Current Release: 7284107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7285107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7286107325Siwasaki 7287107325Siwasaki 7288107325Siwasaki2) Linux 7289107325Siwasaki 7290107325SiwasakiFixed a problem introduced in the previous release where the 7291193267SjkimProcessor and Thermal objects were not recognized and installed in 7292193267Sjkim/proc. This was related to the scope type change described above. 7293107325Siwasaki 7294107325Siwasaki 7295107325Siwasaki3) iASL Compiler/Disassembler 7296107325Siwasaki 7297114237SnjlImplemented the -g option to get all of the required ACPI tables 7298114237Snjlfrom the registry and save them to files (Windows version of the 7299193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 7300107325Siwasaki 7301114237SnjlAdded ACPI table checksum validation during table disassembly in 7302114237Snjlorder to catch corrupted tables. 7303107325Siwasaki 7304107325Siwasaki 7305107325Siwasaki---------------------------------------- 7306107325Siwasaki22 October 2002. Summary of changes for version 20021022. 7307107325Siwasaki 7308107325Siwasaki1) ACPI CA Core Subsystem: 7309107325Siwasaki 7310114237SnjlImplemented a restriction on the Scope operator that the target 7311114237Snjlmust already exist in the namespace at the time the operator is 7312114237Snjlencountered (during table load or method execution). In other 7313114237Snjlwords, forward references are not allowed and Scope() cannot 7314114237Snjlcreate a new object. This changes the previous behavior where the 7315193267Sjkiminterpreter would create the name if not found. This new behavior 7316126372Snjlcorrectly enables the search-to-root algorithm during namespace 7317126372Snjllookup of the target name. Because of this upsearch, this fixes 7318126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 7319126372Snjlinterpreter and iASL compiler compatible with other ACPI 7320114237Snjlimplementations. 7321107325Siwasaki 7322114237SnjlCompleted a major overhaul of the internal ACPI object types for 7323114237Snjlthe ACPI Namespace and the associated operand objects. Many of 7324114237Snjlthese types had become obsolete with the introduction of the two- 7325114237Snjlpass namespace load. This cleanup simplifies the code and makes 7326114237Snjlthe entire namespace load mechanism much clearer and easier to 7327114237Snjlunderstand. 7328107325Siwasaki 7329114237SnjlImproved debug output for tracking scope opening/closing to help 7330114237Snjldiagnose scoping issues. The old scope name as well as the new 7331114237Snjlscope name are displayed. Also improved error messages for 7332114237Snjlproblems with ASL Mutex objects and error messages for GPE 7333114237Snjlproblems. 7334107325Siwasaki 7335107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 7336107325Siwasaki 7337114237SnjlAll string output (for all namespace/object dumps) now uses the 7338193267Sjkimcommon ACPI string output procedure which handles escapes properly 7339126372Snjland does not emit non-printable characters. 7340107325Siwasaki 7341107325SiwasakiFixed some issues with constants in the 64-bit version of the 7342107325Siwasakilocal C library (utclib.c) 7343107325Siwasaki 7344107325Siwasaki 7345107325Siwasaki2) Linux 7346107325Siwasaki 7347107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 7348107325Siwasakiinterrupt level. 7349107325Siwasaki 7350107325Siwasaki 7351107325Siwasaki3) iASL Compiler/Disassembler 7352107325Siwasaki 7353193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 7354126372Snjl2 opcodes outside of a control method. This means that the 7355114237Snjl"executable" operators (versus the "namespace" operators) cannot 7356193267Sjkimbe used at the table level; they can only be used within a control 7357126372Snjlmethod. 7358107325Siwasaki 7359107325SiwasakiImplemented the restriction on the Scope() operator where the 7360107325Siwasakitarget must already exist in the namespace at the time the 7361114237Snjloperator is encountered (during ASL compilation). In other words, 7362193267Sjkimforward references are not allowed and Scope() cannot create a new 7363126372Snjlobject. This makes the iASL compiler compatible with other ACPI 7364193267Sjkimimplementations and makes the Scope() implementation adhere to the 7365126372SnjlACPI specification. 7366107325Siwasaki 7367193267SjkimFixed a problem where namepath optimization for the Alias operator 7368193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 7369126372Snjla "Missing alias link" error message. 7370107325Siwasaki 7371114237SnjlFixed a problem where an "unknown reserved name" warning could be 7372114237Snjlincorrectly generated for names like "_SB" when the trailing 7373114237Snjlunderscore is not used in the original ASL. 7374107325Siwasaki 7375107325SiwasakiFixed a problem where the reserved name check did not handle 7376114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 7377114237Snjlthe NamePath was examined instead of the last NameSeg. 7378107325Siwasaki 7379107325Siwasaki 7380107325Siwasaki---------------------------------------- 7381107325Siwasaki 7382104470Siwasaki02 October 2002. Summary of changes for this release. 7383104470Siwasaki 7384104470Siwasaki 7385104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 7386104470Siwasaki 7387104470SiwasakiFixed a problem where a store/copy of a string to an existing 7388193267Sjkimstring did not always set the string length properly in the String 7389126372Snjlobject. 7390104470Siwasaki 7391104470SiwasakiFixed a reported problem with the ToString operator where the 7392193267Sjkimbehavior was identical to the ToHexString operator instead of just 7393126372Snjlsimply converting a raw buffer to a string data type. 7394104470Siwasaki 7395104470SiwasakiFixed a problem where CopyObject and the other "explicit" 7396193267Sjkimconversion operators were not updating the internal namespace node 7397126372Snjltype as part of the store operation. 7398104470Siwasaki 7399104470SiwasakiFixed a memory leak during implicit source operand conversion 7400193267Sjkimwhere the original object was not deleted if it was converted to a 7401126372Snjlnew object of a different type. 7402104470Siwasaki 7403193267SjkimEnhanced error messages for all problems associated with namespace 7404193267Sjkimlookups. Common procedure generates and prints the lookup name as 7405126372Snjlwell as the formatted status. 7406104470Siwasaki 7407104470SiwasakiCompleted implementation of a new design for the Alias support 7408193267Sjkimwithin the namespace. The existing design did not handle the case 7409193267Sjkimwhere a new object was assigned to one of the two names due to the 7410193267Sjkimuse of an explicit conversion operator, resulting in the two names 7411126372Snjlpointing to two different objects. The new design simply points 7412126372Snjlthe Alias name to the original name node - not to the object. 7413193267SjkimThis results in a level of indirection that must be handled in the 7414126372Snjlname resolution mechanism. 7415104470Siwasaki 7416193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7417126372Snjlbelow. These are the code and data sizes for the acpica.lib 7418126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7419126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7420126372Snjlversion of the code includes the debug output trace mechanism and 7421193267Sjkimhas a larger code and data size. Note that these values will vary 7422126372Snjldepending on the efficiency of the compiler and the compiler 7423126372Snjloptions used during generation. 7424104470Siwasaki 7425104470Siwasaki Previous Release 7426104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7427104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7428104470Siwasaki Current Release: 7429104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7430104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7431104470Siwasaki 7432104470Siwasaki 7433104470Siwasaki2) Linux 7434104470Siwasaki 7435104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 7436104470SiwasakiNeumann) 7437104470Siwasaki 7438104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 7439104470Siwasaki 7440114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 7441104470Siwasaki 7442104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 7443104470Siwasaki 7444104470SiwasakiIA64 fixes. (David Mosberger) 7445104470Siwasaki 7446104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 7447104470Siwasaki 7448104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 7449104470SiwasakiBrodowski) 7450104470Siwasaki 7451104470Siwasaki 7452104470Siwasaki3) iASL Compiler/Disassembler 7453104470Siwasaki 7454104470SiwasakiClarified some warning/error messages. 7455104470Siwasaki 7456104470Siwasaki 7457104470Siwasaki---------------------------------------- 7458104470Siwasaki18 September 2002. Summary of changes for this release. 7459104470Siwasaki 7460104470Siwasaki 7461104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 7462104470Siwasaki 7463114237SnjlFixed a reported problem with reference chaining (via the Index() 7464193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 7465126372SnjlThe definition of these operators includes the dereferencing of 7466126372Snjlall chained references to return information on the base object. 7467104470Siwasaki 7468104470SiwasakiFixed a problem with stores to indexed package elements - the 7469104470Siwasakiexisting code would not complete the store if an "implicit 7470114237Snjlconversion" was not performed. In other words, if the existing 7471114237Snjlobject (package element) was to be replaced completely, the code 7472114237Snjldidn't handle this case. 7473104470Siwasaki 7474104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 7475104470Siwasakitarget name to refer to an object of type Integer, String, or 7476104470SiwasakiBuffer, in addition to the scoping object types (Device, 7477104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 7478114237SnjlThis allows existing AML code that has workarounds for a bug in 7479193267SjkimWindows to function properly. A warning is issued, however. This 7480126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 7481126372Snjlan example of this type of ASL code: 7482104470Siwasaki 7483104470Siwasaki Name(DEB,0x00) 7484104470Siwasaki Scope(DEB) 7485104470Siwasaki { 7486104470Siwasaki 7487114237SnjlFixed some reported problems with 64-bit integer support in the 7488114237Snjllocal implementation of C library functions (clib.c) 7489104470Siwasaki 7490104470Siwasaki 7491104470Siwasaki2) Linux 7492104470Siwasaki 7493104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 7494104470Siwasakiundefined in non-SMP. 7495104470Siwasaki 7496114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 7497114237Snjlsystems that do not have an interrupt override entry in the MADT. 7498104470Siwasaki 7499104470Siwasaki2.5 big driver reorganization (Pat Mochel) 7500104470Siwasaki 7501104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 7502104470Siwasaki 7503104470SiwasakiNew blacklist entries (Andi Kleen) 7504104470Siwasaki 7505114237SnjlBlacklist improvements. Split blacklist code out into a separate 7506114237Snjlfile. Move checking the blacklist to very early. Previously, we 7507114237Snjlwould use ACPI tables, and then halfway through init, check the 7508114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 7509114237Snjlback to non-ACPI. 7510104470Siwasaki 7511104470Siwasaki 7512104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 7513104470Siwasaki 7514114237SnjlFixed a problem where the typechecking code didn't know that an 7515114237Snjlalias could point to a method. In other words, aliases were not 7516114237Snjlbeing dereferenced during typechecking. 7517104470Siwasaki 7518104470Siwasaki 7519104470Siwasaki---------------------------------------- 7520104470Siwasaki29 August 2002. Summary of changes for this release. 7521104470Siwasaki 7522104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 7523104470Siwasaki 7524114237SnjlIf the target of a Scope() operator already exists, it must be an 7525114237Snjlobject type that actually opens a scope -- such as a Device, 7526193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 7527126372Snjlcheck has been added to the iASL compiler also. 7528104470Siwasaki 7529114237SnjlTightened up the namespace load to disallow multiple names in the 7530114237Snjlsame scope. This previously was allowed if both objects were of 7531114237Snjlthe same type. (i.e., a lookup was the same as entering a new 7532114237Snjlname). 7533104470Siwasaki 7534104470Siwasaki 7535104470Siwasaki2) Linux 7536104470Siwasaki 7537104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 7538104470Siwasakipolarity. 7539104470Siwasaki 7540104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 7541104470Siwasaki 7542104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 7543104470Siwasakiinterpreter *or* the tables. 7544104470Siwasaki 7545193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 7546126372SnjlTakayoshi) 7547104470Siwasaki 7548104470Siwasaki 7549104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 7550104470Siwasaki 7551104470SiwasakiImplemented namepath optimization for name declarations. For 7552104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 7553104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 7554104470Siwasaki\_SB_ scope. This optimization is in addition to the named 7555104470Siwasakireference path optimization first released in the previous 7556114237Snjlversion. This would seem to complete all possible optimizations 7557114237Snjlfor namepaths within the ASL/AML. 7558104470Siwasaki 7559114237SnjlIf the target of a Scope() operator already exists, it must be an 7560114237Snjlobject type that actually opens a scope -- such as a Device, 7561114237SnjlMethod, Scope, etc. 7562104470Siwasaki 7563114237SnjlImplemented a check and warning for unreachable code in the same 7564114237Snjlblock below a Return() statement. 7565104470Siwasaki 7566114237SnjlFixed a problem where the listing file was not generated if the 7567114237Snjlcompiler aborted if the maximum error count was exceeded (200). 7568104470Siwasaki 7569193267SjkimFixed a problem where the typechecking of method return values was 7570126372Snjlbroken. This includes the check for a return value when the 7571114237Snjlmethod is invoked as a TermArg (a return value is expected.) 7572104470Siwasaki 7573104470SiwasakiFixed a reported problem where EOF conditions during a quoted 7574104470Siwasakistring or comment caused a fault. 7575104470Siwasaki 7576104470Siwasaki 7577104470Siwasaki---------------------------------------- 7578102550Siwasaki15 August 2002. Summary of changes for this release. 7579102550Siwasaki 7580102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 7581102550Siwasaki 7582114237SnjlFixed a reported problem where a Store to a method argument that 7583193267Sjkimcontains a reference did not perform the indirect store correctly. 7584126372SnjlThis problem was created during the conversion to the new 7585126372Snjlreference object model - the indirect store to a method argument 7586126372Snjlcode was not updated to reflect the new model. 7587102550Siwasaki 7588114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 7589193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 7590102550Siwasaki 7591102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 7592114237Snjlprefix. The heavy use of the carat operator by the new namepath 7593193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 7594126372Snjlinterpreter handling of this prefix. In the case where one or 7595126372Snjlmore carats precede a single nameseg, the nameseg was treated as 7596126372Snjlstandalone and the search rule (to root) was inadvertently 7597114237Snjlapplied. This could cause both the iASL compiler and the 7598114237Snjlinterpreter to find the wrong object or to miss the error that 7599114237Snjlshould occur if the object does not exist at that exact pathname. 7600102550Siwasaki 7601114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 7602193267Sjkimload. This was a relatively minor tweak to the table loading code 7603126372Snjl(a problem caused by the unexpected encounter with a method 7604193267Sjkiminvocation not within a control method), but it does not solve the 7605126372Snjloverall issue of the execution of AML code at the table level. 7606126372SnjlThis investigation is still ongoing. 7607102550Siwasaki 7608193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7609126372Snjlbelow. These are the code and data sizes for the acpica.lib 7610126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7611126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7612126372Snjlversion of the code includes the debug output trace mechanism and 7613193267Sjkimhas a larger code and data size. Note that these values will vary 7614126372Snjldepending on the efficiency of the compiler and the compiler 7615126372Snjloptions used during generation. 7616102550Siwasaki 7617102550Siwasaki Previous Release 7618104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7619104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7620102550Siwasaki Current Release: 7621104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7622104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7623102550Siwasaki 7624102550Siwasaki 7625102550Siwasaki2) Linux 7626102550Siwasaki 7627102550SiwasakiRemove redundant slab.h include (Brad Hards) 7628102550Siwasaki 7629102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 7630102550Siwasaki 7631102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 7632102550Siwasaki 7633104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 7634104470SiwasakiMachek) 7635102550Siwasaki 7636102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 7637102550Siwasaki 7638102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 7639102550Siwasaki 7640102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 7641102550Siwasaki 7642102550Siwasaki 7643102550Siwasaki3) iASL Compiler/Disassembler 7644102550Siwasaki 7645114237SnjlReworked the compiler options to make them more consistent and to 7646114237Snjluse two-letter options where appropriate. We were running out of 7647114237Snjlsensible letters. This may break some makefiles, so check the 7648114237Snjlcurrent options list by invoking the compiler with no parameters. 7649102550Siwasaki 7650102550SiwasakiCompleted the design and implementation of the ASL namepath 7651114237Snjloptimization option for the compiler. This option optimizes all 7652114237Snjlreferences to named objects to the shortest possible path. The 7653193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 7654126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 7655126372Snjlcannot be used (because either the name is not in the search path 7656126372Snjlor there is a conflict with another object with the same name), 7657126372Snjlthe pathname is optimized using the carat prefix (usually a 7658126372Snjlshorter string than specifying the entire path from the root.) 7659102550Siwasaki 7660114237SnjlImplemented support to obtain the DSDT from the Windows registry 7661114237Snjl(when the disassembly option is specified with no input file). 7662114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 7663114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 7664114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 7665114237Snjlfunction in the DOS OSL to make the disassembler truly OS 7666114237Snjlindependent. 7667102550Siwasaki 7668114237SnjlImplemented a new option to disassemble and compile in one step. 7669114237SnjlWhen used without an input filename, this option will grab the 7670193267SjkimDSDT from the local machine, disassemble it, and compile it in one 7671126372Snjlstep. 7672102550Siwasaki 7673114237SnjlAdded a warning message for invalid escapes (a backslash followed 7674114237Snjlby any character other than the allowable escapes). This catches 7675114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 7676167802Sjkim 7677193267SjkimAlso, there are numerous instances in the ACPI specification where 7678126372Snjlthis error occurs. 7679102550Siwasaki 7680104470SiwasakiAdded a compiler option to disable all optimizations. This is 7681114237Snjlbasically the "compatibility mode" because by using this option, 7682114237Snjlthe AML code will come out exactly the same as other ASL 7683114237Snjlcompilers. 7684102550Siwasaki 7685114237SnjlAdded error messages for incorrectly ordered dependent resource 7686114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 7687114237Snjldependent resource list, nested dependent function macros (both 7688114237Snjlstart and end), and missing StartDependentFn macro. These are 7689114237Snjlcommon errors that should be caught at compile time. 7690102550Siwasaki 7691114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 7692114237Snjlmust be included in the namespace for proper disassembly (because 7693114237Snjlthe disassembler must know the number of arguments.) 7694102550Siwasaki 7695104470SiwasakiAdded an "optimization" message type that is optional (off by 7696114237Snjldefault). This message is used for all optimizations - including 7697193267Sjkimconstant folding, integer optimization, and namepath optimization. 7698102550Siwasaki 7699102550Siwasaki---------------------------------------- 7700102550Siwasaki25 July 2002. Summary of changes for this release. 7701102550Siwasaki 7702102550Siwasaki 7703102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 7704102550Siwasaki 7705114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 7706193267Sjkimcode and has been integrated into the iASL compiler (see below) as 7707126372Snjlwell as the single-step disassembly for the AML debugger and the 7708126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 7709126372Snjlresource templates and macros are fully supported. The 7710114237Snjldisassembler has been tested on over 30 different AML files, 7711114237Snjlproducing identical AML when the resulting disassembled ASL file 7712114237Snjlis recompiled with the same ASL compiler. 7713102550Siwasaki 7714114237SnjlModified the Resource Manager to allow zero interrupts and zero 7715114237Snjldma channels during the GetCurrentResources call. This was 7716114237Snjlcausing problems on some platforms. 7717102550Siwasaki 7718114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 7719114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 7720114237Snjlinterfaces. 7721102550Siwasaki 7722193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7723126372Snjlbelow. These are the code and data sizes for the acpica.lib 7724126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7725126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7726126372Snjlversion of the code includes the debug output trace mechanism and 7727193267Sjkimhas a larger code and data size. Note that these values will vary 7728126372Snjldepending on the efficiency of the compiler and the compiler 7729126372Snjloptions used during generation. 7730102550Siwasaki 7731102550Siwasaki Previous Release 7732104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7733104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7734102550Siwasaki Current Release: 7735104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7736104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7737102550Siwasaki 7738102550Siwasaki 7739102550Siwasaki2) Linux 7740102550Siwasaki 7741102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 7742102550Siwasaki 7743114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 7744114237Snjl(Richard Schaal) 7745102550Siwasaki 7746102550Siwasaki 7747102550Siwasaki3) iASL compiler 7748102550Siwasaki 7749114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 7750114237Snjloption invokes the disassembler to completely disassemble an 7751114237Snjlinput AML file, producing as output a text ASL file with the 7752114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 7753114237Snjlsource files.) A future enhancement will allow the disassembler 7754114237Snjlto obtain the BIOS DSDT from the registry under Windows. 7755102550Siwasaki 7756102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 7757102550Siwasakidescriptors where an invalid AML sequence was created. 7758102550Siwasaki 7759114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 7760114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 7761114237Snjlcausing reduction conflicts. 7762102550Siwasaki 7763104470SiwasakiFixed a problem where the Ones opcode could get converted to a 7764193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 7765126372Snjlwas expected. The 64-bit value is now truncated to the correct 7766126372Snjlsize with the correct value. 7767102550Siwasaki 7768102550Siwasaki 7769167802Sjkim 7770102550Siwasaki---------------------------------------- 7771102550Siwasaki02 July 2002. Summary of changes for this release. 7772102550Siwasaki 7773102550Siwasaki 7774102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 7775102550Siwasaki 7776114237SnjlThe Table Manager code has been restructured to add several new 7777114237Snjlfeatures. Tables that are not required by the core subsystem 7778114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 7779193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 7780126372Snjlrequested. The AcpiOsTableOverride interface is now called for 7781126372Snjleach table that is loaded by the subsystem in order to allow the 7782126372Snjlhost to override any table it chooses. Previously, only the DSDT 7783126372Snjlcould be overridden. Added one new files, tbrsdt.c and 7784114237Snjltbgetall.c. 7785102550Siwasaki 7786193267SjkimFixed a problem with the conversion of internal package objects to 7787126372Snjlexternal objects (when a package is returned from a control 7788114237Snjlmethod.) The return buffer length was set to zero instead of the 7789114237Snjlproper length of the package object. 7790102550Siwasaki 7791104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 7792114237Snjloperators when passing reference arguments to control methods. A 7793114237Snjlnew type of Reference object is used internally for references 7794114237Snjlproduced by the RefOf operator. 7795102550Siwasaki 7796193267SjkimAdded additional error messages in the Resource Manager to explain 7797126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 7798102550Siwasaki 7799104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 7800193267Sjkimfiner granularity initialization sequence. These two calls should 7801126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 7802114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 7803114237Snjlsame. 7804102550Siwasaki 7805102550Siwasaki 7806102550Siwasaki2) Linux 7807102550Siwasaki 7808114237SnjlUpdated the ACPI utilities module to understand the new style of 7809193267Sjkimfully resolved package objects that are now returned from the core 7810126372Snjlsubsystem. This eliminates errors of the form: 7811102550Siwasaki 7812102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 7813102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 7814102550Siwasaki Invalid element in package (not a device reference) 7815102550Siwasaki 7816102550SiwasakiThe method evaluation utility uses the new buffer allocation 7817102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 7818102550Siwasaki 7819102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 7820167802Sjkim 7821114237SnjlController before the namespace has been fully initialized, which 7822114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 7823114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 7824114237Snjllimited testing was performed of the added functionality.) 7825102550Siwasaki 7826102550SiwasakiFixed memory leaks in the EC driver. 7827102550Siwasaki 7828102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 7829102550Siwasaki 7830114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 7831114237Snjlno longer needed since acpi_evaluate_object can optionally 7832104470Siwasakiallocate memory for the return object. 7833102550Siwasaki 7834193267SjkimImplemented fix for keyboard hang when getting battery readings on 7835126372Snjlsome systems (Stephen White) 7836102550Siwasaki 7837102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 7838102550Siwasaki 7839114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 7840114237Snjlsupport 7841102550Siwasaki 7842102550Siwasaki---------------------------------------- 7843102550Siwasaki11 June 2002. Summary of changes for this release. 7844102550Siwasaki 7845102550Siwasaki 7846102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 7847102550Siwasaki 7848104470SiwasakiFixed a reported problem where constants such as Zero and One 7849114237Snjlappearing within _PRT packages were not handled correctly within 7850114237Snjlthe resource manager code. Originally reported against the ASL 7851114237Snjlcompiler because the code generator now optimizes integers to 7852193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 7853126372SnjlThe _PRT code now handles all AML constant opcodes correctly 7854126372Snjl(Zero, One, Ones, Revision). 7855102550Siwasaki 7856102550SiwasakiFixed a problem with the Concatenate operator in the AML 7857193267Sjkiminterpreter where a buffer result object was incorrectly marked as 7858126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 7859102550Siwasaki 7860104470SiwasakiAll package sub-objects are now fully resolved before they are 7861114237Snjlreturned from the external ACPI interfaces. This means that name 7862114237Snjlstrings are resolved to object handles, and constant operators 7863114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 7864102550Siwasaki 7865102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 7866104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 7867104470Siwasakiwithin the AML stream. This has simplified and reduced the 7868104470Siwasakigenerated code size of the subsystem by eliminating about 10 7869104470Siwasakiswitch statements for these constants (which previously were 7870193267Sjkimcontained in Reference objects.) The complicating issues are that 7871126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 7872193267Sjkimoptional target operands and stores to constants are defined to be 7873126372Snjlno-ops. 7874102550Siwasaki 7875193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7876126372Snjlbelow. These are the code and data sizes for the acpica.lib 7877114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7878114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7879114237Snjlversion of the code includes the debug output trace mechanism and 7880193267Sjkimhas a larger code and data size. Note that these values will vary 7881126372Snjldepending on the efficiency of the compiler and the compiler 7882114237Snjloptions used during generation. 7883102550Siwasaki 7884102550Siwasaki Previous Release 7885104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7886104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7887102550Siwasaki Current Release: 7888104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7889104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7890102550Siwasaki 7891102550Siwasaki 7892102550Siwasaki2) Linux 7893102550Siwasaki 7894167802Sjkim 7895104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 7896104470Siwasakibridges (Bjorn Helgaas). 7897102550Siwasaki 7898102550Siwasaki 7899102550Siwasaki3) iASL Compiler Version X2046: 7900102550Siwasaki 7901193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 7902126372Snjlcontrol method with one argument. There are no arguments, and 7903114237Snjl_DDN does not have to be a control method. 7904102550Siwasaki 7905114237SnjlFixed a problem with the Linux version of the compiler where the 7906114237Snjlsource lines printed with error messages were the wrong lines. 7907114237SnjlThis turned out to be the "LF versus CR/LF" difference between 7908114237SnjlWindows and Unix. This appears to be the longstanding issue 7909114237Snjlconcerning listing output and error messages. 7910102550Siwasaki 7911114237SnjlFixed a problem with the Linux version of compiler where opcode 7912114237Snjlnames within error messages were wrong. This was caused by a 7913114237Snjlslight difference in the output of the Flex tool on Linux versus 7914114237SnjlWindows. 7915102550Siwasaki 7916193267SjkimFixed a problem with the Linux compiler where the hex output files 7917126372Snjlcontained some garbage data caused by an internal buffer overrun. 7918102550Siwasaki 7919102550Siwasaki 7920102550Siwasaki---------------------------------------- 7921102550Siwasaki17 May 2002. Summary of changes for this release. 7922102550Siwasaki 7923102550Siwasaki 7924102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 7925102550Siwasaki 7926102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 7927104470SiwasakiOmniBook where the FADT revision number and the table size are 7928193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 7929126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 7930126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 7931126372Snjlby the revision number. Although this is a BIOS bug, this is a 7932126372Snjlcase where the workaround is simple enough and with no side 7933126372Snjleffects, so it seemed prudent to add it. A warning message is 7934126372Snjlissued, however. 7935102550Siwasaki 7936193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 7937126372Snjl- the FADT and FACS, as well as consistency checks between the 7938114237Snjlrevision number and the table size. 7939102550Siwasaki 7940114237SnjlFixed a reported problem in the table override support where the 7941114237Snjlnew table pointer was incorrectly treated as a physical address 7942114237Snjlinstead of a logical address. 7943102550Siwasaki 7944114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 7945114237Snjlwith more descriptive codes. 7946102550Siwasaki 7947193267SjkimFixed a problem where an exception would occur if an ASL Field was 7948126372Snjldefined with no named Field Units underneath it (used by some 7949114237Snjlindex fields). 7950102550Siwasaki 7951193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7952126372Snjlbelow. These are the code and data sizes for the acpica.lib 7953126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7954126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7955126372Snjlversion of the code includes the debug output trace mechanism and 7956193267Sjkimhas a larger code and data size. Note that these values will vary 7957126372Snjldepending on the efficiency of the compiler and the compiler 7958126372Snjloptions used during generation. 7959102550Siwasaki 7960102550Siwasaki Previous Release 7961104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7962104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7963102550Siwasaki Current Release: 7964104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7965104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7966102550Siwasaki 7967102550Siwasaki 7968102550Siwasaki 7969102550Siwasaki2) Linux 7970102550Siwasaki 7971114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 7972114237Snjl(Paul D. and Dominik Brodowski) 7973102550Siwasaki 7974102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 7975102550Siwasaki 7976102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 7977102550Siwasaki 7978102550SiwasakiFix "MHz" typo (Dominik Brodowski) 7979102550Siwasaki 7980102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 7981102550Siwasaki 7982102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 7983102550Siwasaki 7984102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 7985102550Siwasaki 7986102550Siwasaki3) iASL Compiler Version X2044: 7987102550Siwasaki 7988193267SjkimImplemented error checking for the string used in the EISAID macro 7989193267Sjkim(Usually used in the definition of the _HID object.) The code now 7990126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 7991126372Snjluppercase letters and 4 hex digits. 7992102550Siwasaki 7993102550SiwasakiIf a raw string is used in the definition of the _HID object 7994102550Siwasaki(instead of the EISAID macro), the string must contain all 7995114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 7996114237Snjlof the asterisk.) 7997102550Siwasaki 7998114237SnjlImplemented checking for invalid use of ACPI reserved names for 7999114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 8000114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 8001114237SnjlPreviously, this check was only performed for control methods. 8002102550Siwasaki 8003114237SnjlImplemented an additional check on the Name operator to emit an 8004114237Snjlerror if a reserved name that must be implemented in ASL as a 8005114237Snjlcontrol method is used. We know that a reserved name must be a 8006114237Snjlmethod if it is defined with input arguments. 8007102550Siwasaki 8008193267SjkimThe warning emitted when a namespace object reference is not found 8009126372Snjlduring the cross reference phase has been changed into an error. 8010193267SjkimThe "External" directive should be used for names defined in other 8011126372Snjlmodules. 8012102550Siwasaki 8013102550Siwasaki 8014102550Siwasaki4) Tools and Utilities 8015102550Siwasaki 8016114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 8017114237Snjltested. 8018102550Siwasaki 8019193267SjkimFixed a problem with the output of both acpidump and adump16 where 8020126372Snjlthe indentation of closing parentheses and brackets was not 8021167802Sjkim 8022114237Snjlaligned properly with the parent block. 8023102550Siwasaki 8024102550Siwasaki 8025102550Siwasaki---------------------------------------- 8026102550Siwasaki03 May 2002. Summary of changes for this release. 8027102550Siwasaki 8028102550Siwasaki 8029102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 8030102550Siwasaki 8031114237SnjlAdded support a new OSL interface that allows the host operating 8032167802Sjkim 8033114237Snjlsystem software to override the DSDT found in the firmware - 8034193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 8035126372Snjlversion of the firmware DSDT and replace it with a different one 8036126372Snjlif desired. 8037102550Siwasaki 8038114237SnjlAdded new external interfaces for accessing ACPI registers from 8039114237Snjldevice drivers and other system software - AcpiGetRegister and 8040114237SnjlAcpiSetRegister. This was simply an externalization of the 8041114237Snjlexisting AcpiHwBitRegister interfaces. 8042102550Siwasaki 8043104470SiwasakiFixed a regression introduced in the previous build where the 8044104470SiwasakiASL/AML CreateField operator always returned an error, 8045102550Siwasaki"destination must be a NS Node". 8046102550Siwasaki 8047114237SnjlExtended the maximum time (before failure) to successfully enable 8048114237SnjlACPI mode to 3 seconds. 8049102550Siwasaki 8050193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8051126372Snjlbelow. These are the code and data sizes for the acpica.lib 8052126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8053126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8054126372Snjlversion of the code includes the debug output trace mechanism and 8055193267Sjkimhas a larger code and data size. Note that these values will vary 8056126372Snjldepending on the efficiency of the compiler and the compiler 8057126372Snjloptions used during generation. 8058102550Siwasaki 8059102550Siwasaki Previous Release 8060104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8061104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8062102550Siwasaki Current Release: 8063104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 8064104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 8065102550Siwasaki 8066102550Siwasaki 8067102550Siwasaki2) Linux 8068102550Siwasaki 8069104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 8070193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 8071126372Snjlone still hangs when testing the LAPIC timer. 8072102550Siwasaki 8073114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 8074114237Snjlname. 8075102550Siwasaki 8076102550SiwasakiAdded warning on boot for Presario 711FR. 8077102550Siwasaki 8078102550SiwasakiSleep improvements (Pavel Machek) 8079102550Siwasaki 8080102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 8081102550Siwasaki 8082102550SiwasakiIA64: Fixed memory map functions (JI Lee) 8083102550Siwasaki 8084102550Siwasaki 8085102550Siwasaki3) iASL Compiler Version X2043: 8086102550Siwasaki 8087114237SnjlAdded support to allow the compiler to be integrated into the MS 8088114237SnjlVC++ development environment for one-button compilation of single 8089114237Snjlfiles or entire projects -- with error-to-source-line mapping. 8090102550Siwasaki 8091104470SiwasakiImplemented support for compile-time constant folding for the 8092104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 8093104470Siwasakispecification. This allows the ASL writer to use expressions 8094104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 8095114237Snjlevaluate to constants at compile time and will also simplify the 8096114237Snjlemitted AML in any such sub-expressions that can be folded 8097104470Siwasaki(evaluated at compile-time.) This increases the size of the 8098104470Siwasakicompiler significantly because a portion of the ACPI CA AML 8099104470Siwasakiinterpreter is included within the compiler in order to pre- 8100104470Siwasakievaluate constant expressions. 8101102550Siwasaki 8102114237Snjl 8103102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 8104114237Snjlcompiler to fault. (This macro is used in conjunction with the 8105114237Snjl_STR reserved name.) 8106102550Siwasaki 8107114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 8108114237SnjlOnes opcodes where possible to further reduce the size of integer 8109114237Snjlconstants and thus reduce the overall size of the generated AML 8110114237Snjlcode. 8111102550Siwasaki 8112193267SjkimImplemented error checking for new reserved terms for ACPI version 8113126372Snjl2.0A. 8114102550Siwasaki 8115104470SiwasakiImplemented the -qr option to display the current list of ACPI 8116104470Siwasakireserved names known to the compiler. 8117102550Siwasaki 8118104470SiwasakiImplemented the -qc option to display the current list of ASL 8119104470Siwasakioperators that are allowed within constant expressions and can 8120193267Sjkimtherefore be folded at compile time if the operands are constants. 8121102550Siwasaki 8122102550Siwasaki 8123102550Siwasaki4) Documentation 8124102550Siwasaki 8125193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 8126126372Snjland memory allocation model options. 8127102550Siwasaki 8128114237SnjlUpdated the iASL Compiler User Reference to apply new format and 8129114237Snjladd information about new features and options. 8130102550Siwasaki 8131102550Siwasaki---------------------------------------- 8132102550Siwasaki19 April 2002. Summary of changes for this release. 8133102550Siwasaki 8134102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 8135102550Siwasaki 8136114237SnjlThe source code base for the Core Subsystem has been completely 8137114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 8138114237Snjlversions. The Lint option files used are included in the 8139114237Snjl/acpi/generate/lint directory. 8140102550Siwasaki 8141102550SiwasakiImplemented enhanced status/error checking across the entire 8142114237SnjlHardware manager subsystem. Any hardware errors (reported from 8143114237Snjlthe OSL) are now bubbled up and will abort a running control 8144114237Snjlmethod. 8145102550Siwasaki 8146167802Sjkim 8147114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 8148114237Snjlwas stored only with control method nodes, causing a fault when 8149114237Snjlnon-control method code was executed during table loading. The 8150114237Snjlsolution implemented uses a global variable to indicate table 8151114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 8152114237Snjlnot support mixed integer widths across different ACPI tables 8153114237Snjl(DSDT, SSDT). 8154102550Siwasaki 8155114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 8156114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 8157114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 8158114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 8159193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 8160193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 8161126372Snjlclarify this issue. 8162102550Siwasaki 8163104470SiwasakiFixed a problem with the SystemMemory operation region handler 8164104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 8165104470Siwasakispecified access width was larger than a byte. This caused 8166104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 8167193267Sjkimaccessed with the width specified. On systems that do not support 8168193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 8169126372Snjlalignment before proceeding in order to avoid an AML-caused 8170126372Snjlalignment fault within the kernel. 8171102550Siwasaki 8172102550Siwasaki 8173114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 8174114237Snjlof the 4-byte Irq field was extracted. 8175102550Siwasaki 8176114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 8177114237Snjlfunction was out of date and required a rewrite. 8178114237Snjl 8179193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8180126372Snjlbelow. These are the code and data sizes for the acpica.lib 8181126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8182126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8183126372Snjlversion of the code includes the debug output trace mechanism and 8184193267Sjkimhas a larger code and data size. Note that these values will vary 8185126372Snjldepending on the efficiency of the compiler and the compiler 8186126372Snjloptions used during generation. 8187102550Siwasaki 8188102550Siwasaki Previous Release 8189104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8190104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8191102550Siwasaki Current Release: 8192104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8193104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8194102550Siwasaki 8195102550Siwasaki 8196102550Siwasaki2) Linux 8197102550Siwasaki 8198102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 8199102550Siwasaki 8200102550Siwasaki 8201102550Siwasaki3) iASL Compiler Version X2042: 8202102550Siwasaki 8203104470SiwasakiImplemented an additional compile-time error check for a field 8204104470Siwasakiunit whose size + minimum access width would cause a run-time 8205114237Snjlaccess beyond the end-of-region. Previously, only the field size 8206114237Snjlitself was checked. 8207102550Siwasaki 8208104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 8209104470Siwasakiobject in preparation for compile-time evaluation of the type 8210104470Siwasaki3/4/5 ASL operators. 8211102550Siwasaki 8212102550Siwasaki 8213102550Siwasaki---------------------------------------- 8214102550SiwasakiSummary of changes for this release: 03_29_02 8215102550Siwasaki 8216102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 8217102550Siwasaki 8218104470SiwasakiImplemented support for late evaluation of TermArg operands to 8219193267SjkimBuffer and Package objects. This allows complex expressions to be 8220126372Snjlused in the declarations of these object types. 8221102550Siwasaki 8222193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 8223126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 8224126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 8225193267Sjkimthe field is returned as a buffer only if the field is larger than 8226126372Snjl64 bits. The TableRevision is now considered when making this 8227126372Snjlconversion to avoid incompatibility with existing ASL code. 8228102550Siwasaki 8229104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 8230114237Snjlallows an RSDP with either a logical or physical address. With 8231114237Snjlthis support, the host OS can now override all ACPI tables with 8232114237Snjlone logical RSDP. Includes implementation of "typed" pointer 8233114237Snjlsupport to allow a common data type for both physical and logical 8234114237Snjlpointers internally. This required a change to the 8235114237SnjlAcpiOsGetRootPointer interface. 8236102550Siwasaki 8237193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 8238193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 8239126372Snjlmapped I/O for these ACPI features. 8240102550Siwasaki 8241102550SiwasakiInitialization now ignores not only non-required tables (All 8242114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 8243114237Snjlnot validate the table headers of unrecognized tables. 8244102550Siwasaki 8245102550SiwasakiFixed a problem where a notify handler could only be 8246102550Siwasakiinstalled/removed on an object of type Device. All "notify" 8247167802Sjkim 8248102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 8249102550SiwasakiThermal. 8250102550Siwasaki 8251114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 8252193267Sjkimcritical information is returned when this debug level is enabled. 8253102550Siwasaki 8254193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8255126372Snjlbelow. These are the code and data sizes for the acpica.lib 8256126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8257126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8258126372Snjlversion of the code includes the debug output trace mechanism and 8259193267Sjkimhas a larger code and data size. Note that these values will vary 8260126372Snjldepending on the efficiency of the compiler and the compiler 8261126372Snjloptions used during generation. 8262102550Siwasaki 8263102550Siwasaki Previous Release 8264104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8265104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8266102550Siwasaki Current Release: 8267104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8268104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8269102550Siwasaki 8270102550Siwasaki 8271102550Siwasaki2) Linux: 8272102550Siwasaki 8273114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 8274114237Snjl2.0-based processor performance control (e.g. Intel(R) 8275114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 8276114237Snjlthe Intel "applet" interface are not supported through this. The 8277114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 8278114237Snjl[Note that basic policy for controlling performance state 8279114237Snjltransitions will be included in the next version of ospmd.] The 8280114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 8281114237Snjlerrata handling underwent a complete overhaul (big thanks to 8282114237SnjlDominik Brodowski). 8283102550Siwasaki 8284114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 8285114237Snjlbased devices in the ACPI namespace are now dynamically bound 8286114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 8287114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 8288114237Snjlsubordinate PCI bridges. 8289102550Siwasaki 8290104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 8291104470Siwasakientries defined underneath PCI bridges. 8292102550Siwasaki 8293104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 8294104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 8295102550Siwasaki 8296114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 8297114237Snjl(acpi.c, mpparse.c) -- stay tuned. 8298102550Siwasaki 8299102550SiwasakiAdded back visual differentiation between fixed-feature and 8300114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 8301114237Snjlbutton/power/PWRF) to simplify button identification. 8302102550Siwasaki 8303114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 8304114237Snjlany "_THIS_MODULE defined but not used" messages. 8305102550Siwasaki 8306102550SiwasakiCan now shut down the system using "magic sysrq" key. 8307102550Siwasaki 8308102550Siwasaki 8309102550Siwasaki3) iASL Compiler version 2041: 8310102550Siwasaki 8311104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 8312104470Siwasakiconstants were not reported. 8313102550Siwasaki 8314193267SjkimImplemented a fix for the General Register template Address field. 8315126372SnjlThis field was 8 bits when it should be 64. 8316102550Siwasaki 8317193267SjkimFixed a problem where errors/warnings were no longer being emitted 8318126372Snjlwithin the listing output file. 8319102550Siwasaki 8320114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 8321114237Snjlexactly 4 characters, alphanumeric only. 8322102550Siwasaki 8323102550Siwasaki 8324102550Siwasaki 8325102550Siwasaki 8326102550Siwasaki---------------------------------------- 8327102550SiwasakiSummary of changes for this release: 03_08_02 8328102550Siwasaki 8329102550Siwasaki 8330102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 8331102550Siwasaki 8332114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 8333193267Sjkimkeyword could cause an interpreter error due to attempting to read 8334126372Snjlor write beyond the end of the parent Operation Region. 8335102550Siwasaki 8336193267SjkimFixed a problem in the SystemMemory Operation Region handler where 8337126372Snjlan attempt was made to map memory beyond the end of the region. 8338126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 8339126372Snjlerrors on some Linux systems. 8340102550Siwasaki 8341114237SnjlFixed a problem where the interpreter/namespace "search to root" 8342114237Snjlalgorithm was not functioning for some object types. Relaxed the 8343114237Snjlinternal restriction on the search to allow upsearches for all 8344114237Snjlexternal object types as well as most internal types. 8345102550Siwasaki 8346102550Siwasaki 8347102550Siwasaki2) Linux: 8348102550Siwasaki 8349193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 8350102550Siwasaki 8351193267SjkimWriting to the processor limit interface should now work. "echo 1" 8352126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 8353167802Sjkim 8354126372Snjldefault. 8355102550Siwasaki 8356102550Siwasaki 8357102550Siwasaki3) ASL compiler: 8358102550Siwasaki 8359102550SiwasakiFixed segfault on Linux version. 8360102550Siwasaki 8361102550Siwasaki 8362102550Siwasaki---------------------------------------- 8363102550SiwasakiSummary of changes for this release: 02_25_02 8364102550Siwasaki 8365102550Siwasaki1) ACPI CA Core Subsystem: 8366102550Siwasaki 8367102550Siwasaki 8368102550SiwasakiFixed a problem where the GPE bit masks were not initialized 8369102550Siwasakiproperly, causing erratic GPE behavior. 8370102550Siwasaki 8371193267SjkimImplemented limited support for multiple calling conventions. The 8372126372Snjlcode can be generated with either the VPL (variable parameter 8373114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 8374114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 8375114237Snjlwhen generated with FPL. 8376102550Siwasaki 8377102550Siwasaki 8378102550Siwasaki2) Linux 8379102550Siwasaki 8380114237SnjlRe-add some /proc/acpi/event functionality that was lost during 8381114237Snjlthe rewrite 8382102550Siwasaki 8383193267SjkimResolved issue with /proc events for fixed-feature buttons showing 8384126372Snjlup as the system device. 8385102550Siwasaki 8386193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 8387102550Siwasaki 8388114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 8389102550Siwasaki 8390114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 8391102550Siwasaki 8392104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 8393104470Siwasakihysterisis. 8394102550Siwasaki 8395102550SiwasakiRestructured PRT support. 8396102550Siwasaki 8397102550Siwasaki 8398102550Siwasaki---------------------------------------- 8399102550SiwasakiSummary of changes for this label: 02_14_02 8400102550Siwasaki 8401102550Siwasaki 8402102550Siwasaki1) ACPI CA Core Subsystem: 8403102550Siwasaki 8404114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 8405114237SnjlFADT tables. 8406102550Siwasaki 8407114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 8408193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 8409193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 8410126372Snjltree. 8411102550Siwasaki 8412114237SnjlAll C macros defined within the subsystem have been prefixed with 8413114237Snjl"ACPI_" to avoid collision with other system include files. 8414102550Siwasaki 8415193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 8416126372Snjlit is never used and causes lint warnings for ignoring the return 8417126372Snjlvalue. 8418102550Siwasaki 8419104470SiwasakiAdded error checking to all internal mutex acquire and release 8420104470Siwasakicalls. Although a failure from one of these interfaces is 8421104470Siwasakiprobably a fatal system error, these checks will cause the 8422114237Snjlimmediate abort of the currently executing method or interface. 8423102550Siwasaki 8424114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 8425193267Sjkimfault. This was a side effect of the deployment of the new memory 8426126372Snjlallocation model. 8427102550Siwasaki 8428193267SjkimFixed a couple of problems with the Global Lock support introduced 8429193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 8430126372Snjlbeing overwritten with the FACS signature and clobbering the 8431126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 8432126372Snjlunmapped after construction of the "common" FACS, preventing 8433126372Snjlaccess to the actual Global Lock field within it. The "common" 8434126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 8435126372Snjlis used simply as a global. 8436102550Siwasaki 8437193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8438126372Snjlbelow. These are the code and data sizes for the acpica.lib 8439126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8440126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8441126372Snjlversion of the code includes the debug output trace mechanism and 8442193267Sjkimhas a larger code and data size. Note that these values will vary 8443126372Snjldepending on the efficiency of the compiler and the compiler 8444126372Snjloptions used during generation. 8445102550Siwasaki 8446102550Siwasaki Previous Release (02_07_01) 8447104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8448104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8449102550Siwasaki Current Release: 8450104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8451104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8452102550Siwasaki 8453102550Siwasaki 8454102550Siwasaki2) Linux 8455102550Siwasaki 8456102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 8457102550Siwasakichanges described above. 8458102550Siwasaki 8459114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 8460114237Snjlproper poll functionality. 8461102550Siwasaki 8462102550SiwasakiFixed and restructured power management (acpi_bus). 8463102550Siwasaki 8464193267SjkimOnly create /proc "view by type" when devices of that class exist. 8465102550Siwasaki 8466104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 8467102550Siwasaki 8468102550SiwasakiImproved thermal zone code. 8469102550Siwasaki 8470102550Siwasaki 8471102550Siwasaki3) ASL Compiler, version X2039: 8472102550Siwasaki 8473114237Snjl 8474114237SnjlImplemented the new compiler restriction on ASL String hex/octal 8475193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 8476126372Snjlvalue is used. (This will require an ACPI 2.0 specification 8477126372Snjlchange.) 8478102550Siwasaki 8479193267SjkimAML object labels that are output to the optional C and ASM source 8480126372Snjlare now prefixed with both the ACPI table signature and table ID 8481126372Snjlto help guarantee uniqueness within a large BIOS project. 8482102550Siwasaki 8483102550Siwasaki 8484102550Siwasaki---------------------------------------- 8485102550SiwasakiSummary of changes for this label: 02_01_02 8486102550Siwasaki 8487102550Siwasaki1) ACPI CA Core Subsystem: 8488102550Siwasaki 8489114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 8490114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 8491114237Snjlother changes for ACPI 2.0 support are complete. With 8492193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 8493126372SnjlACPI 2.0 support has been implemented with almost no additional 8494126372Snjlcost in terms of code and data size. 8495102550Siwasaki 8496114237SnjlImplemented a new mechanism for allocation of return buffers. If 8497114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 8498114237Snjlbe allocated on behalf of the caller. Consolidated all return 8499114237Snjlbuffer validation and allocation to a common procedure. Return 8500193267Sjkimbuffers will be allocated via the primary OSL allocation interface 8501193267Sjkimsince it appears that a separate pool is not needed by most users. 8502126372SnjlIf a separate pool is required for these buffers, the caller can 8503126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 8504102550Siwasaki 8505102550SiwasakiImplemented support for string operands within the DerefOf 8506102550Siwasakioperator. 8507102550Siwasaki 8508114237SnjlRestructured the Hardware and Event managers to be table driven, 8509114237Snjlsimplifying the source code and reducing the amount of generated 8510114237Snjlcode. 8511102550Siwasaki 8512102550SiwasakiSplit the common read/write low-level ACPI register bitfield 8513104470Siwasakiprocedure into a separate read and write, simplifying the code 8514104470Siwasakiconsiderably. 8515102550Siwasaki 8516114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 8517114237Snjlused only a handful of times and didn't have enough critical mass 8518193267Sjkimfor a separate interface. Replaced with a common calloc procedure 8519126372Snjlin the core. 8520102550Siwasaki 8521104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 8522104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 8523114237SnjlReorganized the GPE information and shrunk a large array that was 8524114237Snjloriginally large enough to hold info for all possible GPEs (256) 8525114237Snjlto simply large enough to hold all GPEs up to the largest GPE 8526114237Snjlnumber on the machine. 8527102550Siwasaki 8528114237SnjlFixed a reported problem with resource structure alignment on 64- 8529114237Snjlbit platforms. 8530102550Siwasaki 8531102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 8532102550Siwasakiinterfaces to not require any flags for the common case of 8533102550Siwasakienabling/disabling a GPE. 8534102550Siwasaki 8535104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 8536102550Siwasaki 8537114237SnjlMost TBDs in comments within the source code have been resolved 8538114237Snjland eliminated. 8539102550Siwasaki 8540167802Sjkim 8541102550SiwasakiFixed a problem in the interpreter where a standalone parent 8542102550Siwasakiprefix (^) was not handled correctly in the interpreter and 8543102550Siwasakidebugger. 8544102550Siwasaki 8545102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 8546102550Siwasaki 8547193267SjkimImplemented Field support in the ASL Load operator. This allows a 8548126372Snjltable to be loaded from a named field, in addition to loading a 8549114237Snjltable directly from an Operation Region. 8550102550Siwasaki 8551193267SjkimImplemented timeout and handle support in the external Global Lock 8552126372Snjlinterfaces. 8553102550Siwasaki 8554114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 8555193267Sjkimlonger being generated correctly during the dump of named objects. 8556102550Siwasaki 8557102550SiwasakiModified the AML debugger to give a full display of if/while 8558102550Siwasakipredicates instead of just one AML opcode at a time. (The 8559193267Sjkimpredicate can have several nested ASL statements.) The old method 8560126372Snjlwas confusing during single stepping. 8561102550Siwasaki 8562193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8563126372Snjlbelow. These are the code and data sizes for the acpica.lib 8564114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8565114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8566114237Snjlversion of the code includes the debug output trace mechanism and 8567193267Sjkimhas a larger code and data size. Note that these values will vary 8568126372Snjldepending on the efficiency of the compiler and the compiler 8569114237Snjloptions used during generation. 8570102550Siwasaki 8571102550Siwasaki Previous Release (12_18_01) 8572114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8573114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8574102550Siwasaki Current Release: 8575114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8576114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8577102550Siwasaki 8578102550Siwasaki2) Linux 8579102550Siwasaki 8580104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 8581104470Siwasakidriver) 8582102550Siwasaki 8583102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 8584102550Siwasaki 8585102550SiwasakiNew thermal policy (Thermal driver) 8586102550Siwasaki 8587102550SiwasakiMany updates to /proc 8588102550Siwasaki 8589102550SiwasakiBattery "low" event support (Battery driver) 8590102550Siwasaki 8591104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 8592102550Siwasaki 8593104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 8594102550Siwasaki 8595102550SiwasakiMenuconfig options redesigned 8596102550Siwasaki 8597102550Siwasaki3) ASL Compiler, version X2037: 8598102550Siwasaki 8599193267SjkimImplemented several new output features to simplify integration of 8600126372SnjlAML code into firmware: 1) Output the AML in C source code with 8601193267Sjkimlabels for each named ASL object. The original ASL source code 8602193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 8603126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 8604126372Snjlraw hex table form, in either C or ASM. 8605102550Siwasaki 8606102550SiwasakiImplemented support for optional string parameters to the 8607102550SiwasakiLoadTable operator. 8608102550Siwasaki 8609104470SiwasakiCompleted support for embedded escape sequences within string 8610114237Snjlliterals. The compiler now supports all single character escapes 8611114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 8612114237Snjlnull byte into a string literal (via the hex/octal escape) causes 8613114237Snjlthe string to be immediately terminated. A warning is issued. 8614102550Siwasaki 8615104470SiwasakiFixed a problem where incorrect AML was generated for the case 8616104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 8617102550Siwasaki 8618102550Siwasaki) with no trailing name segments. 8619102550Siwasaki 8620102550SiwasakiThe compiler has been successfully generated with a 64-bit C 8621102550Siwasakicompiler. 8622102550Siwasaki 8623102550Siwasaki 8624102550Siwasaki 8625102550Siwasaki 8626102550Siwasaki---------------------------------------- 8627102550SiwasakiSummary of changes for this label: 12_18_01 8628102550Siwasaki 8629102550Siwasaki1) Linux 8630102550Siwasaki 8631114237SnjlEnhanced blacklist with reason and severity fields. Any table's 8632114237Snjlsignature may now be used to identify a blacklisted system. 8633102550Siwasaki 8634114237SnjlCall _PIC control method to inform the firmware which interrupt 8635114237Snjlmodel the OS is using. Turn on any disabled link devices. 8636102550Siwasaki 8637102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 8638102550Siwasaki 8639102550Siwasaki 2) ACPI CA Core Subsystem: 8640102550Siwasaki 8641193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 8642126372Snjlwhile loop) 8643102550Siwasaki 8644102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 8645102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 8646193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 8647193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 8648126372Snjl2.0 task is support for the String data type in the DerefOf 8649193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 8650126372Snjlwas lost if the caller had to actually wait for the mutex. 8651102550Siwasaki 8652104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 8653102550Siwasaki 8654193267SjkimCompleted implementation of the external Global Lock interfaces -- 8655126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 8656126372SnjlHandler parameters were added. 8657102550Siwasaki 8658102550SiwasakiCompleted another pass at removing warnings and issues when 8659114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 8660114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 8661114237Snjladd and subtract (diff) macros have changed considerably. 8662102550Siwasaki 8663167802Sjkim 8664114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 8665114237Snjl64-bit platforms, 32-bits on all others. This type is used 8666193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 8667126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 8668126372Snjland AcpiOsCallocate. 8669102550Siwasaki 8670102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 8671102550Siwasaki 8672193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8673126372Snjlbelow. These are the code and data sizes for the acpica.lib 8674114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8675114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8676114237Snjlversion of the code includes the debug output trace mechanism and 8677114237Snjlhas a larger code and data size. Note that these values will vary 8678114237Snjldepending on the efficiency of the compiler and the compiler 8679114237Snjloptions used during generation. 8680102550Siwasaki 8681102550Siwasaki Previous Release (12_05_01) 8682114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8683114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8684102550Siwasaki Current Release: 8685114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8686114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8687102550Siwasaki 8688102550Siwasaki 3) ASL Compiler, version X2034: 8689102550Siwasaki 8690114237SnjlNow checks for (and generates an error if detected) the use of a 8691114237SnjlBreak or Continue statement without an enclosing While statement. 8692102550Siwasaki 8693167802Sjkim 8694102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 8695102550Siwasakicompiler. 8696102550Siwasaki 8697102550Siwasaki ---------------------------------------- 8698102550SiwasakiSummary of changes for this label: 12_05_01 8699102550Siwasaki 8700102550Siwasaki 1) ACPI CA Core Subsystem: 8701102550Siwasaki 8702102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 8703104470Siwasakioperator creates a new copy of an object (and is also used to 8704193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 8705102550Siwasaki 8706102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 8707102550Siwasakiimplemented. The change is that performing a SizeOf on a 8708114237Snjlreference object causes an automatic dereference of the object to 8709114237Snjltha actual value before the size is evaluated. This behavior was 8710114237Snjlundefined in ACPI 1.0. 8711102550Siwasaki 8712114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 8713114237Snjlhave been implemented. The interrupt polarity and mode are now 8714114237Snjlindependently set. 8715102550Siwasaki 8716114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 8717114237Snjlappearing in Package objects were not properly converted to 8718114237Snjlintegers when the internal Package was converted to an external 8719114237Snjlobject (via the AcpiEvaluateObject interface.) 8720102550Siwasaki 8721114237SnjlFixed a problem with the namespace object deletion mechanism for 8722114237Snjlobjects created by control methods. There were two parts to this 8723193267Sjkimproblem: 1) Objects created during the initialization phase method 8724193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 8725126372Snjlto track objects was broken. 8726102550Siwasaki 8727114237SnjlFixed a problem where the use of the ASL Scope operator within a 8728114237Snjlcontrol method would result in an invalid opcode exception. 8729102550Siwasaki 8730114237SnjlFixed a problem introduced in the previous label where the buffer 8731114237Snjllength required for the _PRT structure was not being returned 8732114237Snjlcorrectly. 8733102550Siwasaki 8734193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8735126372Snjlbelow. These are the code and data sizes for the acpica.lib 8736114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8737114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8738114237Snjlversion of the code includes the debug output trace mechanism and 8739193267Sjkimhas a larger code and data size. Note that these values will vary 8740126372Snjldepending on the efficiency of the compiler and the compiler 8741114237Snjloptions used during generation. 8742102550Siwasaki 8743102550Siwasaki Previous Release (11_20_01) 8744114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8745114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8746102550Siwasaki 8747102550Siwasaki Current Release: 8748114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8749114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8750102550Siwasaki 8751102550Siwasaki 2) Linux: 8752102550Siwasaki 8753102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 8754102550Siwasaki 8755104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 8756114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 8757114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 8758114237Snjlentries are treated as if they were static (not yet 8759114237Snjlreconfigurable). Architecture- specific code to use this data is 8760114237Snjlabsent on IA32 but should be available shortly. 8761102550Siwasaki 8762114237SnjlChanged the initialization sequence to start the ACPI interpreter 8763114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 8764114237Snjlin init/main.c. This ordering is required to support PRT and 8765114237Snjlfacilitate other (future) enhancement. A side effect is that the 8766193267SjkimACPI bus driver and certain device drivers can no longer be loaded 8767126372Snjlas modules. 8768102550Siwasaki 8769104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 8770104470SiwasakiRouting support to be included without the ACPI Bus and other 8771104470Siwasakidevice drivers. 8772102550Siwasaki 8773102550Siwasaki 3) ASL Compiler, version X2033: 8774102550Siwasaki 8775102550SiwasakiFixed some issues with the use of the new CopyObject and 8776102550SiwasakiDataTableRegion operators. Both are fully functional. 8777102550Siwasaki 8778102550Siwasaki ---------------------------------------- 8779102550SiwasakiSummary of changes for this label: 11_20_01 8780102550Siwasaki 8781102550Siwasaki 20 November 2001. Summary of changes for this release. 8782102550Siwasaki 8783102550Siwasaki 1) ACPI CA Core Subsystem: 8784102550Siwasaki 8785104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 8786193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 8787126372Snjlthe least-significant byte of the source to the Indexed buffer 8788126372Snjlbyte. Multiple writes are not performed. 8789102550Siwasaki 8790104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 8791104470Siwasakioperator was not recorded correctly into the field object. 8792102550Siwasaki 8793102550SiwasakiFixed a problem where ASL Event objects were created in a 8794114237Snjlsignalled state. Events are now created in an unsignalled state. 8795102550Siwasaki 8796114237SnjlThe internal object cache is now purged after table loading and 8797114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 8798114237Snjlthe assumption that object use is greatest during the parse phase 8799193267Sjkimof the entire table (versus the run-time use of individual control 8800126372Snjlmethods.) 8801102550Siwasaki 8802102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 8803102550Siwasaki 8804193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8805126372Snjlfeature development with an actual reduction in the library size. 8806126372SnjlCurrent core subsystem library sizes are shown below. These are 8807126372Snjlthe code and data sizes for the acpica.lib produced by the 8808193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8809126372Snjlany ACPI driver or OSPM code. The debug version of the code 8810126372Snjlincludes the debug output trace mechanism and has a larger code 8811126372Snjland data size. Note that these values will vary depending on the 8812126372Snjlefficiency of the compiler and the compiler options used during 8813126372Snjlgeneration. 8814102550Siwasaki 8815102550Siwasaki Previous Release (11_09_01): 8816114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8817114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8818102550Siwasaki 8819102550Siwasaki Current Release: 8820114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8821114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8822102550Siwasaki 8823102550Siwasaki 2) Linux: 8824102550Siwasaki 8825114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 8826114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 8827114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 8828114237Snjlnear future. This functionality replaces 8829114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 8830114237Snjl2.4.15-preX release. To enable this feature you must add 8831114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 8832193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 8833126372Snjlthe works... 8834102550Siwasaki 8835114237SnjlRestructured the configuration options to allow boot-time table 8836114237Snjlparsing support without inclusion of the ACPI Interpreter (and 8837114237Snjlother) code. 8838102550Siwasaki 8839193267SjkimNOTE: This release does not include fixes for the reported events, 8840126372Snjlpower-down, and thermal passive cooling issues (coming soon). 8841102550Siwasaki 8842102550Siwasaki 3) ASL Compiler: 8843102550Siwasaki 8844114237SnjlAdded additional typechecking for Fields within restricted access 8845114237SnjlOperation Regions. All fields within EC and CMOS regions must be 8846114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 8847114237Snjldeclared with the BufferAcc access type. 8848102550Siwasaki 8849114237SnjlFixed a problem where the listing file output of control methods 8850114237Snjlno longer interleaved the actual AML code with the ASL source 8851114237Snjlcode. 8852102550Siwasaki 8853102550Siwasaki 8854102550Siwasaki 8855167802Sjkim 8856102550Siwasaki---------------------------------------- 8857102550SiwasakiSummary of changes for this label: 11_09_01 8858102550Siwasaki 8859102550Siwasaki1) ACPI CA Core Subsystem: 8860102550Siwasaki 8861114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 8862193267SjkimBuffer, String, or Integer source operand that is smaller than the 8863126372Snjltarget field. In these cases, the source operand is zero-extended 8864126372Snjlto fill the target field. 8865102550Siwasaki 8866104470SiwasakiFixed a problem where a Field starting bit offset (within the 8867104470Siwasakiparent operation region) was calculated incorrectly if the 8868167802Sjkim 8869104470Siwasakialignment of the field differed from the access width. This 8870114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 8871114237Snjlpossibly other fields that use the "AccessAny" keyword. 8872102550Siwasaki 8873114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 8874114237Snjlstores through method arguments did not operate correctly. 8875102550Siwasaki 8876102550Siwasaki2) Linux: 8877102550Siwasaki 8878102550SiwasakiImplemented boot-time ACPI table parsing support 8879114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 8880114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 8881114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 8882193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 8883126372Snjlthis patch does not include the required architecture-specific 8884126372Snjlchanges required to apply this information -- subsequent patches 8885126372Snjlwill be posted for both IA32 and IA64 to achieve this. 8886102550Siwasaki 8887114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 8888114237SnjlMochel. This allows IA32 systems to transition to/from various 8889114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 8890114237Snjldriver model and power-manageable drivers will prevent its 8891114237Snjl(successful) use on most systems. 8892102550Siwasaki 8893114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 8894193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 8895126372Snjltables" option, etc. 8896102550Siwasaki 8897114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 8898114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 8899114237Snjltransactions. 8900102550Siwasaki 8901102550Siwasaki ---------------------------------------- 8902102550SiwasakiSummary of changes for this label: 11_02_01 8903102550Siwasaki 8904102550Siwasaki1) ACPI CA Core Subsystem: 8905102550Siwasaki 8906102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 8907102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 8908102550Siwasakiimplemented. 8909102550Siwasaki 8910114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 8911114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 8912193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 8913126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 8914193267Sjkimthe value parameter for the address space handler interface is now 8915193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 8916126372Snjlhandle the case where the Width parameter is 64. 8917102550Siwasaki 8918104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 8919104470Siwasakidisassembly for IndexFields was not supported correctly. 8920102550Siwasaki 8921102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 8922104470Siwasakisupported. During field access, a check is performed to ensure 8923114237Snjlthat the value written to an Index or Bank register is not out of 8924114237Snjlthe range of the register. The Index (or Bank) register is 8925114237Snjlwritten before each access to the field data. Future support will 8926114237Snjlinclude allowing individual IndexFields to be wider than the 8927114237SnjlDataRegister width. 8928102550Siwasaki 8929114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 8930114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 8931114237Snjla boundary case that occurred when a DWORD field was written to a 8932114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 8933114237Snjlinterpreter to write one datum too many. 8934102550Siwasaki 8935102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 8936114237Snjlstarting bit address of a field was incorrectly calculated if the 8937114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 8938114237SnjlQwordAcc). 8939102550Siwasaki 8940104470SiwasakiFields: Fixed a problem where forward references to individual 8941193267SjkimFieldUnits (individual Field names within a Field definition) were 8942126372Snjlnot resolved during the AML table load. 8943102550Siwasaki 8944104470SiwasakiFields: Fixed a problem where forward references from a Field 8945104470Siwasakidefinition to the parent Operation Region definition were not 8946104470Siwasakiresolved during the AML table load. 8947104470Siwasaki 8948114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 8949114237Snjlduring AML table load. 8950102550Siwasaki 8951193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 8952126372Snjlreturned an incorrect name for the root node. 8953102550Siwasaki 8954193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8955126372Snjlfeature development with an actual reduction in the library size. 8956126372SnjlCurrent core subsystem library sizes are shown below. These are 8957126372Snjlthe code and data sizes for the acpica.lib produced by the 8958193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8959126372Snjlany ACPI driver or OSPM code. The debug version of the code 8960126372Snjlincludes the debug output trace mechanism and has a larger code 8961126372Snjland data size. Note that these values will vary depending on the 8962126372Snjlefficiency of the compiler and the compiler options used during 8963126372Snjlgeneration. 8964102550Siwasaki 8965102550Siwasaki Previous Release (10_18_01): 8966114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8967114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8968102550Siwasaki 8969102550Siwasaki Current Release: 8970114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8971114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8972102550Siwasaki 8973102550Siwasaki 2) Linux: 8974102550Siwasaki 8975102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 8976102550SiwasakiMODULE_LICENSE("GPL") to all modules. 8977102550Siwasaki 8978102550Siwasaki 3) ASL Compiler version X2030: 8979102550Siwasaki 8980104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 8981104470Siwasakiflagged as errors. 8982102550Siwasaki 8983102550Siwasaki 4) Documentation: 8984102550Siwasaki 8985104470SiwasakiProgrammer Reference updated to reflect OSL and address space 8986104470Siwasakihandler interface changes described above. 8987102550Siwasaki 8988102550Siwasaki---------------------------------------- 8989102550SiwasakiSummary of changes for this label: 10_18_01 8990102550Siwasaki 8991102550SiwasakiACPI CA Core Subsystem: 8992102550Siwasaki 8993193267SjkimFixed a problem with the internal object reference count mechanism 8994126372Snjlthat occasionally caused premature object deletion. This resolves 8995126372Snjlall of the outstanding problem reports where an object is deleted 8996193267Sjkimin the middle of an interpreter evaluation. Although this problem 8997126372Snjlonly showed up in rather obscure cases, the solution to the 8998126372Snjlproblem involved an adjustment of all reference counts involving 8999126372Snjlobjects attached to namespace nodes. 9000102550Siwasaki 9001102550SiwasakiFixed a problem with Field support in the interpreter where 9002114237Snjlwriting to an aligned field whose length is an exact multiple (2 9003193267Sjkimor greater) of the field access granularity would cause an attempt 9004126372Snjlto write beyond the end of the field. 9005102550Siwasaki 9006102550SiwasakiThe top level AML opcode execution functions within the 9007102550Siwasakiinterpreter have been renamed with a more meaningful and 9008102550Siwasakiconsistent naming convention. The modules exmonad.c and 9009102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 9010102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 9011102550Siwasaki 9012114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 9013102550Siwasaki 9014114237SnjlFixed a problem where the AML debugger was causing some internal 9015114237Snjlobjects to not be deleted during subsystem termination. 9016102550Siwasaki 9017104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 9018104470Siwasakiwhere the subsystem would fault if the named object to be 9019104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 9020102550Siwasaki 9021102550SiwasakiFixed a problem with IndexFields and BankFields where the 9022114237Snjlsubsystem would fault if the index, data, or bank registers were 9023114237Snjlnot defined in the same scope as the field itself. 9024102550Siwasaki 9025104470SiwasakiAdded printf format string checking for compilers that support 9026104470Siwasakithis feature. Corrected more than 50 instances of issues with 9027104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 9028104470Siwasakithroughout the core subsystem code. 9029102550Siwasaki 9030104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 9031193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 9032126372Snjlis more than 50% implemented. 9033102550Siwasaki 9034114237SnjlEnhanced the output of the AML debugger "dump namespace" command 9035114237Snjlto output in a more human-readable form. 9036102550Siwasaki 9037114237SnjlCurrent core subsystem library code sizes are shown below. These 9038167802Sjkim 9039114237Snjlare the code and data sizes for the acpica.lib produced by the 9040193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9041126372Snjlany ACPI driver or OSPM code. The debug version of the code 9042126372Snjlincludes the full debug trace mechanism -- leading to a much 9043167802Sjkim 9044114237Snjllarger code and data size. Note that these values will vary 9045114237Snjldepending on the efficiency of the compiler and the compiler 9046114237Snjloptions used during generation. 9047102550Siwasaki 9048102550Siwasaki Previous Label (09_20_01): 9049114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 9050114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 9051102550Siwasaki 9052102550Siwasaki This Label: 9053102550Siwasaki 9054114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 9055114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 9056114237Snjl 9057102550SiwasakiLinux: 9058102550Siwasaki 9059104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 9060104470Siwasakiknown ASL/AML problems. 9061102550Siwasaki 9062193267SjkimEnhanced the /proc interface for the thermal zone driver and added 9063126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 9064193267Sjkimfile now includes threshold/policy information, and allows setting 9065126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 9066193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 9067126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 9068126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 9069102550Siwasaki 9070104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 9071104470Siwasakiwhen loading the control method battery driver. 9072102550Siwasaki 9073102550Siwasaki ---------------------------------------- 9074102550SiwasakiSummary of changes for this label: 09_20_01 9075102550Siwasaki 9076102550Siwasaki ACPI CA Core Subsystem: 9077102550Siwasaki 9078104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 9079104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 9080114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 9081114237Snjlsleeps.) 9082102550Siwasaki 9083104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 9084104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 9085104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 9086104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 9087102550Siwasaki 9088114237SnjlA local double-precision divide/modulo module has been added to 9089114237Snjlenhance portability to OS kernels where a 64-bit math library is 9090114237Snjlnot available. The new module is "utmath.c". 9091102550Siwasaki 9092104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 9093114237Snjlstack. Originally over 2K, the maximum stack usage is now below 9094114237Snjl2K at 1860 bytes (1.82k) 9095102550Siwasaki 9096114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 9097193267Sjkimroot table pointer was not mapped into a logical address properly. 9098102550Siwasaki 9099193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 9100126372Snjlinterpreter code for the ASL Notify operator. 9101102550Siwasaki 9102102550SiwasakiFixed a problem where the use of the ASL Revision operator 9103114237Snjlreturned an error. This operator now returns the current version 9104114237Snjlof the ACPI CA core subsystem. 9105102550Siwasaki 9106114237SnjlFixed a problem where objects passed as control method parameters 9107114237Snjlto AcpiEvaluateObject were always deleted at method termination. 9108114237SnjlHowever, these objects may end up being stored into the namespace 9109114237Snjlby the called method. The object reference count mechanism was 9110114237Snjlapplied to these objects instead of a force delete. 9111102550Siwasaki 9112114237SnjlFixed a problem where static strings or buffers (contained in the 9113114237SnjlAML code) that are declared as package elements within the ASL 9114114237Snjlcode could cause a fault because the interpreter would attempt to 9115114237Snjldelete them. These objects are now marked with the "static 9116114237Snjlobject" flag to prevent any attempt to delete them. 9117102550Siwasaki 9118114237SnjlImplemented an interpreter optimization to use operands directly 9119114237Snjlfrom the state object instead of extracting the operands to local 9120114237Snjlvariables. This reduces stack use and code size, and improves 9121114237Snjlperformance. 9122102550Siwasaki 9123193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 9124126372Snjllayer of code. 9125102550Siwasaki 9126114237SnjlCurrent core subsystem library code sizes are shown below. These 9127114237Snjlare the code and data sizes for the acpica.lib produced by the 9128193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9129126372Snjlany ACPI driver or OSPM code. The debug version of the code 9130126372Snjlincludes the full debug trace mechanism -- leading to a much 9131114237Snjllarger code and data size. Note that these values will vary 9132114237Snjldepending on the efficiency of the compiler and the compiler 9133114237Snjloptions used during generation. 9134102550Siwasaki 9135102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 9136114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 9137114237SnjlTotal (Previously 195K) 9138102550Siwasaki 9139102550SiwasakiLinux: 9140102550Siwasaki 9141114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 9142114237SnjlInteger objects are now 64 bits wide 9143102550Siwasaki 9144114237SnjlAll Acpi data types and structures are now in lower case. Only 9145114237SnjlAcpi macros are upper case for differentiation. 9146102550Siwasaki 9147102550Siwasaki Documentation: 9148102550Siwasaki 9149102550SiwasakiChanges to the external interfaces as described above. 9150102550Siwasaki 9151102550Siwasaki ---------------------------------------- 9152102550SiwasakiSummary of changes for this label: 08_31_01 9153102550Siwasaki 9154102550Siwasaki ACPI CA Core Subsystem: 9155102550Siwasaki 9156114237SnjlA bug with interpreter implementation of the ASL Divide operator 9157114237Snjlwas found and fixed. The implicit function return value (not the 9158114237Snjlexplicit store operands) was returning the remainder instead of 9159114237Snjlthe quotient. This was a longstanding bug and it fixes several 9160114237Snjlknown outstanding issues on various platforms. 9161102550Siwasaki 9162104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 9163193267Sjkimbeen further optimized for size. There are 700 invocations of the 9164126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 9165126372Snjlthe debug version of the subsystem significantly. 9166102550Siwasaki 9167114237SnjlA stack trace mechanism has been implemented. The maximum stack 9168193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 9169126372Snjlstack" will display the current maximum stack usage. 9170102550Siwasaki 9171114237SnjlAll public symbols and global variables within the subsystem are 9172114237Snjlnow prefixed with the string "Acpi". This keeps all of the 9173114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 9174114237Snjlwith other kernel subsystems. 9175102550Siwasaki 9176114237SnjlMost of the internal fixed lookup tables have been moved into the 9177114237Snjlcode segment via the const operator. 9178102550Siwasaki 9179104470SiwasakiSeveral enhancements have been made to the interpreter to both 9180104470Siwasakireduce the code size and improve performance. 9181102550Siwasaki 9182114237SnjlCurrent core subsystem library code sizes are shown below. These 9183114237Snjlare the code and data sizes for the acpica.lib produced by the 9184193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9185126372Snjlany ACPI driver or OSPM code. The debug version of the code 9186126372Snjlincludes the full debug trace mechanism which contains over 700 9187126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 9188126372Snjlinvocations, and over 900 function exit macro invocations -- 9189126372Snjlleading to a much larger code and data size. Note that these 9190114237Snjlvalues will vary depending on the efficiency of the compiler and 9191114237Snjlthe compiler options used during generation. 9192102550Siwasaki 9193102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 9194102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 9195102550Siwasaki 9196102550Siwasaki Linux: 9197102550Siwasaki 9198104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 9199102550Siwasaki 9200102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 9201102550Siwasaki 9202102550Siwasaki ASL Compiler, version X2026: 9203102550Siwasaki 9204104470SiwasakiFixed a problem introduced in the previous label where the AML 9205167802Sjkim 9206104470Siwasakicode emitted for package objects produced packages with zero 9207104470Siwasakilength. 9208102550Siwasaki 9209102550Siwasaki ---------------------------------------- 9210102550SiwasakiSummary of changes for this label: 08_16_01 9211102550Siwasaki 9212102550SiwasakiACPI CA Core Subsystem: 9213102550Siwasaki 9214114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 9215114237SnjlAML interpreter (These are already supported by the Intel ASL 9216193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 9217126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 9218126372SnjlAML parser, debugger, and disassembler. 9219102550Siwasaki 9220114237SnjlThe internal memory tracking mechanism (leak detection code) has 9221114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 9222114237Snjlblock is no longer allocated for each memory allocation), and now 9223114237Snjlsupports all of the internal object caches. 9224102550Siwasaki 9225114237SnjlThe data structures and code for the internal object caches have 9226114237Snjlbeen coelesced and optimized so that there is a single cache and 9227114237Snjlmemory list data structure and a single group of functions that 9228114237Snjlimplement generic cache management. This has reduced the code 9229114237Snjlsize in both the debug and release versions of the subsystem. 9230102550Siwasaki 9231193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 9232126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 9233126372Snjldifferent, because it generates a single call to an internal 9234126372Snjlfunction. This results in a savings of about 90 bytes per 9235193267Sjkiminvocation, resulting in an overall code and data savings of about 9236126372Snjl16% in the debug version of the subsystem. 9237102550Siwasaki 9238102550Siwasaki Linux: 9239102550Siwasaki 9240114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 9241114237Snjlmachines. 9242102550Siwasaki 9243102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 9244102550Siwasaki 9245102550SiwasakiFurther tweaked source code Linuxization. 9246102550Siwasaki 9247102550SiwasakiOther minor fixes. 9248102550Siwasaki 9249102550Siwasaki ASL Compiler: 9250102550Siwasaki 9251114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 9252102550Siwasaki 9253114237SnjlFixed a problem where the optional length parameter for the ACPI 9254114237Snjl2.0 ToString operator. 9255102550Siwasaki 9256114237SnjlFixed multiple extraneous error messages when a syntax error is 9257114237Snjldetected within the declaration line of a control method. 9258102550Siwasaki 9259102550Siwasaki ---------------------------------------- 9260102550SiwasakiSummary of changes for this label: 07_17_01 9261102550Siwasaki 9262102550SiwasakiACPI CA Core Subsystem: 9263102550Siwasaki 9264104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 9265193267SjkimACPI table via the ACPI signature. The interface can be called at 9266126372Snjlany time during kernel initialization, even before the kernel 9267193267Sjkimvirtual memory manager is initialized and paging is enabled. This 9268126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 9269126372Snjlbefore the ACPI CA subsystem is initialized. 9270102550Siwasaki 9271104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 9272104470Siwasakicould be resolved to the incorrect address under the following 9273114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 9274114237Snjlparent operation region is not defined on a DWORD boundary. 9275102550Siwasaki 9276114237SnjlFixed a problem where the interpreter is not being locked during 9277114237Snjlnamespace initialization (during execution of the _INI control 9278114237Snjlmethods), causing an error when an attempt is made to release it 9279114237Snjllater. 9280102550Siwasaki 9281104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 9282114237Snjlongoing throughout the rest of this year. In this label, The Mod 9283114237Snjloperator is implemented. 9284102550Siwasaki 9285102550SiwasakiAdded a new data type to contain full PCI addresses named 9286193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 9287126372Snjland Function values. 9288102550Siwasaki 9289102550Siwasaki Linux: 9290102550Siwasaki 9291102550SiwasakiEnhanced the Linux version of the source code to change most 9292102550Siwasakicapitalized ACPI type names to lowercase. For example, all 9293114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 9294114237Snjlresult in a large diff, but the change is strictly cosmetic and 9295114237Snjlaligns the CA code closer to the Linux coding standard. 9296102550Siwasaki 9297102550SiwasakiOSL Interfaces: 9298102550Siwasaki 9299193267SjkimThe interfaces to the PCI configuration space have been changed to 9300193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 9301126372SnjlDeviceFunction field into two 16-bit fields. This was 9302114237Snjlaccomplished by moving the four values that define an address in 9303114237SnjlPCI configuration space (segment, bus, device, and function) to 9304114237Snjlthe new ACPI_PCI_ID structure. 9305102550Siwasaki 9306104470SiwasakiThe changes to the PCI configuration space interfaces led to a 9307104470Siwasakireexamination of the complete set of address space access 9308114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 9309114237Snjlinterfaces have proven difficult to maintain (any small change 9310193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 9311193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 9312126372Snjlsystems, it would not be appropriate to demultiplex the access 9313126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 9314114237Snjlcorresponding native OS interfaces contain a similar access width 9315114237Snjlparameter. For these reasons, the 18 address space interfaces 9316114237Snjlhave been replaced by these 6 new ones: 9317102550Siwasaki 9318102550SiwasakiAcpiOsReadPciConfiguration 9319102550SiwasakiAcpiOsWritePciConfiguration 9320102550SiwasakiAcpiOsReadMemory 9321102550SiwasakiAcpiOsWriteMemory 9322102550SiwasakiAcpiOsReadPort 9323102550SiwasakiAcpiOsWritePort 9324102550Siwasaki 9325114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 9326114237Snjlto perform the platform and/or OS-specific actions necessary to 9327114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 9328114237Snjlinterface will simply call down to the CA core to perform the low- 9329114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 9330114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 9331167802Sjkim 9332114237Snjlremain OS and platform independent. 9333102550Siwasaki 9334104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 9335114237Snjl"function code and pointer" interface for various miscellaneous 9336114237Snjlsignals and notifications that must be made to the host OS. The 9337114237Snjlfirst such signals are intended to support the ASL Fatal and 9338114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 9339114237Snjlinterface has been obsoleted. 9340102550Siwasaki 9341102550SiwasakiThe definition of the AcpiFormatException interface has been 9342114237Snjlchanged to simplify its use. The caller no longer must supply a 9343114237Snjlbuffer to the call; A pointer to a const string is now returned 9344114237Snjldirectly. This allows the call to be easily used in printf 9345114237Snjlstatements, etc. since the caller does not have to manage a local 9346114237Snjlbuffer. 9347102550Siwasaki 9348114237Snjl 9349102550Siwasaki ASL Compiler, Version X2025: 9350102550Siwasaki 9351114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 9352114237Snjland are fully functional. They will work with all ACPI 1.0 9353193267Sjkiminterpreters, since the operators are simply translated to If/Else 9354126372Snjlpairs. 9355102550Siwasaki 9356104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 9357104470Siwasakiwith 1.0 interpreters, for the same reason. 9358102550Siwasaki 9359114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 9360114237Snjlpackages have a separate opcode, and their size is determined by 9361114237Snjlthe interpreter at run-time. 9362102550Siwasaki 9363193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 9364126372Snjlreflect the new interfaces and changes to existing interfaces. 9365102550Siwasaki 9366102550Siwasaki ------------------------------------------ 9367102550SiwasakiSummary of changes for this label: 06_15_01 9368102550Siwasaki 9369102550Siwasaki ACPI CA Core Subsystem: 9370102550Siwasaki 9371102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 9372114237Snjlobject would get its byte address inadvertently rounded down to 9373114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 9374102550Siwasaki 9375102550Siwasaki ASL Compiler, version X2024: 9376102550Siwasaki 9377114237SnjlFixed a problem where the Switch() operator would either fault or 9378114237Snjlhang the compiler. Note however, that the AML code for this ACPI 9379114237Snjl2.0 operator is not yet implemented. 9380102550Siwasaki 9381114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 9382114237Snjltimings. 9383102550Siwasaki 9384114237SnjlImplementation of the CreateField operator automatically converts 9385114237Snjla reference to a named field within a resource descriptor from a 9386114237Snjlbyte offset to a bit offset if required. 9387102550Siwasaki 9388102550SiwasakiAdded some missing named fields from the resource descriptor 9389193267Sjkimsupport. These are the names that are automatically created by the 9390126372Snjlcompiler to reference fields within a descriptor. They are only 9391126372Snjlvalid at compile time and are not passed through to the AML 9392114237Snjlinterpreter. 9393102550Siwasaki 9394104470SiwasakiResource descriptor named fields are now typed as Integers and 9395104470Siwasakisubject to compile-time typechecking when used in expressions. 9396102550Siwasaki 9397102550Siwasaki ------------------------------------------ 9398102550SiwasakiSummary of changes for this label: 05_18_01 9399102550Siwasaki 9400102550Siwasaki ACPI CA Core Subsystem: 9401102550Siwasaki 9402114237SnjlFixed a couple of problems in the Field support code where bits 9403193267Sjkimfrom adjacent fields could be returned along with the proper field 9404126372Snjlbits. Restructured the field support code to improve performance, 9405126372Snjlreadability and maintainability. 9406102550Siwasaki 9407114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 9408114237Snjlinto the output, saving hundreds of copies of procedure name 9409114237Snjlstrings within the source, shrinking the memory footprint of the 9410114237Snjldebug version of the core subsystem. 9411102550Siwasaki 9412102550Siwasaki Source Code Structure: 9413102550Siwasaki 9414104470SiwasakiThe source code directory tree was restructured to reflect the 9415114237Snjlcurrent organization of the component architecture. Some files 9416114237Snjland directories have been moved and/or renamed. 9417102550Siwasaki 9418102550Siwasaki Linux: 9419102550Siwasaki 9420102550SiwasakiFixed leaking kacpidpc processes. 9421102550Siwasaki 9422102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 9423102550Siwasakiopened. 9424102550Siwasaki 9425102550Siwasaki ASL Compiler, version X2020: 9426102550Siwasaki 9427114237SnjlMemory allocation performance enhancement - over 24X compile time 9428114237Snjlimprovement on large ASL files. Parse nodes and namestring 9429114237Snjlbuffers are now allocated from a large internal compiler buffer. 9430102550Siwasaki 9431102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 9432102550Siwasakispecified 9433102550Siwasaki 9434193267SjkimThe "-d" debug output option now sends all output to the .DBG file 9435126372Snjlinstead of the console. 9436102550Siwasaki 9437102550Siwasaki"External" second parameter is now optional 9438102550Siwasaki 9439102550Siwasaki"ElseIf" syntax now properly allows the predicate 9440102550Siwasaki 9441102550SiwasakiLast operand to "Load" now recognized as a Target operand 9442102550Siwasaki 9443102550SiwasakiDebug object can now be used anywhere as a normal object. 9444102550Siwasaki 9445102550SiwasakiResourceTemplate now returns an object of type BUFFER 9446102550Siwasaki 9447102550SiwasakiEISAID now returns an object of type INTEGER 9448102550Siwasaki 9449102550Siwasaki"Index" now works with a STRING operand 9450102550Siwasaki 9451102550Siwasaki"LoadTable" now accepts optional parameters 9452102550Siwasaki 9453102550Siwasaki"ToString" length parameter is now optional 9454102550Siwasaki 9455102550Siwasaki"Interrupt (ResourceType," parse error fixed. 9456102550Siwasaki 9457104470Siwasaki"Register" with a user-defined region space parse error fixed 9458102550Siwasaki 9459114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 9460114237Snjlfixed 9461102550Siwasaki 9462102550Siwasaki"Revision" is now an object of type INTEGER. 9463102550Siwasaki 9464102550Siwasaki 9465102550Siwasaki 9466102550Siwasaki------------------------------------------ 9467102550SiwasakiSummary of changes for this label: 05_02_01 9468102550Siwasaki 9469102550SiwasakiLinux: 9470102550Siwasaki 9471102550Siwasaki/proc/acpi/event now blocks properly. 9472102550Siwasaki 9473102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 9474102550Siwasaki/proc/acpi/dsdt. 9475102550Siwasaki 9476102550Siwasaki ACPI CA Core Subsystem: 9477102550Siwasaki 9478193267SjkimFixed a problem introduced in the previous label where some of the 9479126372Snjl"small" resource descriptor types were not recognized. 9480102550Siwasaki 9481193267SjkimImproved error messages for the case where an ASL Field is outside 9482126372Snjlthe range of the parent operation region. 9483102550Siwasaki 9484102550Siwasaki ASL Compiler, version X2018: 9485102550Siwasaki 9486167802Sjkim 9487193267SjkimAdded error detection for ASL Fields that extend beyond the length 9488126372Snjlof the parent operation region (only if the length of the region 9489126372Snjlis known at compile time.) This includes fields that have a 9490126372Snjlminimum access width that is smaller than the parent region, and 9491126372Snjlindividual field units that are partially or entirely beyond the 9492126372Snjlextent of the parent. 9493102550Siwasaki 9494102550Siwasaki 9495102550Siwasaki 9496102550Siwasaki------------------------------------------ 9497102550SiwasakiSummary of changes for this label: 04_27_01 9498102550Siwasaki 9499102550Siwasaki ACPI CA Core Subsystem: 9500102550Siwasaki 9501193267SjkimFixed a problem where the namespace mutex could be released at the 9502126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 9503102550Siwasaki 9504104470SiwasakiAdded optional thread ID output for debug traces, to simplify 9505114237Snjldebugging of multiple threads. Added context switch notification 9506114237Snjlwhen the debug code realizes that a different thread is now 9507114237Snjlexecuting ACPI code. 9508102550Siwasaki 9509114237SnjlSome additional external data types have been prefixed with the 9510114237Snjlstring "ACPI_" for consistency. This may effect existing code. 9511193267SjkimThe data types affected are the external callback typedefs - e.g., 9512167802Sjkim 9513126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 9514102550Siwasaki 9515102550Siwasaki Linux: 9516102550Siwasaki 9517102550SiwasakiFixed an issue with the OSL semaphore implementation where a 9518102550Siwasakithread was waking up with an error from receiving a SIGCHLD 9519102550Siwasakisignal. 9520102550Siwasaki 9521114237SnjlLinux version of ACPI CA now uses the system C library for string 9522114237Snjlmanipulation routines instead of a local implementation. 9523102550Siwasaki 9524102550SiwasakiCleaned up comments and removed TBDs. 9525102550Siwasaki 9526102550Siwasaki ASL Compiler, version X2017: 9527102550Siwasaki 9528102550SiwasakiEnhanced error detection and reporting for all file I/O 9529102550Siwasakioperations. 9530102550Siwasaki 9531102550Siwasaki Documentation: 9532102550Siwasaki 9533102550SiwasakiProgrammer Reference updated to version 1.06. 9534102550Siwasaki 9535102550Siwasaki 9536102550Siwasaki 9537102550Siwasaki------------------------------------------ 9538102550SiwasakiSummary of changes for this label: 04_13_01 9539102550Siwasaki 9540102550Siwasaki ACPI CA Core Subsystem: 9541102550Siwasaki 9542102550SiwasakiRestructured support for BufferFields and RegionFields. 9543104470SiwasakiBankFields support is now fully operational. All known 32-bit 9544114237Snjllimitations on field sizes have been removed. Both BufferFields 9545114237Snjland (Operation) RegionFields are now supported by the same field 9546114237Snjlmanagement code. 9547102550Siwasaki 9548114237SnjlResource support now supports QWORD address and IO resources. The 9549114237Snjl16/32/64 bit address structures and the Extended IRQ structure 9550114237Snjlhave been changed to properly handle Source Resource strings. 9551102550Siwasaki 9552114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 9553193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 9554126372SnjlThis reserved value was changed from 0 since Unix systems allow a 9555126372Snjlthread ID of 0. 9556102550Siwasaki 9557102550SiwasakiLinux: 9558102550Siwasaki 9559102550SiwasakiDriver code reorganized to enhance portability 9560102550Siwasaki 9561102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 9562102550Siwasaki 9563102550SiwasakiFixed the EC driver to honor _GLK. 9564102550Siwasaki 9565102550SiwasakiASL Compiler, version X2016: 9566102550Siwasaki 9567114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 9568114237Snjladdress space was set to 0, not 0x7f as it should be. 9569102550Siwasaki 9570102550Siwasaki ------------------------------------------ 9571102550SiwasakiSummary of changes for this label: 03_13_01 9572102550Siwasaki 9573102550Siwasaki ACPI CA Core Subsystem: 9574102550Siwasaki 9575104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 9576104470Siwasakipresent. 9577102550Siwasaki 9578193267SjkimNotify handler fix - notifies are deferred until the parent method 9579126372Snjlcompletes execution. This fixes the "mutex already acquired" 9580126372Snjlissue seen occasionally. 9581102550Siwasaki 9582104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 9583114237Snjlfound to cause compatibility problems with existing ASL/AML. The 9584114237Snjlconvert "result-to-target-type" implementation has been removed 9585114237Snjlfor stores to method Args and Locals. Source operand conversion 9586114237Snjlis still fully implemented. Possible changes to ACPI 2.0 9587114237Snjlspecification pending. 9588102550Siwasaki 9589104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 9590104470Siwasakilength. 9591102550Siwasaki 9592102550SiwasakiFix for compiler warnings for 64-bit compiles. 9593102550Siwasaki 9594102550Siwasaki Linux: 9595102550Siwasaki 9596102550Siwasaki/proc output aligned for easier parsing. 9597102550Siwasaki 9598102550SiwasakiRelease-version compile problem fixed. 9599102550Siwasaki 9600104470SiwasakiNew kernel configuration options documented in Configure.help. 9601102550Siwasaki 9602102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 9603102550Siwasakicontext" message. 9604102550Siwasaki 9605102550Siwasaki OSPM: 9606102550Siwasaki 9607102550SiwasakiPower resource driver integrated with bus manager. 9608102550Siwasaki 9609102550SiwasakiFixed kernel fault during active cooling for thermal zones. 9610102550Siwasaki 9611102550SiwasakiSource Code: 9612102550Siwasaki 9613102550SiwasakiThe source code tree has been restructured. 9614102550Siwasaki 9615102550Siwasaki 9616102550Siwasaki 9617102550Siwasaki------------------------------------------ 9618102550SiwasakiSummary of changes for this label: 03_02_01 9619102550Siwasaki 9620102550Siwasaki Linux OS Services Layer (OSL): 9621102550Siwasaki 9622102550SiwasakiMajor revision of all Linux-specific code. 9623102550Siwasaki 9624102550SiwasakiModularized all ACPI-specific drivers. 9625102550Siwasaki 9626102550SiwasakiAdded new thermal zone and power resource drivers. 9627102550Siwasaki 9628114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 9629102550Siwasaki 9630102550SiwasakiNew kernel configuration options. 9631102550Siwasaki 9632102550Siwasaki Linux known issues: 9633102550Siwasaki 9634114237SnjlNew kernel configuration options not documented in Configure.help 9635114237Snjlyet. 9636102550Siwasaki 9637114237Snjl 9638102550SiwasakiModule dependencies not currently implemented. If used, they 9639102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 9640102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 9641102550Siwasaki 9642102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 9643102550Siwasaki 9644102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 9645102550Siwasaki 9646104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 9647104470Siwasakimessage. 9648102550Siwasaki 9649104470SiwasakiSome systems may fail with "execution mutex already acquired" 9650104470Siwasakimessage. 9651102550Siwasaki 9652102550Siwasaki ACPI CA Core Subsystem: 9653102550Siwasaki 9654114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 9655193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 9656126372Snjlbit thread ID for the currently executing thread. May be a non- 9657126372Snjlzero constant integer on single-thread systems. 9658102550Siwasaki 9659193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 9660126372Snjlmay add conditional compilation for this code (debug only) later. 9661102550Siwasaki 9662104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 9663114237Snjlincludes multiple acquires/releases by owner and support for the 9664167802Sjkim 9665114237SnjlMutex SyncLevel parameter. 9666102550Siwasaki 9667102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 9668104470SiwasakiMutexes that have been acquired but not released when a thread 9669114237Snjlexits the interpreter. This forces conformance to the ACPI spec 9670114237Snjl("All mutexes must be released when an invocation exits") and 9671114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 9672114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 9673114237Snjlcontinues to misbehave (which it will). 9674102550Siwasaki 9675104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 9676104470Siwasakisupport. 9677102550Siwasaki 9678104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 9679114237Snjlspec does in fact allow recursive method calls.) The number of 9680114237Snjlrecursive calls is subject to the restrictions imposed by the 9681114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 9682104470Siwasakiparameter. 9683102550Siwasaki 9684102550SiwasakiImplemented support for the SyncLevel parameter for control 9685102550Siwasakimethods (ACPI 2.0 feature) 9686102550Siwasaki 9687114237SnjlFixed a deadlock problem when multiple threads attempted to use 9688114237Snjlthe interpreter. 9689102550Siwasaki 9690102550SiwasakiFixed a problem where the string length of a String package 9691102550Siwasakielement was not always set in a package returned from 9692102550SiwasakiAcpiEvaluateObject. 9693102550Siwasaki 9694114237SnjlFixed a problem where the length of a String package element was 9695114237Snjlnot always included in the length of the overall package returned 9696114237Snjlfrom AcpiEvaluateObject. 9697102550Siwasaki 9698102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 9699102550Siwasakimanager. This manager keeps a list of all outstanding 9700193267Sjkimallocations, and can therefore detect memory leaks and attempts to 9701126372Snjlfree memory blocks more than once. Useful for code such as the 9702114237Snjlpower manager, etc. May not be appropriate for device drivers. 9703114237SnjlPerformance with the debug code enabled is slow. 9704102550Siwasaki 9705102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 9706102550Siwasaki 9707102550Siwasaki ASL Compiler Version X2015: 9708102550Siwasaki 9709102550SiwasakiIntegrated changes to allow the compiler to be generated on 9710102550Siwasakimultiple platforms. 9711102550Siwasaki 9712102550SiwasakiLinux makefile added to generate the compiler on Linux 9713102550Siwasaki 9714102550Siwasaki Source Code: 9715102550Siwasaki 9716102550SiwasakiAll platform-specific headers have been moved to their own 9717102550Siwasakisubdirectory, Include/Platform. 9718102550Siwasaki 9719102550SiwasakiNew source file added, Interpreter/ammutex.c 9720102550Siwasaki 9721102550SiwasakiNew header file, Include/acstruct.h 9722102550Siwasaki 9723102550Siwasaki Documentation: 9724102550Siwasaki 9725114237SnjlThe programmer reference has been updated for the following new 9726114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 9727102550Siwasaki 9728102550Siwasaki ------------------------------------------ 9729102550SiwasakiSummary of changes for this label: 02_08_01 9730102550Siwasaki 9731102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 9732193267Sjkimincorrectly returned if the return resource buffer was larger than 9733126372Snjlthe actual data (in the resource interfaces). 9734102550Siwasaki 9735114237SnjlReferences to named objects within packages are resolved to the 9736167802Sjkim 9737114237Snjlfull pathname string before packages are returned directly (via 9738114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 9739114237Snjlinterfaces. 9740102550Siwasaki 9741102550SiwasakiLinux OS Services Layer (OSL): 9742102550Siwasaki 9743102550SiwasakiImproved /proc battery interface. 9744102550Siwasaki 9745102550Siwasaki 9746104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 9747102550Siwasaki 9748102550SiwasakiASL Compiler Version X2014: 9749102550Siwasaki 9750114237SnjlAll defined method arguments can now be used as local variables, 9751114237Snjlincluding the ones that are not actually passed in as parameters. 9752114237SnjlThe compiler tracks initialization of the arguments and issues an 9753114237Snjlexception if they are used without prior assignment (just like 9754114237Snjllocals). 9755102550Siwasaki 9756193267SjkimThe -o option now specifies a filename prefix that is used for all 9757126372Snjloutput files, including the AML output file. Otherwise, the 9758114237Snjldefault behavior is as follows: 1) the AML goes to the file 9759114237Snjlspecified in the DSDT. 2) all other output files use the input 9760114237Snjlsource filename as the base. 9761102550Siwasaki 9762102550Siwasaki ------------------------------------------ 9763102550SiwasakiSummary of changes for this label: 01_25_01 9764102550Siwasaki 9765114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 9766114237Snjlstore support within the interpreter. This includes support for 9767114237Snjlthe Store operator as well as any ASL operators that include a 9768114237Snjltarget operand. 9769102550Siwasaki 9770102550SiwasakiPartially implemented support for Implicit Result-to-Target 9771114237Snjlconversion. This is when a result object is converted on the fly 9772114237Snjlto the type of an existing target object. Completion of this 9773114237Snjlsupport is pending further analysis of the ACPI specification 9774114237Snjlconcerning this matter. 9775102550Siwasaki 9776114237SnjlCPU-specific code has been removed from the subsystem (hardware 9777114237Snjldirectory). 9778102550Siwasaki 9779102550SiwasakiNew Power Management Timer functions added 9780102550Siwasaki 9781114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 9782114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 9783102550Siwasaki 9784102550SiwasakiFixed C2 and C3 latency calculations. 9785102550Siwasaki 9786102550Siwasaki 9787114237SnjlWe no longer use the compilation date for the version message on 9788193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 9789102550Siwasaki 9790102550SiwasakiIncorporated for fix Sony VAIO machines. 9791102550Siwasaki 9792104470SiwasakiDocumentation: The Programmer Reference has been updated and 9793104470Siwasakireformatted. 9794102550Siwasaki 9795102550Siwasaki 9796102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 9797102550Siwasakinumbering and error reporting could get out of sync in the 9798102550Siwasakipresence of multiple include files. 9799102550Siwasaki 9800102550Siwasaki ------------------------------------------ 9801102550SiwasakiSummary of changes for this label: 01_15_01 9802102550Siwasaki 9803102550SiwasakiCore ACPI CA Subsystem: 9804102550Siwasaki 9805114237SnjlImplemented support for type conversions in the execution of the 9806114237SnjlASL Concatenate operator (The second operand is converted to 9807114237Snjlmatch the type of the first operand before concatenation.) 9808102550Siwasaki 9809102550SiwasakiSupport for implicit source operand conversion is partially 9810114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 9811114237SnjlString are freely interchangeable for most ASL operators and are 9812114237Snjlconverted by the interpreter on the fly as required. Implicit 9813114237SnjlTarget operand conversion (where the result is converted to the 9814114237Snjltarget type before storing) is not yet implemented. 9815102550Siwasaki 9816102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 9817102550Siwasaki 9818193267SjkimProblem fixed where a field read on an aligned field could cause a 9819126372Snjlread past the end of the field. 9820102550Siwasaki 9821114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 9822114237Snjldoes not return a value, but the caller expects one. (The ASL 9823114237Snjlcompiler flags this as a warning.) 9824102550Siwasaki 9825102550SiwasakiASL Compiler: 9826102550Siwasaki 9827102550SiwasakiVersion X2011: 9828102550Siwasaki1. Static typechecking of all operands is implemented. This 9829193267Sjkimprevents the use of invalid objects (such as using a Package where 9830126372Snjlan Integer is required) at compile time instead of at interpreter 9831126372Snjlrun-time. 9832114237Snjl2. The ASL source line is printed with ALL errors and warnings. 9833102550Siwasaki3. Bug fix for source EOF without final linefeed. 9834193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 9835102550Siwasaki5. Namespace output option (-n) includes initial values for 9836102550Siwasakiintegers and strings. 9837102550Siwasaki6. Parse-only option added for quick syntax checking. 9838102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 9839102550Siwasaki 9840102550SiwasakiVersion X2012: 9841102550Siwasaki1. Relaxed typechecking to allow interchangeability between 9842114237Snjlstrings, integers, and buffers. These types are now converted by 9843114237Snjlthe interpreter at runtime. 9844114237Snjl2. Compiler reports time taken by each internal subsystem in the 9845114237Snjldebug output file. 9846102550Siwasaki 9847102550Siwasaki 9848102550Siwasaki ------------------------------------------ 9849102550SiwasakiSummary of changes for this label: 12_14_00 9850102550Siwasaki 9851102550SiwasakiASL Compiler: 9852102550Siwasaki 9853104470SiwasakiThis is the first official release of the compiler. Since the 9854104470Siwasakicompiler requires elements of the Core Subsystem, this label 9855104470Siwasakisynchronizes everything. 9856102550Siwasaki 9857102550Siwasaki------------------------------------------ 9858102550SiwasakiSummary of changes for this label: 12_08_00 9859102550Siwasaki 9860102550Siwasaki 9861114237SnjlFixed a problem where named references within the ASL definition 9862114237Snjlof both OperationRegions and CreateXXXFields did not work 9863114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9864114237Snjlinitialization of the region/field. This is similar (but not 9865114237Snjlrelated internally) to the problem that was fixed in the last 9866114237Snjllabel. 9867114237Snjl 9868102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 9869102550Siwasakifunctions ToBCD and FromBCD. 9870102550Siwasaki 9871102550SiwasakiUpdated all legal headers to include "2000" in the copyright 9872102550Siwasakiyears. 9873102550Siwasaki 9874102550Siwasaki ------------------------------------------ 9875102550SiwasakiSummary of changes for this label: 12_01_00 9876102550Siwasaki 9877193267SjkimFixed a problem where method invocations within the ASL definition 9878126372Snjlof both OperationRegions and CreateXXXFields did not work 9879126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9880114237Snjlinitialization of the region/field: 9881102550Siwasaki 9882114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 9883114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 9884114237Snjl(0x3005) 9885102550Siwasaki 9886102550SiwasakiFixed a problem where operators with more than one nested 9887104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 9888114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 9889114237Snjlproblem that has gone unnoticed until now. 9890102550Siwasaki 9891102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 9892102550Siwasaki 9893114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 9894114237Snjlprevious build (The prefix part of a relative path was handled 9895114237Snjlincorrectly). 9896102550Siwasaki 9897114237SnjlFixed a problem where Operation Region initialization failed if 9898114237Snjlthe operation region name was a "namepath" instead of a simple 9899114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 9900102550Siwasaki 9901114237SnjlFixed a problem where an assignment to a local variable via the 9902114237Snjlindirect RefOf mechanism only worked for the first such 9903102550Siwasakiassignment. Subsequent assignments were ignored. 9904102550Siwasaki 9905102550Siwasaki ------------------------------------------ 9906102550SiwasakiSummary of changes for this label: 11_15_00 9907102550Siwasaki 9908193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 9909193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 9910126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 9911126372Snjlgrammar terms at this time. 9912102550Siwasaki 9913193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 9914126372SnjlFADT. 9915102550Siwasaki 9916193267SjkimAll physical memory addresses across all platforms are now 64 bits 9917126372Snjlwide. Logical address width remains dependent on the platform 9918126372Snjl(i.e., "void *"). 9919102550Siwasaki 9920114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 9921102550Siwasaki 9922114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 9923114237Snjl2.0 specification. 9924102550Siwasaki 9925104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 9926104470Siwasakirevision number less than 2 use 32-bit integers only. 9927102550Siwasaki 9928114237SnjlFixed a problem where the evaluation of OpRegion operands did not 9929114237Snjlalways resolve them to numbers properly. 9930102550Siwasaki 9931102550Siwasaki------------------------------------------ 9932102550SiwasakiSummary of changes for this label: 10_20_00 9933102550Siwasaki 9934114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 9935114237SnjlCBN_ OpRegions when the _STA returns 0x8. 9936102550Siwasaki 9937104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 9938104470Siwasakivalues before a package object is returned 9939102550Siwasaki 9940104470SiwasakiFix for method call as predicate to if/while construct causing 9941104470Siwasakiincorrect if/while behavior 9942102550Siwasaki 9943114237SnjlFix for Else block package lengths sometimes calculated wrong (if 9944114237Snjlblock > 63 bytes) 9945102550Siwasaki 9946102550SiwasakiFix for Processor object length field, was always zero 9947102550Siwasaki 9948102550SiwasakiTable load abort if FACP sanity check fails 9949102550Siwasaki 9950102550SiwasakiFix for problem with Scope(name) if name already exists 9951102550Siwasaki 9952102550SiwasakiWarning emitted if a named object referenced cannot be found 9953102550Siwasaki(resolved) during method execution. 9954102550Siwasaki 9955102550Siwasaki 9956102550Siwasaki 9957102550Siwasaki 9958102550Siwasaki 9959102550Siwasaki------------------------------------------ 9960102550SiwasakiSummary of changes for this label: 9_29_00 9961102550Siwasaki 9962114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 9963114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 9964114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 9965114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 9966114237SnjlAcpiLoadTables 9967102550Siwasaki 9968193267SjkimNote: These interface changes require changes to all existing OSDs 9969102550Siwasaki 9970114237SnjlThe PCI_Config default address space handler is always installed 9971114237Snjlat the root namespace object. 9972102550Siwasaki 9973102550Siwasaki------------------------------------------- 9974102550SiwasakiSummary of changes for this label: 09_15_00 9975102550Siwasaki 9976102550SiwasakiThe new initialization architecture is implemented. New 9977114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 9978114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 9979167802Sjkim 9980114237Snjl(Namespace is automatically loaded when a table is loaded) 9981102550Siwasaki 9982193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 9983126372Snjl52 bytes to 32 bytes. There is usually one of these for every 9984126372Snjlnamespace object, so the memory savings is significant. 9985102550Siwasaki 9986114237SnjlImplemented just-in-time evaluation of the CreateField operators. 9987102550Siwasaki 9988102550SiwasakiBug fixes for IA-64 support have been integrated. 9989102550Siwasaki 9990102550SiwasakiAdditional code review comments have been implemented 9991102550Siwasaki 9992193267SjkimThe so-called "third pass parse" has been replaced by a final walk 9993193267Sjkimthrough the namespace to initialize all operation regions (address 9994126372Snjlspaces) and fields that have not yet been initialized during the 9995126372Snjlexecution of the various _INI and REG methods. 9996102550Siwasaki 9997102550SiwasakiNew file - namespace/nsinit.c 9998102550Siwasaki 9999102550Siwasaki------------------------------------------- 10000102550SiwasakiSummary of changes for this label: 09_01_00 10001102550Siwasaki 10002193267SjkimNamespace manager data structures have been reworked to change the 10003126372Snjlprimary object from a table to a single object. This has 10004193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 10005126372Snjl2X overall in the ACPI CA subsystem. 10006102550Siwasaki 10007102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 10008102550Siwasakiinadvertently left commented out. 10009102550Siwasaki 10010114237SnjlReduced the warning count when generating the source with the GCC 10011114237Snjlcompiler. 10012102550Siwasaki 10013102550SiwasakiRevision numbers added to each module header showing the 10014104470SiwasakiSourceSafe version of the file. Please refer to this version 10015114237Snjlnumber when giving us feedback or comments on individual modules. 10016102550Siwasaki 10017114237SnjlThe main object types within the subsystem have been renamed to 10018114237Snjlclarify their purpose: 10019102550Siwasaki 10020102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 10021102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 10022102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 10023102550Siwasaki 10024114237SnjlNOTE: no changes to the initialization sequence are included in 10025114237Snjlthis label. 10026102550Siwasaki 10027102550Siwasaki------------------------------------------- 10028102550SiwasakiSummary of changes for this label: 08_23_00 10029102550Siwasaki 10030102550SiwasakiFixed problem where TerminateControlMethod was being called 10031102550Siwasakimultiple times per method 10032102550Siwasaki 10033193267SjkimFixed debugger problem where single stepping caused a semaphore to 10034126372Snjlbe oversignalled 10035102550Siwasaki 10036104470SiwasakiImproved performance through additional parse object caching - 10037104470Siwasakiadded ACPI_EXTENDED_OP type 10038102550Siwasaki 10039102550Siwasaki------------------------------------------- 10040102550SiwasakiSummary of changes for this label: 08_10_00 10041102550Siwasaki 10042102550SiwasakiParser/Interpreter integration: Eliminated the creation of 10043102550Siwasakicomplete parse trees for ACPI tables and control methods. 10044114237SnjlInstead, parse subtrees are created and then deleted as soon as 10045193267Sjkimthey are processed (Either entered into the namespace or executed 10046126372Snjlby the interpreter). This reduces the use of dynamic kernel 10047126372Snjlmemory significantly. (about 10X) 10048102550Siwasaki 10049114237SnjlException codes broken into classes and renumbered. Be sure to 10050114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 10051114237Snjlhave to renumber the codes again now that they are split into 10052114237Snjlclasses (environment, programmer, AML code, ACPI table, and 10053114237Snjlinternal). 10054102550Siwasaki 10055104470SiwasakiFixed some additional alignment issues in the Resource Manager 10056104470Siwasakisubcomponent 10057102550Siwasaki 10058114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 10059114237Snjlseveral places where mutexes/semaphores were being unlocked 10060114237Snjlwithout a corresponding lock operation. There are no known 10061114237Snjlsemaphore or mutex "leaks" at this time. 10062102550Siwasaki 10063114237SnjlFixed the case where an ASL Return operator is used to return an 10064114237Snjlunnamed package. 10065102550Siwasaki 10066102550Siwasaki------------------------------------------- 10067102550SiwasakiSummary of changes for this label: 07_28_00 10068102550Siwasaki 10069102550SiwasakiFixed a problem with the way addresses were calculated in 10070114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 10071114237Snjlmanifested itself when a Field was created with WordAccess or 10072193267SjkimDwordAccess, but the field unit defined within the Field was less 10073167802Sjkim 10074126372Snjlthan a Word or Dword. 10075102550Siwasaki 10076102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 10077104470Siwasakioperands off of the operand stack to display information. The 10078114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 10079114237Snjlaccessing an operand stack with two or more operands. 10080102550Siwasaki 10081114237SnjlFixed a problem with the PCI configuration space handlers where 10082114237Snjlcontext was getting confused between accesses. This required a 10083114237Snjlchange to the generic address space handler and address space 10084193267Sjkimsetup definitions. Handlers now get both a global handler context 10085126372Snjl(this is the one passed in by the user when executing 10086114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 10087114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 10088114237Snjl_BBN values associated with a specific region). The generic 10089114237Snjlfunction definitions have changed to the following: 10090102550Siwasaki 10091114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 10092114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 10093104470Siwasaki*HandlerContext, // This used to be void *Context void 10094102550Siwasaki*RegionContext); // This is an additional parameter 10095102550Siwasaki 10096102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 10097102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 10098102550Siwasaki**RegionContext); // This used to be **ReturnContext 10099102550Siwasaki 10100102550Siwasaki------------------------------------------- 10101102550SiwasakiSummary of changes for this label: 07_21_00 10102102550Siwasaki 10103102550SiwasakiMajor file consolidation and rename. All files within the 10104193267Sjkiminterpreter have been renamed as well as most header files. This 10105126372Snjlwas done to prevent collisions with existing files in the host 10106126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 10107126372Snjlquite common. The VC project files have been updated. All 10108114237Snjlmakefiles will require modification. 10109102550Siwasaki 10110114237SnjlThe parser/interpreter integration continues in Phase 5 with the 10111114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 10112114237Snjltwice) for each table; This avoids the construction of a huge 10113114237Snjlparse tree and therefore reduces the amount of dynamic memory 10114114237Snjlrequired by the subsystem. Greater use of the parse object cache 10115114237Snjlmeans that performance is unaffected. 10116102550Siwasaki 10117102550SiwasakiMany comments from the two code reviews have been rolled in. 10118102550Siwasaki 10119102550SiwasakiThe 64-bit alignment support is complete. 10120102550Siwasaki 10121102550Siwasaki------------------------------------------- 10122102550SiwasakiSummary of changes for this label: 06_30_00 10123102550Siwasaki 10124114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 10125114237Snjlwe've added support in the source code for 80 column output 10126114237Snjldevices. The code is now mostly constrained to 80 columns or 10127114237Snjlless to support environments and editors that 1) cannot display 10128114237Snjlor print more than 80 characters on a single line, and 2) cannot 10129114237Snjldisable line wrapping. 10130102550Siwasaki 10131104470SiwasakiA major restructuring of the namespace data structure has been 10132104470Siwasakicompleted. The result is 1) cleaner and more 10133114237Snjlunderstandable/maintainable code, and 2) a significant reduction 10134114237Snjlin the dynamic memory requirement for each named ACPI object 10135114237Snjl(almost half). 10136102550Siwasaki 10137102550Siwasaki------------------------------------------- 10138102550SiwasakiSummary of changes for this label: 06_23_00 10139102550Siwasaki 10140114237SnjlLinux support has been added. In order to obtain approval to get 10141114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 10142114237Snjlquite a few changes to the base subsystem that will affect all 10143114237Snjlusers (all the changes are generic and OS- independent). The 10144114237Snjleffects of these global changes have been somewhat far reaching. 10145114237SnjlFiles have been merged and/or renamed and interfaces have been 10146114237Snjlrenamed. The major changes are described below. 10147102550Siwasaki 10148102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 10149102550Siwasakipollution/confusion within our target kernels. All OSD 10150114237Snjlinterfaces must be modified to match the new naming convention. 10151102550Siwasaki 10152193267SjkimFiles merged across the subsystem. A number of the smaller source 10153126372Snjland header files have been merged to reduce the file count and 10154126372Snjlincrease the density of the existing files. There are too many 10155126372Snjlto list here. In general, makefiles that call out individual 10156126372Snjlfiles will require rebuilding. 10157102550Siwasaki 10158104470SiwasakiInterpreter files renamed. All interpreter files now have the 10159104470Siwasakiprefix am* instead of ie* and is*. 10160102550Siwasaki 10161104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 10162114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 10163114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 10164114237Snjl"external interface" or xface or xf in the filenames.j 10165102550Siwasaki 10166102550Siwasaki 10167114237SnjlAll manifest constants have been forced to upper case (some were 10168193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 10169126372Snjl(not all) of the constants, typedefs, and structs. 10170102550Siwasaki 10171102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 10172102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 10173102550Siwasaki 10174102550SiwasakiAll other globals within the subsystem are now prefixed with 10175102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 10176114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 10177193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 10178126372Snjl- for example, CmCallocate became AcpiCmCallocate. 10179102550Siwasaki 10180102550SiwasakiAdded a source code translation/conversion utility. Used to 10181114237Snjlgenerate the Linux source code, it can be modified to generate 10182114237Snjlother types of source as well. Can also be used to cleanup 10183114237Snjlexisting source by removing extraneous spaces and blank lines. 10184114237SnjlFound in tools/acpisrc/* 10185102550Siwasaki 10186102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 10187102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 10188102550Siwasaki 10189114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 10190114237SnjlWhen set to one, this indicates that the caller wants to use the 10191167802Sjkim 10192114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 10193114237Snjlboth types. However, implementers of this call may want to use 10194114237Snjldifferent OS primitives depending on the type of semaphore 10195114237Snjlrequested. For example, some operating systems provide separate 10196167802Sjkim 10197193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 10198126372Snjlmuch faster because it doesn't have all the overhead of a full 10199126372Snjlsemaphore implementation. 10200102550Siwasaki 10201104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 10202114237Snjladdress space can block forever if it is the first access to the 10203114237Snjlspace. 10204102550Siwasaki 10205102550Siwasaki------------------------------------------- 10206102550SiwasakiSummary of changes for this label: 06_02_00 10207102550Siwasaki 10208102550SiwasakiSupport for environments that cannot handle unaligned data 10209114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 10210193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 10211126372Snjlbeen added (via configurable macros) in these three areas: - 10212114237SnjlTransfer of data from the raw AML byte stream is done via byte 10213193267Sjkimmoves instead of word/dword/qword moves. - External objects are 10214126372Snjlaligned within the user buffer, including package elements (sub- 10215193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 10216126372Snjldone byte-wise. 10217102550Siwasaki 10218102550SiwasakiThe Store operator was modified to mimic Microsoft's 10219102550Siwasakiimplementation when storing to a Buffer Field. 10220102550Siwasaki 10221102550SiwasakiAdded a check of the BM_STS bit before entering C3. 10222102550Siwasaki 10223114237SnjlThe methods subdirectory has been obsoleted and removed. A new 10224114237Snjlfile, cmeval.c subsumes the functionality. 10225102550Siwasaki 10226102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 10227102550Siwasakimakefile is under the acpiexec directory. 10228