changes.txt revision 210976
1117521Snjl---------------------------------------- 2210976Sjkim06 August 2010. Summary of changes for version 20100806: 3210976Sjkim 4210976Sjkim1) ACPI CA Core Subsystem: 5210976Sjkim 6210976SjkimDesigned and implemented a new host interface to the _OSI support code. This 7210976Sjkimwill allow the host to dynamically add or remove multiple _OSI strings, as 8210976Sjkimwell as install an optional handler that is called for each _OSI invocation. 9210976SjkimAlso added a new AML debugger command, 'osi' to display and modify the global 10210976Sjkim_OSI string table, and test support in the AcpiExec utility. See the ACPICA 11210976Sjkimreference manual for full details. Lin Ming, Bob Moore. ACPICA BZ 836. 12210976SjkimNew Functions: 13210976Sjkim AcpiInstallInterface - Add an _OSI string. 14210976Sjkim AcpiRemoveInterface - Delete an _OSI string. 15210976Sjkim AcpiInstallInterfaceHandler - Install optional _OSI handler. 16210976SjkimObsolete Functions: 17210976Sjkim AcpiOsValidateInterface - no longer used. 18210976SjkimNew Files: 19210976Sjkim source/components/utilities/utosi.c 20210976Sjkim 21210976SjkimRe-introduced the support to enable multi-byte transfers for Embedded 22210976SjkimController (EC) operation regions. A reported problem was found to be a bug 23210976Sjkimin the host OS, not in the multi-byte support. Previously, the maximum data 24210976Sjkimsize passed to the EC operation region handler was a single byte. There are 25210976Sjkimoften EC Fields larger than one byte that need to be transferred, and it is 26210976Sjkimuseful for the EC driver to lock these as a single transaction. This change 27210976Sjkimenables single transfers larger than 8 bits. This effectively changes the 28210976Sjkimaccess to the EC space from ByteAcc to AnyAcc, and will probably require 29210976Sjkimchanges to the host OS Embedded Controller driver to enable 16/32/64/256-bit 30210976Sjkimtransfers in addition to 8-bit transfers. Alexey Starikovskiy, Lin Ming. 31210976Sjkim 32210976SjkimFixed a problem with the prototype for AcpiOsReadPciConfiguration. The 33210976Sjkimprototype in acpiosxf.h had the output value pointer as a (void *). 34210976SjkimIt should be a (UINT64 *). This may affect some host OSL code. 35210976Sjkim 36210976SjkimFixed a couple problems with the recently modified Linux makefiles for iASL 37210976Sjkimand AcpiExec. These new makefiles place the generated object files in the 38210976Sjkimlocal directory so that there can be no collisions between the files that are 39210976Sjkimshared between them that are compiled with different options. 40210976Sjkim 41210976SjkimExample Code and Data Size: These are the sizes for the OS-independent 42210976Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 43210976Sjkimdebug version of the code includes the debug output trace mechanism and has a 44210976Sjkimmuch larger code and data size. 45210976Sjkim 46210976Sjkim Previous Release: 47210976Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 48210976Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 49210976Sjkim Current Release: 50210976Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 51210976Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 52210976Sjkim 53210976Sjkim2) iASL Compiler/Disassembler and Tools: 54210976Sjkim 55210976SjkimiASL/Disassembler: Added a new option (-da, "disassemble all") to load the 56210976Sjkimnamespace from and disassemble an entire group of AML files. Useful for 57210976Sjkimloading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn) and 58210976Sjkimdisassembling with one simple command. ACPICA BZ 865. Lin Ming. 59210976Sjkim 60210976SjkimiASL: Allow multiple invocations of -e option. This change allows multiple 61210976Sjkimuses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ 834. 62210976SjkimLin Ming. 63210976Sjkim 64210976Sjkim---------------------------------------- 65209746Sjkim02 July 2010. Summary of changes for version 20100702: 66209746Sjkim 67209746Sjkim1) ACPI CA Core Subsystem: 68209746Sjkim 69209746SjkimImplemented several updates to the recently added GPE reference count 70209746Sjkimsupport. The model for "wake" GPEs is changing to give the host OS complete 71209746Sjkimcontrol of these GPEs. Eventually, the ACPICA core will not execute any _PRW 72209746Sjkimmethods, since the host already must execute them. Also, additional changes 73209746Sjkimwere made to help ensure that the reference counts are kept in proper 74209746Sjkimsynchronization with reality. Rafael J. Wysocki. 75209746Sjkim 76209746Sjkim1) Ensure that GPEs are not enabled twice during initialization. 77209746Sjkim2) Ensure that GPE enable masks stay in sync with the reference count. 78209746Sjkim3) Do not inadvertently enable GPEs when writing GPE registers. 79209746Sjkim4) Remove the internal wake reference counter and add new AcpiGpeWakeup 80209746Sjkiminterface. This interface will set or clear individual GPEs for wakeup. 81209746Sjkim5) Remove GpeType argument from AcpiEnable and AcpiDisable. These interfaces 82209746Sjkimare now used for "runtime" GPEs only. 83209746Sjkim 84209746SjkimChanged the behavior of the GPE install/remove handler interfaces. The GPE is 85209746Sjkimno longer disabled during this process, as it was found to cause problems on 86209746Sjkimsome machines. Rafael J. Wysocki. 87209746Sjkim 88209746SjkimReverted a change introduced in version 20100528 to enable Embedded 89209746SjkimController multi-byte transfers. This change was found to cause problems with 90209746SjkimIndex Fields and possibly Bank Fields. It will be reintroduced when these 91209746Sjkimproblems have been resolved. 92209746Sjkim 93209746SjkimFixed a problem with references to Alias objects within Package Objects. A 94209746Sjkimreference to an Alias within the definition of a Package was not always 95209746Sjkimresolved properly. Aliases to objects like Processors, Thermal zones, etc. 96209746Sjkimwere resolved to the actual object instead of a reference to the object as it 97209746Sjkimshould be. Package objects are only allowed to contain integer, string, 98209746Sjkimbuffer, package, and reference objects. Redhat bugzilla 608648. 99209746Sjkim 100209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 101209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 102209746Sjkimdebug version of the code includes the debug output trace mechanism and has a 103209746Sjkimmuch larger code and data size. 104209746Sjkim 105209746Sjkim Previous Release: 106209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 107209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 108209746Sjkim Current Release: 109209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 110209746Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 111209746Sjkim 112209746Sjkim2) iASL Compiler/Disassembler and Tools: 113209746Sjkim 114209746SjkimiASL: Implemented a new compiler subsystem to allow definition and 115209746Sjkimcompilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc. These 116209746Sjkimare called "ACPI Data Tables", and the new compiler is the "Data Table 117209746SjkimCompiler". This compiler is intended to simplify the existing error-prone 118209746Sjkimprocess of creating these tables for the BIOS, as well as allowing the 119209746Sjkimdisassembly, modification, recompilation, and override of existing ACPI data 120209746Sjkimtables. See the iASL User Guide for detailed information. 121209746Sjkim 122209746SjkimiASL: Implemented a new Template Generator option in support of the new Data 123209746SjkimTable Compiler. This option will create examples of all known ACPI tables 124209746Sjkimthat can be used as the basis for table development. See the iASL 125209746Sjkimdocumentation and the -T option. 126209746Sjkim 127209746SjkimDisassembler and headers: Added support for the WDDT ACPI table (Watchdog 128209746SjkimDescriptor Table). 129209746Sjkim 130209746SjkimUpdated the Linux makefiles for iASL and AcpiExec to place the generated 131209746Sjkimobject files in the local directory so that there can be no collisions 132209746Sjkimbetween the shared files between them that are generated with different 133209746Sjkimoptions. 134209746Sjkim 135209746SjkimAdded support for Mac OS X in the Unix OSL used for iASL and AcpiExec. Use 136209746Sjkimthe #define __APPLE__ to enable this support. 137209746Sjkim 138209746Sjkim---------------------------------------- 139209746Sjkim28 May 2010. Summary of changes for version 20100528: 140209746Sjkim 141209746SjkimNote: The ACPI 4.0a specification was released on April 5, 2010 and is 142209746Sjkimavailable at www.acpi.info. This is primarily an errata release. 143209746Sjkim 144209746Sjkim1) ACPI CA Core Subsystem: 145209746Sjkim 146209746SjkimUndefined ACPI tables: We are looking for the definitions for the following 147209746SjkimACPI tables that have been seen in the field: ATKG, IEIT, GSCI. 148209746Sjkim 149209746SjkimImplemented support to enable multi-byte transfers for Embedded Controller 150209746Sjkim(EC) operation regions. Previously, the maximum data size passed to the EC 151209746Sjkimoperation region handler was a single byte. There are often EC Fields larger 152209746Sjkimthan one byte that need to be transferred, and it is useful for the EC driver 153209746Sjkimto lock these as a single transaction. This change enables single transfers 154209746Sjkimlarger than 8 bits. This effectively changes the access to the EC space from 155209746SjkimByteAcc to AnyAcc, and will probably require changes to the host OS Embedded 156209746SjkimController driver to enable 16/32/64/256-bit transfers in addition to 8-bit 157209746Sjkimtransfers. Alexey Starikovskiy, Lin Ming 158209746Sjkim 159209746SjkimImplemented a performance enhancement for namespace search and access. This 160209746Sjkimchange enhances the performance of namespace searches and walks by adding a 161209746Sjkimbackpointer to the parent in each namespace node. On large namespaces, this 162209746Sjkimchange can improve overall ACPI performance by up to 9X. Adding a pointer to 163209746Sjkimeach namespace node increases the overall size of the internal namespace by 164209746Sjkimabout 5%, since each namespace entry usually consists of both a namespace 165209746Sjkimnode and an ACPI operand object. However, this is the first growth of the 166209746Sjkimnamespace in ten years. ACPICA bugzilla 817. Alexey Starikovskiy. 167209746Sjkim 168209746SjkimImplemented a performance optimization that reduces the number of namespace 169209746Sjkimwalks. On control method exit, only walk the namespace if the method is known 170209746Sjkimto have created namespace objects outside of its local scope. Previously, the 171209746Sjkimentire namespace was traversed on each control method exit. This change can 172209746Sjkimimprove overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob Moore. 173209746Sjkim 174209746SjkimAdded support to truncate I/O addresses to 16 bits for Windows compatibility. 175209746SjkimSome ASL code has been seen in the field that inadvertently has bits set 176209746Sjkimabove bit 15. This feature is optional and is enabled if the BIOS requests 177209746Sjkimany Windows OSI strings. It can also be enabled by the host OS. Matthew 178209746SjkimGarrett, Bob Moore. 179209746Sjkim 180209746SjkimAdded support to limit the maximum time for the ASL Sleep() operator. To 181209746Sjkimprevent accidental deep sleeps, limit the maximum time that Sleep() will 182209746Sjkimactually sleep. Configurable, the default maximum is two seconds. ACPICA 183209746Sjkimbugzilla 854. 184209746Sjkim 185209746SjkimAdded run-time validation support for the _WDG and_WED Microsoft predefined 186209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 187209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 188209746Sjkim 189209746SjkimExpanded all statistic counters used during namespace and device 190209746Sjkiminitialization from 16 to 32 bits in order to support very large namespaces. 191209746Sjkim 192209746SjkimReplaced all instances of %d in printf format specifiers with %u since nearly 193209746Sjkimall integers in ACPICA are unsigned. 194209746Sjkim 195209746SjkimFixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly returned 196209746Sjkimas AE_NO_HANDLER. 197209746Sjkim 198209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 199209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 200209746Sjkimdebug version of the code includes the debug output trace mechanism and has a 201209746Sjkimmuch larger code and data size. 202209746Sjkim 203209746Sjkim Previous Release: 204209746Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 205209746Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 206209746Sjkim Current Release: 207209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 208209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 209209746Sjkim 210209746Sjkim2) iASL Compiler/Disassembler and Tools: 211209746Sjkim 212209746SjkimiASL: Added compiler support for the _WDG and_WED Microsoft predefined 213209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 214209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 215209746Sjkim 216209746SjkimAcpiExec: added option to disable the memory tracking mechanism. The -dt 217209746Sjkimoption will disable the tracking mechanism, which improves performance 218209746Sjkimconsiderably. 219209746Sjkim 220209746SjkimAcpiExec: Restructured the command line options into -d (disable) and -e 221209746Sjkim(enable) options. 222209746Sjkim 223209746Sjkim---------------------------------------- 224207344Sjkim28 April 2010. Summary of changes for version 20100428: 225207344Sjkim 226207344Sjkim1) ACPI CA Core Subsystem: 227207344Sjkim 228207344SjkimImplemented GPE support for dynamically loaded ACPI tables. For all GPEs, 229207344Sjkimincluding FADT-based and GPE Block Devices, execute any _PRW methods in the 230207344Sjkimnew table, and process any _Lxx/_Exx GPE methods in the new table. Any 231207344Sjkimruntime GPE that is referenced by an _Lxx/_Exx method in the new table is 232207344Sjkimimmediately enabled. Handles the FADT-defined GPEs as well as GPE Block 233207344SjkimDevices. Provides compatibility with other ACPI implementations. Two new 234207344Sjkimfiles added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob Moore. 235207344Sjkim 236207344SjkimFixed a regression introduced in version 20100331 within the table manager 237207344Sjkimwhere initial table loading could fail. This was introduced in the fix for 238207344SjkimAcpiReallocateRootTable. Also, renamed some of fields in the table manager 239207344Sjkimdata structures to clarify their meaning and use. 240207344Sjkim 241207344SjkimFixed a possible allocation overrun during internal object copy in 242207344SjkimAcpiUtCopySimpleObject. The original code did not correctly handle the case 243207344Sjkimwhere the object to be copied was a namespace node. Lin Ming. ACPICA BZ 847. 244207344Sjkim 245207344SjkimUpdated the allocation dump routine, AcpiUtDumpAllocation and fixed a 246207344Sjkimpossible access beyond end-of-allocation. Also, now fully validate descriptor 247207344Sjkim(size and type) before output. Lin Ming, Bob Moore. ACPICA BZ 847 248207344Sjkim 249207344SjkimExample Code and Data Size: These are the sizes for the OS-independent 250207344Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 251207344Sjkimdebug version of the code includes the debug output trace mechanism and has a 252207344Sjkimmuch larger code and data size. 253207344Sjkim 254207344Sjkim Previous Release: 255207344Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 256207344Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 257207344Sjkim Current Release: 258207344Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 259207344Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 260207344Sjkim 261207344Sjkim2) iASL Compiler/Disassembler and Tools: 262207344Sjkim 263207344SjkimiASL: Implemented Min/Max/Len/Gran validation for address resource 264207344Sjkimdescriptors. This change implements validation for the address fields that 265207344Sjkimare common to all address-type resource descriptors. These checks are 266207344Sjkimimplemented: Checks for valid Min/Max, length within the Min/Max window, 267207344Sjkimvalid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as per 268207344Sjkimtable 6-40 in the ACPI 4.0a specification. Also split the large aslrestype1.c 269207344Sjkimand aslrestype2.c files into five new files. ACPICA BZ 840. 270207344Sjkim 271207344SjkimiASL: Added support for the _Wxx predefined names. This support was missing 272207344Sjkimand these names were not recognized by the compiler as valid predefined 273207344Sjkimnames. ACPICA BZ 851. 274207344Sjkim 275207344SjkimiASL: Added an error for all predefined names that are defined to return no 276207344Sjkimvalue and thus must be implemented as Control Methods. These include all of 277207344Sjkimthe _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous 278207344Sjkimnames such as _DIS, _INI, _IRC, _OFF, _ON, and _PSx. ACPICA BZ 850, 856. 279207344Sjkim 280207344SjkimiASL: Implemented the -ts option to emit hex AML data in ASL format, as an 281207344SjkimASL Buffer. Allows ACPI tables to be easily included within ASL files, to be 282207344Sjkimdynamically loaded via the Load() operator. Also cleaned up output for the - 283207344Sjkimta and -tc options. ACPICA BZ 853. 284207344Sjkim 285207344SjkimTests: Added a new file with examples of extended iASL error checking. 286207344SjkimDemonstrates the advanced error checking ability of the iASL compiler. 287207344SjkimAvailable at tests/misc/badcode.asl. 288207344Sjkim 289207344Sjkim---------------------------------------- 290206117Sjkim31 March 2010. Summary of changes for version 20100331: 291206117Sjkim 292206117Sjkim1) ACPI CA Core Subsystem: 293206117Sjkim 294206117SjkimCompleted a major update for the GPE support in order to improve support for 295206117Sjkimshared GPEs and to simplify both host OS and ACPICA code. Added a reference 296206117Sjkimcount mechanism to support shared GPEs that require multiple device drivers. 297206117SjkimSeveral external interfaces have changed. One external interface has been 298206117Sjkimremoved. One new external interface was added. Most of the GPE external 299206117Sjkiminterfaces now use the GPE spinlock instead of the events mutex (and the 300206117SjkimFlags parameter for many GPE interfaces has been removed.) See the updated 301206117SjkimACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael 302206117SjkimWysocki. ACPICA BZ 831. 303206117Sjkim 304206117SjkimChanged: 305206117Sjkim AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus 306206117SjkimRemoved: 307206117Sjkim AcpiSetGpeType 308206117SjkimNew: 309206117Sjkim AcpiSetGpe 310206117Sjkim 311206117SjkimImplemented write support for DataTable operation regions. These regions are 312206117Sjkimdefined via the DataTableRegion() operator. Previously, only read support was 313206117Sjkimimplemented. The ACPI specification allows DataTableRegions to be read/write, 314206117Sjkimhowever. 315206117Sjkim 316206117SjkimImplemented a new subsystem option to force a copy of the DSDT to local 317206117Sjkimmemory. Optionally copy the entire DSDT to local memory (instead of simply 318206117Sjkimmapping it.) There are some (albeit very rare) BIOSs that corrupt or replace 319206117Sjkimthe original DSDT, creating the need for this option. Default is FALSE, do 320206117Sjkimnot copy the DSDT. 321206117Sjkim 322206117SjkimImplemented detection of a corrupted or replaced DSDT. This change adds 323206117Sjkimsupport to detect a DSDT that has been corrupted and/or replaced from outside 324206117Sjkimthe OS (by firmware). This is typically catastrophic for the system, but has 325206117Sjkimbeen seen on some machines. Once this problem has been detected, the DSDT 326206117Sjkimcopy option can be enabled via system configuration. Lin Ming, Bob Moore. 327206117Sjkim 328206117SjkimFixed two problems with AcpiReallocateRootTable during the root table copy. 329206117SjkimWhen copying the root table to the new allocation, the length used was 330206117Sjkimincorrect. The new size was used instead of the current table size, meaning 331206117Sjkimtoo much data was copied. Also, the count of available slots for ACPI tables 332206117Sjkimwas not set correctly. Alexey Starikovskiy, Bob Moore. 333206117Sjkim 334206117SjkimExample Code and Data Size: These are the sizes for the OS-independent 335206117Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 336206117Sjkimdebug version of the code includes the debug output trace mechanism and has a 337206117Sjkimmuch larger code and data size. 338206117Sjkim 339206117Sjkim Previous Release: 340206117Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 341206117Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 342206117Sjkim Current Release: 343206117Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 344206117Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 345206117Sjkim 346206117Sjkim2) iASL Compiler/Disassembler and Tools: 347206117Sjkim 348206117SjkimiASL: Implement limited typechecking for values returned from predefined 349206117Sjkimcontrol methods. The type of any returned static (unnamed) object is now 350206117Sjkimvalidated. For example, Return(1). ACPICA BZ 786. 351206117Sjkim 352206117SjkimiASL: Fixed a predefined name object verification regression. Fixes a problem 353206117Sjkimintroduced in version 20100304. An error is incorrectly generated if a 354206117Sjkimpredefined name is declared as a static named object with a value defined 355206117Sjkimusing the keywords "Zero", "One", or "Ones". Lin Ming. 356206117Sjkim 357206117SjkimiASL: Added Windows 7 support for the -g option (get local ACPI tables) by 358206117Sjkimreducing the requested registry access rights. ACPICA BZ 842. 359206117Sjkim 360206117SjkimDisassembler: fixed a possible fault when generating External() statements. 361206117SjkimIntroduced in commit ae7d6fd: Properly handle externals with parent-prefix 362206117Sjkim(carat). Fixes a string length allocation calculation. Lin Ming. 363206117Sjkim 364206117Sjkim---------------------------------------- 365204773Sjkim04 March 2010. Summary of changes for version 20100304: 366204773Sjkim 367204773Sjkim1) ACPI CA Core Subsystem: 368204773Sjkim 369204773SjkimFixed a possible problem with the AML Mutex handling function 370204773SjkimAcpiExReleaseMutex where the function could fault under the very rare 371204773Sjkimcondition when the interpreter has blocked, the interpreter lock is released, 372204773Sjkimthe interpreter is then reentered via the same thread, and attempts to 373204773Sjkimacquire an AML mutex that was previously acquired. FreeBSD report 140979. Lin 374204773SjkimMing. 375204773Sjkim 376204773SjkimImplemented additional configuration support for the AML "Debug Object". 377204773SjkimOutput from the debug object can now be enabled via a global variable, 378204773SjkimAcpiGbl_EnableAmlDebugObject. This will assist with remote machine debugging. 379204773SjkimThis debug output is now available in the release version of ACPICA instead 380204773Sjkimof just the debug version. Also, the entire debug output module can now be 381204773Sjkimconfigured out of the ACPICA build if desired. One new file added, 382204773Sjkimexecuter/exdebug.c. Lin Ming, Bob Moore. 383204773Sjkim 384204773SjkimAdded header support for the ACPI MCHI table (Management Controller Host 385204773SjkimInterface Table). This table was added in ACPI 4.0, but the defining document 386204773Sjkimhas only recently become available. 387204773Sjkim 388204773SjkimStandardized output of integer values for ACPICA warnings/errors. Always use 389204773Sjkim0x prefix for hex output, always use %u for unsigned integer decimal output. 390204773SjkimAffects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about 400 391204773Sjkiminvocations.) These invocations were converted from the original 392204773SjkimACPI_DEBUG_PRINT invocations and were not consistent. ACPICA BZ 835. 393204773Sjkim 394204773SjkimExample Code and Data Size: These are the sizes for the OS-independent 395204773Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 396204773Sjkimdebug version of the code includes the debug output trace mechanism and has a 397204773Sjkimmuch larger code and data size. 398204773Sjkim 399204773Sjkim Previous Release: 400204773Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 401204773Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 402204773Sjkim Current Release: 403204773Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 404204773Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 405204773Sjkim 406204773Sjkim2) iASL Compiler/Disassembler and Tools: 407204773Sjkim 408204773SjkimiASL: Implemented typechecking support for static (non-control method) 409204773Sjkimpredefined named objects that are declared with the Name() operator. For 410204773Sjkimexample, the type of this object is now validated to be of type Integer: 411204773SjkimName(_BBN, 1). This change migrates the compiler to using the core predefined 412204773Sjkimname table instead of maintaining a local version. Added a new file, 413204773Sjkimaslpredef.c. ACPICA BZ 832. 414204773Sjkim 415204773SjkimDisassembler: Added support for the ACPI 4.0 MCHI table. 416204773Sjkim 417204773Sjkim---------------------------------------- 418202771Sjkim21 January 2010. Summary of changes for version 20100121: 419202771Sjkim 420202771Sjkim1) ACPI CA Core Subsystem: 421202771Sjkim 422202771SjkimAdded the 2010 copyright to all module headers and signons. This affects 423202771Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, the 424202771Sjkimtools/utilities, and the test suites. 425202771Sjkim 426202771SjkimImplemented a change to the AcpiGetDevices interface to eliminate unnecessary 427202771Sjkiminvocations of the _STA method. In the case where a specific _HID is 428202771Sjkimrequested, do not run _STA until a _HID match is found. This eliminates 429202771Sjkimpotentially dozens of _STA calls during a search for a particular device/HID, 430202771Sjkimwhich in turn can improve boot times. ACPICA BZ 828. Lin Ming. 431202771Sjkim 432202771SjkimImplemented an additional repair for predefined method return values. Attempt 433202771Sjkimto repair unexpected NULL elements within returned Package objects. Create an 434202771SjkimInteger of value zero, a NULL String, or a zero-length Buffer as appropriate. 435202771SjkimACPICA BZ 818. Lin Ming, Bob Moore. 436202771Sjkim 437202771SjkimRemoved the obsolete ACPI_INTEGER data type. This type was introduced as the 438202771Sjkimcode was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with 439202771Sjkim64-bit AML integers). It is now obsolete and this change removes it from the 440202771SjkimACPICA code base, replaced by UINT64. The original typedef has been retained 441202771Sjkimfor now for compatibility with existing device driver code. ACPICA BZ 824. 442202771Sjkim 443202771SjkimRemoved the unused UINT32_STRUCT type, and the obsolete Integer64 field in 444202771Sjkimthe parse tree object. 445202771Sjkim 446202771SjkimAdded additional warning options for the gcc-4 generation. Updated the source 447202771Sjkimaccordingly. This includes some code restructuring to eliminate unreachable 448202771Sjkimcode, elimination of some gotos, elimination of unused return values, some 449202771Sjkimadditional casting, and removal of redundant declarations. 450202771Sjkim 451202771SjkimExample Code and Data Size: These are the sizes for the OS-independent 452202771Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 453202771Sjkimdebug version of the code includes the debug output trace mechanism and has a 454202771Sjkimmuch larger code and data size. 455202771Sjkim 456202771Sjkim Previous Release: 457202771Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 458202771Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 459202771Sjkim Current Release: 460202771Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 461202771Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 462202771Sjkim 463202771Sjkim2) iASL Compiler/Disassembler and Tools: 464202771Sjkim 465202771SjkimNo functional changes for this release. 466202771Sjkim 467202771Sjkim---------------------------------------- 468200553Sjkim14 December 2009. Summary of changes for version 20091214: 469200553Sjkim 470200553Sjkim1) ACPI CA Core Subsystem: 471200553Sjkim 472200553SjkimEnhanced automatic data type conversions for predefined name repairs. This 473200553Sjkimchange expands the automatic repairs/conversions for predefined name return 474200553Sjkimvalues to make Integers, Strings, and Buffers fully interchangeable. Also, a 475200553SjkimBuffer can be converted to a Package of Integers if necessary. The nsrepair.c 476200553Sjkimmodule was completely restructured. Lin Ming, Bob Moore. 477200553Sjkim 478200553SjkimImplemented automatic removal of null package elements during predefined name 479200553Sjkimrepairs. This change will automatically remove embedded and trailing NULL 480200553Sjkimpackage elements from returned package objects that are defined to contain a 481200553Sjkimvariable number of sub-packages. The driver is then presented with a package 482200553Sjkimwith no null elements to deal with. ACPICA BZ 819. 483200553Sjkim 484200553SjkimImplemented a repair for the predefined _FDE and _GTM names. The expected 485200553Sjkimreturn value for both names is a Buffer of 5 DWORDs. This repair fixes two 486200553Sjkimpossible problems (both seen in the field), where a package of integers is 487200553Sjkimreturned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim. 488200553Sjkim 489200553SjkimImplemented additional module-level code support. This change will properly 490200553Sjkimexecute module-level code that is not at the root of the namespace (under a 491200553SjkimDevice object, etc.). Now executes the code within the current scope instead 492200553Sjkimof the root. ACPICA BZ 762. Lin Ming. 493200553Sjkim 494200553SjkimFixed possible mutex acquisition errors when running _REG methods. Fixes a 495200553Sjkimproblem where mutex errors can occur when running a _REG method that is in 496200553Sjkimthe same scope as a method-defined operation region or an operation region 497200553Sjkimunder a module-level IF block. This type of code is rare, so the problem has 498200553Sjkimnot been seen before. ACPICA BZ 826. Lin Ming, Bob Moore. 499200553Sjkim 500200553SjkimFixed a possible memory leak during module-level code execution. An object 501200553Sjkimcould be leaked for each block of executed module-level code if the 502200553Sjkiminterpreter slack mode is enabled This change deletes any implicitly returned 503200553Sjkimobject from the module-level code block. Lin Ming. 504200553Sjkim 505200553SjkimRemoved messages for successful predefined repair(s). The repair mechanism 506200553Sjkimwas considered too wordy. Now, messages are only unconditionally emitted if 507200553Sjkimthe return object cannot be repaired. Existing messages for successful 508200553Sjkimrepairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. 509200553Sjkim 510200553SjkimExample Code and Data Size: These are the sizes for the OS-independent 511200553Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 512200553Sjkimdebug version of the code includes the debug output trace mechanism and has a 513200553Sjkimmuch larger code and data size. 514200553Sjkim 515200553Sjkim Previous Release: 516200553Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 517200553Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 518200553Sjkim Current Release: 519200553Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 520200553Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 521200553Sjkim 522200553Sjkim2) iASL Compiler/Disassembler and Tools: 523200553Sjkim 524200553SjkimiASL: Fixed a regression introduced in 20091112 where intermediate .SRC files 525200553Sjkimwere no longer automatically removed at the termination of the compile. 526200553Sjkim 527200553Sjkimacpiexec: Implemented the -f option to specify default region fill value. 528200553SjkimThis option specifies the value used to initialize buffers that simulate 529200553Sjkimoperation regions. Default value is zero. Useful for debugging problems that 530200553Sjkimdepend on a specific initial value for a region or field. 531200553Sjkim 532200553Sjkim---------------------------------------- 533199337Sjkim12 November 2009. Summary of changes for version 20091112: 534199337Sjkim 535199337Sjkim1) ACPI CA Core Subsystem: 536199337Sjkim 537199337SjkimImplemented a post-order callback to AcpiWalkNamespace. The existing 538199337Sjkiminterface only has a pre-order callback. This change adds an additional 539199337Sjkimparameter for a post-order callback which will be more useful for bus scans. 540199337SjkimACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference. 541199337Sjkim 542199337SjkimModified the behavior of the operation region memory mapping cache for 543199337SjkimSystemMemory. Ensure that the memory mappings created for operation regions 544199337Sjkimdo not cross 4K page boundaries. Crossing a page boundary while mapping 545199337Sjkimregions can cause kernel warnings on some hosts if the pages have different 546199337Sjkimattributes. Such regions are probably BIOS bugs, and this is the workaround. 547199337SjkimLinux BZ 14445. Lin Ming. 548199337Sjkim 549199337SjkimImplemented an automatic repair for predefined methods that must return 550199337Sjkimsorted lists. This change will repair (by sorting) packages returned by _ALR, 551199337Sjkim_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted 552199337Sjkimand do not contain NULL package elements. Adds one new file, 553199337Sjkimnamespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore. 554199337Sjkim 555199337SjkimFixed a possible fault during predefined name validation if a return Package 556199337Sjkimobject contains NULL elements. Also adds a warning if a NULL element is 557199337Sjkimfollowed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may 558199337Sjkiminclude repair or removal of all such NULL elements where possible. 559199337Sjkim 560199337SjkimImplemented additional module-level executable AML code support. This change 561199337Sjkimwill execute module-level code that is not at the root of the namespace 562199337Sjkim(under a Device object, etc.) at table load time. Module-level executable AML 563199337Sjkimcode has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming. 564199337Sjkim 565199337SjkimImplemented a new internal function to create Integer objects. This function 566199337Sjkimsimplifies miscellaneous object creation code. ACPICA BZ 823. 567199337Sjkim 568199337SjkimReduced the severity of predefined repair messages, Warning to Info. Since 569199337Sjkimthe object was successfully repaired, a warning is too severe. Reduced to an 570199337Sjkiminfo message for now. These messages may eventually be changed to debug-only. 571199337SjkimACPICA BZ 812. 572199337Sjkim 573199337SjkimExample Code and Data Size: These are the sizes for the OS-independent 574199337Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 575199337Sjkimdebug version of the code includes the debug output trace mechanism and has a 576199337Sjkimmuch larger code and data size. 577199337Sjkim 578199337Sjkim Previous Release: 579199337Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 580199337Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 581199337Sjkim Current Release: 582199337Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 583199337Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 584199337Sjkim 585199337Sjkim2) iASL Compiler/Disassembler and Tools: 586199337Sjkim 587199337SjkimiASL: Implemented Switch() with While(1) so that Break works correctly. This 588199337Sjkimchange correctly implements the Switch operator with a surrounding While(1) 589199337Sjkimso that the Break operator works as expected. ACPICA BZ 461. Lin Ming. 590199337Sjkim 591199337SjkimiASL: Added a message if a package initializer list is shorter than package 592199337Sjkimlength. Adds a new remark for a Package() declaration if an initializer list 593199337Sjkimexists, but is shorter than the declared length of the package. Although 594199337Sjkimtechnically legal, this is probably a coding error and it is seen in the 595199337Sjkimfield. ACPICA BZ 815. Lin Ming, Bob Moore. 596199337Sjkim 597199337SjkimiASL: Fixed a problem where the compiler could fault after the maximum number 598199337Sjkimof errors was reached (200). 599199337Sjkim 600199337Sjkimacpixtract: Fixed a possible warning for pointer cast if the compiler warning 601199337Sjkimlevel set very high. 602199337Sjkim 603199337Sjkim---------------------------------------- 604198237Sjkim13 October 2009. Summary of changes for version 20091013: 605197104Sjkim 606197104Sjkim1) ACPI CA Core Subsystem: 607197104Sjkim 608198237SjkimFixed a problem where an Operation Region _REG method could be executed more 609198237Sjkimthan once. If a custom address space handler is installed by the host before 610198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 611198237Sjkim_REG methods for that address space could be executed twice. This change 612198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 613198237Sjkim 614198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 615198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 616198237Sjkimoperand object was leaked. Lin Ming. 617198237Sjkim 618198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 619198237Sjkimreturn value is defined as a Field object in the AML, and the field 620198237Sjkimsize is less than or equal to the default width of an integer (32 or 64),_MAT 621198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 622198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 623198237Sjkim 624198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 625198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 626198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 627198237Sjkimambiguity in the ACPI specification. The field should always be a string. 628198237SjkimACPICA now automatically repairs this problem by returning a NULL string 629198237Sjkimwithin the returned Package. ACPICA BZ 807. 630198237Sjkim 631198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 632198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 633198237Sjkimdebug version of the code includes the debug output trace mechanism and has a 634198237Sjkimmuch larger code and data size. 635198237Sjkim 636198237Sjkim Previous Release: 637198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 638198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 639198237Sjkim Current Release: 640198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 641198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 642198237Sjkim 643198237Sjkim2) iASL Compiler/Disassembler and Tools: 644198237Sjkim 645198237SjkimDisassembler: Fixed a problem where references to external symbols that 646198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 647198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 648198237Sjkim 649198237SjkimDisassembler: Restructured the code so that all functions that handle 650198237Sjkimexternal symbols are in a single module. One new file is added, 651198237Sjkimcommon/dmextern.c. 652198237Sjkim 653198237SjkimAML Debugger: Added a max count argument for the Batch command (which 654198237Sjkimexecutes multiple predefined methods within the namespace.) 655198237Sjkim 656198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 657198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 658198237Sjkim 659198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 660198237Sjkimfiles. 661198237Sjkim 662198237Sjkim---------------------------------------- 663198237Sjkim03 September 2009. Summary of changes for version 20090903: 664198237Sjkim 665198237Sjkim1) ACPI CA Core Subsystem: 666198237Sjkim 667197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 668197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 669197104Sjkimtable load time. This support is in addition to the automatic execution of 670197104Sjkim\_SB._INI. Lin Ming. 671197104Sjkim 672197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 673197104Sjkimthe package initializer list is longer than the defined size of the package. 674197104SjkimThis apparently can only happen if the BIOS changes the package size on the 675197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 676197104Sjkiminterpreter will truncate the package to the defined size (and issue an error 677197104Sjkimmessage), but previously could leave the extra objects undeleted if they were 678197104Sjkimpre-created during the argument processing (such is the case if the package 679197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 680197104Sjkim 681197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 682197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 683197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 684197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 685197104Sjkim 686197104SjkimRemoved an extraneous error message for ASL constructs of the form 687197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 688197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 689197104Sjkimemitted when they are encountered. ACPICA BZ 785. 690197104Sjkim 691197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 692197104SjkimPackage object. _DSM can return any type of object, so validation on the 693197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 694197104Sjkim 695197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 696197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 697197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 698197104Sjkimmuch larger code and data size. 699197104Sjkim 700197104Sjkim Previous Release: 701197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 702197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 703197104Sjkim Current Release: 704197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 705197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 706197104Sjkim 707197104Sjkim2) iASL Compiler/Disassembler and Tools: 708197104Sjkim 709197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 710197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 711197104SjkimACPICA BZ 738. 712197104Sjkim 713197104SjkimiASL: Implemented the -I option to specify additional search directories for 714197104Sjkiminclude files. Allows multiple additional search paths for include files. 715197104SjkimDirectories are searched in the order specified on the command line (after 716197104Sjkimthe local directory is searched.) ACPICA BZ 800. 717197104Sjkim 718197104SjkimiASL: Fixed a problem where the full pathname for include files was not 719197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 720197104Sjkimproperly. ACPICA BZ 765. 721197104Sjkim 722197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 723197104Sjkimcontaining additional command line options. ACPICA BZ 801. 724197104Sjkim 725197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 726197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 727197104Sjkimpathname. These features allow all machine tables to be easily loaded and 728197104Sjkimdebugged together. ACPICA BZ 804. 729197104Sjkim 730197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 731197104Sjkimsubtables. 732197104Sjkim 733197104Sjkim---------------------------------------- 734197104Sjkim30 July 2009. Summary of changes for version 20090730: 735197104Sjkim 736197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 737197104Sjkim 738197104Sjkim1) ACPI CA Core Subsystem: 739197104Sjkim 740197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 741197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 742197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 743197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 744197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 745197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 746197104Sjkim 747197104SjkimACPI 4.0: Implemented predefined name validation for all new names. There are 748197104Sjkim31 new names in ACPI 4.0. The predefined validation module was split into two 749197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 750197104Sjkim 751197104SjkimImplemented support for so-called "module-level executable code". This is 752197104Sjkimexecutable AML code that exists outside of any control method and is intended 753197104Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this type 754197104Sjkimof code still exists and is apparently still being created. Blocks of this 755197104Sjkimcode are now detected and executed as intended. Currently, the code blocks 756197104Sjkimmust exist under either an If, Else, or While construct; these are the 757197104Sjkimtypical cases seen in the field. ACPICA BZ 762. Lin Ming. 758197104Sjkim 759197104SjkimImplemented an automatic dynamic repair for predefined names that return 760197104Sjkimnested Package objects. This applies to predefined names that are defined to 761197104Sjkimreturn a variable-length Package of sub-packages. If the number of sub- 762197104Sjkimpackages is one, BIOS code is occasionally seen that creates a simple single 763197104Sjkimpackage with no sub-packages. This code attempts to fix the problem by 764197104Sjkimwrapping a new package object around the existing package. These methods can 765197104Sjkimbe repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 766197104Sjkim790. 767197104Sjkim 768197104SjkimFixed a regression introduced in 20090625 for the AcpiGetDevices interface. 769197104SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA 770197104SjkimBZ 793. 771197104Sjkim 772197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 773197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 774197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 775197104Sjkiminterfaces. 776197104Sjkim 777197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 778197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 779197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 780197104Sjkim(However, some hosts already delete the code that writes this bit, and the 781197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 782197104Sjkim 783197104SjkimFixed a problem where AcpiTerminate could fault if inadvertently called twice 784197104Sjkimin succession. ACPICA BZ 795. 785197104Sjkim 786197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 787197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 788197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 789197104Sjkimmuch larger code and data size. 790197104Sjkim 791197104Sjkim Previous Release: 792197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 793197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 794197104Sjkim Current Release: 795197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 796197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 797197104Sjkim 798197104Sjkim2) iASL Compiler/Disassembler and Tools: 799197104Sjkim 800197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 801197104Sjkimchanges to existing tables. ACPICA BZ 775. 802197104Sjkim 803197104Sjkim---------------------------------------- 804197104Sjkim25 June 2009. Summary of changes for version 20090625: 805197104Sjkim 806197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 807197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 808197104Sjkimcontinue for the next few releases. 809197104Sjkim 810197104Sjkim1) ACPI CA Core Subsystem: 811197104Sjkim 812197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 813197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 814197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 815197104Sjkim773. Lin Ming. 816197104Sjkim 817197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 818197104Sjkimsupport in both the header files and the disassembler. 819197104Sjkim 820197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 821197104SjkimChanges include: 822197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 823197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 824197104Sjkim - Call the _SxW power methods on behalf of a device object. 825197104Sjkim - Determine if a device is a PCI root bridge. 826197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 827197104SjkimThese changes will require an update to all callers of this interface. See 828197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 829197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 830197104Sjkim 831197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 832197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 833197104Sjkimorder to support new ACPI 4.0 tables. These changes will require an update to 834197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 835197104Sjkimdetails. ACPICA BZ 768. 836197104Sjkim 837197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 838197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 839197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 840197104Sjkimparameter, this was removed. ACPICA BZ 778. 841197104Sjkim 842197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 843197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 844197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 845197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 846197104Sjkim 847197104SjkimFixed a problem with predefined method repair code where the code that 848197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 849197104Sjkimthe first time the predefined method is called. The mechanism that disables 850197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 851197104SjkimACPICA BZ 781. 852197104Sjkim 853197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 854197104Sjkimbuffer is automatically converted to an expected string object. 855197104Sjkim 856197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 857197104Sjkimtree head. ACPICA BZ 776. 858197104Sjkim 859197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 860197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 861197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 862197104Sjkimmuch larger code and data size. 863197104Sjkim 864197104Sjkim Previous Release: 865197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 866197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 867197104Sjkim Current Release: 868197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 869197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 870197104Sjkim 871197104Sjkim2) iASL Compiler/Disassembler and Tools: 872197104Sjkim 873197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 874197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 875197104Sjkim 876197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 877197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 878197104Sjkim 879197104Sjkim---------------------------------------- 880193267Sjkim21 May 2009. Summary of changes for version 20090521: 881193267Sjkim 882193267Sjkim1) ACPI CA Core Subsystem: 883193267Sjkim 884193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 885193267SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be 886193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 887193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 888193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 889193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 890193267Sjkimattempts to preserve this bit. 891193267Sjkim 892193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 893193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 894193267Sjkimensure that each package element is actually a sub-package. 895193267Sjkim 896193267SjkimImplemented a new interface to install or override a single control method, 897193267SjkimAcpiInstallMethod. This interface is useful when debugging in order to repair 898193267Sjkiman existing method or to install a missing method without having to override 899193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 900193267Sjkimexamples. Lin Ming, Bob Moore. 901193267Sjkim 902193267SjkimFixed several reference count issues with the DdbHandle object that is 903193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 904193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 905193267SjkimThis is needed because the handle itself may not be deleted after the table 906193267Sjkimunload, depending on whether it has been stored in a named object by the 907193267Sjkimcaller. Lin Ming. 908193267Sjkim 909193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 910193267Sjkimmutexes of the same sync level are acquired but then not released in strict 911193267Sjkimopposite order, the internally maintained Current Sync Level becomes confused 912193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 913193267Sjkim 914193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 915193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 916193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 917193267Sjkimsame as the current sync level. This makes more sense than the previous rule 918193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 919193267Sjkimspecification. 920193267Sjkim 921193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 922193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 923193267SjkimBaumann. 924193267Sjkim 925193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 926193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 927193267Sjkimthrough the installed region handler as they should. 928193267Sjkim 929193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 930193267Sjkimand reduced code for this frequently used function. 931193267Sjkim 932193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 933193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 934193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 935193267Sjkimmuch larger code and data size. 936193267Sjkim 937193267Sjkim Previous Release: 938193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 939193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 940193267Sjkim Current Release: 941193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 942193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 943193267Sjkim 944193267Sjkim2) iASL Compiler/Disassembler and Tools: 945193267Sjkim 946193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 947193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 948193267Sjkimafter an invalid sub-table ID. 949193267Sjkim 950193267Sjkim---------------------------------------- 951193267Sjkim22 April 2009. Summary of changes for version 20090422: 952193267Sjkim 953193267Sjkim1) ACPI CA Core Subsystem: 954193267Sjkim 955193267SjkimFixed a compatibility issue with the recently released I/O port protection 956193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 957193267Sjkimsimply ignore the request and do not return an exception (allow the control 958193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 959193267Sjkimprotected port, read/write the individual ports that are not protected. Linux 960193267SjkimBZ 13036. Lin Ming 961193267Sjkim 962193267SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it actually 963193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 964193267SjkimACPI-defined behavior. 965193267Sjkim 966193267SjkimFixed several possible warnings related to the use of the configurable 967193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 968193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 969193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 970193267SjkimACPICA BZ 766, 767. 971193267Sjkim 972193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 973193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 974193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 975193267Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile for 976193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 977193267Sjkim 978193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 979193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 980193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 981193267Sjkimmuch larger code and data size. 982193267Sjkim 983193267Sjkim Previous Release: 984193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 985193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 986193267Sjkim Current Release: 987193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 988193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 989193267Sjkim 990193267Sjkim2) iASL Compiler/Disassembler and Tools: 991193267Sjkim 992193267SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on 993193267Sjkimthe 64-bit build. 994193267Sjkim 995193267SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could not 996193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 997193267Sjkim 998193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 999193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 1000193267Sjkimbatch compilations. 1001193267Sjkim 1002193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 1003193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 1004193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 1005193267Sjkim 1006193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 1007193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 1008193267Sjkimutilities from the original acpica git source tree structure. 1009193267Sjkim 1010193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 1011193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 1012193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 1013193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 1014193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 1015193267Sjkimexecute fully on Cygwin. 1016193267Sjkim 1017193267Sjkim---------------------------------------- 1018193267Sjkim20 March 2009. Summary of changes for version 20090320: 1019193267Sjkim 1020193267Sjkim1) ACPI CA Core Subsystem: 1021193267Sjkim 1022193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 1023193267Sjkimunloads. Added a reader/writer locking mechanism to allow multiple concurrent 1024193267Sjkimnamespace walks (readers), but block a dynamic table unload until it can gain 1025193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 1026193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 1027193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 1028193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 1029193267Sjkim 1030193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 1031193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 1032193267Sjkim 1033193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 1034193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 1035193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 1036193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 1037193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 1038193267Sjkimis used instead. This now matches the Windows behavior. 1039193267Sjkim 1040193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 1041193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 1042193267Sjkimcode. Adds a new file, hwvalid.c 1043193267Sjkim 1044193267SjkimFixed a possible extraneous warning message from the FADT support. The 1045193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 1046193267Sjkimdefinitions for a register. 1047193267Sjkim 1048193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 1049193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 1050193267Sjkimto validate the entire address range of an operation region, which could be 1051193267Sjkimincorrect if the range included illegal ports, but fields within the 1052193267Sjkimoperation region did not actually access those ports. Validation is now 1053193267Sjkimperformed on a per-field basis instead of the entire region. 1054193267Sjkim 1055193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 1056193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 1057193267Sjkimmeans a read/modify/write when writing to the register. However, for status 1058193267Sjkimregisters, writing a one means clear the event. Writing a zero means preserve 1059193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 1060193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 1061193267Sjkim 1062193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 1063193267Sjkimper the ACPI specification, for the control registers, preserve 1064193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 1065193267Sjkim 1066193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 1067193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 1068193267SjkimACPICA BZ 443. Lin Ming. 1069193267Sjkim 1070193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 1071193267Sjkimwants to reply true to this request. The Windows strings are the only paths 1072193267Sjkimthrough the AML that are tested and known to work properly. 1073193267Sjkim 1074193267Sjkim Previous Release: 1075193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1076193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1077193267Sjkim Current Release: 1078193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1079193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1080193267Sjkim 1081193267Sjkim2) iASL Compiler/Disassembler and Tools: 1082193267Sjkim 1083193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 1084193267Sjkimaetables.c 1085193267Sjkim 1086193267Sjkim---------------------------------------- 1087193267Sjkim20 February 2009. Summary of changes for version 20090220: 1088193267Sjkim 1089193267Sjkim1) ACPI CA Core Subsystem: 1090193267Sjkim 1091193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 1092193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 1093193267Sjkimnot required when reading the single-bit registers. The 1094193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 1095193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 1096193267Sjkim 1097193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 1098193267SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if 1099193267Sjkimthe register has an address of zero. Previously, these cases simply returned 1100193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 1101193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 1102193267Sjkim 1103193267SjkimRenamed the external ACPI bit register access functions. Renamed 1104193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 1105193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 1106193267SjkimAlso, restructured the code for these functions by simplifying the code path 1107193267Sjkimand condensing duplicate code to reduce code size. 1108193267Sjkim 1109193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 1110193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 1111193267Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ 1112193267Sjkim746. 1113193267Sjkim 1114193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 1115193267SjkimThis function writes both of the PM1 control registers (A/B). These registers 1116193267Sjkimare different than the PM1 A/B status and enable registers in that different 1117193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 1118193267Sjkimcan be different, as per the values returned from the _Sx predefined methods. 1119193267Sjkim 1120193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 1121193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 1122193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 1123193267Sjkimregister. ACPICA BZ 751. 1124193267Sjkim 1125193267SjkimSplit out the PM1 Status registers from the FADT. Added new globals for these 1126193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 1127193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 1128193267Sjkimclearer and less prone to error. 1129193267Sjkim 1130193267SjkimFixed the warning message for when the platform contains too many ACPI tables 1131193267Sjkimfor the default size of the global root table data structure. The calculation 1132193267Sjkimfor the truncation value was incorrect. 1133193267Sjkim 1134193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 1135193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 1136193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 1137193267Sjkim 1138193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 1139193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 1140193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 1141193267Sjkim 1142193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 1143193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 1144193267Sjkimincluded for 32-bit hosts. 1145193267Sjkim 1146193267SjkimDebug output: print the input and result for invocations of the _OSI reserved 1147193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 1148193267Sjkimverbosity of this debug level. Len Brown. 1149193267Sjkim 1150193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1151193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1152193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1153193267Sjkimmuch larger code and data size. 1154193267Sjkim 1155193267Sjkim Previous Release: 1156193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1157193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1158193267Sjkim Current Release: 1159193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1160193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1161193267Sjkim 1162193267Sjkim2) iASL Compiler/Disassembler and Tools: 1163193267Sjkim 1164193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 1165193267Sjkimvarious legal performance profiles. 1166193267Sjkim 1167193267Sjkim---------------------------------------- 1168193267Sjkim23 January 2009. Summary of changes for version 20090123: 1169193267Sjkim 1170193267Sjkim1) ACPI CA Core Subsystem: 1171193267Sjkim 1172193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 1173193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1174193267Sjkimthe tools/utilities. 1175193267Sjkim 1176193267SjkimImplemented a change to allow the host to override any ACPI table, including 1177193267Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by the 1178193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 1179193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 1180193267Sjkima table is dynamically loaded via the AML Load operator. 1181193267Sjkim 1182193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 1183193267Sjkim 1184193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 1185193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 1186193267Sjkimwith the actual namespace entry which is itself padded with underscores. 1187193267Sjkim 1188193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1189193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1190193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1191193267Sjkimmuch larger code and data size. 1192193267Sjkim 1193193267Sjkim Previous Release: 1194193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1195193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1196193267Sjkim Current Release: 1197193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1198193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1199193267Sjkim 1200193267Sjkim2) iASL Compiler/Disassembler and Tools: 1201193267Sjkim 1202193267SjkimFix build error under Bison-2.4. 1203193267Sjkim 1204193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 1205193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 1206193267Sjkimincludes the FADT version which first defined each flag. 1207193267Sjkim 1208193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 1209193267SjkimDSDT). Windows only. 1210193267Sjkim 1211193267Sjkim---------------------------------------- 1212193267Sjkim04 December 2008. Summary of changes for version 20081204: 1213193267Sjkim 1214193267Sjkim1) ACPI CA Core Subsystem: 1215193267Sjkim 1216193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 1217193267Sjkimthis release. This includes updates to the external interfaces, OSL 1218193267Sjkiminterfaces, the overview sections, and the debugger reference. 1219193267Sjkim 1220193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 1221193267Sjkimprogrammer reference: 1222193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 1223193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 1224193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 1225193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 1226193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 1227193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 1228193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 1229193267Sjkim 1230193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 1231193267Sjkimfile, components/hardware/hwxface.c 1232193267Sjkim 1233193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 1234193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 1235193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 1236193267Sjkimthere may be some risk in actually trusting the FADT register lengths, a run- 1237193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 1238193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 1239193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 1240193267Sjkimregister length is overridden with the default value. 1241193267Sjkim 1242193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 1243193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 1244193267SjkimPackages. Lin Ming. 1245193267Sjkim 1246193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 1247193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 1248193267Sjkim 1249193267SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes will 1250193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 1251193267Sjkim 1252193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1253193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1254193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1255193267Sjkimmuch larger code and data size. 1256193267Sjkim 1257193267Sjkim Previous Release: 1258193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1259193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1260193267Sjkim Current Release: 1261193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1262193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1263193267Sjkim 1264193267Sjkim2) iASL Compiler/Disassembler and Tools: 1265193267Sjkim 1266193267SjkimiASL: Completed the '-e' option to include additional ACPI tables in order to 1267193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 1268193267SjkimMing. 1269193267Sjkim 1270193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 1271193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 1272193267Sjkim 1273193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 1274193267SjkimBZ 743. 1275193267Sjkim 1276193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 1277193267Sjkim 1278193267Sjkim---------------------------------------- 1279193267Sjkim31 October 2008. Summary of changes for version 20081031: 1280193267Sjkim 1281193267Sjkim1) ACPI CA Core Subsystem: 1282193267Sjkim 1283193267SjkimRestructured the ACPICA header files into public/private. acpi.h now includes 1284193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 1285193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 1286193267Sjkiminclude the commonly used private headers for acpica code generation. Future 1287193267Sjkimplans include moving all private headers to a new subdirectory. 1288193267Sjkim 1289193267SjkimImplemented an automatic Buffer->String return value conversion for 1290193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 1291193267Sjkimconversion for return objects that are required to be a String, but a Buffer 1292193267Sjkimwas found instead. This can happen when reading string battery data from an 1293193267Sjkimoperation region, because it used to be difficult to convert the data from 1294193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 1295193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 1296193267Sjkim 1297193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 1298193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 1299193267Sjkimrequired because the host OS must setup the wake much differently for each 1300193267Sjkimvector (real vs. protected mode, etc.) and the interface itself should not be 1301193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 1302193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 1303193267Sjkimonly writes the vector.) ACPICA BZ 731. 1304193267Sjkim 1305193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 1306193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 1307193267SjkimThis can occur in poorly written AML when the hardware does not respond 1308193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 1309193267Sjkimloop count is configurable. A new exception code is returned when a loop is 1310193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 1311193267Sjkim 1312193267SjkimOptimized the execution of AML While loops. Previously, a control state 1313193267Sjkimobject was allocated and freed for each execution of the loop. The 1314193267Sjkimoptimization is to simply reuse the control state for each iteration. This 1315193267Sjkimspeeds up the raw loop execution time by about 5%. 1316193267Sjkim 1317193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 1318193267Sjkimimplicit integer of value zero for methods that contain no executable code. 1319193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 1320193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 1321193267Sjkim 1322193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 1323193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 1324193267Sjkimis seen in the field) because of the use of a double-backslash in strings 1325193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 1326193267SjkimLin Ming. 1327193267Sjkim 1328193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 1329193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 1330193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 1331193267Sjkim 1332193267SjkimConsolidated the method argument count validation code. Merged the code that 1333193267Sjkimvalidates control method argument counts into the predefined validation 1334193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 1335193267Sjkim 1336193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 1337193267Sjkimhandler installation, and calling a control method. Available at 1338193267Sjkimsource/tools/examples. 1339193267Sjkim 1340193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 1341193267Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS access. 1342193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 1343193267SjkimVector(s). 1344193267Sjkim 1345193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1346193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1347193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1348193267Sjkimmuch larger code and data size. 1349193267Sjkim 1350193267Sjkim Previous Release: 1351193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1352193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1353193267Sjkim Current Release: 1354193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1355193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1356193267Sjkim 1357193267Sjkim2) iASL Compiler/Disassembler and Tools: 1358193267Sjkim 1359193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 1360193267Sjkimallow the inclusion of additional ACPI tables to help with the disassembly of 1361193267Sjkimmethod invocations and the generation of external declarations during the 1362193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 1363193267Sjkimproperly without the actual declaration of the method. Use the -e option to 1364193267Sjkiminclude the table where the external method(s) are actually declared. Most 1365193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 1366193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 1367193267Sjkim-e dsdt.aml ssdt1.aml 1368193267Sjkim 1369193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 1370193267Sjkimproblem where the use of an alias within a namepath would result in a not 1371193267Sjkimfound error or cause the compiler to fault. Also now allows forward 1372193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 1373193267Sjkim 1374193267Sjkim---------------------------------------- 1375193267Sjkim26 September 2008. Summary of changes for version 20080926: 1376193267Sjkim 1377193267Sjkim1) ACPI CA Core Subsystem: 1378193267Sjkim 1379193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 1380193267Sjkimobjects. This code validates the predefined ACPI objects (objects whose names 1381193267Sjkimstart with underscore) that appear in the namespace, at the time they are 1382193267Sjkimevaluated. The argument count and the type of the returned object are 1383193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 1384193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 1385193267Sjkimthe results are returned to the ACPI-related drivers. Future enhancements may 1386193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 1387193267Sjkimfiles are nspredef.c and acpredef.h. 1388193267Sjkim 1389193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 1390193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 1391193267Sjkim 1392193267SjkimFixed an issue with implicit return compatibility. This change improves the 1393193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 1394193267SjkimMing, ACPICA BZ 349. 1395193267Sjkim 1396193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 1397193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 1398193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 1399193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 1400193267Sjkim 1401193267SjkimFixed two possible memory leaks in the error exit paths of 1402193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 1403193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 1404193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 1405193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 1406193267Sjkim 1407193267SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global 1408193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 1409193267SjkimMoore ACPICA BZ 442. 1410193267Sjkim 1411193267SjkimRemoved the obsolete version number in module headers. Removed the 1412193267Sjkim"$Revision" number that appeared in each module header. This version number 1413193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 1414193267Sjkimonly incorrect, it could also be misleading. 1415193267Sjkim 1416193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1417193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1418193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1419193267Sjkimmuch larger code and data size. 1420193267Sjkim 1421193267Sjkim Previous Release: 1422193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1423193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1424193267Sjkim Current Release: 1425193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1426193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1427193267Sjkim 1428193267Sjkim---------------------------------------- 1429193267Sjkim29 August 2008. Summary of changes for version 20080829: 1430193267Sjkim 1431193267Sjkim1) ACPI CA Core Subsystem: 1432193267Sjkim 1433193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 1434193267SjkimReference. Changes include the elimination of cheating on the Object field 1435193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 1436193267Sjkimdifferentiate the various reference types (instead of an AML opcode), and the 1437193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 1438193267Sjkim 1439193267SjkimReduce an error to a warning for an incorrect method argument count. 1440193267SjkimPreviously aborted with an error if too few arguments were passed to a 1441193267Sjkimcontrol method via the external ACPICA interface. Now issue a warning instead 1442193267Sjkimand continue. Handles the case where the method inadvertently declares too 1443193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 1444193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 1445193267Sjkim 1446193267SjkimDisallow the evaluation of named object types with no intrinsic value. Return 1447193267SjkimAE_TYPE for objects that have no value and therefore evaluation is undefined: 1448193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 1449193267Sjkimthese types were allowed, but an exception would be generated at some point 1450193267Sjkimduring the evaluation. Now, the error is generated up front. 1451193267Sjkim 1452193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 1453193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 1454193267Sjkim 1455193267SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug 1456193267Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION 1457193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 1458193267SjkimACPI_LV_EVENTS. 1459193267Sjkim 1460193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 1461193267SjkimThere is the possibility that certain device drivers may be affected if they 1462193267Sjkimuse any of these exceptions. 1463193267Sjkim 1464193267SjkimThe ACPICA documentation has been added to the public git source tree, under 1465193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 1466193267Sjkimcompiler reference, and the changes.txt release logfile. 1467193267Sjkim 1468193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1469193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1470193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1471193267Sjkimmuch larger code and data size. 1472193267Sjkim 1473193267Sjkim Previous Release: 1474193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1475193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1476193267Sjkim Current Release: 1477193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1478193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1479193267Sjkim 1480193267Sjkim2) iASL Compiler/Disassembler and Tools: 1481193267Sjkim 1482193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 1483193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 1484193267Sjkimargument. iASL now allows both definitions. 1485193267Sjkim 1486193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 1487193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 1488193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 1489193267Sjkimproperly. 1490193267Sjkim 1491193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 1492193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 1493193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 1494193267Sjkimheader. 1495193267Sjkim 1496193267Sjkim---------------------------------------- 1497193267Sjkim 1498193267Sjkim29 July 2008. Summary of changes for version 20080729: 1499193267Sjkim 1500193267Sjkim1) ACPI CA Core Subsystem: 1501193267Sjkim 1502193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 1503193267SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt 1504193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 1505193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 1506193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 1507193267Sjkim 1508193267SjkimAdd a function to dereference returned reference objects. Examines the return 1509193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 1510193267Sjkimautomatically dereferenced in an attempt to return something useful (these 1511193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 1512193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 1513193267Sjkim 1514193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 1515193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 1516193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 1517193267SjkimSpecification, June 2008. 1518193267Sjkim 1519193267SjkimAdditional error checking for pathname utilities. Add error check after all 1520193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 1521193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 1522193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 1523193267Sjkim 1524193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 1525193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 1526193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 1527193267Sjkim 1528193267SjkimAdd a function to decode reference object types to strings. Created for 1529193267Sjkimimproved error messages. 1530193267Sjkim 1531193267SjkimImprove object conversion error messages. Better error messages during object 1532193267Sjkimconversion from internal to the external ACPI_OBJECT. Used for external calls 1533193267Sjkimto AcpiEvaluateObject. 1534193267Sjkim 1535193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1536193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1537193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1538193267Sjkimmuch larger code and data size. 1539193267Sjkim 1540193267Sjkim Previous Release: 1541193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1542193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1543193267Sjkim Current Release: 1544193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1545193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1546193267Sjkim 1547193267Sjkim2) iASL Compiler/Disassembler and Tools: 1548193267Sjkim 1549193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 1550193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 1551193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 1552193267Sjkimexistent parameters. 1553193267Sjkim 1554193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 1555193267Sjkimappear in a disassembled ASL file if they were emitted by the original 1556193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 1557193267Sjkimmanually change these names, issue a remark instead. 1558193267Sjkim 1559193267SjkimiASL: error if named object created in while loop. Emit an error if any named 1560193267Sjkimobject is created within a While loop. If allowed, this code will generate a 1561193267Sjkimrun-time error on the second iteration of the loop when an attempt is made to 1562193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 1563193267Sjkim 1564193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 1565193267Sjkimpathnames within the Include operator. previously, only relative pathnames 1566193267Sjkimwere supported. 1567193267Sjkim 1568193267SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor. 1569193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 1570193267Sjkim 1571193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 1572193267SjkimHandles the case for the Interrupt Resource Descriptor where 1573193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 1574193267Sjkimis present. Now leave room for the Index. BZ 426 1575193267Sjkim 1576193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 1577193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 1578193267Sjkim 1579193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 1580193267Sjkim(get ACPI tables on Windows). This was apparently broken in version 20070919. 1581193267Sjkim 1582193267SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case where 1583193267Sjkimthe EOF happens immediately after the last table in the input file. Print 1584193267Sjkimcompletion message. Previously, no message was displayed in this case. 1585193267Sjkim 1586193267Sjkim---------------------------------------- 1587193267Sjkim01 July 2008. Summary of changes for version 20080701: 1588193267Sjkim 1589193267Sjkim0) Git source tree / acpica.org 1590193267Sjkim 1591193267SjkimFixed a problem where a git-clone from http would not transfer the entire 1592193267Sjkimsource tree. 1593193267Sjkim 1594193267Sjkim1) ACPI CA Core Subsystem: 1595193267Sjkim 1596193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 1597193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 1598193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 1599193267Sjkimenabling of GPEs if a rogue GPE is received during initialization (before GPE 1600193267Sjkimhandlers are installed.) 1601193267Sjkim 1602193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 1603193267Sjkimloaded tables were simply mapped - but on some machines this memory is 1604193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 1605193267SjkimOpRegion case, added checksum verify. Use the table length from the table 1606193267Sjkimheader, not the region length. For the Buffer case, use the table length 1607193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 1608193267Sjkim 1609193267SjkimFixed a problem where the same ACPI table could not be dynamically loaded and 1610193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 1611193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 1612193267Sjkimunregister a table upon an unload. During a load, if the same table is found, 1613193267Sjkimthis no longer returns an exception. BZ 722 1614193267Sjkim 1615193267SjkimFixed a problem where the wrong descriptor length was calculated for the 1616193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 1617193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 1618193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 1619193267Sjkimby Linn Crosetto. BZ 728 1620193267Sjkim 1621193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 1622193267Sjkimby Load() did not have its reference count decremented during unload, leading 1623193267Sjkimto a memory leak. Lin Ming. BZ 727 1624193267Sjkim 1625193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 1626193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 1627193267SjkimSuietov. BZ 506 1628193267Sjkim 1629193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 1630193267Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only. 1631193267SjkimVegard Nossum. BZ 726 1632193267Sjkim 1633193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 1634193267Sjkimarguments if the object is a control method. Added this call to the debugger 1635193267Sjkimso the proper number of default arguments are passed to a method. This 1636193267Sjkimprevents a warning when executing methods from AcpiExec. 1637193267Sjkim 1638193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 1639193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 1640193267Sjkim 1641193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 1642193267Sjkim 1643193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1644193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1645193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1646193267Sjkimmuch larger code and data size. 1647193267Sjkim 1648193267Sjkim Previous Release: 1649193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1650193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1651193267Sjkim Current Release: 1652193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1653193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1654193267Sjkim 1655193267Sjkim2) iASL Compiler/Disassembler and Tools: 1656193267Sjkim 1657193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 1658193267Sjkimresource descriptor names. 1659193267Sjkim 1660193267SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed the 1661193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 1662193267Sjkimcharacters in the input. BZ 441 1663193267Sjkim 1664193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 1665193267Sjkim"result of operation not used" warning when the DDB handle returned from 1666193267SjkimLoadTable is not used. The warning is not needed. BZ 590 1667193267Sjkim 1668193267SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to 1669193267Sjkimpass address of table to the AML. Added option to disable OpRegion simulation 1670193267Sjkimto allow creation of an OpRegion with a real address that was passed to _CFG. 1671193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 1672193267Sjkim 1673193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 1674193267Sjkimand use the standard table header output routine. 1675193267Sjkim 1676193267Sjkim---------------------------------------- 1677193267Sjkim09 June 2008. Summary of changes for version 20080609: 1678193267Sjkim 1679193267Sjkim1) ACPI CA Core Subsystem: 1680193267Sjkim 1681193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 1682193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 1683193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 1684193267Sjkimwith MS ACPI. BZ 6859 1685193267Sjkim 1686193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 1687193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 1688193267SjkimAcpiGetRegisterUnlocked. 1689193267Sjkim 1690193267SjkimFixed a problem where the invocation of a GPE control method could hang. This 1691193267Sjkimwas a regression introduced in 20080514. The new method argument count 1692193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 1693193267Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE block 1694193267Sjkiminformation to the notify handler via the control method parameter pointer. 1695193267Sjkim 1696193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 1697193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 1698193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 1699193267Sjkimreturned. BZ 716 1700193267Sjkim 1701193267SjkimFixed a problem where a deleted object could be accessed from within the AML 1702193267Sjkimparser. This was a regression introduced in version 20080123 as a fix for the 1703193267SjkimUnload operator. Lin Ming. BZ 10669 1704193267Sjkim 1705193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 1706193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 1707193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 1708193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 1709193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 1710193267Sjkim 1711193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 1712193267Sjkimpath did not delete a locally allocated structure. 1713193267Sjkim 1714193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 1715193267Sjkimcurrent specifications. Includes disassembler support. 1716193267Sjkim 1717193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 1718193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 1719193267Sjkimone mutex. Linn Crosetto 1720193267Sjkim 1721193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1722193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1723193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1724193267Sjkimmuch larger code and data size. 1725193267Sjkim 1726193267Sjkim Previous Release: 1727193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1728193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1729193267Sjkim Current Release: 1730193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1731193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1732193267Sjkim 1733193267Sjkim2) iASL Compiler/Disassembler and Tools: 1734193267Sjkim 1735193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 1736193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 1737193267Sjkimmultiple integers within _CID packages. Includes single-step support for 1738193267Sjkimdebugger also. 1739193267Sjkim 1740193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 1741193267Sjkim 1742193267Sjkim---------------------------------------- 1743193267Sjkim14 May 2008. Summary of changes for version 20080514: 1744193267Sjkim 1745193267Sjkim1) ACPI CA Core Subsystem: 1746193267Sjkim 1747193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 1748193267Sjkiminitialization. This could lead to "handler not installed" errors on some 1749193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 1750193267Sjkimensures that all operation regions and devices throughout the namespace have 1751193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 1752193267Sjkim 1753193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 1754193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 1755193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 1756193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 1757193267SjkimLuming Yu, BZ 1653. 1758193267Sjkim 1759193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 1760193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 1761193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 1762193267Sjkimthe ACPICA code. 1763193267Sjkim 1764193267SjkimFixed a problem with the Field operator where zero-length fields would return 1765193267Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL 1766193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 1767193267Sjkim 1768193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 1769193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 1770193267Sjkimloaded at the namespace root even though this goes against the ACPI 1771193267Sjkimspecification. This provides compatibility with other ACPI implementations. 1772193267SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming. 1773193267Sjkim 1774193267SjkimFixed a problem where ACPICA would not Load() tables with unusual signatures. 1775193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 1776193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 1777193267SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts such 1778193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 1779193267Sjkim 1780193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 1781193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 1782193267SjkimSubStatus field. 1783193267Sjkim 1784193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 1785193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 1786193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 1787193267Sjkim 1788193267SjkimImplemented argument count checking in control method invocation via 1789193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 1790193267Sjkimmany. This applies only to extern programmatic control method execution, not 1791193267Sjkimmethod-to-method calls within the AML. Lin Ming. 1792193267Sjkim 1793193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 1794193267Sjkimlonger needed, especially with the removal of 16-bit support. It was replaced 1795193267Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on 1796193267Sjkim32/64-bit platforms is required. 1797193267Sjkim 1798193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 1799193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 1800193267Sjkim 1801193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1802193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1803193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1804193267Sjkimmuch larger code and data size. 1805193267Sjkim 1806193267Sjkim Previous Release: 1807193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1808193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1809193267Sjkim Current Release: 1810193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1811193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1812193267Sjkim 1813193267Sjkim2) iASL Compiler/Disassembler and Tools: 1814193267Sjkim 1815193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 1816193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 1817193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 1818193267Sjkim 1819193267Sjkim---------------------------------------- 1820193267Sjkim21 March 2008. Summary of changes for version 20080321: 1821193267Sjkim 1822193267Sjkim1) ACPI CA Core Subsystem: 1823193267Sjkim 1824193267SjkimImplemented an additional change to the GPE support in order to suppress 1825193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 1826193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 1827193267Sjkimthe GPE is unknown to the system. This should prevent future interrupt floods 1828193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 1829193267Sjkim 1830193267SjkimFixed a problem where NULL package elements were not returned to the 1831193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 1832193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 1833193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 1834193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 1835193267Sjkim 1836193267SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword, 1837193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 1838193267Sjkiman executing control method. In this case, these operators created namespace 1839193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 1840193267Sjkimtemporary nodes. This could cause a problem if there is race condition 1841193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 1842193267SjkimLinn Crosetto) 1843193267Sjkim 1844193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 1845193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 1846193267Sjkimgenerated. 1847193267Sjkim 1848193267SjkimImplemented several changes for Notify handling. Added support for new Notify 1849193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 1850193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 1851193267Sjkim(Bob Moore, Zhang Rui) 1852193267Sjkim 1853193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 1854193267Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for 1855193267SjkimNULL objects - either NULL package elements or unresolved named references. 1856193267Sjkim 1857193267SjkimFixed a problem where an extraneous debug message was produced for package 1858193267Sjkimobjects (when debugging enabled). The message "Package List length larger 1859193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 1860193267Sjkimerror message rather than a debug message. Added a debug message for the 1861193267Sjkimopposite case, where NumElements is larger than the Package List (the package 1862193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 1863193267Sjkim 1864193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 1865193267Sjkimclarify and keep all data for a given object on one output line. 1866193267Sjkim 1867193267SjkimFixed two size calculation issues with the variable-length Start Dependent 1868193267Sjkimresource descriptor. 1869193267Sjkim 1870193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1871193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1872193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1873193267Sjkima much larger code and data size. 1874193267Sjkim 1875193267Sjkim Previous Release: 1876193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1877193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1878193267Sjkim Current Release: 1879193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1880193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1881193267Sjkim 1882193267Sjkim2) iASL Compiler/Disassembler and Tools: 1883193267Sjkim 1884193267SjkimFixed a problem with the use of the Switch operator where execution of the 1885193267Sjkimcontaining method by multiple concurrent threads could cause an 1886193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 1887193267Sjkimactual Switch opcode, it must be simulated with local named temporary 1888193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 1889193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 1890193267Sjkim 1891193267Sjkim---------------------------------------- 1892193267Sjkim13 February 2008. Summary of changes for version 20080213: 1893193267Sjkim 1894193267Sjkim1) ACPI CA Core Subsystem: 1895193267Sjkim 1896193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 1897193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 1898193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 1899193267Sjkimbehind all pending notify requests (may require changes to the local host OSL 1900193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 1901193267Sjkim 1902193267SjkimFixed a problem where buffer and package objects passed as arguments to a 1903193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 1904193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 1905193267Sjkimexecuted by the target control method. 1906193267Sjkim 1907193267SjkimFixed a problem where resource descriptor size optimization could cause a 1908193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 1909193267Sjkimresource template must use the same descriptors (with the same size) as 1910193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 1911193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 1912193267Sjkim 1913193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 1914193267Sjkimobjects did not perform an implicit conversion as it should. These types must 1915193267Sjkimretain their initial type permanently as per the ACPI specification. However, 1916193267Sjkima CopyObject to all other object types should not perform an implicit 1917193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 1918193267Sjkim 1919193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 1920193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 1921193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 1922193267Sjkim 1923193267SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was 1924193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 1925193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 1926193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 1927193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 1928193267Sjkiminefficient compilers. 1929193267Sjkim 1930193267SjkimAdded missing va_end statements that should correspond with each va_start 1931193267Sjkimstatement. 1932193267Sjkim 1933193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1934193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1935193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1936193267Sjkima much larger code and data size. 1937193267Sjkim 1938193267Sjkim Previous Release: 1939193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 1940193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 1941193267Sjkim Current Release: 1942193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1943193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1944193267Sjkim 1945193267Sjkim2) iASL Compiler/Disassembler and Tools: 1946193267Sjkim 1947193267SjkimImplemented full disassembler support for the following new ACPI tables: 1948193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 1949193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 1950193267SjkimArchitecture (WHEA). 1951193267Sjkim 1952193267Sjkim---------------------------------------- 1953193267Sjkim23 January 2008. Summary of changes for version 20080123: 1954193267Sjkim 1955193267Sjkim1) ACPI CA Core Subsystem: 1956193267Sjkim 1957193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 1958193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1959193267Sjkimthe tools/utilities. 1960193267Sjkim 1961193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 1962193267Sjkimobjects. These objects have deferred execution for some arguments, and the 1963193267Sjkimexecution is now completed before the SizeOf is executed. This problem caused 1964193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 1965193267Sjkim9558 1966193267Sjkim 1967193267SjkimImplemented an enhancement to the interpreter "slack mode". In the absence of 1968193267Sjkiman explicit return or an implicitly returned object from the last executed 1969193267Sjkimopcode, a control method will now implicitly return an integer of value 0 for 1970193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 1971193267Sjkim 1972193267SjkimFixed a problem with the Load operator where an exception was not returned in 1973193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 1974193267Sjkim 1975193267SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as per 1976193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 1977193267Sjkim 1978193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 1979193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 1980193267Sjkim 1981193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 1982193267Sjkiminput strings could cause unexpected failures if they were shorter than the 1983193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 1984193267Sjkim 1985193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 1986193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 1987193267Sjkim 1988193267SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST, 1989193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 1990193267Sjkim 1991193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1992193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1993193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1994193267Sjkima much larger code and data size. 1995193267Sjkim 1996193267Sjkim Previous Release: 1997193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 1998193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 1999193267Sjkim Current Release: 2000193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2001193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2002193267Sjkim 2003193267Sjkim2) iASL Compiler/Disassembler and Tools: 2004193267Sjkim 2005193267SjkimImplemented support in the disassembler for checksum validation on incoming 2006193267Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the table 2007193267Sjkimheader dump at the start of the disassembly. 2008193267Sjkim 2009193267SjkimImplemented additional debugging information in the namespace listing file 2010193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 2011193267Sjkimpathname to each namespace object is displayed. 2012193267Sjkim 2013193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 2014193267Sjkimfaults or infinite loops. 2015193267Sjkim 2016193267SjkimFixed an unexpected parse error when using the optional "parameter types" 2017193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 2018193267Sjkim 2019193267SjkimFixed a problem where two External declarations with the same name did not 2020193267Sjkimcause an error (Lin Ming) BZ 509 2021193267Sjkim 2022193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 2023193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 2024193267SjkimMing) BZ 583,587 2025193267Sjkim 2026193267Sjkim---------------------------------------- 2027193267Sjkim19 December 2007. Summary of changes for version 20071219: 2028193267Sjkim 2029193267Sjkim1) ACPI CA Core Subsystem: 2030193267Sjkim 2031193267SjkimImplemented full support for deferred execution for the TermArg string 2032193267Sjkimarguments for DataTableRegion. This enables forward references and full 2033193267Sjkimoperand resolution for the three string arguments. Similar to OperationRegion 2034193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 2035193267Sjkim 2036193267SjkimImplemented full argument resolution support for the BankValue argument to 2037193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 2038193267Sjkimused. Lin Ming BZ 387, 393 2039193267Sjkim 2040193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 2041193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 2042193267Sjkimspecification, the search down the current branch is terminated if a device 2043193267Sjkimis both not present and not functional (instead of just not present.) Yakui 2044193267SjkimZhao. 2045193267Sjkim 2046193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 2047193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 2048193267Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled 2049193267Sjkiminstead of simply ignored. Rui Zhang. 2050193267Sjkim 2051193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 2052193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 2053193267Sjkim 2054193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 2055193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 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: 79.0K Code, 17.2K Data, 96.2K Total 2064193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2065193267Sjkim Current Release: 2066193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2067193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2068193267Sjkim 2069193267Sjkim---------------------------------------- 2070193267Sjkim14 November 2007. Summary of changes for version 20071114: 2071193267Sjkim 2072193267Sjkim1) ACPI CA Core Subsystem: 2073193267Sjkim 2074193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 2075193267Sjkim(interrupt) itself, and control methods executed. Named 2076193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 2077193267Sjkimshould be useful for debugging and statistics. 2078193267Sjkim 2079193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 2080193267Sjkimcontents of the various event counters. Returns the current values for 2081193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 2082193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 2083193267Sjkimare added. Device drivers should use this interface rather than access the 2084193267Sjkimcounters directly. 2085193267Sjkim 2086193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 2087193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 2088193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 2089193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 2090193267Sjkim 2091193267SjkimFixed a problem with Index references passed as method arguments. References 2092193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 2093193267Sjkimcontrol was passed to the called method). The references are now correctly 2094193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 2095193267Sjkim 2096193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 2097193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 2098193267Sjkimnow correctly copied. BZ 5391. Lin Ming 2099193267Sjkim 2100193267SjkimFixed a problem with Control Method references within Package objects. These 2101193267Sjkimreferences are now correctly generated. This completes the package 2102193267Sjkimconstruction overhaul that began in version 20071019. 2103193267Sjkim 2104193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2105193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2106193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2107193267Sjkima much larger code and data size. 2108193267Sjkim 2109193267Sjkim Previous Release: 2110193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2111193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2112193267Sjkim Current Release: 2113193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2114193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2115193267Sjkim 2116193267Sjkim 2117193267Sjkim2) iASL Compiler/Disassembler and Tools: 2118193267Sjkim 2119193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 2120193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 2121193267SjkimPCIBARTarget. 2122193267Sjkim 2123193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 2124193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 2125193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 2126193267Sjkimand Bob Moore 2127193267Sjkim 2128193267Sjkim---------------------------------------- 2129193267Sjkim19 October 2007. Summary of changes for version 20071019: 2130193267Sjkim 2131193267Sjkim1) ACPI CA Core Subsystem: 2132193267Sjkim 2133193267SjkimFixed a problem with the Alias operator when the target of the alias is a 2134193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 2135193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 2136193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 2137193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 2138193267Sjkim 2139193267SjkimFixed a problem with the Package operator where all named references were 2140193267Sjkimcreated as object references and left otherwise unresolved. According to the 2141193267SjkimACPI specification, a Package can only contain Data Objects or references to 2142193267Sjkimcontrol methods. The implication is that named references to Data Objects 2143193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 2144193267Sjkimimmediately upon package creation. This is the approach taken with this 2145193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 2146193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 2147193267Sjkim 2148193267SjkimReverted a change to Notify handling that was introduced in version 2149193267Sjkim20070508. This version changed the Notify handling from asynchronous to 2150193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 2151193267SjkimASL operator). It was found that this change caused more problems than it 2152193267Sjkimsolved and was removed by most users. 2153193267Sjkim 2154193267SjkimFixed a problem with the Increment and Decrement operators where the type of 2155193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 2156193267SjkimLin Ming. 2157193267Sjkim 2158193267SjkimFixed a problem with the Load and LoadTable operators where the table 2159193267Sjkimlocation within the namespace was ignored. Instead, the table was always 2160193267Sjkimloaded into the root or current scope. Lin Ming. 2161193267Sjkim 2162193267SjkimFixed a problem with the Load operator when loading a table from a buffer 2163193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 2164193267Sjkim 2165193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 2166193267Sjkimobject to the Debug object could cause a fault. 2167193267Sjkim 2168193267SjkimAdded a table checksum verification for the Load operator, in the case where 2169193267Sjkimthe load is from a buffer. (BZ 578). 2170193267Sjkim 2171193267SjkimImplemented additional parameter validation for the LoadTable operator. The 2172193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 2173193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 2174193267Sjkim 2175193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2176193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2177193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2178193267Sjkima much larger code and data size. 2179193267Sjkim 2180193267Sjkim Previous Release: 2181193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2182193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2183193267Sjkim Current Release: 2184193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2185193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2186193267Sjkim 2187193267Sjkim 2188193267Sjkim2) iASL Compiler/Disassembler: 2189193267Sjkim 2190193267SjkimFixed a problem where if a single file was specified and the file did not 2191193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 2192193267Sjkimversion 20070917.) 2193193267Sjkim 2194193267Sjkim---------------------------------------- 2195193267Sjkim19 September 2007. Summary of changes for version 20070919: 2196193267Sjkim 2197193267Sjkim1) ACPI CA Core Subsystem: 2198193267Sjkim 2199193267SjkimDesigned and implemented new external interfaces to install and remove 2200193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 2201193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 2202193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 2203193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 2204193267Sjkim 2205193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 2206193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 2207193267Sjkiminitialization. (Bob Moore) BZ 8171 2208193267Sjkim 2209193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 2210193267SjkimProcessor, PowerResource) can be not found if they are declared and 2211193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 2212193267Sjkim 2213193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2214193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2215193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2216193267Sjkima much larger code and data size. 2217193267Sjkim 2218193267Sjkim Previous Release: 2219193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2220193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2221193267Sjkim Current Release: 2222193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2223193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2224193267Sjkim 2225193267Sjkim 2226193267Sjkim2) iASL Compiler/Disassembler: 2227193267Sjkim 2228193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 2229193267Sjkimsingle invocation. This includes command line wildcard support for both the 2230193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 2231193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 2232193267Sjkim 2233193267Sjkim---------------------------------------- 2234193267Sjkim08 May 2007. Summary of changes for version 20070508: 2235193267Sjkim 2236193267Sjkim1) ACPI CA Core Subsystem: 2237193267Sjkim 2238193267SjkimImplemented a Microsoft compatibility design change for the handling of the 2239193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 2240193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 2241193267Sjkimstill executes the notify handlers in a different thread, but the original 2242193267Sjkimthread that executed the Notify() now waits at a synchronization point for 2243193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 2244193267Sjkimoperator in order to operate correctly. 2245193267Sjkim 2246193267SjkimImplemented support to allow Package objects to be passed as method 2247193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 2248193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 2249193267Sjkimimplemented since there were no reserved control methods that required it 2250193267Sjkimuntil recently. 2251193267Sjkim 2252193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 2253193267Sjkimcontained invalid non-zero values in reserved fields could cause later 2254193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 2255193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 2256193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 2257193267Sjkim 2258193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 2259193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 2260193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 2261193267SjkimLiu. 2262193267Sjkim 2263193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 2264193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 2265193267Sjkimlist. Reported by Linn Crosetto. 2266193267Sjkim 2267193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2268193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2269193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2270193267Sjkima much larger code and data size. 2271193267Sjkim 2272193267Sjkim Previous Release: 2273193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2274193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2275193267Sjkim Current Release: 2276193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2277193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2278193267Sjkim 2279193267Sjkim---------------------------------------- 2280167802Sjkim20 March 2007. Summary of changes for version 20070320: 2281167802Sjkim 2282167802Sjkim1) ACPI CA Core Subsystem: 2283167802Sjkim 2284193267SjkimImplemented a change to the order of interpretation and evaluation of AML 2285193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 2286193267Sjkimoperands in the order that they appear in the AML stream (and the 2287193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 2288193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 2289193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 2290193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 2291167802Sjkim 2292193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 2293193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 2294193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 2295193267Sjkimas well as the internal use of the global lock to support AML fields -- a 2296193267Sjkimcontrol method that is holding the global lock can now simultaneously access 2297193267SjkimAML fields that require global lock protection. Previously, in both cases, 2298193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 2299193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 2300193267SjkimController. There is no change to the behavior of the AML Acquire operator, 2301193267Sjkimas this can already be used to acquire a mutex multiple times by the same 2302193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 2303167802Sjkim 2304193267SjkimFixed a problem where invalid objects could be referenced in the AML 2305193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 2306193267Sjkimthe internal "Return Object" field is cleared on error and only valid 2307193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 2308193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 2309167802Sjkim 2310193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 2311193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 2312193267SjkimPodrezov. 2313167802Sjkim 2314193267SjkimFixed an internal problem with the handling of result objects on the 2315193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 2316167802Sjkim 2317193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 2318193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 2319193267Sjkim7874. Valery Podrezov. 2320167802Sjkim 2321193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 2322193267Sjkimremnant from the previously discontinued 16-bit support. 2323167802Sjkim 2324193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2325193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2326193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2327193267Sjkima much larger code and data size. 2328167802Sjkim 2329167802Sjkim Previous Release: 2330167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2331167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2332167802Sjkim Current Release: 2333167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2334167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2335167802Sjkim 2336167802Sjkim---------------------------------------- 2337167802Sjkim26 January 2007. Summary of changes for version 20070126: 2338167802Sjkim 2339167802Sjkim1) ACPI CA Core Subsystem: 2340167802Sjkim 2341193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 2342193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2343193267Sjkimthe utilities. 2344167802Sjkim 2345193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 2346193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 2347193267Sjkimoverridden, causing a fault in this case. 2348167802Sjkim 2349193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2350193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2351193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2352193267Sjkima much larger code and data size. 2353167802Sjkim 2354167802Sjkim Previous Release: 2355167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2356167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2357167802Sjkim Current Release: 2358167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2359167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2360167802Sjkim 2361167802Sjkim---------------------------------------- 2362167802Sjkim15 December 2006. Summary of changes for version 20061215: 2363167802Sjkim 2364167802Sjkim1) ACPI CA Core Subsystem: 2365167802Sjkim 2366193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 2367193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 2368193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 2369193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 2370193267Sjkimbootable Linux firmware kit is now available. 2371167802Sjkim 2372193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 2373193267Sjkimenable a clean subsystem restart, via the implementation of the 2374193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 2375193267SjkimHP) 2376167802Sjkim 2377193267SjkimImplemented enhancements to the multithreading support within the debugger 2378193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 2379167802Sjkim(Valery Podrezov) 2380167802Sjkim 2381193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 2382193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 2383193267Sjkimeach of the various object types. (Valery Podrezov) 2384167802Sjkim 2385193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2386193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2387193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2388193267Sjkima much larger code and data size. 2389193267Sjkim 2390167802Sjkim Previous Release: 2391167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2392167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2393167802Sjkim Current Release: 2394167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2395167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2396167802Sjkim 2397167802Sjkim 2398167802Sjkim2) iASL Compiler/Disassembler and Tools: 2399167802Sjkim 2400193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 2401193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 2402167802Sjkim 2403167802Sjkim---------------------------------------- 2404167802Sjkim09 November 2006. Summary of changes for version 20061109: 2405167802Sjkim 2406167802Sjkim1) ACPI CA Core Subsystem: 2407167802Sjkim 2408193267SjkimOptimized the Load ASL operator in the case where the source operand is an 2409193267Sjkimoperation region. Simply map the operation region memory, instead of 2410193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 2411193267Sjkimbelow.) 2412167802Sjkim 2413193267SjkimFixed the Load ASL operator for the case where the source operand is a 2414193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 2415167802Sjkim 2416193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 2417193267Sjkiman operation region of any type. It is now restricted to regions of type 2418193267SjkimSystemMemory, as per the ACPI specification. BZ 481 2419167802Sjkim 2420193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 2421167802Sjkim 2422193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 2423193267Sjkim(FADT, FACS, DSDT). BZ 477 2424167802Sjkim 2425193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 2426193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 2427193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 2428167802Sjkim 2429193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2430193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2431193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2432193267Sjkima much larger code and data size. 2433167802Sjkim 2434167802Sjkim Previous Release: 2435167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2436167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2437167802Sjkim Current Release: 2438167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2439167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2440167802Sjkim 2441167802Sjkim 2442167802Sjkim2) iASL Compiler/Disassembler and Tools: 2443167802Sjkim 2444193267SjkimFixed a problem where the presence of the _OSI predefined control method 2445193267Sjkimwithin complex expressions could cause an internal compiler error. 2446167802Sjkim 2447193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 2448193267SjkimSpaceId is now part of the REGION object. BZ 429 2449167802Sjkim 2450167802Sjkim---------------------------------------- 2451167802Sjkim11 October 2006. Summary of changes for version 20061011: 2452167802Sjkim 2453167802Sjkim1) ACPI CA Core Subsystem: 2454167802Sjkim 2455193267SjkimCompleted an AML interpreter performance enhancement for control method 2456193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 2457193267Sjkimcompletely parsed and executed in a single pass. This improves overall 2458193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 2459193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 2460193267Sjkimeliminated namespace loading during the pass one parse.) 2461167802Sjkim 2462193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 2463193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 2464193267Sjkimobtained and also checked for an ID match. 2465167802Sjkim 2466193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 2467193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 2468193267Sjkimoperation regions to be declared locally within control methods underneath 2469193267SjkimPCI device objects. 2470167802Sjkim 2471193267SjkimFixed a problem with a possible race condition between threads executing 2472193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 2473193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 2474193267Sjkimentries created during any concurrent control method execution. An 2475193267Sjkimadditional namespace race condition is known to exist between 2476193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 2477193267Sjkiminvestigation. 2478167802Sjkim 2479193267SjkimRestructured the AML ParseLoop function, breaking it into several 2480193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 2481193267Sjkim(Mikhail Kouzmich) 2482167802Sjkim 2483193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 2484193267Sjkimof prefix handle and pathname. BZ 478 2485167802Sjkim 2486193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2487193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2488193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2489193267Sjkima much larger code and data size. 2490167802Sjkim 2491167802Sjkim Previous Release: 2492167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2493167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2494167802Sjkim Current Release: 2495167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2496167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2497167802Sjkim 2498167802Sjkim2) iASL Compiler/Disassembler and Tools: 2499167802Sjkim 2500193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 2501193267Sjkimto restore original behavior. 2502167802Sjkim 2503167802Sjkim---------------------------------------- 2504167802Sjkim27 September 2006. Summary of changes for version 20060927: 2505167802Sjkim 2506167802Sjkim1) ACPI CA Core Subsystem: 2507167802Sjkim 2508193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 2509193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 2510193267Sjkimlevel indication flag is not needed. 2511167802Sjkim 2512193267SjkimFixed a problem with the Global Lock where the lock could appear to be 2513193267Sjkimobtained before it is actually obtained. The global lock semaphore was 2514193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 2515193267SjkimSuietov. 2516167802Sjkim 2517193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 2518193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 2519167802Sjkim 2520193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2521193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2522193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2523193267Sjkima much larger code and data size. 2524167802Sjkim 2525167802Sjkim Previous Release: 2526167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2527167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2528167802Sjkim Current Release: 2529167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2530167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2531167802Sjkim 2532167802Sjkim 2533167802Sjkim2) iASL Compiler/Disassembler and Tools: 2534167802Sjkim 2535193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 2536193267Sjkimnames where an "object does not exist" error could be incorrectly generated 2537193267Sjkimif the parent ResourceTemplate pathname places the template within a 2538193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 2539167802Sjkim 2540193267SjkimFixed a problem where the compiler could hang after syntax errors detected 2541193267Sjkimin an ElseIf construct. (BZ 453) 2542167802Sjkim 2543193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 2544193267Sjkimoperator. An incorrect output filename was produced when this parameter was 2545193267Sjkima null string (""). Now, the original input filename is used as the AML 2546193267Sjkimoutput filename, with an ".aml" extension. 2547167802Sjkim 2548193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 2549193267Sjkimany AML debugger command) (Valery Podrezov). 2550167802Sjkim 2551167802Sjkim---------------------------------------- 2552167802Sjkim12 September 2006. Summary of changes for version 20060912: 2553167802Sjkim 2554167802Sjkim1) ACPI CA Core Subsystem: 2555167802Sjkim 2556193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 2557193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 2558193267Sjkimspecified, instead of creating a serialization semaphore per control method, 2559193267Sjkimthe interpreter lock is simply no longer released before a blocking 2560193267Sjkimoperation during control method execution. This effectively makes the AML 2561193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 2562193267Sjkimeliminated. 2563167802Sjkim 2564193267SjkimFixed a regression where an error was no longer emitted if a control method 2565193267Sjkimattempts to create 2 objects of the same name. This once again returns 2566193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 2567193267Sjkimwill dynamically serialize the control method to possible prevent future 2568193267Sjkimerrors. (BZ 440) 2569167802Sjkim 2570193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 2571193267SjkimConfig Space setup procedure. (BZ 7145) 2572167802Sjkim 2573193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 2574193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 2575193267Sjkimtable is loaded. 2576167802Sjkim 2577193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 2578193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 2579193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 2580167802Sjkim 2581193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2582193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2583193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2584193267Sjkima much larger code and data size. 2585167802Sjkim 2586167802Sjkim Previous Release: 2587167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2588167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2589167802Sjkim Current Release: 2590167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2591167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2592167802Sjkim 2593167802Sjkim 2594167802Sjkim2) iASL Compiler/Disassembler and Tools: 2595167802Sjkim 2596193267SjkimFixed a problem with the implementation of the Switch() operator where the 2597193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 2598193267Sjkimat method level. This could cause a problem if the Switch() operator is 2599193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 2600167802Sjkim 2601193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 2602193267Sjkimoperator. Now, ignore it and continue. 2603167802Sjkim 2604193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 2605193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 2606167802Sjkim 2607193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 2608193267Sjkimeach output line with the current buffer offset. 2609167802Sjkim 2610193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 2611193267Sjkimthe end of some of the subtables. 2612167802Sjkim 2613193267SjkimThe disassembler now emits a comment if a buffer appears to be a 2614193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 2615193267Sjkimnot appear at the very end of the buffer. 2616167802Sjkim 2617193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 2618193267Sjkimof the AML interpreter. 2619167802Sjkim 2620167802Sjkim---------------------------------------- 2621167802Sjkim31 August 2006. Summary of changes for version 20060831: 2622167802Sjkim 2623167802Sjkim1) ACPI CA Core Subsystem: 2624167802Sjkim 2625167802SjkimMiscellaneous fixes for the Table Manager: 2626193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 2627167802Sjkim- Fixed a couple table mapping issues during table load 2628167802Sjkim- Fixed a couple alignment issues for IA64 2629167802Sjkim- Initialize input array to zero in AcpiInitializeTables 2630193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 2631193267SjkimAcpiGetTableByIndex 2632167802Sjkim 2633193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 2634193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 2635193267Sjkimprevent other wake GPEs from interrupting the wake process. 2636167802Sjkim 2637193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 2638193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 2639167802Sjkim 2640193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 2641193267Sjkimboth the ACPICA headers and the disassembler. 2642167802Sjkim 2643193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2644193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2645193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2646193267Sjkima much larger code and data size. 2647167802Sjkim 2648167802Sjkim Previous Release: 2649167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2650167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2651167802Sjkim Current Release: 2652167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2653167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2654167802Sjkim 2655167802Sjkim 2656167802Sjkim2) iASL Compiler/Disassembler and Tools: 2657167802Sjkim 2658167802SjkimDisassembler support for the DMAR ACPI table. 2659167802Sjkim 2660167802Sjkim---------------------------------------- 2661167802Sjkim23 August 2006. Summary of changes for version 20060823: 2662167802Sjkim 2663167802Sjkim1) ACPI CA Core Subsystem: 2664167802Sjkim 2665193267SjkimThe Table Manager component has been completely redesigned and 2666193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 2667193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 2668193267Sjkimnow possible to obtain the ACPI tables very early during kernel 2669193267Sjkiminitialization, even before dynamic memory management is initialized. 2670193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 2671167802Sjkim 2672167802SjkimObsolete ACPICA interfaces: 2673167802Sjkim 2674193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 2675193267Sjkimtime). 2676167802Sjkim- AcpiLoadTable: Not needed. 2677167802Sjkim- AcpiUnloadTable: Not needed. 2678167802Sjkim 2679167802SjkimNew ACPICA interfaces: 2680167802Sjkim 2681193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 2682193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 2683193267Sjkimallocated memory after it becomes available. 2684193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 2685193267Sjkimin the RSDT/XSDT. 2686167802Sjkim 2687167802SjkimOther ACPICA changes: 2688167802Sjkim 2689193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 2690193267SjkimAcpiOsUnmapMemory to free this mapping. 2691193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 2692193267Sjkiminternally and must not be deleted by the caller. Use of this interface 2693193267Sjkimcauses no additional dynamic memory allocation. 2694193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 2695193267Sjkimit appeared to be unused. 2696193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 2697193267Sjkimother allocation interfaces. 2698193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 2699193267Sjkimparameters. 2700193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 2701193267Sjkimbit platforms. Was previously 64 bits on all platforms. 2702193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 2703193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 2704193267Sjkimconstructed pointer to the actual global lock. 2705167802Sjkim 2706167802SjkimPorting to the new table manager: 2707167802Sjkim 2708193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 2709193267Sjkimduring the OS initialization process. It allows the host to specify an area 2710193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 2711193267Sjkimtable). This allows the host to access ACPI tables before memory management 2712193267Sjkimis initialized and running. 2713193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 2714193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 2715193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 2716193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 2717193267SjkimTable Manager, and does not have to be called before the Table Manager can 2718193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 2719193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 2720193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 2721193267SjkimFor example, bitfields have been completely removed because of their lack of 2722193267Sjkimportability across C compilers. 2723193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 2724193267Sjkimversions are used. (see acwin.h) 2725167802Sjkim 2726167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 2727167802Sjkim 2728167802SjkimNew files: tbfind.c 2729167802Sjkim 2730193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2731193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2732193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2733193267Sjkima much larger code and data size. 2734167802Sjkim 2735167802Sjkim Previous Release: 2736167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2737167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2738167802Sjkim Current Release: 2739167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2740167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2741167802Sjkim 2742167802Sjkim 2743167802Sjkim2) iASL Compiler/Disassembler and Tools: 2744167802Sjkim 2745167802SjkimNo changes for this release. 2746167802Sjkim 2747167802Sjkim---------------------------------------- 2748167802Sjkim21 July 2006. Summary of changes for version 20060721: 2749167802Sjkim 2750167802Sjkim1) ACPI CA Core Subsystem: 2751167802Sjkim 2752193267SjkimThe full source code for the ASL test suite used to validate the iASL 2753193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 2754193267Sjkimsource for the first time. The source is contained in a separate package and 2755193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 2756193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 2757167802SjkimSuietov) 2758167802Sjkim 2759193267SjkimCompleted a new design and implementation for support of the ACPI Global 2760193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 2761193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 2762193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 2763193267Sjkimlock - especially in cases such as the Embedded Controller driver where 2764193267Sjkimthere is a tight coupling between the OS and the BIOS. 2765167802Sjkim 2766193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 2767193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 2768193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 2769193267Sjkimis signaled directly from the interrupt handler. 2770167802Sjkim 2771193267SjkimImplemented support within the AML interpreter for package objects that 2772193267Sjkimcontain a larger AML length (package list length) than the package element 2773193267Sjkimcount. In this case, the length of the package is truncated to match the 2774193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 2775193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 2776193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 2777167802Sjkim 2778193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 2779193267Sjkimsupport all constant values, now including the Zero and One opcodes. 2780193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 2781193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 2782193267Sjkimconstant values for this parameter. 2783167802Sjkim 2784167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2785193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 2786193267Sjkim350) 2787167802Sjkim 2788193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2789193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2790193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2791193267Sjkima much larger code and data size. 2792167802Sjkim 2793167802Sjkim Previous Release: 2794167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 2795167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 2796167802Sjkim Current Release: 2797167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2798167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2799167802Sjkim 2800167802Sjkim 2801167802Sjkim2) iASL Compiler/Disassembler and Tools: 2802167802Sjkim 2803167802SjkimNo changes for this release. 2804167802Sjkim 2805167802Sjkim---------------------------------------- 2806167802Sjkim07 July 2006. Summary of changes for version 20060707: 2807167802Sjkim 2808167802Sjkim1) ACPI CA Core Subsystem: 2809167802Sjkim 2810193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 2811193267Sjkimthat do not allow the initialization of address pointers within packed 2812193267Sjkimstructures - even though the hardware itself may support misaligned 2813193267Sjkimtransfers. Some of the debug data structures are packed by default to 2814193267Sjkimminimize size. 2815167802Sjkim 2816193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 2817193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 2818193267Sjkimoperation of AML mutexes and recursive control methods. 2819167802Sjkim 2820193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 2821193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 2822193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 2823193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 2824167802Sjkim 2825193267SjkimFixed a possible leak of an OwnerID in the error path of 2826193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 2827193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 2828193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 2829193267SjkimLance Ortiz.) 2830167802Sjkim 2831193267SjkimFixed a problem with Serialized control methods where the semaphore 2832193267Sjkimassociated with the method could be over-signaled after multiple method 2833193267Sjkiminvocations. 2834167802Sjkim 2835193267SjkimFixed two issues with the locking of the internal namespace data structure. 2836193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 2837193267Sjkimnamespace during the namespace deletion associated with the table unload 2838193267Sjkim(with assistance from Linn Crosetto.) 2839167802Sjkim 2840167802SjkimFixed problem reports (Valery Podrezov) integrated: 2841193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 2842167802Sjkim 2843167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2844167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 2845193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 2846193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 2847193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 2848193267Sjkim(BZ 376) 2849193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 2850167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 2851193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 2852193267SjkimHandler (BZ (380) 2853193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 2854193267Sjkim(BZ 381) 2855167802Sjkim 2856193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2857193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2858193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2859193267Sjkima much larger code and data size. 2860167802Sjkim 2861167802Sjkim Previous Release: 2862167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2863167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2864167802Sjkim Current Release: 2865167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2866167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2867167802Sjkim 2868167802Sjkim 2869167802Sjkim2) iASL Compiler/Disassembler and Tools: 2870167802Sjkim 2871167802SjkimFixed problem reports: 2872193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 2873193267Sjkim436) 2874167802Sjkim 2875167802Sjkim---------------------------------------- 2876167802Sjkim23 June 2006. Summary of changes for version 20060623: 2877167802Sjkim 2878167802Sjkim1) ACPI CA Core Subsystem: 2879167802Sjkim 2880193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 2881193267Sjkimallows the type to be customized to the host OS for improved efficiency 2882193267Sjkim(since a spinlock is usually a very small object.) 2883167802Sjkim 2884193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 2885193267Sjkimthe ACPI specification, these bits should be preserved when writing the 2886193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 2887193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 2888167802Sjkim 2889193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 2890193267Sjkimhost operating systems have separate mutex and semaphore objects, this 2891193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 2892193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 2893193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 2894193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 2895193267Sjkimat this time. (See acpiosxf.h) 2896167802Sjkim 2897193267SjkimFixed several problems with the support for the control method SyncLevel 2898193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 2899193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 2900193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 2901193267Sjkimis now implemented with a mutex instead of a semaphore. 2902167802Sjkim 2903193267SjkimFixed three instances of the use of the C shift operator in the bitfield 2904193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 2905193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 2906193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 2907193267Sjkimavoided. (Fiodor Suietov) 2908167802Sjkim 2909193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 2910193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 2911193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 2912193267Sjkimthe tables present in the RSDT/XSDT.) 2913167802Sjkim 2914193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2915193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2916193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2917193267Sjkima much larger code and data size. 2918167802Sjkim 2919167802Sjkim Previous Release: 2920167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2921167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2922167802Sjkim Current Release: 2923167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2924167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2925167802Sjkim 2926167802Sjkim 2927167802Sjkim2) iASL Compiler/Disassembler and Tools: 2928167802Sjkim 2929167802SjkimNo changes for this release. 2930167802Sjkim 2931167802Sjkim---------------------------------------- 2932167802Sjkim08 June 2006. Summary of changes for version 20060608: 2933167802Sjkim 2934167802Sjkim1) ACPI CA Core Subsystem: 2935167802Sjkim 2936193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 2937193267Sjkimchange should eliminate all problems caused by attempting to acquire a 2938193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 2939193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 2940193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 2941193267Sjkimable to eliminate any workarounds for being called at interrupt level. 2942167802Sjkim 2943193267SjkimFixed a regression introduced in 20060526 where the ACPI device 2944193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 2945193267Sjkimdid not have an optional _INI method. 2946167802Sjkim 2947193267SjkimFixed an IndexField issue where a write to the Data Register should be 2948193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 2949193267SjkimFiodor Suietov) 2950167802Sjkim 2951167802SjkimFixed problem reports (Valery Podrezov) integrated: 2952193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 2953167802Sjkim 2954167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2955193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 2956167802Sjkim 2957193267SjkimRemoved four global mutexes that were obsolete and were no longer being 2958193267Sjkimused. 2959167802Sjkim 2960193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2961193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2962193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2963193267Sjkima much larger code and data size. 2964167802Sjkim 2965167802Sjkim Previous Release: 2966167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 2967167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 2968167802Sjkim Current Release: 2969167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2970167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2971167802Sjkim 2972167802Sjkim 2973167802Sjkim2) iASL Compiler/Disassembler and Tools: 2974167802Sjkim 2975193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 2976193267Sjkimmachines. 2977167802Sjkim 2978167802SjkimFixed problem reports integrated: 2979193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 2980193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 2981193267SjkimSuietov) 2982167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 2983167802Sjkim 2984167802Sjkim---------------------------------------- 2985167802Sjkim26 May 2006. Summary of changes for version 20060526: 2986167802Sjkim 2987167802Sjkim1) ACPI CA Core Subsystem: 2988167802Sjkim 2989193267SjkimRestructured, flattened, and simplified the internal interfaces for 2990193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 2991193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 2992167802Sjkim 2993193267SjkimFixed a problem with the CopyObject operator where the first parameter was 2994193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 2995193267SjkimCaused various errors and unexpected behavior. 2996167802Sjkim 2997193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 2998193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 2999193267Sjkimcompilers when the shift value is larger than the datatype width is 3000193267Sjkimapparently not well defined, the interpreter now detects this condition and 3001193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 3002167802Sjkim 3003167802SjkimFixed problem reports (Valery Podrezov) integrated: 3004193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 3005193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 3006167802Sjkim 3007167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3008193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 3009193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 3010193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 3011193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 3012167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 3013193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 3014167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 3015167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 3016193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 3017193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 3018193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 3019167802Sjkim 3020193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3021193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3022193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3023193267Sjkima much larger code and data size. 3024167802Sjkim 3025167802Sjkim Previous Release: 3026167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3027167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3028167802Sjkim Current Release: 3029167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3030167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3031167802Sjkim 3032167802Sjkim 3033167802Sjkim2) iASL Compiler/Disassembler and Tools: 3034167802Sjkim 3035193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 3036193267Sjkimnamespace identifiers with no collision with existing resource descriptor 3037193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 3038193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 3039167802Sjkimerrors. (With assistance from Thomas Renninger) 3040167802Sjkim 3041193267SjkimDisassembler: fixed an incorrect disassembly problem with the 3042193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 3043193267Sjkimdisassembly of some Alias operators. 3044167802Sjkim 3045167802Sjkim---------------------------------------- 3046167802Sjkim12 May 2006. Summary of changes for version 20060512: 3047167802Sjkim 3048167802Sjkim1) ACPI CA Core Subsystem: 3049167802Sjkim 3050193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 3051193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 3052193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 3053193267SjkimType parameter. The Type tells the host what type of execution is being 3054193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 3055193267SjkimThis allows the host to queue and execute the request as appropriate for the 3056193267Sjkimrequest type, possibly using different work queues and different priorities 3057193267Sjkimfor the various request types. This enables fixes for multithreading 3058193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 3059193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 3060167802Sjkim 3061193267SjkimFixed a possible memory leak associated with the support for the so-called 3062193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 3063193267SjkimSuietov) 3064167802Sjkim 3065193267SjkimFixed a problem with the Load() operator where a table load from an 3066193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 3067193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 3068167802Sjkim 3069193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3070193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3071193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3072193267Sjkima much larger code and data size. 3073167802Sjkim 3074167802Sjkim Previous Release: 3075167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3076167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3077167802Sjkim Current Release: 3078167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3079167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3080167802Sjkim 3081167802Sjkim 3082167802Sjkim 3083167802Sjkim2) iASL Compiler/Disassembler and Tools: 3084167802Sjkim 3085193267SjkimDisassembler: Implemented support to cross reference the internal namespace 3086193267Sjkimand automatically generate ASL External() statements for symbols not defined 3087193267Sjkimwithin the current table being disassembled. This will simplify the 3088193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 3089193267Sjkimthese statements will no longer have to be added manually. 3090167802Sjkim 3091193267SjkimDisassembler: Implemented experimental support to automatically detect 3092193267Sjkiminvocations of external control methods and generate appropriate External() 3093193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 3094193267Sjkimuntil the number of arguments for each control method is known. Currently, 3095193267Sjkimstandalone method invocations and invocations as the source operand of a 3096193267SjkimStore() statement are supported. 3097167802Sjkim 3098193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 3099193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 3100193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 3101193267Sjkimmore readable and likely closer to the original ASL source. 3102167802Sjkim 3103167802Sjkim---------------------------------------- 3104167802Sjkim21 April 2006. Summary of changes for version 20060421: 3105167802Sjkim 3106167802Sjkim1) ACPI CA Core Subsystem: 3107167802Sjkim 3108193267SjkimRemoved a device initialization optimization introduced in 20051216 where 3109193267Sjkimthe _STA method was not run unless an _INI was also present for the same 3110193267Sjkimdevice. This optimization could cause problems because it could allow _INI 3111193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 3112193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 3113193267Sjkimbe discovered, and the children of the device would be incorrectly 3114167802Sjkimtraversed.) 3115167802Sjkim 3116193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 3117193267Sjkimcontain _INI are identified and ignored during device initialization. 3118193267SjkimSelectively running _STA can significantly improve boot time on large 3119193267Sjkimmachines (with assistance from Len Brown.) 3120167802Sjkim 3121193267SjkimImplemented support for the device initialization case where the returned 3122193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 3123193267Sjkimis not run, but the device children are examined for presence, as per the 3124193267SjkimACPI specification. 3125167802Sjkim 3126193267SjkimImplemented an additional change to the IndexField support in order to 3127193267Sjkimconform to MS behavior. The value written to the Index Register is not 3128193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 3129193267Sjkimthe parent Index Field. (Fiodor Suietov) 3130167802Sjkim 3131193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 3132193267Sjkiminterface is called during the creation of all AML operation regions, and 3133193267Sjkimallows the host OS to exert control over what addresses it will allow the 3134193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 3135193267Sjkimcause a runtime exception when they are actually accessed (will not affect 3136193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 3137167802Sjkimimplementation. 3138167802Sjkim 3139193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 3140193267Sjkiminterface allows the host OS to match the various "optional" 3141193267Sjkiminterface/behavior strings for the _OSI predefined control method as 3142193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 3143193267Sjkimfor an example implementation. 3144167802Sjkim 3145193267SjkimRestructured and corrected various problems in the exception handling code 3146193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 3147193267Sjkim(with assistance from Takayoshi Kochi.) 3148167802Sjkim 3149193267SjkimModified the Linux source converter to ignore quoted string literals while 3150193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 3151193267Sjkimwith the disassembler and other areas where such strings must not be 3152193267Sjkimmodified. 3153167802Sjkim 3154193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 3155193267Sjkimname. This allows the Linux source converter to convert the names, now that 3156193267Sjkimthe converter ignores quoted strings. 3157167802Sjkim 3158193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3159193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3160193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3161193267Sjkima much larger code and data size. 3162193267Sjkim 3163167802Sjkim Previous Release: 3164167802Sjkim 3165167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3166167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3167167802Sjkim Current Release: 3168167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3169167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3170167802Sjkim 3171167802Sjkim 3172167802Sjkim2) iASL Compiler/Disassembler and Tools: 3173167802Sjkim 3174193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 3175193267Sjkim(w2 flag). 3176167802Sjkim 3177193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 3178193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 3179193267Sjkimcheck for the possible timeout, a warning is issued. 3180167802Sjkim 3181193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 3182193267Sjkimoperand and it also does not use the function return value from the 3183193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 3184167802Sjkim 3185193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 3186193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 3187193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 3188193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 3189193267Sjkimdon't look like they will ever be used. For example, the reserved methods 3190193267Sjkim(starting with an underscore) are usually not referenced because it is 3191193267Sjkimexpected that the OS will invoke them. 3192167802Sjkim 3193167802Sjkim---------------------------------------- 3194167802Sjkim31 March 2006. Summary of changes for version 20060331: 3195167802Sjkim 3196167802Sjkim1) ACPI CA Core Subsystem: 3197167802Sjkim 3198193267SjkimImplemented header file support for the following additional ACPI tables: 3199193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 3200193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 3201193267Sjkimare available for use by device drivers and other software. 3202167802Sjkim 3203193267SjkimImplemented support to allow tables that contain ACPI names with invalid 3204193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 3205193267Sjkimfail, but since there are several known cases of such tables on existing 3206193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 3207193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 3208167802Sjkim 3209193267SjkimFixed a couple regressions introduced during the memory optimization in the 3210193267Sjkim20060317 release. The namespace node definition required additional 3211193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 3212193267Sjkimrestored to 32-bit. (Valery Podrezov) 3213167802Sjkim 3214193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 3215193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 3216193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 3217193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 3218167802Sjkim(Valery Podrezov, Fiodor Suietov) 3219167802Sjkim 3220193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 3221193267Sjkimregion where a cached memory mapping was not deleted. This became a 3222193267Sjkimnoticeable problem for operation regions that are defined within frequently 3223193267Sjkimused control methods. (Dana Meyers) 3224167802Sjkim 3225193267SjkimReorganized the ACPI table header files into two main files: one for the 3226193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 3227193267SjkimACPI tables that are consumed by the drivers and other software. The various 3228193267SjkimFADT definitions were merged into one common section and three different 3229193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 3230167802Sjkim 3231193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3232193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3233193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3234193267Sjkima much larger code and data size. 3235167802Sjkim 3236167802Sjkim Previous Release: 3237167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3238167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3239167802Sjkim Current Release: 3240167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3241167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3242167802Sjkim 3243167802Sjkim 3244167802Sjkim2) iASL Compiler/Disassembler and Tools: 3245167802Sjkim 3246193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 3247193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 3248193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 3249193267Sjkimsupported. 3250167802Sjkim 3251193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 3252193267Sjkimenables the disassembly of such tables. Invalid characters within names are 3253193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 3254193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 3255193267Sjkimcharacter. 3256167802Sjkim 3257193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 3258193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 3259167802Sjkim 3260193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 3261193267Sjkimmakefile for the AcpiXtract utility. 3262167802Sjkim 3263167802Sjkim---------------------------------------- 3264167802Sjkim17 March 2006. Summary of changes for version 20060317: 3265167802Sjkim 3266167802Sjkim1) ACPI CA Core Subsystem: 3267167802Sjkim 3268193267SjkimImplemented the use of a cache object for all internal namespace nodes. 3269193267SjkimSince there are about 1000 static nodes in a typical system, this will 3270193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 3271193267Sjkimoverhead (such as a slab allocator.) 3272167802Sjkim 3273193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 3274193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 3275193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 3276193267Sjkimand 32 bytes for the 64-bit case. 3277167802Sjkim 3278193267SjkimOptimized several internal data structures to reduce object size on 64-bit 3279193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 3280193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 3281193267Sjkiminstances corresponding to the namespace objects. 3282167802Sjkim 3283193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 3284193267Sjkimand "Windows 2006". 3285167802Sjkim 3286193267SjkimSplit the allocation tracking mechanism out to a separate file, from 3287193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 3288193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 3289193267Sjkimdistributions. 3290167802Sjkim 3291193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 3292193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 3293193267Sjkimmacros.) 3294167802Sjkim 3295193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3296193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3297193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3298193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3299193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3300193267Sjkimcompiler options used during generation. 3301167802Sjkim 3302167802Sjkim Previous Release: 3303167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3304167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3305167802Sjkim Current Release: 3306167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3307167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3308167802Sjkim 3309167802Sjkim 3310167802Sjkim2) iASL Compiler/Disassembler and Tools: 3311167802Sjkim 3312193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 3313193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 3314193267Sjkimfile and dump the binary output to separate files. It can also display a 3315193267Sjkimsummary of the input file including the headers for each table found and 3316193267Sjkimwill extract any single ACPI table, with any signature. (See 3317167802Sjkimsource/tools/acpixtract) 3318167802Sjkim 3319167802Sjkim---------------------------------------- 3320167802Sjkim10 March 2006. Summary of changes for version 20060310: 3321167802Sjkim 3322167802Sjkim1) ACPI CA Core Subsystem: 3323167802Sjkim 3324193267SjkimTagged all external interfaces to the subsystem with the new 3325193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 3326193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 3327193267Sjkimmacro. The default definition is NULL. 3328167802Sjkim 3329193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 3330193267SjkimThis allows the host to define this as necessary to simplify kernel 3331193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 3332167802Sjkim 3333193267SjkimFixed two interpreter problems related to error processing, the deletion of 3334193267Sjkimobjects, and placing invalid pointers onto the internal operator result 3335193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 3336167802Sjkim 3337193267SjkimIncreased the reference count threshold where a warning is emitted for large 3338193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 3339193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 3340193267Sjkim0x800. 3341167802Sjkim 3342193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 3343193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 3344193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 3345193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 3346193267SjkimACPI_FREE. 3347167802Sjkim 3348193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3349193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3350193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3351193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3352193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3353193267Sjkimcompiler options used during generation. 3354167802Sjkim 3355167802Sjkim Previous Release: 3356167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3357167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3358167802Sjkim Current Release: 3359167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3360167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3361167802Sjkim 3362167802Sjkim 3363167802Sjkim2) iASL Compiler/Disassembler: 3364167802Sjkim 3365193267SjkimDisassembler: implemented support for symbolic resource descriptor 3366193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 3367193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 3368193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 3369193267Sjkimthis support brings the disassembled code very close to the original ASL 3370193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 3371193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 3372193267Sjkimfixed offsets. 3373167802Sjkim 3374193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 3375193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 3376193267Sjkimspecification, and will be added for ACPI 3.0b. 3377167802Sjkim 3378193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 3379193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 3380167802Sjkim 3381193267SjkimFixed a problem with the error message that occurs when an invalid string is 3382193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 3383193267SjkimThe correct message is now displayed. 3384167802Sjkim 3385167802Sjkim---------------------------------------- 3386167802Sjkim17 February 2006. Summary of changes for version 20060217: 3387167802Sjkim 3388167802Sjkim1) ACPI CA Core Subsystem: 3389167802Sjkim 3390193267SjkimImplemented a change to the IndexField support to match the behavior of the 3391193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 3392193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 3393193267SjkimThis should fix IndexField problems seen on some machines where the Data 3394193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 3395193267Sjkimclarified on this point. 3396167802Sjkim 3397193267SjkimFixed a problem where several resource descriptor types could overrun the 3398193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 3399193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 3400193267Sjkimaffect all platforms. 3401167802Sjkim 3402193267SjkimFixed a problem where individual resource descriptors were misaligned within 3403193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 3404167802Sjkim 3405193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3406193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3407193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3408193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3409193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3410193267Sjkimcompiler options used during generation. 3411167802Sjkim 3412167802Sjkim Previous Release: 3413167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3414167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3415167802Sjkim Current Release: 3416167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3417167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3418167802Sjkim 3419167802Sjkim 3420167802Sjkim2) iASL Compiler/Disassembler: 3421167802Sjkim 3422193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 3423193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 3424193267Sjkimdefined method (Throttling Depth Limit.) 3425167802Sjkim 3426193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 3427193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 3428167802Sjkim 3429167802Sjkim---------------------------------------- 3430167802Sjkim10 February 2006. Summary of changes for version 20060210: 3431167802Sjkim 3432167802Sjkim1) ACPI CA Core Subsystem: 3433167802Sjkim 3434193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 3435193267Sjkimnormal execution. These became apparent after the conversion from 3436193267SjkimACPI_DEBUG_PRINT. 3437167802Sjkim 3438193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 3439193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 3440167802Sjkim 3441193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 3442193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 3443193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 3444167802Sjkim 3445193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 3446193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 3447193267Sjkim5480) 3448167802Sjkim 3449193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 3450193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 3451193267Sjkim(Valery Podrezov, BZ 5427) 3452167802Sjkim 3453193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 3454193267SjkimPodrezov, BZ 5336) 3455167802Sjkim 3456167802SjkimFixed several warnings during the 64-bit code generation. 3457167802Sjkim 3458193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 3459193267Sjkimafter an if() statement that is followed immediately by a comment, improving 3460193267Sjkimreadability of the Linux code. 3461167802Sjkim 3462193267SjkimCode and Data Size: The current and previous library sizes for the core 3463193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3464193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3465193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3466193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3467193267Sjkimand data size. Note that these values will vary depending on the efficiency 3468193267Sjkimof the compiler and the compiler options used during generation. 3469167802Sjkim 3470167802Sjkim Previous Release: 3471167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3472167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3473167802Sjkim Current Release: 3474167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3475167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3476167802Sjkim 3477167802Sjkim 3478167802Sjkim2) iASL Compiler/Disassembler: 3479167802Sjkim 3480193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 3481193267Sjkimexpression for the BankValue parameter. 3482167802Sjkim 3483167802Sjkim---------------------------------------- 3484167802Sjkim27 January 2006. Summary of changes for version 20060127: 3485167802Sjkim 3486167802Sjkim1) ACPI CA Core Subsystem: 3487167802Sjkim 3488193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 3489193267Sjkimreferences within resource package objects for the _PRT method. This support 3490193267Sjkimis in addition to the previously implemented unresolved reference support 3491193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 3492193267Sjkimunresolved references will be passed through to the caller as a NULL package 3493167802Sjkimentry. 3494167802Sjkim 3495193267SjkimImplemented and deployed new macros and functions for error and warning 3496193267Sjkimmessages across the subsystem. These macros are simpler and generate less 3497193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 3498193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 3499193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 3500193267Sjkimmacros. 3501167802Sjkim 3502193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 3503193267SjkimAcquire/Release Lock OSL interfaces. 3504167802Sjkim 3505193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 3506193267Sjkimresolved, in both the interpreter and the iASL compiler. 3507167802Sjkim 3508193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 3509193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 3510193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 3511193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 3512167802Sjkimcause a fatal exception. 3513167802Sjkim 3514193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 3515193267Sjkiminterface. (With assistance from Thomas Renninger) 3516167802Sjkim 3517193267SjkimCode and Data Size: The current and previous library sizes for the core 3518193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3519193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3520193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3521193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3522193267Sjkimand data size. Note that these values will vary depending on the efficiency 3523193267Sjkimof the compiler and the compiler options used during generation. 3524167802Sjkim 3525167802Sjkim Previous Release: 3526167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3527167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3528167802Sjkim Current Release: 3529167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3530167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3531167802Sjkim 3532167802Sjkim 3533167802Sjkim2) iASL Compiler/Disassembler: 3534167802Sjkim 3535193267SjkimFixed an internal error that was generated for any forward references to ASL 3536193267SjkimAlias objects. 3537167802Sjkim 3538167802Sjkim---------------------------------------- 3539167802Sjkim13 January 2006. Summary of changes for version 20060113: 3540167802Sjkim 3541167802Sjkim1) ACPI CA Core Subsystem: 3542167802Sjkim 3543193267SjkimAdded 2006 copyright to all module headers and signons. This affects 3544193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 3545193267Sjkimutilities. 3546193267Sjkim 3547193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 3548193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 3549193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 3550193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 3551193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 3552193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 3553193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 3554193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 3555193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 3556193267Sjkimbut all error/warning reporting may be disabled if desired (and code 3557193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 3558193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 3559193267Sjkimthe same. 3560167802Sjkim 3561193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 3562193267Sjkimnot properly deleted for every successful invocation of the command. 3563167802Sjkim 3564193267SjkimCode and Data Size: The current and previous library sizes for the core 3565193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3566193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3567193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3568193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3569193267Sjkimand data size. Note that these values will vary depending on the efficiency 3570193267Sjkimof the compiler and the compiler options used during generation. 3571167802Sjkim 3572167802Sjkim Previous Release: 3573167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3574167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3575167802Sjkim Current Release: 3576167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3577167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3578167802Sjkim 3579167802Sjkim 3580167802Sjkim2) iASL Compiler/Disassembler: 3581167802Sjkim 3582193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 3583193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 3584167802Sjkim 3585167802Sjkim---------------------------------------- 3586167802Sjkim16 December 2005. Summary of changes for version 20051216: 3587167802Sjkim 3588167802Sjkim1) ACPI CA Core Subsystem: 3589167802Sjkim 3590193267SjkimImplemented optional support to allow unresolved names within ASL Package 3591193267Sjkimobjects. A null object is inserted in the package when a named reference 3592193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 3593193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 3594193267Sjkimthat contain such code. 3595167802Sjkim 3596193267SjkimImplemented an optimization to the initialization sequence that can improve 3597193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 3598193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 3599193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 3600193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 3601167802Sjkim(Prototype and assistance from Dong Wei) 3602167802Sjkim 3603193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 3604193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 3605193267Sjkimused as before. 3606167802Sjkim 3607193267SjkimFixed some possible memory leaks found within the execution path of the 3608193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 3609167802Sjkim 3610193267SjkimFixed a problem introduced in the 20051202 release where an exception is 3611193267Sjkimgenerated during method execution if a control method attempts to declare 3612193267Sjkimanother method. 3613167802Sjkim 3614193267SjkimMoved resource descriptor string constants that are used by both the AML 3615193267Sjkimdisassembler and AML debugger to the common utilities directory so that 3616193267Sjkimthese components are independent. 3617167802Sjkim 3618193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 3619193267Sjkimexceptions during control method execution (method is not aborted.) 3620167802Sjkim 3621193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 3622193267Sjkimgeneration. 3623167802Sjkim 3624193267SjkimCode and Data Size: The current and previous library sizes for the core 3625193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3626193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3627193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3628193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3629193267Sjkimand data size. Note that these values will vary depending on the efficiency 3630193267Sjkimof the compiler and the compiler options used during generation. 3631167802Sjkim 3632167802Sjkim Previous Release: 3633167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3634167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3635167802Sjkim Current Release: 3636167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3637167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3638167802Sjkim 3639167802Sjkim 3640167802Sjkim2) iASL Compiler/Disassembler: 3641167802Sjkim 3642193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 3643193267Sjkimmethod call was made from within a Return statement. 3644167802Sjkim 3645167802Sjkim---------------------------------------- 3646167802Sjkim02 December 2005. Summary of changes for version 20051202: 3647167802Sjkim 3648167802Sjkim1) ACPI CA Core Subsystem: 3649167802Sjkim 3650193267SjkimModified the parsing of control methods to no longer create namespace 3651193267Sjkimobjects during the first pass of the parse. Objects are now created only 3652193267Sjkimduring the execute phase, at the moment the namespace creation operator is 3653193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 3654193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 3655193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 3656193267Sjkimcorrectly block multiple threads from attempting to create the same object 3657193267Sjkimmore than once. 3658167802Sjkim 3659193267SjkimIncreased the number of available Owner Ids for namespace object tracking 3660193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 3661193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 3662167802Sjkim 3663193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 3664193267Sjkim-b switch (batch mode) is used. 3665167802Sjkim 3666193267SjkimEnhanced the namespace dump routine to output the owner ID for each 3667193267Sjkimnamespace object. 3668167802Sjkim 3669193267SjkimCode and Data Size: The current and previous library sizes for the core 3670193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3671193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3672193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3673193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3674193267Sjkimand data size. Note that these values will vary depending on the efficiency 3675193267Sjkimof the compiler and the compiler options used during generation. 3676167802Sjkim 3677167802Sjkim Previous Release: 3678167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3679167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3680167802Sjkim Current Release: 3681167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3682167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3683167802Sjkim 3684167802Sjkim 3685167802Sjkim2) iASL Compiler/Disassembler: 3686167802Sjkim 3687193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 3688193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 3689193267Sjkimand this error is now detected and flagged during the analysis phase. 3690167802Sjkim 3691193267SjkimDisassembler: The disassembly now includes the contents of the original 3692193267Sjkimtable header within a comment at the start of the file. This includes the 3693193267Sjkimname and version of the original ASL compiler. 3694167802Sjkim 3695167802Sjkim---------------------------------------- 3696167802Sjkim17 November 2005. Summary of changes for version 20051117: 3697167802Sjkim 3698167802Sjkim1) ACPI CA Core Subsystem: 3699167802Sjkim 3700193267SjkimFixed a problem in the AML parser where the method thread count could be 3701193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 3702193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 3703193267SjkimThis also fixed a related regression with the mechanism that detects and 3704193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 3705193267Sjkimdeployment of the new OwnerId mechanism.) 3706167802Sjkim 3707193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 3708193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 3709193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 3710193267Sjkimload should not be aborted if there are problems with any single control 3711193267Sjkimmethod, thus rendering this feature rather pointless. 3712167802Sjkim 3713193267SjkimFixed a problem with the new table-driven resource manager where an internal 3714193267Sjkimbuffer overflow could occur for small resource templates. 3715167802Sjkim 3716193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 3717193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 3718193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 3719167802Sjkim 3720193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 3721193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 3722193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 3723193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 3724193267SjkimToString operator. 3725167802Sjkim 3726193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 3727193267Sjkimon a semaphore object would incorrectly timeout. This allows the 3728193267Sjkimmultithreading features of the AcpiExec utility to work properly under 3729193267SjkimWindows. 3730167802Sjkim 3731193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 3732193267Sjkimthe recently added file named "utresrc.c". 3733167802Sjkim 3734193267SjkimCode and Data Size: The current and previous library sizes for the core 3735193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3736193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3737193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3738193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3739193267Sjkimand data size. Note that these values will vary depending on the efficiency 3740193267Sjkimof the compiler and the compiler options used during generation. 3741167802Sjkim 3742167802Sjkim Previous Release: 3743167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3744167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3745167802Sjkim Current Release: 3746167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3747167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3748167802Sjkim 3749167802Sjkim 3750167802Sjkim2) iASL Compiler/Disassembler: 3751167802Sjkim 3752193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 3753193267Sjkimspecification. For the iASL compiler, this means that string literals within 3754193267Sjkimthe source ASL can be of any length. 3755167802Sjkim 3756193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 3757193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 3758193267Sjkimthe end of the entire resource template. 3759167802Sjkim 3760193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 3761193267Sjkimconstructed during the parse phase, before any transforms are applied to the 3762193267Sjkimtree. The transformed tree is dumped also. 3763167802Sjkim 3764167802Sjkim---------------------------------------- 3765167802Sjkim02 November 2005. Summary of changes for version 20051102: 3766167802Sjkim 3767167802Sjkim1) ACPI CA Core Subsystem: 3768167802Sjkim 3769193267SjkimModified the subsystem initialization sequence to improve GPE support. The 3770193267SjkimGPE initialization has been split into two parts in order to defer execution 3771193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 3772193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 3773193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 3774193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 3775167802Sjkim 3776193267SjkimConverted the ACPI internal object disassemble and display code within the 3777193267SjkimAML debugger to fully table-driven operation, reducing code size and 3778193267Sjkimincreasing maintainability. 3779167802Sjkim 3780193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 3781193267Sjkimin the 20051021 release. 3782167802Sjkim 3783193267SjkimImplemented support for "local" internal ACPI object types within the 3784193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 3785193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 3786193267Sjkimreference objects. 3787167802Sjkim 3788193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 3789193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 3790167802Sjkim 3791193267SjkimCode and Data Size: The current and previous library sizes for the core 3792193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3793193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3794193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3795193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3796193267Sjkimand data size. Note that these values will vary depending on the efficiency 3797193267Sjkimof the compiler and the compiler options used during generation. 3798167802Sjkim 3799167802Sjkim Previous Release: 3800167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3801167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3802167802Sjkim Current Release: 3803167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3804167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3805167802Sjkim 3806167802Sjkim 3807167802Sjkim2) iASL Compiler/Disassembler: 3808167802Sjkim 3809193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 3810193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 3811167802Sjkim 3812193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 3813193267Sjkimcharacters within comment fields. The scan is now always performed and is no 3814193267Sjkimlonger optional, detecting invalid characters within a source file 3815193267Sjkimimmediately rather than during the parse phase or later. 3816167802Sjkim 3817193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 3818193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 3819193267Sjkimreduced. This should improve performance and reduce the possibility of parse 3820193267Sjkimstack overflow. 3821167802Sjkim 3822193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 3823193267Sjkimwith the addition of a %expected statement, the compiler generates from 3824193267Sjkimsource with no warnings. 3825167802Sjkim 3826193267SjkimFixed a possible segment fault in the disassembler if the input filename 3827193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 3828167802Sjkim 3829167802Sjkim---------------------------------------- 3830151937Sjkim21 October 2005. Summary of changes for version 20051021: 3831151937Sjkim 3832151937Sjkim1) ACPI CA Core Subsystem: 3833151937Sjkim 3834193267SjkimImplemented support for the EM64T and other x86-64 processors. This 3835193267Sjkimessentially entails recognizing that these processors support non-aligned 3836193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 3837193267Sjkimhardware support for non-aligned transfers. 3838151937Sjkim 3839193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 3840193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 3841193267Sjkiminternal format and the reverse) and the debug code to dump internal 3842193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 3843193267Sjkimimproving maintainability. 3844151937Sjkim 3845193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 3846193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 3847193267SjkimAlexey Starikovskiy) 3848151937Sjkim 3849193267SjkimImplemented support within the resource conversion code for the Type- 3850193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 3851151937Sjkim 3852193267SjkimFixed some issues within the resource conversion code for the type-specific 3853193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 3854193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 3855193267SjkimTTP flags into two separate fields. 3856151937Sjkim 3857193267SjkimCode and Data Size: The current and previous library sizes for the core 3858193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3859193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3860193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3861193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3862193267Sjkimand data size. Note that these values will vary depending on the efficiency 3863193267Sjkimof the compiler and the compiler options used during generation. 3864151937Sjkim 3865151937Sjkim Previous Release: 3866151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3867151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3868151937Sjkim Current Release: 3869151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3870151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3871151937Sjkim 3872151937Sjkim 3873167802Sjkim 3874151937Sjkim2) iASL Compiler/Disassembler: 3875151937Sjkim 3876193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 3877193267Sjkimcorresponding ResourceSource string was not also present in a resource 3878193267Sjkimdescriptor declaration. This restriction caused problems with existing 3879193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 3880193267Sjkimwas disassembled, it could not be compiled without modification. Further, 3881193267Sjkimthe modified code created a resource template with a different size than the 3882193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 3883193267Sjkimbuffer. 3884151937Sjkim 3885193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 3886193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 3887193267Sjkimreproduced when the disassembled code is recompiled. 3888151937Sjkim 3889193267SjkimImproved comments and text alignment for the resource descriptor code 3890193267Sjkimemitted by the disassembler. 3891151937Sjkim 3892193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 3893193267SjkimRegister() resource descriptor. 3894151937Sjkim 3895151937Sjkim---------------------------------------- 3896151937Sjkim30 September 2005. Summary of changes for version 20050930: 3897151937Sjkim 3898151937Sjkim1) ACPI CA Core Subsystem: 3899151937Sjkim 3900193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 3901193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 3902193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 3903193267Sjkimuse has been decreased by optimizing function parameters and local 3904193267Sjkimvariables, and naming conventions across the manager have been standardized 3905193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 3906193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 3907193267Sjkimdriver code, depending on how resources are handled by the host OS. 3908151937Sjkim 3909193267SjkimAll Resource Manager dispatch and information tables have been moved to a 3910193267Sjkimsingle location for clarity and ease of maintenance. One new file was 3911193267Sjkimcreated, named "rsinfo.c". 3912151937Sjkim 3913193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 3914193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 3915193267Sjkimto macro side-effects. However, since there exists the possibility of 3916193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 3917193267Sjkimin the debug generation case), the original macros are optionally available. 3918193267SjkimNote that some invocations of the return_VALUE macro may now cause size 3919193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 3920193267Sjkimeliminate these. (From Randy Dunlap) 3921151937Sjkim 3922193267SjkimImplemented a new mechanism to enable debug tracing for individual control 3923193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 3924193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 3925193267Sjkimdisable tracing for problematic control methods. This interface can be 3926193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 3927151937Sjkimpsxface.c for details. 3928151937Sjkim 3929193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 3930193267Sjkimspecified - a length of one is used and a warning is issued. This matches 3931193267Sjkimthe behavior of AcpiUtAllocate. 3932151937Sjkim 3933193267SjkimCode and Data Size: The current and previous library sizes for the core 3934193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3935193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3936193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3937193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3938193267Sjkimand data size. Note that these values will vary depending on the efficiency 3939193267Sjkimof the compiler and the compiler options used during generation. 3940151937Sjkim 3941151937Sjkim Previous Release: 3942151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 3943151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 3944151937Sjkim Current Release: 3945151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3946151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3947151937Sjkim 3948151937Sjkim 3949151937Sjkim2) iASL Compiler/Disassembler: 3950151937Sjkim 3951193267SjkimA remark is issued if the effective compile-time length of a package or 3952193267Sjkimbuffer is zero. Previously, this was a warning. 3953151937Sjkim 3954151937Sjkim---------------------------------------- 3955151937Sjkim16 September 2005. Summary of changes for version 20050916: 3956151937Sjkim 3957151937Sjkim1) ACPI CA Core Subsystem: 3958151937Sjkim 3959193267SjkimFixed a problem within the Resource Manager where support for the Generic 3960193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 3961193267Sjkimrecognized, parsed, disassembled, and displayed. 3962151937Sjkim 3963193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 3964193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 3965193267Sjkimreduces overall subsystem code size and code complexity. Affects the 3966193267Sjkimresource parsing and construction, disassembly, and debug dump output. 3967151937Sjkim 3968193267SjkimCleaned up and restructured the debug dump output for all resource 3969193267Sjkimdescriptors. Improved readability of the output and reduced code size. 3970151937Sjkim 3971193267SjkimFixed a problem where changes to internal data structures caused the 3972193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 3973151937Sjkim 3974193267SjkimCode and Data Size: The current and previous library sizes for the core 3975193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3976193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3977193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3978193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3979193267Sjkimand data size. Note that these values will vary depending on the efficiency 3980193267Sjkimof the compiler and the compiler options used during generation. 3981151937Sjkim 3982151937Sjkim Previous Release: 3983151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 3984151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 3985151937Sjkim Current Release: 3986151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 3987151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 3988151937Sjkim 3989151937Sjkim 3990151937Sjkim2) iASL Compiler/Disassembler: 3991151937Sjkim 3992193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 3993193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 3994193267Sjkimsimplifying compilation of the resulting ASL module. 3995151937Sjkim 3996193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 3997193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 3998193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 3999193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 4000193267Sjkimhandled correctly (especially "\\") 4001151937Sjkim 4002151937Sjkim---------------------------------------- 4003151937Sjkim02 September 2005. Summary of changes for version 20050902: 4004151937Sjkim 4005151937Sjkim1) ACPI CA Core Subsystem: 4006151937Sjkim 4007193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 4008193267Sjkimmechanisms for control method execution and recursive method invocation. 4009193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 4010193267Sjkimmessages seen on some systems. Recursive method invocation depth is 4011193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 4012151937Sjkim 4013193267SjkimCompletely eliminated all vestiges of support for the "module-level 4014193267Sjkimexecutable code" until this support is fully implemented and debugged. This 4015193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 4016193267Sjkimsome systems that invoke this support. 4017151937Sjkim 4018193267SjkimFixed a problem within the resource manager code where the transaction flags 4019193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 4020193267Sjkimspecific flag byte. 4021151937Sjkim 4022193267SjkimConsolidated duplicate code within the address descriptor resource manager 4023193267Sjkimcode, reducing overall subsystem code size. 4024151937Sjkim 4025193267SjkimFixed a fault when using the AML debugger "disassemble" command to 4026193267Sjkimdisassemble individual control methods. 4027151937Sjkim 4028193267SjkimRemoved references to the "release_current" directory within the Unix 4029193267Sjkimrelease package. 4030151937Sjkim 4031193267SjkimCode and Data Size: The current and previous core subsystem library sizes 4032193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 4033193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 4034193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 4035193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 4036193267SjkimNote that these values will vary depending on the efficiency of the compiler 4037193267Sjkimand the compiler options used during generation. 4038151937Sjkim 4039151937Sjkim Previous Release: 4040151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4041151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4042151937Sjkim Current Release: 4043151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4044151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4045151937Sjkim 4046151937Sjkim 4047151937Sjkim2) iASL Compiler/Disassembler: 4048151937Sjkim 4049193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 4050193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 4051193267SjkimInterrupt(). 4052151937Sjkim 4053193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 4054193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 4055193267Sjkimlist (range 0 - 15) 4056151937Sjkim 4057193267SjkimThe maximum length string literal within an ASL file is now restricted to 4058193267Sjkim200 characters as per the ACPI specification. 4059151937Sjkim 4060193267SjkimFixed a fault when using the -ln option (generate namespace listing). 4061151937Sjkim 4062193267SjkimImplemented an error check to determine if a DescriptorName within a 4063193267Sjkimresource descriptor has already been used within the current scope. 4064151937Sjkim 4065151937Sjkim---------------------------------------- 4066151937Sjkim15 August 2005. Summary of changes for version 20050815: 4067193267Sjkim 4068151937Sjkim1) ACPI CA Core Subsystem: 4069193267Sjkim 4070193267SjkimImplemented a full bytewise compare to determine if a table load request is 4071193267Sjkimattempting to load a duplicate table. The compare is performed if the table 4072193267Sjkimsignatures and table lengths match. This will allow different tables with 4073193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 4074193267Sjkimspecification, but discovered in the field nonetheless. 4075193267Sjkim 4076193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 4077193267Sjkim 4078193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4079193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4080193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4081193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4082193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4083193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4084193267Sjkimthe compiler options used during generation. 4085193267Sjkim 4086151937Sjkim Previous Release: 4087151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4088151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4089151937Sjkim Current Release: 4090151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4091151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4092193267Sjkim 4093193267Sjkim 4094151937Sjkim2) iASL Compiler/Disassembler: 4095193267Sjkim 4096193267SjkimFixed a problem where incorrect AML code could be generated for Package 4097193267Sjkimobjects if optimization is disabled (via the -oa switch). 4098193267Sjkim 4099193267SjkimFixed a problem with where incorrect AML code is generated for variable- 4100193267Sjkimlength packages when the package length is not specified and the number of 4101193267Sjkiminitializer values is greater than 255. 4102193267Sjkim 4103151937Sjkim 4104151937Sjkim---------------------------------------- 4105151937Sjkim29 July 2005. Summary of changes for version 20050729: 4106151937Sjkim 4107151937Sjkim1) ACPI CA Core Subsystem: 4108151937Sjkim 4109193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 4110193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 4111193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 4112193267SjkimVenkatesh Pallipadi. 4113151937Sjkim 4114193267SjkimRestructured the main interface to the AML parser in order to correctly 4115193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 4116193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 4117193267Sjkimmachines. With assistance from Alexey Starikovskiy. 4118151937Sjkim 4119193267SjkimSupport for "module level code" has been disabled in this version due to a 4120193267Sjkimnumber of issues that have appeared on various machines. The support can be 4121193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 4122193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 4123151937Sjkimdefault again. 4124151937Sjkim 4125193267SjkimModified the internal functions for debug print support to define the 4126193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 4127193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 4128151937Sjkim 4129151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 4130151937Sjkim 4131193267SjkimImplemented support to display an object count summary for the AML Debugger 4132193267Sjkimcommands Object and Methods. 4133151937Sjkim 4134193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4135193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4136193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4137193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4138193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4139193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4140193267Sjkimthe compiler options used during generation. 4141151937Sjkim 4142151937Sjkim Previous Release: 4143151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4144151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4145151937Sjkim Current Release: 4146151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4147151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4148151937Sjkim 4149151937Sjkim 4150151937Sjkim2) iASL Compiler/Disassembler: 4151151937Sjkim 4152193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 4153193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 4154193267Sjkimreserved control method. 4155151937Sjkim 4156151937Sjkim---------------------------------------- 4157151937Sjkim08 July 2005. Summary of changes for version 20050708: 4158151937Sjkim 4159151937Sjkim1) ACPI CA Core Subsystem: 4160151937Sjkim 4161193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 4162193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 4163193267Sjkimfunction that used the debug macros. This structure has been removed in 4164193267Sjkimfavor of declaring the individual elements as parameters to the debug 4165193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 4166193267SjkimACPI function calls at the cost of a small increase in the code size of the 4167193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 4168193267SjkimLen Brown. 4169151937Sjkim 4170193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 4171193267Sjkimheaders to define a macro that will return the current function name at 4172193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 4173193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 4174193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 4175193267Sjkimpointer per function.) This mechanism is used because apparently there 4176193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 4177151937Sjkim 4178193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 4179193267Sjkimnamespace objects created/deleted by ACPI tables and control method 4180193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 4181193267Sjkimthe wraparound problem present in the previous implementation. The size of 4182193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 4183151937SjkimStarikovskiy). 4184151937Sjkim 4185193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 4186193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 4187193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 4188193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 4189193267Sjkimeliminate bitfields entirely because of a lack of portability. 4190151937Sjkim 4191193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 4192193267Sjkimis a frequently used function and this improvement increases the performance 4193193267Sjkimof the entire subsystem (Alexey Starikovskiy). 4194151937Sjkim 4195193267SjkimFixed several possible memory leaks and the inverse - premature object 4196193267Sjkimdeletion (Alexey Starikovskiy). 4197151937Sjkim 4198193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4199193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4200193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4201193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4202193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4203193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4204193267Sjkimthe compiler options used during generation. 4205151937Sjkim 4206151937Sjkim Previous Release: 4207151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4208151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4209151937Sjkim Current Release: 4210151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4211151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4212151937Sjkim 4213151937Sjkim---------------------------------------- 4214151937Sjkim24 June 2005. Summary of changes for version 20050624: 4215151937Sjkim 4216151937Sjkim1) ACPI CA Core Subsystem: 4217151937Sjkim 4218193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 4219193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 4220193267Sjkimand type this object in any manner desired, simplifying the OSL 4221193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 4222193267SjkimLinux, and should be defined in the OS-specific header file for other 4223193267Sjkimoperating systems as required. 4224151937Sjkim 4225193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 4226193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 4227193267Sjkimchange was made for performance reasons, since this is the purpose of the 4228193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 4229193267SjkimAcpiOsAllocate interface. 4230151937Sjkim 4231193267SjkimImplemented a new AML debugger command named Businfo. This command displays 4232193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 4233193267Sjkim_HID, _UID, and _CID are displayed for these devices. 4234151937Sjkim 4235193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 4236193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 4237193267Sjkimchange was required because the global initialization now calls OSL 4238193267Sjkiminterfaces. 4239151937Sjkim 4240193267SjkimEnhanced the Dump command to display the entire contents of Package objects 4241193267Sjkim(including all sub-objects and their values.) 4242151937Sjkim 4243193267SjkimRestructured the code base to split some files because of size and/or 4244193267Sjkimbecause the code logically belonged in a separate file. New files are listed 4245193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 4246193267Sjkimbeen updated. 4247151937Sjkim utilities/utcache.c /* Local cache interfaces */ 4248151937Sjkim utilities/utmutex.c /* Local mutex support */ 4249151937Sjkim utilities/utstate.c /* State object support */ 4250151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 4251151937Sjkim 4252193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4253193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4254193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4255193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4256193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4257193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4258193267Sjkimthe compiler options used during generation. 4259151937Sjkim 4260151937Sjkim Previous Release: 4261151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4262151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4263151937Sjkim Current Release: 4264151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4265151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4266151937Sjkim 4267151937Sjkim 4268151937Sjkim2) iASL Compiler/Disassembler: 4269151937Sjkim 4270193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 4271193267Sjkimobject within a Case() statement caused a compile time exception. The 4272193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 4273151937Sjkim 4274151937Sjkim---------------------------------------- 4275151937Sjkim17 June 2005. Summary of changes for version 20050617: 4276151937Sjkim 4277151937Sjkim1) ACPI CA Core Subsystem: 4278151937Sjkim 4279193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 4280193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 4281193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 4282193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 4283193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 4284193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 4285193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 4286151937Sjkim AcpiOsCreateCache 4287151937Sjkim AcpiOsDeleteCache 4288151937Sjkim AcpiOsPurgeCache 4289151937Sjkim AcpiOsAcquireObject 4290151937Sjkim AcpiOsReleaseObject 4291151937Sjkim 4292193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 4293193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 4294193267SjkimNote: the current execution state (interrupt handler or not) is no longer 4295193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 4296193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 4297151937SjkimStarikovskiy. 4298151937Sjkim 4299193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 4300193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 4301193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 4302193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 4303193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 4304193267Sjkimonly the RSDT. 4305151937Sjkim 4306193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 4307193267Sjkimstring where the resulting output string is of zero length. It now correctly 4308193267Sjkimreturns a valid, null terminated string object instead of a string object 4309193267Sjkimwith a null pointer. 4310151937Sjkim 4311193267SjkimFixed a problem with the control method argument handling to allow a store 4312193267Sjkimto an Arg object that already contains an object of type Device. The Device 4313193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 4314151937Sjkim 4315167802Sjkim 4316193267SjkimEnhanced the debugger Find command to emit object values in addition to the 4317193267Sjkimfound object pathnames. The output format is the same as the dump namespace 4318193267Sjkimcommand. 4319151937Sjkim 4320193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 4321193267Sjkimof any Named integer object in the namespace (Previously, only method locals 4322193267Sjkimand args could be set.) 4323151937Sjkim 4324193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4325193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4326193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4327193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4328193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4329193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4330193267Sjkimthe compiler options used during generation. 4331151937Sjkim 4332151937Sjkim Previous Release: 4333151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4334151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4335151937Sjkim Current Release: 4336151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4337151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4338151937Sjkim 4339151937Sjkim 4340151937Sjkim2) iASL Compiler/Disassembler: 4341151937Sjkim 4342193267SjkimFixed a regression in the disassembler where if/else/while constructs were 4343193267Sjkimoutput incorrectly. This problem was introduced in the previous release 4344193267Sjkim(20050526). This problem also affected the single-step disassembly in the 4345193267Sjkimdebugger. 4346151937Sjkim 4347193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 4348193267Sjkimrarely) produce compile errors. 4349151937Sjkim 4350193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 4351193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 4352193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 4353193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 4354193267Sjkimerrors. 4355151937Sjkim 4356151937Sjkim---------------------------------------- 4357151937Sjkim26 May 2005. Summary of changes for version 20050526: 4358151937Sjkim 4359151937Sjkim1) ACPI CA Core Subsystem: 4360151937Sjkim 4361193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 4362193267Sjkimthe module level (not within a control method.) These opcodes are executed 4363193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 4364193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 4365193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 4366193267SjkimThis eliminates the "Encountered executable code at module level" warning 4367193267Sjkimthat was previously generated upon detection of such code. 4368151937Sjkim 4369193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 4370193267Sjkiminadvertently be generated during the lookup of namespace objects in the 4371193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 4372193267Sjkimproblem could occur during the resolution of forward references to namespace 4373193267Sjkimobjects. 4374151937Sjkim 4375193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 4376193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 4377193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 4378193267Sjkimcase, improving mutex performance (and overall subsystem performance) 4379193267Sjkimconsiderably. 4380151937Sjkim 4381193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 4382193267Sjkimerror conditions and error handling control paths. These fixes were 4383193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 4384151937Sjkim 4385193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 4386193267Sjkimto prevent a fault in this error case. 4387151937Sjkim 4388193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4389193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4390193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4391193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4392193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4393193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4394193267Sjkimthe compiler options used during generation. 4395151937Sjkim 4396151937Sjkim Previous Release: 4397151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4398151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4399151937Sjkim Current Release: 4400151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4401151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4402151937Sjkim 4403151937Sjkim 4404151937Sjkim2) iASL Compiler/Disassembler: 4405151937Sjkim 4406193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 4407193267Sjkimthe module level (not within a control method.) These operators will be 4408193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 4409193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 4410193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 4411193267Sjkimcode. 4412151937Sjkim 4413193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 4414193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 4415193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 4416193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 4417151937Sjkim 4418193267SjkimAn error message is now generated for the Mutex and Method operators if the 4419193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 4420151937Sjkim 4421193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 4422193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 4423193267SjkimThe actual underlying implementation of method argument typechecking is 4424193267Sjkimstill under development, however. 4425151937Sjkim 4426151937Sjkim---------------------------------------- 4427151937Sjkim13 May 2005. Summary of changes for version 20050513: 4428151937Sjkim 4429151937Sjkim1) ACPI CA Core Subsystem: 4430151937Sjkim 4431193267SjkimImplemented support for PCI Express root bridges -- added support for device 4432193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 4433151937Sjkim 4434193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 4435193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 4436193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 4437193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 4438151937Sjkim 4439193267SjkimFixed a problem where string and buffer objects with "static" pointers 4440193267Sjkim(pointers to initialization data within an ACPI table) were not handled 4441193267Sjkimconsistently. The internal object copy operation now always copies the data 4442193267Sjkimto a newly allocated buffer, regardless of whether the source object is 4443193267Sjkimstatic or not. 4444151937Sjkim 4445193267SjkimFixed a problem with the FromBCD operator where an implicit result 4446193267Sjkimconversion was improperly performed while storing the result to the target 4447193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 4448193267Sjkimconversion should never be performed on the output. 4449151937Sjkim 4450193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 4451193267Sjkimnamed object did not always completely overwrite the existing object stored 4452193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 4453193267Sjkimbuffer. 4454151937Sjkim 4455193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 4456193267Sjkimstructs for consistency. 4457151937Sjkim 4458193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4459193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4460193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4461193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4462193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4463193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4464193267Sjkimthe compiler options used during generation. 4465151937Sjkim 4466151937Sjkim Previous Release: 4467151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4468151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4469151937Sjkim Current Release: (Same sizes) 4470151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4471151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4472151937Sjkim 4473151937Sjkim 4474151937Sjkim2) iASL Compiler/Disassembler: 4475151937Sjkim 4476193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 4477193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 4478193267Sjkimis truncated to 32 bits. 4479151937Sjkim 4480193267SjkimFixed a problem with large package objects: if the static length of the 4481193267Sjkimpackage is greater than 255, the "variable length package" opcode is 4482193267Sjkimemitted. Previously, this caused an error. This requires an update to the 4483193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 4484193267Sjkim255 elements are not allowed. 4485151937Sjkim 4486193267SjkimThe disassembler now correctly handles variable length packages and packages 4487193267Sjkimlarger than 255 elements. 4488151937Sjkim 4489151937Sjkim---------------------------------------- 4490151937Sjkim08 April 2005. Summary of changes for version 20050408: 4491151937Sjkim 4492151937Sjkim1) ACPI CA Core Subsystem: 4493151937Sjkim 4494193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 4495193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 4496193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 4497151937Sjkim 4498193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 4499193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 4500193267Sjkimlibraries. All references to the C library strupr function have been removed 4501193267Sjkimfrom the headers. 4502151937Sjkim 4503193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 4504193267Sjkimthe static attribute have been moved from the headers to the owning C file. 4505151937Sjkim 4506193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 4507193267Sjkimutility). This option allows the utility to extract individual ACPI tables 4508193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 4509193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 4510193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 4511193267Sjkimthe Linux/Unix environment (but should be soon). 4512193267Sjkim 4513193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 4514193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 4515193267SjkimAcpiDmp. 4516151937Sjkim 4517193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4518193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4519193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4520193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4521193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4522193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4523193267Sjkimthe compiler options used during generation. 4524151937Sjkim 4525151937Sjkim Previous Release: 4526151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4527151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4528151937Sjkim Current Release: 4529151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4530151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4531151937Sjkim 4532151937Sjkim 4533151937Sjkim2) iASL Compiler/Disassembler: 4534151937Sjkim 4535193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 4536193267SjkimACPI table header within the input file is not longer than the actual input 4537193267Sjkimfile size. This indicates some kind of file or table corruption. 4538151937Sjkim 4539151937Sjkim---------------------------------------- 4540151937Sjkim29 March 2005. Summary of changes for version 20050329: 4541151937Sjkim 4542151937Sjkim1) ACPI CA Core Subsystem: 4543151937Sjkim 4544193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 4545193267Sjkimlength zero (A CreateField with a length operand of zero.) 4546151937Sjkim 4547193267SjkimThe interpreter now issues a warning whenever executable code at the module 4548193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 4549193267Sjkimprevalence of this type of code. 4550151937Sjkim 4551193267SjkimImplemented support for references to named objects (other than control 4552193267Sjkimmethods) within package objects. 4553151937Sjkim 4554193267SjkimEnhanced package object output for the debug object. Package objects are now 4555193267Sjkimcompletely dumped, showing all elements. 4556151937Sjkim 4557193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 4558193267Sjkimnow be written to the debug object (for example, a device object can be 4559193267Sjkimwritten, and the type of the object will be displayed.) 4560151937Sjkim 4561193267SjkimThe "static" qualifier has been added to all local functions across both the 4562193267Sjkimcore subsystem and the iASL compiler. 4563151937Sjkim 4564193267SjkimThe number of "long" lines (> 80 chars) within the source has been 4565193267Sjkimsignificantly reduced, by about 1/3. 4566151937Sjkim 4567193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 4568193267Sjkimprototyped (even static functions) and the formatting is consistent. 4569151937Sjkim 4570151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 4571151937Sjkim 4572151937SjkimRemoved several obsolete functions that were no longer used. 4573151937Sjkim 4574193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4575193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4576193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4577193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4578193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4579193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4580193267Sjkimthe compiler options used during generation. 4581151937Sjkim 4582151937Sjkim Previous Release: 4583151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4584151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4585151937Sjkim Current Release: 4586151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4587151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4588151937Sjkim 4589151937Sjkim 4590167802Sjkim 4591151937Sjkim2) iASL Compiler/Disassembler: 4592151937Sjkim 4593193267SjkimFixed a problem with the resource descriptor generation/support. For the 4594193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 4595193267Sjkimboth must be not present - can't have one without the other. 4596151937Sjkim 4597193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 4598193267Sjkimoccurred during the compilation. 4599151937Sjkim 4600151937Sjkim 4601151937Sjkim---------------------------------------- 4602151937Sjkim09 March 2005. Summary of changes for version 20050309: 4603151937Sjkim 4604151937Sjkim1) ACPI CA Core Subsystem: 4605151937Sjkim 4606193267SjkimThe string-to-buffer implicit conversion code has been modified again after 4607193267Sjkima change to the ACPI specification. In order to match the behavior of the 4608193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 4609193267Sjkimthe source string is smaller than an existing target buffer. This change 4610193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 4611151937SjkimAE_AML_BUFFER_LIMIT issues. 4612151937Sjkim 4613193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 4614193267Sjkimthe general case. Rather than attempt to determine when a method is about to 4615193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 4616193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 4617193267Sjkimthere will always be a saved implicit return value. This feature is only 4618193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 4619193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 4620151937Sjkim 4621193267SjkimImplemented implicit conversion support for the predicate (operand) of the 4622193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 4623193267Sjkimconverted to Integers. 4624151937Sjkim 4625193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 4626193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 4627193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 4628193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 4629193267Sjkimwith the first character as the most significant digit, and ending with the 4630193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 4631193267Sjkimnon-hex character terminates the conversion and this is the code that was 4632193267Sjkimchanged. 4633151937Sjkim 4634193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 4635193267Sjkimon an Index of a Package which pointed to a null package element. The 4636193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 4637151937Sjkim 4638193267SjkimFixed a problem where the While operator used excessive memory by not 4639193267Sjkimproperly popping the result stack during execution. There was no memory leak 4640193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 4641151937Sjkim 4642193267SjkimFixed a problem where references to control methods within Package objects 4643193267Sjkimcaused the method to be invoked, instead of producing a reference object 4644193267Sjkimpointing to the method. 4645151937Sjkim 4646193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 4647193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 4648193267SjkimStarikovskiy.) 4649151937Sjkim 4650193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4651193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4652193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4653193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4654193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4655193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4656193267Sjkimthe compiler options used during generation. 4657151937Sjkim 4658151937Sjkim Previous Release: 4659151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4660151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4661151937Sjkim Current Release: 4662151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4663151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4664151937Sjkim 4665151937Sjkim 4666151937Sjkim2) iASL Compiler/Disassembler: 4667151937Sjkim 4668193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 4669193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 4670193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 4671193267Sjkimupdate has been written for this case. 4672151937Sjkim 4673193267SjkimFor tables other than the DSDT, namepath optimization is automatically 4674193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 4675193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 4676151937Sjkim 4677193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 4678193267Sjkiminadvertently omitted from the ACPI specification, and will require an 4679193267Sjkimupdate to the spec. 4680151937Sjkim 4681193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 4682193267Sjkimwas made because some vendors place non-ascii characters within comments. 4683193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 4684193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 4685151937Sjkim 4686193267SjkimFixed a problem with the CondRefOf operator where the compiler was 4687193267Sjkiminappropriately checking for the existence of the target. Since the point of 4688193267Sjkimthe operator is to check for the existence of the target at run-time, the 4689193267Sjkimcompiler no longer checks for the target existence. 4690151937Sjkim 4691193267SjkimFixed a problem where errors generated from the internal AML interpreter 4692193267Sjkimduring constant folding were not handled properly, causing a fault. 4693151937Sjkim 4694193267SjkimFixed a problem with overly aggressive range checking for the Stall 4695193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 4696193267Sjkimtype Integer. All other operand types cannot be statically checked. 4697151937Sjkim 4698193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 4699193267Sjkimand ObjectType operators were not treated properly. They are now treated as 4700193267Sjkimactual references, not method invocations. 4701151937Sjkim 4702193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 4703193267Sjkima number of releases ago. 4704151937Sjkim 4705193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 4706193267SjkimThe compiler now cleanly reports and recovers from errors in the field 4707193267Sjkimcomponent (FieldUnit) list. 4708151937Sjkim 4709193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 4710193267SjkimTRS and TTP were not always handled correctly. 4711151937Sjkim 4712151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 4713151937Sjkim 4714151937Sjkim---------------------------------------- 4715151937Sjkim28 February 2005. Summary of changes for version 20050228: 4716151937Sjkim 4717151937Sjkim1) ACPI CA Core Subsystem: 4718151937Sjkim 4719193267SjkimFixed a problem where the result of an Index() operator (an object 4720193267Sjkimreference) must increment the reference count on the target object for the 4721193267Sjkimlife of the object reference. 4722151937Sjkim 4723193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 4724193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 4725193267Sjkimresource descriptors. 4726151937Sjkim 4727193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 4728193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 4729193267Sjkimabove. 4730151937Sjkim 4731151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 4732151937Sjkim 4733193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 4734193267Sjkimstatus/enable registers. 4735151937Sjkim 4736193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 4737193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 4738151937Sjkim 4739151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 4740151937Sjkim 4741193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 4742193267Sjkimat runtime. 4743151937Sjkim 4744193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4745193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4746193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4747193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4748193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4749193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4750193267Sjkimthe compiler options used during generation. 4751151937Sjkim 4752151937Sjkim Previous Release: 4753151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4754151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4755151937Sjkim Current Release: 4756151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4757151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4758151937Sjkim 4759151937Sjkim 4760151937Sjkim2) iASL Compiler/Disassembler: 4761151937Sjkim 4762193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 4763193267Sjkimstrings less than two characters long. 4764151937Sjkim 4765193267SjkimFixed a problem with constant folding where the result of the Index() 4766193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 4767193267Sjkima type3 opcode and this will require an update to the ACPI specification. 4768151937Sjkim 4769193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 4770193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 4771193267Sjkimthe disassembly of the resource descriptor. 4772151937Sjkim 4773151937Sjkim 4774151937Sjkim ---------------------------------------- 4775151937Sjkim11 February 2005. Summary of changes for version 20050211: 4776151937Sjkim 4777151937Sjkim1) ACPI CA Core Subsystem: 4778151937Sjkim 4779193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 4780193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 4781193267Sjkimof just type integer. Package elements are implicitly converted to the type 4782193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 4783193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 4784193267Sjkimerrata change to the ACPI specification as this support was intended for 4785193267SjkimACPI 3.0, but was inadvertently omitted. 4786151937Sjkim 4787193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 4788193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 4789193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 4790193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 4791193267Sjkimspec.) The problem was introduced when code was added to truncate the 4792193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 4793151937Sjkim 4794193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 4795193267Sjkimwould get confused if two such operators were used as operands to an ASL 4796193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 4797193267Sjkimstack was not being popped after the execution of these operators, resulting 4798193267Sjkimin an AE_NO_RETURN_VALUE exception. 4799151937Sjkim 4800193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 4801193267Sjkimreference object returned from Index was inadvertently resolved to an actual 4802193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 4803193267SjkimStore() was modified to restrict the object types that can be used as the 4804151937Sjkimsource operand (to match the ACPI specification.) 4805151937Sjkim 4806193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 4807151937Sjkim 4808193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 4809151937Sjkim 4810193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 4811151937Sjkim 4812193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4813193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4814193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4815193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4816193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4817193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4818193267Sjkimthe compiler options used during generation. 4819151937Sjkim 4820151937Sjkim Previous Release: 4821151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4822151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4823151937Sjkim Current Release: 4824151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4825151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4826151937Sjkim 4827151937Sjkim 4828151937Sjkim2) iASL Compiler/Disassembler: 4829151937Sjkim 4830193267SjkimFixed a code generation problem in the constant folding optimization code 4831193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 4832193267Sjkimobject (i.e., a reduced type 5 opcode.) 4833151937Sjkim 4834193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 4835193267Sjkimincorrect return type in the internal opcode information table. 4836151937Sjkim 4837151937Sjkim---------------------------------------- 4838151937Sjkim25 January 2005. Summary of changes for version 20050125: 4839151937Sjkim 4840151937Sjkim1) ACPI CA Core Subsystem: 4841151937Sjkim 4842193267SjkimFixed a recently introduced problem with the Global Lock where the 4843193267Sjkimunderlying semaphore was not created. This problem was introduced in 4844193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 4845193267SjkimAcquire() operation on _GL. 4846151937Sjkim 4847193267SjkimThe local object cache is now optional, and is disabled by default. Both 4848193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 4849193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 4850193267Sjkimto enable the local cache. 4851151937Sjkim 4852193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 4853193267Sjkimoptional "implicit return" support where an error was returned if no return 4854193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 4855193267Sjkimin this case and the implicitly returned object is deleted. 4856193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 4857193267Sjkimmethods such as _STA and _INI where the return type is known up front. 4858151937Sjkim 4859193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 4860193267Sjkiman error if an attempt is made to convert a null string, a string of only 4861193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 4862193267Sjkimand explicit conversion via the ToInteger() operator. 4863151937Sjkim 4864193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 4865193267Sjkimnot needed for normal operation and should increase the performance of the 4866193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 4867193267Sjkimagain. 4868151937Sjkim 4869193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 4870193267Sjkimthe first time. 4871151937Sjkim 4872193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4873193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4874193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4875193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4876193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4877193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4878193267Sjkimthe compiler options used during generation. 4879151937Sjkim 4880151937Sjkim Previous Release: 4881151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4882151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4883151937Sjkim Current Release: 4884151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4885151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4886151937Sjkim 4887151937Sjkim2) iASL Compiler/Disassembler: 4888151937Sjkim 4889193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 4890193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 4891193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 4892193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 4893193267Sjkimwarning. 4894151937Sjkim 4895193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 4896193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 4897193267Sjkimbuffers and strings. 4898151937Sjkim 4899193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 4900193267Sjkimthe switch value as the first operand, not the second. The case value is now 4901193267Sjkimthe second operand, and this allows the case value to be implicitly 4902193267Sjkimconverted to the type of the switch value, not the other way around. 4903151937Sjkim 4904193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 4905193267Sjkimthe control method, not at the global level. This means that there are now 4906193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 4907193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 4908151937Sjkim 4909151937Sjkim---------------------------------------- 4910151937Sjkim14 January 2005. Summary of changes for version 20050114: 4911151937Sjkim 4912193267SjkimAdded 2005 copyright to all module headers. This affects every module in 4913193267Sjkimthe core subsystem, iASL compiler, and the utilities. 4914151937Sjkim 4915151937Sjkim1) ACPI CA Core Subsystem: 4916151937Sjkim 4917193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 4918193267Sjkimnull terminator was not included in the buffer after conversion, but there 4919193267Sjkimis existing ASL that assumes the string null terminator is included. This is 4920193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 4921193267Sjkimintroduced in the previous version when the code was updated to correctly 4922193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 4923193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 4924193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 4925193267Sjkimoperator. 4926151937Sjkim 4927193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 4928193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 4929193267Sjkimas initialized. 4930151937Sjkim 4931167802Sjkim 4932193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 4933193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 4934193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 4935151937Sjkim 4936193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 4937193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 4938193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 4939193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 4940193267Sjkimnecessary, the original behavior can be restored by enabling the 4941151937SjkimEnableInterpreterSlack flag. 4942151937Sjkim 4943193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 4944193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 4945193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 4946193267Sjkimfor example. 4947151937Sjkim 4948193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 4949193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 4950193267Sjkimthe supported ACPI version (This is the function of the _REV method). 4951151937Sjkim 4952193267SjkimUpdated the _REV predefined method to return the currently supported version 4953193267Sjkimof ACPI, now 3. 4954151937Sjkim 4955151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 4956151937Sjkim 4957193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4958193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4959193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4960193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4961193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4962193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4963193267Sjkimthe compiler options used during generation. 4964151937Sjkim 4965151937Sjkim Previous Release: 4966151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4967151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 4968151937Sjkim Current Release: 4969151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4970151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4971151937Sjkim 4972151937Sjkim---------------------------------------- 4973151937Sjkim10 December 2004. Summary of changes for version 20041210: 4974151937Sjkim 4975193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 4976193267SjkimACPI CA core subsystem. 4977151937Sjkim 4978151937Sjkim1) ACPI CA Core Subsystem: 4979151937Sjkim 4980193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 4981193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 4982193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 4983151937Sjkim 4984193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 4985193267Sjkimstring to be produced. 4986151937Sjkim 4987193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 4988193267Sjkimroutine where the length of the resulting buffer was not truncated to the 4989193267Sjkimnew size (if the target buffer already existed). 4990151937Sjkim 4991193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4992193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4993193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4994193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4995193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4996193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4997193267Sjkimthe compiler options used during generation. 4998151937Sjkim 4999151937Sjkim Previous Release: 5000151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5001151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5002151937Sjkim Current Release: 5003151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5004151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5005151937Sjkim 5006151937Sjkim 5007151937Sjkim2) iASL Compiler/Disassembler: 5008151937Sjkim 5009193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 5010193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 5011193267SjkimIncludes support in the disassembler. 5012151937Sjkim 5013193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 5014193267SjkimAccessSize. 5015151937Sjkim 5016193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 5017193267Sjkimreferencing bit 0 instead of bit 1. 5018151937Sjkim 5019193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 5020151937Sjkim 5021193267SjkimFixed a problem with the predefined resource descriptor names where 5022193267Sjkimincorrect AML code was generated if the offset within the resource buffer 5023193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 5024193267Sjkimbut did not update the surrounding package lengths. 5025151937Sjkim 5026193267SjkimChanges to the Dma macro: All channels within the channel list must be in 5027193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 5028193267Sjkimoptional (default is BusMaster). 5029151937Sjkim 5030193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 5031151937Sjkim 5032193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 5033151937Sjkim 5034151937Sjkim---------------------------------------- 5035151937Sjkim03 December 2004. Summary of changes for version 20041203: 5036151937Sjkim 5037151937Sjkim1) ACPI CA Core Subsystem: 5038151937Sjkim 5039193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 5040193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 5041193267Sjkimconditions. 5042151937Sjkim 5043193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 5044193267Sjkimoperators where the input operand could be inadvertently deleted if no 5045193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 5046193267Sjkimobject.) 5047151937Sjkim 5048193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 5049193267Sjkimexception code was returned if the resulting string would be > 200 chars. 5050193267SjkimAE_STRING_LIMIT is now returned. 5051151937Sjkim 5052193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 5053193267Sjkimreturned, even if the operation failed. 5054151937Sjkim 5055193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 5056193267Sjkimsemaphores to be allocated. 5057151937Sjkim 5058193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5059193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5060193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5061193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5062193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5063193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5064193267Sjkimthe compiler options used during generation. 5065151937Sjkim 5066151937Sjkim Previous Release: 5067151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5068151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5069151937Sjkim Current Release: 5070151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5071151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5072151937Sjkim 5073151937Sjkim 5074151937Sjkim2) iASL Compiler/Disassembler: 5075151937Sjkim 5076193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 5077193267Sjkimrecently introduced in 20041119. 5078151937Sjkim 5079193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 5080193267Sjkimbyte was inadvertently set to zero. 5081151937Sjkim 5082151937Sjkim---------------------------------------- 5083138287Smarks19 November 2004. Summary of changes for version 20041119: 5084138287Smarks 5085138287Smarks1) ACPI CA Core Subsystem: 5086138287Smarks 5087193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 5088193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 5089193267Sjkimbuffers and strings to integers. 5090138287Smarks 5091193267SjkimImplemented support to store a value to an Index() on a String object. This 5092193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 5093138287Smarks 5094193267SjkimImplemented new behavior for storing objects to individual package elements 5095193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 5096193267Sjkimconversion rules if an object was already present at the index. The new 5097193267Sjkimbehavior is to simply delete any existing object and directly store the new 5098193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 5099193267SjkimACPI implementations behave in this manner. (This is the root of the 5100193267SjkimAE_BAD_HEX_CONSTANT issue.) 5101138287Smarks 5102193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 5103193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 5104193267SjkimRSDP signature is found with a valid checksum. 5105138287Smarks 5106193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5107193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5108193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5109193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5110193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5111193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5112193267Sjkimthe compiler options used during generation. 5113138287Smarks 5114151937Sjkim Previous Release: 5115151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5116151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5117151937Sjkim Current Release: 5118151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5119151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5120138287Smarks 5121138287Smarks 5122138287Smarks2) iASL Compiler/Disassembler: 5123138287Smarks 5124138287SmarksFixed a missing semicolon in the aslcompiler.y file. 5125138287Smarks 5126138287Smarks---------------------------------------- 5127138287Smarks05 November 2004. Summary of changes for version 20041105: 5128138287Smarks 5129138287Smarks1) ACPI CA Core Subsystem: 5130138287Smarks 5131193267SjkimImplemented support for FADT revision 2. This was an interim table (between 5132193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 5133138287Smarks 5134193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 5135193267Sjkimvariables in a control method. The variables are initialized to an Integer 5136193267Sjkimobject with a value of zero. This support is enabled by setting the 5137193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 5138138287Smarks 5139193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 5140193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 5141193267Sjkimdepending on the parent table revision). 5142138287Smarks 5143193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 5144193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 5145193267Sjkimreturn values for some objects. 5146138287Smarks 5147138287SmarksFixed some possible memory leaks during exceptional conditions. 5148138287Smarks 5149193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5150193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5151193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5152193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5153193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5154193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5155193267Sjkimthe compiler options used during generation. 5156138287Smarks 5157138287Smarks Previous Release: 5158138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5159138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5160138287Smarks Current Release: 5161138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5162138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5163138287Smarks 5164138287Smarks 5165138287Smarks2) iASL Compiler/Disassembler: 5166138287Smarks 5167138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 5168138287Smarks 5169193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 5170193267Sjkimsupport for semicolons. 5171138287Smarks 5172138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 5173138287Smarks 5174193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 5175193267Sjkimemitted properly if the target of the scope was in another table. 5176138287Smarks 5177138287Smarks---------------------------------------- 5178138287Smarks15 October 2004. Summary of changes for version 20041015: 5179138287Smarks 5180193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 5181193267Sjkimevaluation to test/verify the following areas. Other suggestions are 5182193267Sjkimwelcome. This will result in an increase in the frequency of releases and 5183193267Sjkimthe number of bug fixes in the next few months. 5184138287Smarks - Functional tests for all ASL/AML operators 5185138287Smarks - All implicit/explicit type conversions 5186138287Smarks - Bit fields and operation regions 5187138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 5188138287Smarks - Exceptional conditions, both compiler and interpreter 5189138287Smarks - Dynamic object deletion and memory leaks 5190138287Smarks - ACPI 3.0 support when implemented 5191138287Smarks - External interfaces to the ACPI subsystem 5192138287Smarks 5193138287Smarks 5194138287Smarks1) ACPI CA Core Subsystem: 5195138287Smarks 5196193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 5197193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 5198193267Sjkimfield within the non-aligned ACPI generic address structure. 5199138287Smarks 5200193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 5201193267Sjkimoperand resolution could result in the inadvertent modification of the 5202193267Sjkimoriginal integer when the integer is passed into another method as an 5203193267Sjkimargument and the arg is then incremented/decremented. 5204138287Smarks 5205193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 5206193267SjkimBCD number were truncated during conversion. 5207138287Smarks 5208193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 5209193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 5210193267Sjkimobject. 5211138287Smarks 5212193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 5213193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 5214193267Sjkimobjects. 5215138287Smarks 5216193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 5217193267Sjkimspecification) during the Concatenate operator with two string operands. 5218138287Smarks 5219193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5220193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5221193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5222193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5223193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5224193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5225193267Sjkimthe compiler options used during generation. 5226138287Smarks 5227138287Smarks Previous Release: 5228138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5229138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5230138287Smarks Current Release: 5231138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5232138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5233138287Smarks 5234138287Smarks 5235167802Sjkim 5236138287Smarks2) iASL Compiler/Disassembler: 5237138287Smarks 5238193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 5239193267Sjkim(returns 0 as per the ACPI specification). 5240138287Smarks 5241193267SjkimFixed a problem where the compiler would fault if there was a syntax error 5242193267Sjkimin the FieldName of all of the various CreateXXXField operators. 5243138287Smarks 5244193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 5245193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 5246193267SjkimU is an uppercase letter and N is a hex digit. 5247138287Smarks 5248138287Smarks 5249138287Smarks---------------------------------------- 5250138287Smarks06 October 2004. Summary of changes for version 20041006: 5251138287Smarks 5252138287Smarks1) ACPI CA Core Subsystem: 5253138287Smarks 5254193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 5255193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 5256138287Smarks 5257193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 5258193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 5259193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 5260193267Sjkimout of the clock handling business, since the host OS (usually) performs 5261193267Sjkimthis function. 5262138287Smarks 5263193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 5264193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 5265193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 5266193267Sjkimare now used to extract the address to a local variable before use. 5267138287Smarks 5268193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 5269193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 5270193267Sjkim(prefixed with "0x"). 5271138287Smarks 5272193267SjkimFixed a problem where the string length in the string object created as a 5273193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 5274193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 5275193267Sjkimand ToHexString operators. 5276138287Smarks 5277193267SjkimFixed two problems in the ToString operator. If the length parameter was 5278193267Sjkimzero, an incorrect string object was created and the value of the input 5279193267Sjkimlength parameter was inadvertently changed from zero to Ones. 5280138287Smarks 5281193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 5282193267Sjkimresource macro was ignored. 5283138287Smarks 5284193267SjkimSimplified the interfaces to the internal division functions, reducing code 5285193267Sjkimsize and complexity. 5286138287Smarks 5287193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5288193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5289193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5290193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5291193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5292193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5293193267Sjkimthe compiler options used during generation. 5294138287Smarks 5295138287Smarks Previous Release: 5296138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5297138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5298138287Smarks Current Release: 5299138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5300138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5301138287Smarks 5302138287Smarks 5303138287Smarks2) iASL Compiler/Disassembler: 5304138287Smarks 5305138287SmarksImplemented support for the ACPI 3.0 Timer operator. 5306138287Smarks 5307193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 5308193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 5309193267Sjkimstatement to If...Else pairs. 5310138287Smarks 5311193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 5312193267Sjkimoperands). 5313138287Smarks 5314193267SjkimFixed a problem with code generation for the ElseIf operator where the 5315193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 5316193267Sjkimloss of some code. 5317138287Smarks 5318138287Smarks---------------------------------------- 5319138287Smarks22 September 2004. Summary of changes for version 20040922: 5320138287Smarks 5321138287Smarks1) ACPI CA Core Subsystem: 5322138287Smarks 5323193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 5324193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 5325193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 5326193267Sjkimthis operator also. 5327138287Smarks 5328193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 5329193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 5330193267Sjkimbuffer already exists. 5331138287Smarks 5332193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 5333193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 5334193267Sjkimrelated code considerably. This will require changes/updates to all OS 5335193267Sjkiminterface layers (OSLs.) 5336138287Smarks 5337193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 5338193267Sjkima system exception handler to be installed. This handler is invoked upon any 5339193267Sjkimrun-time exception that occurs during control method execution. 5340138287Smarks 5341193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 5342138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 5343138287Smarks 5344193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5345193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5346193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5347193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5348193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5349193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5350193267Sjkimthe compiler options used during generation. 5351138287Smarks 5352138287Smarks Previous Release: 5353138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5354138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5355138287Smarks Current Release: 5356138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5357138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5358138287Smarks 5359138287Smarks 5360138287Smarks2) iASL Compiler/Disassembler: 5361138287Smarks 5362193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 5363193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 5364193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 5365138287Smarks 5366193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 5367193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 5368193267Sjkimfile. 5369138287Smarks 5370193267SjkimImplemented the "-r" option to override the Revision in the table header. 5371193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 5372193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 5373193267Sjkim32-bit or 64-bit integers. 5374138287Smarks 5375138287Smarks 5376138287Smarks---------------------------------------- 5377138287Smarks27 August 2004. Summary of changes for version 20040827: 5378138287Smarks 5379138287Smarks1) ACPI CA Core Subsystem: 5380138287Smarks 5381193267Sjkim- Implemented support for implicit object conversion in the non-numeric 5382193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 5383193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 5384193267Sjkimthe second operand is implicitly converted on the fly to match the type of 5385193267Sjkimthe first operand. For example: 5386138287Smarks 5387138287Smarks LEqual (Source1, Source2) 5388138287Smarks 5389193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 5390193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 5391193267Sjkimimplicitly converted if necessary to match the type of Source1. 5392138287Smarks 5393193267Sjkim- Updated and corrected the behavior of the string conversion support. The 5394193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 5395193267Sjkimspecification) are as follows: 5396138287Smarks 5397193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 5398193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 5399193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 5400193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 5401193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 5402193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 5403193267Sjkim(0-FF) separated by spaces. 5404138287Smarks 5405138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 5406138287Smarks 5407193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 5408193267Sjkimone byte too short in the case of a node in the root scope. This could 5409193267Sjkimcause a fault during debug output. 5410138287Smarks 5411193267Sjkim- Code 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, 11.5K Data, 89.4K Total 5421138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5422138287Smarks Current Release: 5423138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5424138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5425138287Smarks 5426138287Smarks 5427138287Smarks2) iASL Compiler/Disassembler: 5428138287Smarks 5429138287Smarks- Fixed a Linux generation error. 5430138287Smarks 5431138287Smarks 5432138287Smarks---------------------------------------- 5433138287Smarks16 August 2004. Summary of changes for version 20040816: 5434138287Smarks 5435138287Smarks1) ACPI CA Core Subsystem: 5436138287Smarks 5437193267SjkimDesigned and implemented support within the AML interpreter for the so- 5438193267Sjkimcalled "implicit return". This support returns the result of the last ASL 5439193267Sjkimoperation within a control method, in the absence of an explicit Return() 5440193267Sjkimoperator. A few machines depend on this behavior, even though it is not 5441193267Sjkimexplicitly supported by the ASL language. It is optional support that can 5442193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 5443138287Smarks 5444193267SjkimRemoved support for the PCI_Config address space from the internal low level 5445193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 5446193267Sjkimsupport was not used internally, and would not work correctly anyway because 5447193267Sjkimthe PCI bus number and segment number were not supported. There are 5448193267Sjkimseparate interfaces for PCI configuration space access because of the unique 5449138287Smarksinterface. 5450138287Smarks 5451193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5452193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5453193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5454193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5455193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5456193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5457193267Sjkimthe compiler options used during generation. 5458138287Smarks 5459138287Smarks Previous Release: 5460138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5461138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5462138287Smarks Current Release: 5463138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5464138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5465138287Smarks 5466138287Smarks 5467138287Smarks2) iASL Compiler/Disassembler: 5468138287Smarks 5469193267SjkimFixed a problem where constants in ASL expressions at the root level (not 5470193267Sjkimwithin a control method) could be inadvertently truncated during code 5471193267Sjkimgeneration. This problem was introduced in the 20040715 release. 5472138287Smarks 5473138287Smarks 5474138287Smarks---------------------------------------- 5475138287Smarks15 July 2004. Summary of changes for version 20040715: 5476138287Smarks 5477138287Smarks1) ACPI CA Core Subsystem: 5478138287Smarks 5479193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 5480193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 5481193267Sjkimincrease flexibility of the interfaces. 5482138287Smarks 5483193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 5484193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 5485193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 5486193267Sjkimto C library "strcmp". 5487138287Smarks 5488193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 5489193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 5490193267Sjkimreduced from 168 bytes to 32 bytes. 5491138287Smarks 5492193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 5493193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 5494193267Sjkimconstructs. Default setting is FALSE. 5495138287Smarks 5496193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 5497193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 5498193267Sjkimregion definition if the field is within the region length rounded up to the 5499193267Sjkimnext access width boundary (a common coding error.) 5500138287Smarks 5501193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 5502193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 5503193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 5504138287Smarks 5505193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 5506193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 5507193267Sjkimcomplaining. 5508138287Smarks 5509193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5510193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5511193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5512193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5513193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5514193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5515193267Sjkimthe compiler options used during generation. 5516138287Smarks 5517138287Smarks Previous Release: 5518138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5519138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5520138287Smarks Current Release: 5521138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5522138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5523138287Smarks 5524138287Smarks 5525138287Smarks2) iASL Compiler/Disassembler: 5526138287Smarks 5527193267SjkimImplemented full support for Package objects within the Case() operator. 5528193267SjkimNote: The Break() operator is currently not supported within Case blocks 5529193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 5530193267Sjkim1.0 interpreters. 5531138287Smarks 5532167802Sjkim 5533193267SjkimFixed a problem where complex terms were not supported properly within the 5534193267SjkimSwitch() operator. 5535138287Smarks 5536193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 5537193267Sjkimform "_T_x". (Used in Switch/Case operators.) 5538138287Smarks 5539193267SjkimEliminated optimization messages for "_T_x" objects and small constants 5540193267Sjkimwithin the DefinitionBlock operator. 5541138287Smarks 5542138287Smarks 5543138287Smarks---------------------------------------- 5544138287Smarks15 June 2004. Summary of changes for version 20040615: 5545138287Smarks 5546138287Smarks1) ACPI CA Core Subsystem: 5547138287Smarks 5548193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5549193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5550193267SjkimLLessEqual. 5551138287Smarks 5552193267SjkimAll directory names in the entire source package are lower case, as they 5553193267Sjkimwere in earlier releases. 5554138287Smarks 5555193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 5556193267Sjkima single control method. 5557138287Smarks 5558193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5559193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5560193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5561193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5562193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5563193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5564193267Sjkimthe compiler options used during generation. 5565138287Smarks 5566138287Smarks Previous Release: 5567138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5568138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5569167802Sjkim 5570138287Smarks Current Release: 5571138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5572138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5573138287Smarks 5574138287Smarks 5575138287Smarks2) iASL Compiler/Disassembler: 5576138287Smarks 5577193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5578193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5579193267SjkimLLessEqual. 5580138287Smarks 5581193267SjkimAll directory names in the entire source package are lower case, as they 5582193267Sjkimwere in earlier releases. 5583138287Smarks 5584193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 5585193267Sjkimnot found. 5586138287Smarks 5587193267SjkimFixed an issue with the Windows version of the compiler where later versions 5588193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 5589193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 5590193267Sjkimd<nofilename> options. The compiler now looks for both strings as 5591193267Sjkimnecessary. 5592138287Smarks 5593193267SjkimFixed a problem with compiler namepath optimization where a namepath within 5594193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 5595193267Sjkimthe current scope path. 5596138287Smarks 5597138287Smarks---------------------------------------- 5598131440Smarks27 May 2004. Summary of changes for version 20040527: 5599131440Smarks 5600131440Smarks1) ACPI CA Core Subsystem: 5601131440Smarks 5602193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 5603193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 5604193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 5605193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 5606193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 5607131440Smarksany machines that place the RSDP in the EBDA, however. 5608131440Smarks 5609193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 5610193267Sjkimarguments. Obsolete code that was causing the problem was removed. 5611131440Smarks 5612193267SjkimFound and fixed a problem in the Field Support Code where data could be 5613193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 5614193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 5615193267Sjkimcalculation code into a common procedure. 5616131440Smarks 5617131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 5618131440Smarks 5619167802Sjkim 5620193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5621193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5622193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5623193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5624193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5625193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5626193267Sjkimthe compiler options used during generation. 5627131440Smarks 5628131440Smarks Previous Release: 5629131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5630131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5631131440Smarks Current Release: 5632131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5633131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5634131440Smarks 5635131440Smarks 5636131440Smarks2) iASL Compiler/Disassembler: 5637131440Smarks 5638193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 5639193267Sjkim64-bit constant. 5640131440Smarks 5641131440Smarks---------------------------------------- 5642129684Snjl14 May 2004. Summary of changes for version 20040514: 5643129684Snjl 5644129684Snjl1) ACPI CA Core Subsystem: 5645129684Snjl 5646193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 5647193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 5648129684Snjl 5649129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 5650129684Snjl 5651193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 5652193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 5653193267Sjkimthe new AcpiEv* calls as appropriate. 5654129684Snjl 5655193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 5656193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 5657193267Sjkimchanged by modifying the acconfig.h file. 5658129684Snjl 5659193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 5660193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 5661129684Snjl 5662193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 5663193267Sjkimspecification, but there is apparently ASL code in the field that has these 5664193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 5665129684Snjl 5666193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 5667129684Snjl 5668193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 5669129684Snjl 5670193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5671193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5672193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5673193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5674193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5675193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5676193267Sjkimthe compiler options used during generation. 5677129684Snjl 5678129684Snjl Previous Release: 5679129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5680129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5681129684Snjl Current Release: 5682129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5683129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5684129684Snjl 5685129684Snjl---------------------------------------- 5686129684Snjl27 April 2004. Summary of changes for version 20040427: 5687129684Snjl 5688129684Snjl1) ACPI CA Core Subsystem: 5689129684Snjl 5690193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 5691193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 5692193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 5693193267Sjkimdevices such as a control-method power button, control-method sleep button, 5694193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 5695193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 5696193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 5697193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 5698193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 5699193267Sjkimactually be hardware enabled. 5700129684Snjl 5701193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 5702193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 5703193267Sjkimespecially useful for the drivers for the button devices mentioned above. 5704129684Snjl 5705193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 5706193267Sjkimdefault operation region handlers are installed before GPEs are initialized 5707193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 5708193267Sjkimmethods attempt to access system memory or I/O space. 5709129684Snjl 5710193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 5711193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 5712193267Sjkimthus no longer depend on the hardware to maintain these bits. 5713129684Snjl 5714193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 5715193267Sjkimfor state S5. 5716129684Snjl 5717193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 5718193267Sjkimcurrent status. 5719129684Snjl 5720193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 5721193267Sjkimx = 0,1,2,3,4. 5722129684Snjl 5723193267SjkimFixed a problem where the physical address was incorrectly calculated when 5724193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 5725193267Sjkimloading from a Field object.) Also added check for minimum table length for 5726193267Sjkimthis case. 5727129684Snjl 5728193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 5729193267Sjkimmutex release. 5730129684Snjl 5731193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 5732129684Snjlconsistency with the other fields returned. 5733129684Snjl 5734193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 5735193267Sjkimstructure for each GPE in the system, so the size of this structure is 5736193267Sjkimimportant. 5737129684Snjl 5738193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 5739193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 5740193267Sjkimcopying the various method parameters over and over again. 5741129684Snjl 5742193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 5743193267Sjkimonly if dispatching an operation region request to a user-installed handler. 5744193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 5745193267Sjkimsystem memory or I/O handlers) 5746129684Snjl 5747129684Snjl 5748193267SjkimNotes for updating drivers for the new GPE support. The following changes 5749193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 5750193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 5751129684Snjl 5752193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 5753193267Sjkimexplicitly call AcpiEnableGpe. 5754193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 5755193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 5756193267Sjkimthe GPE if it is currently enabled. 5757129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 5758129684Snjl 5759129684SnjlSpecific drivers that must be changed: 5760129684Snjl1) EC driver: 5761193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 5762129684SnjlAeGpeHandler, NULL); 5763129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 5764129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 5765129684Snjl 5766129684Snjl2) Button Drivers (Power, Lid, Sleep): 5767129684SnjlRun _PRW method under parent device 5768129684SnjlIf _PRW exists: /* This is a control-method button */ 5769129684Snjl Extract GPE number and possibly GpeDevice 5770129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 5771129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 5772129684Snjl 5773193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 5774193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 5775193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 5776193267Sjkimto allow the user to pick the wake devices. 5777129684Snjl 5778129684Snjl 5779193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5780193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5781193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5782193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5783193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5784193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5785193267Sjkimthe compiler options used during generation. 5786129684Snjl 5787129684Snjl Previous Release: 5788129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5789129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5790129684Snjl Current Release: 5791167802Sjkim 5792129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5793129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5794129684Snjl 5795129684Snjl 5796129684Snjl 5797129684Snjl---------------------------------------- 5798128212Snjl02 April 2004. Summary of changes for version 20040402: 5799128212Snjl 5800128212Snjl1) ACPI CA Core Subsystem: 5801128212Snjl 5802193267SjkimFixed an interpreter problem where an indirect store through an ArgX 5803193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 5804193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 5805193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 5806193267Sjkimstored directly to the target". The new behavior is to disable implicit 5807193267Sjkimconversion during ALL stores to an ArgX. 5808128212Snjl 5809193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 5810193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 5811193267Sjkimfailure of any single _PRW. 5812128212Snjl 5813193267SjkimMoved the runtime configuration parameters from the global init procedure to 5814193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 5815193267Sjkimdefault values easily. 5816128212Snjl 5817193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5818193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5819193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5820193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5821193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5822193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5823193267Sjkimthe compiler options used during generation. 5824128212Snjl 5825128212Snjl Previous Release: 5826128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5827128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5828128212Snjl Current Release: 5829128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5830128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5831128212Snjl 5832128212Snjl 5833128212Snjl2) iASL Compiler/Disassembler: 5834128212Snjl 5835193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 5836193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 5837193267Sjkimplanned feature for future implementation. 5838128212Snjl 5839193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 5840193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 5841193267Sjkimincorrectly nested internal namespace to be constructed. 5842128212Snjl 5843193267SjkimAny warnings or errors that are emitted during disassembly are now commented 5844193267Sjkimout automatically so that the resulting file can be recompiled without any 5845193267Sjkimhand editing. 5846128212Snjl 5847128212Snjl---------------------------------------- 5848128212Snjl26 March 2004. Summary of changes for version 20040326: 5849128212Snjl 5850128212Snjl1) ACPI CA Core Subsystem: 5851128212Snjl 5852193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 5853193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 5854193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 5855193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 5856193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 5857193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 5858128212Snjlsystems. 5859128212Snjl 5860193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 5861193267SjkimALL GPEs at runtime) via a runtime flag. 5862128212Snjl 5863193267SjkimFixed a problem where aliased control methods could not access objects 5864193267Sjkimproperly. The proper scope within the namespace was not initialized 5865193267Sjkim(transferred to the target of the aliased method) before executing the 5866193267Sjkimtarget method. 5867128212Snjl 5868193267SjkimFixed a potential race condition on internal object deletion on the return 5869193267Sjkimobject in AcpiEvaluateObject. 5870128212Snjl 5871193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 5872193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 5873193267Sjkimwide, 0x0F instead of 0x03.) 5874128212Snjl 5875193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 5876193267Sjkimfault in some cases. 5877128212Snjl 5878128212SnjlUpdated Notify() values for debug statements in evmisc.c 5879128212Snjl 5880193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 5881128212Snjl 5882193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5883193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5884193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5885193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5886193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5887193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5888193267Sjkimthe compiler options used during generation. 5889128212Snjl 5890128212Snjl Previous Release: 5891167802Sjkim 5892128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5893128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5894128212Snjl Current Release: 5895128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5896128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5897128212Snjl 5898128212Snjl---------------------------------------- 5899127175Snjl11 March 2004. Summary of changes for version 20040311: 5900127175Snjl 5901127175Snjl1) ACPI CA Core Subsystem: 5902127175Snjl 5903193267SjkimFixed a problem where errors occurring during the parse phase of control 5904193267Sjkimmethod execution did not abort cleanly. For example, objects created and 5905193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 5906193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 5907127175Snjl 5908193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 5909193267Sjkimif the method attempts to create namespace objects. (The root of the 5910193267SjkimAE_ALREADY_EXISTS problem.) 5911127175Snjl 5912193267SjkimImplemented support for the predefined _OSI "internal" control method. 5913193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 5914193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 5915193267SjkimThis feature will allow "other" operating systems to execute the fully 5916193267Sjkimtested, "Windows" code path through the ASL code 5917127175Snjl 5918193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 5919193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 5920127175Snjl 5921193267SjkimFixed two functions that were inappropriately declaring large objects on the 5922193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 5923193267Sjkimmethod execution considerably. 5924127175Snjl 5925193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 5926193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 5927127175Snjl 5928193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 5929193267Sjkimdefined on the machine. 5930127175Snjl 5931193267SjkimImplemented two runtime options: One to force all control method execution 5932193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 5933193267Sjkimif it causes problems on a given machine. 5934127175Snjl 5935193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5936193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5937193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5938193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5939193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5940193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5941193267Sjkimthe compiler options used during generation. 5942127175Snjl 5943127175Snjl Previous Release: 5944127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 5945127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 5946127175Snjl Current Release: 5947127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5948127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5949127175Snjl 5950127175Snjl2) iASL Compiler/Disassembler: 5951127175Snjl 5952193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 5953193267Sjkimfault. 5954127175Snjl 5955127175Snjl---------------------------------------- 5956126372Snjl20 February 2004. Summary of changes for version 20040220: 5957126372Snjl 5958167802Sjkim 5959126372Snjl1) ACPI CA Core Subsystem: 5960126372Snjl 5961193267SjkimImplemented execution of _SxD methods for Device objects in the 5962126372SnjlGetObjectInfo interface. 5963126372Snjl 5964126372SnjlFixed calls to _SST method to pass the correct arguments. 5965126372Snjl 5966126372SnjlAdded a call to _SST on wake to restore to "working" state. 5967126372Snjl 5968193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 5969126372Snjl 5970193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 5971193267Sjkimstructures to the beginning of the file. 5972126372Snjl 5973126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 5974126372Snjl 5975193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 5976193267Sjkimfixed events upon wake.) 5977126372Snjl 5978126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 5979126372Snjl 5980126372SnjlIntegrated latest acnetbsd.h file. 5981126372Snjl 5982126372Snjl---------------------------------------- 5983126372Snjl11 February 2004. Summary of changes for version 20040211: 5984126372Snjl 5985167802Sjkim 5986126372Snjl1) ACPI CA Core Subsystem: 5987126372Snjl 5988193267SjkimCompleted investigation and implementation of the call-by-reference 5989193267Sjkimmechanism for control method arguments. 5990126372Snjl 5991193267SjkimFixed a problem where a store of an object into an indexed package could 5992193267Sjkimfail if the store occurs within a different method than the method that 5993193267Sjkimcreated the package. 5994126372Snjl 5995193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 5996126372Snjl 5997193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 5998193267Sjkimobscure objects (e.g., Reference objects.) 5999126372Snjl 6000193267SjkimImproved the output of the Debug object to display buffer, package, and 6001193267Sjkimindex objects. 6002126372Snjl 6003193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 6004193267Sjkimthe expected result. 6005126372Snjl 6006193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 6007126372SnjlACPI_AML_INTERNAL exception. 6008126372Snjl 6009126372SnjlIntegrated latest version of acfreebsd.h 6010126372Snjl 6011126372Snjl---------------------------------------- 6012126372Snjl16 January 2004. Summary of changes for version 20040116: 6013126372Snjl 6014193267SjkimThe purpose of this release is primarily to update the copyright years in 6015193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 6016193267Sjkimfunctional changes, however. 6017126372Snjl 6018126372Snjl1) ACPI CA Core Subsystem: 6019126372Snjl 6020193267SjkimImproved error messages when there is a problem finding one or more of the 6021193267Sjkimrequired base ACPI tables 6022126372Snjl 6023126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 6024126372Snjl 6025126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 6026126372Snjl 6027126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 6028126372Snjl 6029126372Snjl2) iASL compiler 6030126372Snjl 6031193267SjkimFixed a problem introduced in December that disabled the correct disassembly 6032193267Sjkimof Resource Templates 6033126372Snjl 6034126372Snjl 6035126372Snjl---------------------------------------- 6036126372Snjl03 December 2003. Summary of changes for version 20031203: 6037126372Snjl 6038126372Snjl1) ACPI CA Core Subsystem: 6039126372Snjl 6040126372SnjlChanged the initialization of Operation Regions during subsystem 6041126372Snjlinit to perform two entire walks of the ACPI namespace; The first 6042126372Snjlto initialize the regions themselves, the second to execute the 6043126372Snjl_REG methods. This fixed some interdependencies across _REG 6044126372Snjlmethods found on some machines. 6045126372Snjl 6046126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 6047126372Snjlthe object reference count, and not create a new copy of the 6048126372Snjlobject if the Local1 is uninitialized. 6049126372Snjl 6050126372SnjlImplemented support for the _SST reserved method during sleep 6051126372Snjltransitions. 6052126372Snjl 6053126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 6054126372Snjlwaking up, this is apparently required by some machines. 6055126372Snjl 6056193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 6057126372Snjl 6058126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 6059126372Snjlpointer arithmetic advanced a string pointer too far. 6060126372Snjl 6061126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 6062126372Snjlcould be returned if the requested table has not been loaded. 6063126372Snjl 6064193267SjkimWithin the support for IRQ resources, restructured the handling of 6065126372Snjlthe active and edge/level bits. 6066126372Snjl 6067126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 6068126372Snjlleaked under certain error conditions. 6069126372Snjl 6070126372SnjlImproved error messages for the cases where the ACPI mode could 6071126372Snjlnot be entered. 6072126372Snjl 6073126372SnjlCode and Data Size: Current and previous core subsystem library 6074126372Snjlsizes are shown below. These are the code and data sizes for the 6075126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6076126372Snjlthese values do not include any ACPI driver or OSPM code. The 6077126372Snjldebug version of the code includes the debug output trace 6078126372Snjlmechanism and has a much larger code and data size. Note that 6079193267Sjkimthese values will vary depending on the efficiency of the compiler 6080126372Snjland the compiler options used during generation. 6081126372Snjl 6082126372Snjl Previous Release (20031029): 6083126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6084126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6085126372Snjl Current Release: 6086126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6087126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6088126372Snjl 6089126372Snjl2) iASL Compiler/Disassembler: 6090126372Snjl 6091126372SnjlImplemented a fix for the iASL disassembler where a bad index was 6092126372Snjlgenerated. This was most noticeable on 64-bit platforms 6093126372Snjl 6094126372Snjl 6095126372Snjl---------------------------------------- 6096126372Snjl29 October 2003. Summary of changes for version 20031029: 6097126372Snjl 6098126372Snjl1) ACPI CA Core Subsystem: 6099126372Snjl 6100167802Sjkim 6101126372SnjlFixed a problem where a level-triggered GPE with an associated 6102126372Snjl_Lxx control method was incorrectly cleared twice. 6103126372Snjl 6104126372SnjlFixed a problem with the Field support code where an access can 6105126372Snjloccur beyond the end-of-region if the field is non-aligned but 6106126372Snjlextends to the very end of the parent region (resulted in an 6107126372SnjlAE_AML_REGION_LIMIT exception.) 6108126372Snjl 6109126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 6110193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 6111126372Snjlthe PM1 registers were not being initialized properly. 6112126372Snjl 6113126372SnjlImplemented support for executing _STA and _INI methods for 6114126372SnjlProcessor objects. Although this is currently not part of the 6115193267SjkimACPI specification, there is existing ASL code that depends on the 6116126372Snjlinit-time execution of these methods. 6117126372Snjl 6118126372SnjlImplemented and deployed a GetDescriptorName function to decode 6119126372Snjlthe various types of internal descriptors. Guards against null 6120126372Snjldescriptors during debug output also. 6121126372Snjl 6122126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 6123193267Sjkimcharacter namespace node name. This function simplifies the debug 6124193267Sjkimand error output, as well as guarding against null pointers during 6125126372Snjloutput. 6126126372Snjl 6127126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 6128126372Snjlsimplify the debug and error output of 64-bit integers. This 6129126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 6130126372Snjlintegers. 6131126372Snjl 6132126372SnjlUpdated the implementation of the Stall() operator to only call 6133126372SnjlAcpiOsStall(), and also return an error if the operand is larger 6134126372Snjlthan 255. This preserves the required behavior of not 6135126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 6136126372Snjlcalled for "long stalls". 6137126372Snjl 6138126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 6139126372Snjlinitialized are now treated as NOOPs. 6140126372Snjl 6141126372SnjlCleaned up a handful of warnings during 64-bit generation. 6142126372Snjl 6143126372SnjlFixed a reported error where and incorrect GPE number was passed 6144126372Snjlto the GPE dispatch handler. This value is only used for error 6145193267Sjkimoutput, however. Used this opportunity to clean up and streamline 6146126372Snjlthe GPE dispatch code. 6147126372Snjl 6148126372SnjlCode and Data Size: Current and previous core subsystem library 6149126372Snjlsizes are shown below. These are the code and data sizes for the 6150126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6151126372Snjlthese values do not include any ACPI driver or OSPM code. The 6152167802Sjkim 6153126372Snjldebug version of the code includes the debug output trace 6154126372Snjlmechanism and has a much larger code and data size. Note that 6155193267Sjkimthese values will vary depending on the efficiency of the compiler 6156126372Snjland the compiler options used during generation. 6157126372Snjl 6158126372Snjl Previous Release (20031002): 6159126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6160126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6161126372Snjl Current Release: 6162126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6163126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6164126372Snjl 6165126372Snjl 6166126372Snjl2) iASL Compiler/Disassembler: 6167126372Snjl 6168193267SjkimUpdated the iASL compiler to return an error if the operand to the 6169126372SnjlStall() operator is larger than 255. 6170126372Snjl 6171126372Snjl 6172126372Snjl---------------------------------------- 6173126372Snjl02 October 2003. Summary of changes for version 20031002: 6174126372Snjl 6175126372Snjl 6176126372Snjl1) ACPI CA Core Subsystem: 6177126372Snjl 6178126372SnjlFixed a problem with Index Fields where the index was not 6179126372Snjlincremented for fields that require multiple writes to the 6180126372Snjlindex/data registers (Fields that are wider than the data 6181126372Snjlregister.) 6182126372Snjl 6183126372SnjlFixed a problem with all Field objects where a write could go 6184126372Snjlbeyond the end-of-field if the field was larger than the access 6185193267Sjkimgranularity and therefore required multiple writes to complete the 6186126372Snjlrequest. An extra write beyond the end of the field could happen 6187126372Snjlinadvertently. 6188126372Snjl 6189126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 6190126372Snjlwould incorrectly be returned if the width of the Data Register 6191126372Snjlwas larger than the specified field access width. 6192126372Snjl 6193126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 6194126372Snjloperation. Implemented full support for the "DdbHandle" object 6195126372Snjlthroughout the ACPI CA subsystem. 6196126372Snjl 6197126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 6198126372SnjlCA header files. Even though these tables are not directly 6199126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 6200126372Snjldevice drivers. 6201126372Snjl 6202126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 6203126372Snjllist. This included checks for minimum descriptor length, and 6204126372Snjlsupport for trailing NULL strings within descriptors that have 6205126372Snjloptional string elements. 6206126372Snjl 6207126372SnjlCode and Data Size: Current and previous core subsystem library 6208126372Snjlsizes are shown below. These are the code and data sizes for the 6209126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6210126372Snjlthese values do not include any ACPI driver or OSPM code. The 6211126372Snjldebug version of the code includes the debug output trace 6212126372Snjlmechanism and has a much larger code and data size. Note that 6213193267Sjkimthese values will vary depending on the efficiency of the compiler 6214126372Snjland the compiler options used during generation. 6215126372Snjl 6216126372Snjl Previous Release (20030918): 6217126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6218126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6219126372Snjl Current Release: 6220126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6221126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6222126372Snjl 6223126372Snjl 6224126372Snjl2) iASL Compiler: 6225126372Snjl 6226126372SnjlImplemented detection of non-ASCII characters within the input 6227126372Snjlsource ASL file. This catches attempts to compile binary (AML) 6228126372Snjlfiles early in the compile, with an informative error message. 6229126372Snjl 6230126372SnjlFixed a problem where the disassembler would fault if the output 6231193267Sjkimfilename could not be generated or if the output file could not be 6232126372Snjlopened. 6233126372Snjl 6234126372Snjl---------------------------------------- 6235126372Snjl18 September 2003. Summary of changes for version 20030918: 6236126372Snjl 6237126372Snjl 6238126372Snjl1) ACPI CA Core Subsystem: 6239126372Snjl 6240126372SnjlFound and fixed a longstanding problem with the late execution of 6241126372Snjlthe various deferred AML opcodes (such as Operation Regions, 6242126372SnjlBuffer Fields, Buffers, and Packages). If the name string 6243126372Snjlspecified for the name of the new object placed the object in a 6244126372Snjlscope other than the current scope, the initialization/execution 6245126372Snjlof the opcode failed. The solution to this problem was to 6246126372Snjlimplement a mechanism where the late execution of such opcodes 6247126372Snjldoes not attempt to lookup/create the name a second time in an 6248126372Snjlincorrect scope. This fixes the "region size computed 6249126372Snjlincorrectly" problem. 6250126372Snjl 6251193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 6252126372SnjlGlobal Lock AE_BAD_PARAMETER error. 6253126372Snjl 6254126372SnjlFixed several 64-bit issues with prototypes, casting and data 6255126372Snjltypes. 6256126372Snjl 6257126372SnjlRemoved duplicate prototype from acdisasm.h 6258126372Snjl 6259126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 6260126372Snjl 6261126372SnjlCode and Data Size: Current and previous core subsystem library 6262126372Snjlsizes are shown below. These are the code and data sizes for the 6263126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6264126372Snjlthese values do not include any ACPI driver or OSPM code. The 6265126372Snjldebug version of the code includes the debug output trace 6266126372Snjlmechanism and has a much larger code and data size. Note that 6267193267Sjkimthese values will vary depending on the efficiency of the compiler 6268126372Snjland the compiler options used during generation. 6269126372Snjl 6270126372Snjl Previous Release: 6271167802Sjkim 6272126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6273126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6274126372Snjl Current Release: 6275126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6276126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6277126372Snjl 6278126372Snjl 6279126372Snjl2) Linux: 6280126372Snjl 6281126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 6282126372Snjlcorrect sleep time in seconds. 6283126372Snjl 6284126372Snjl---------------------------------------- 6285126372Snjl14 July 2003. Summary of changes for version 20030619: 6286126372Snjl 6287126372Snjl1) ACPI CA Core Subsystem: 6288126372Snjl 6289126372SnjlParse SSDTs in order discovered, as opposed to reverse order 6290126372Snjl(Hrvoje Habjanic) 6291126372Snjl 6292126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 6293126372SnjlKlausner, 6294126372Snjl Nate Lawson) 6295126372Snjl 6296126372Snjl 6297126372Snjl2) Linux: 6298126372Snjl 6299126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 6300126372Snjl 6301126372Snjlproc function return value cleanups (Andi Kleen) 6302126372Snjl 6303126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 6304126372Snjl 6305126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 6306126372Snjl 6307126372Snjl 6308126372Snjl---------------------------------------- 6309117521Snjl19 June 2003. Summary of changes for version 20030619: 6310117521Snjl 6311117521Snjl1) ACPI CA Core Subsystem: 6312117521Snjl 6313193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 6314117521Snjl 6315117521SnjlDo not acquire a semaphore in the S5 shutdown path. 6316117521Snjl 6317117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 6318117521Snjl 6319117521SnjlFix sleep/stall code reversal. (Andi Kleen) 6320117521Snjl 6321117521SnjlRevert a change having to do with control method calling 6322117521Snjlsemantics. 6323117521Snjl 6324117521Snjl2) Linux: 6325117521Snjl 6326117521Snjlacpiphp update (Takayoshi Kochi) 6327117521Snjl 6328117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 6329117521Snjl 6330117521SnjlMention acpismp=force in config help 6331117521Snjl 6332117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 6333167802Sjkim 6334193267Sjkimcompatibility and also cleans up the code to a significant degree. 6335117521Snjl 6336117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 6337117521Snjl 6338117521Snjl---------------------------------------- 6339117521Snjl22 May 2003. Summary of changes for version 20030522: 6340117521Snjl 6341117521Snjl1) ACPI CA Core Subsystem: 6342117521Snjl 6343117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 6344117521Snjloccurred occasionally during _BST evaluation. This turned out to 6345117521Snjlbe an Owner ID allocation issue where a called method did not get 6346193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 6347193267SjkimID UINT16 would wraparound so that the ID would be the same as the 6348126372Snjlcaller's and the called method would delete the caller's 6349117521Snjlnamespace. 6350117521Snjl 6351117521SnjlImplemented extended error reporting for control methods that are 6352117521Snjlaborted due to a run-time exception. Output includes the exact 6353193267SjkimAML instruction that caused the method abort, a dump of the method 6354126372Snjllocals and arguments at the time of the abort, and a trace of all 6355126372Snjlnested control method calls. 6356117521Snjl 6357117521SnjlModified the interpreter to allow the creation of buffers of zero 6358117521Snjllength from the AML code. Implemented new code to ensure that no 6359117521Snjlattempt is made to actually allocate a memory buffer (of length 6360193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 6361126372Snjland length zero is created. A warning is no longer issued when 6362126372Snjlthe AML attempts to create a zero-length buffer. 6363117521Snjl 6364117521SnjlImplemented a workaround for the "leading asterisk issue" in 6365117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 6366117521Snjlasterisk is automatically removed if present in any HID, UID, or 6367117521SnjlCID strings. The iASL compiler will still flag this asterisk as 6368117521Snjlan error, however. 6369117521Snjl 6370193267SjkimImplemented full support for _CID methods that return a package of 6371193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 6372126372Snjlnow additionally returns a device _CID list if present. This 6373126372Snjlrequired a change to the external interface in order to pass an 6374126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 6375117521Snjlvariable length. 6376117521Snjl 6377117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 6378117521Snjlhandler initialization code did not know about this exception. 6379117521Snjl 6380117521SnjlCode and Data Size: Current and previous core subsystem library 6381117521Snjlsizes are shown below. These are the code and data sizes for the 6382117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6383117521Snjlthese values do not include any ACPI driver or OSPM code. The 6384117521Snjldebug version of the code includes the debug output trace 6385117521Snjlmechanism and has a much larger code and data size. Note that 6386193267Sjkimthese values will vary depending on the efficiency of the compiler 6387126372Snjland the compiler options used during generation. 6388117521Snjl 6389117521Snjl Previous Release (20030509): 6390117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6391117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6392117521Snjl Current Release: 6393117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6394117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6395117521Snjl 6396117521Snjl 6397117521Snjl2) Linux: 6398117521Snjl 6399117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 6400193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 6401126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 6402117521SnjlJordet) 6403117521Snjl 6404117521SnjlToshiba driver update (John Belmonte) 6405117521Snjl 6406117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 6407117521SnjlMorton) 6408117521Snjl 6409117521Snjl 6410117521Snjl3) iASL Compiler: 6411117521Snjl 6412117521SnjlFixed a reported problem where multiple (nested) ElseIf() 6413117521Snjlstatements were not handled correctly by the compiler, resulting 6414117521Snjlin incorrect warnings and incorrect AML code. This was a problem 6415117521Snjlin both the ASL parser and the code generator. 6416117521Snjl 6417117521Snjl 6418117521Snjl4) Documentation: 6419117521Snjl 6420193267SjkimAdded changes to existing interfaces, new exception codes, and new 6421126372Snjltext concerning reference count object management versus garbage 6422126372Snjlcollection. 6423117521Snjl 6424117521Snjl---------------------------------------- 6425117521Snjl09 May 2003. Summary of changes for version 20030509. 6426117521Snjl 6427117521Snjl 6428117521Snjl1) ACPI CA Core Subsystem: 6429117521Snjl 6430117521SnjlChanged the subsystem initialization sequence to hold off 6431193267Sjkiminstallation of address space handlers until the hardware has been 6432193267Sjkiminitialized and the system has entered ACPI mode. This is because 6433126372Snjlthe installation of space handlers can cause _REG methods to be 6434193267Sjkimrun. Previously, the _REG methods could potentially be run before 6435126372SnjlACPI mode was enabled. 6436117521Snjl 6437193267SjkimFixed some memory leak issues related to address space handler and 6438126372Snjlnotify handler installation. There were some problems with the 6439126372Snjlreference count mechanism caused by the fact that the handler 6440117521Snjlobjects are shared across several namespace objects. 6441117521Snjl 6442117521SnjlFixed a reported problem where reference counts within the 6443117521Snjlnamespace were not properly updated when named objects created by 6444117521Snjlmethod execution were deleted. 6445117521Snjl 6446117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 6447117521Snjlissue during subsystem termination. Restructured the table data 6448117521Snjlstructures to simplify the linked lists and the related code. 6449117521Snjl 6450117521SnjlFixed a problem where the table ID associated with secondary 6451193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 6452126372Snjlcreated by those tables. This would only present a problem for 6453126372Snjltables that are unloaded at run-time, however. 6454117521Snjl 6455117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 6456117521Snjltype as the length parameter (instead of UINT32). 6457117521Snjl 6458117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 6459117521Snjlappears on various systems. This problem could happen when there 6460117521Snjlare multiple PCI_Config operation regions under a single PCI root 6461117521Snjlbus. This doesn't happen very frequently, but there are some 6462117521Snjlsystems that do this in the ASL. 6463117521Snjl 6464117521SnjlFixed a reported problem where the internal DeleteNode function 6465117521Snjlwas incorrectly handling the case where a namespace node was the 6466117521Snjlfirst in the parent's child list, and had additional peers (not 6467117521Snjlthe only child, but first in the list of children.) 6468117521Snjl 6469193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6470126372Snjlbelow. These are the code and data sizes for the acpica.lib 6471126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6472126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6473126372Snjlversion of the code includes the debug output trace mechanism and 6474193267Sjkimhas a much larger code and data size. Note that these values will 6475126372Snjlvary depending on the efficiency of the compiler and the compiler 6476126372Snjloptions used during generation. 6477117521Snjl 6478117521Snjl Previous Release 6479117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6480117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6481117521Snjl Current Release: 6482117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6483117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6484117521Snjl 6485117521Snjl 6486117521Snjl2) Linux: 6487117521Snjl 6488117521SnjlAllow ":" in OS override string (Ducrot Bruno) 6489117521Snjl 6490117521SnjlKobject fix (Greg KH) 6491117521Snjl 6492117521Snjl 6493117521Snjl3 iASL Compiler/Disassembler: 6494117521Snjl 6495117521SnjlFixed a problem in the generation of the C source code files (AML 6496117521Snjlis emitted in C source statements for BIOS inclusion) where the 6497193267SjkimAscii dump that appears within a C comment at the end of each line 6498126372Snjlcould cause a compile time error if the AML sequence happens to 6499126372Snjlhave an open comment or close comment sequence embedded. 6500117521Snjl 6501117521Snjl 6502117521Snjl---------------------------------------- 6503117521Snjl24 April 2003. Summary of changes for version 20030424. 6504117521Snjl 6505117521Snjl 6506117521Snjl1) ACPI CA Core Subsystem: 6507117521Snjl 6508117521SnjlSupport for big-endian systems has been implemented. Most of the 6509193267Sjkimsupport has been invisibly added behind big-endian versions of the 6510126372SnjlACPI_MOVE_* macros. 6511117521Snjl 6512117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 6513117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 6514117521Snjllow level hardware write routine. The offset parameter was 6515193267Sjkimactually eliminated from the low level read/write routines because 6516126372Snjlthey had become obsolete. 6517117521Snjl 6518117521SnjlFixed a problem where a handler object was deleted twice during 6519117521Snjlthe removal of a fixed event handler. 6520117521Snjl 6521117521Snjl 6522117521Snjl2) Linux: 6523117521Snjl 6524117521SnjlA fix for SMP systems with link devices was contributed by 6525167802Sjkim 6526117521SnjlCompaq's Dan Zink. 6527117521Snjl 6528117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 6529193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 6530126372Snjlreturn value from the ACPI CA core back to the OS.) 6531117521Snjl 6532117521Snjl 6533167802Sjkim 6534117521Snjl3) Documentation: 6535117521Snjl 6536117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 6537117521Snjlinterfaces and changes to existing interfaces. 6538117521Snjl 6539117521Snjl---------------------------------------- 6540117521Snjl28 March 2003. Summary of changes for version 20030328. 6541117521Snjl 6542117521Snjl1) ACPI CA Core Subsystem: 6543117521Snjl 6544117521SnjlThe GPE Block Device support has been completed. New interfaces 6545117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 6546117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 6547117521Snjlinto separate interfaces for Fixed Events and General Purpose 6548117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 6549117521Snjl 6550117521SnjlFixed a problem where the error message "Failed to acquire 6551117521Snjlsemaphore" would appear during operations on the embedded 6552117521Snjlcontroller (EC). 6553117521Snjl 6554193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6555126372Snjlbelow. These are the code and data sizes for the acpica.lib 6556126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6557126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6558126372Snjlversion of the code includes the debug output trace mechanism and 6559193267Sjkimhas a much larger code and data size. Note that these values will 6560126372Snjlvary depending on the efficiency of the compiler and the compiler 6561126372Snjloptions used during generation. 6562117521Snjl 6563117521Snjl Previous Release 6564117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6565117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6566117521Snjl Current Release: 6567117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6568117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6569117521Snjl 6570117521Snjl 6571117521Snjl---------------------------------------- 6572114237Snjl28 February 2003. Summary of changes for version 20030228. 6573114237Snjl 6574114237Snjl 6575114237Snjl1) ACPI CA Core Subsystem: 6576114237Snjl 6577114237SnjlThe GPE handling and dispatch code has been completely overhauled 6578114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 6579114237SnjlThis affects internal data structures and code only; there should 6580114237Snjlbe no differences visible externally. One new file has been 6581114237Snjladded, evgpeblk.c 6582114237Snjl 6583114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 6584114237Snjlfields that are used to determine the GPE block lengths. The 6585114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 6586193267Sjkimstructures are ignored. This is per the ACPI specification but it 6587126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 6588193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 6589114237Snjl 6590114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 6591114237Snjlregister to look at the SCI_EN bit. On some machines, this read 6592114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 6593114237Snjlin fact be the cause of slow battery status response on some 6594114237Snjlsystems.) 6595114237Snjl 6596193267SjkimFixed a problem where a store of a NULL string to a package object 6597126372Snjlcould cause the premature deletion of the object. This was seen 6598126372Snjlduring execution of the battery _BIF method on some systems, 6599126372Snjlresulting in no battery data being returned. 6600114237Snjl 6601114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 6602114237Snjllists. 6603114237Snjl 6604193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6605126372Snjlbelow. These are the code and data sizes for the acpica.lib 6606126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6607126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6608126372Snjlversion of the code includes the debug output trace mechanism and 6609193267Sjkimhas a much larger code and data size. Note that these values will 6610126372Snjlvary depending on the efficiency of the compiler and the compiler 6611126372Snjloptions used during generation. 6612114237Snjl 6613114237Snjl Previous Release 6614114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6615114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6616114237Snjl Current Release: 6617114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6618114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6619114237Snjl 6620114237Snjl 6621114237Snjl2) Linux 6622114237Snjl 6623114237SnjlS3 fixes (Ole Rohne) 6624114237Snjl 6625114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 6626114237Snjl(Bjorn Helgaas) 6627114237Snjl 6628114237SnjlAdd S4BIOS support (Pavel Machek) 6629114237Snjl 6630114237SnjlMap in entire table before performing checksum (John Stultz) 6631114237Snjl 6632193267SjkimExpand the mem= cmdline to allow the specification of reserved and 6633126372SnjlACPI DATA blocks (Pavel Machek) 6634114237Snjl 6635114237SnjlNever use ACPI on VISWS 6636114237Snjl 6637114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 6638114237Snjl 6639114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 6640114237Snjlcausing us to think that some systems support C2 when they really 6641114237Snjldon't. 6642114237Snjl 6643114237SnjlDo not count processor objects for non-present CPUs (Thanks to 6644114237SnjlDominik Brodowski) 6645114237Snjl 6646114237Snjl 6647114237Snjl3) iASL Compiler: 6648114237Snjl 6649114237SnjlFixed a problem where ASL include files could not be found and 6650114237Snjlopened. 6651114237Snjl 6652114237SnjlAdded support for the _PDC reserved name. 6653114237Snjl 6654114237Snjl 6655117521Snjl---------------------------------------- 6656114237Snjl22 January 2003. Summary of changes for version 20030122. 6657114237Snjl 6658114237Snjl 6659114237Snjl1) ACPI CA Core Subsystem: 6660114237Snjl 6661114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 6662114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 6663193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 6664126372Snjldo anything anyway, the new prototype behavior will ignore this 6665126372Snjlerror. This is a case where we can relax the strict checking in 6666126372Snjlthe interpreter in the name of compatibility. 6667114237Snjl 6668114237Snjl 6669114237Snjl2) Linux 6670114237Snjl 6671114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 6672114237SnjlLinux package for the first time. This is the utility that is 6673193267Sjkimused to convert the ACPI CA base source code to the Linux version. 6674114237Snjl 6675114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 6676114237Snjl 6677114237Snjl(Both) Move more headers to include/acpi, and delete an unused 6678114237Snjlheader. 6679114237Snjl 6680114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 6681114237Snjl 6682114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 6683114237Snjl 6684114237Snjl(Both) Remove include of unused header (Adrian Bunk) 6685114237Snjl 6686114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 6687114237Snjlthe 6688193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 6689126372Snjlnow. 6690114237Snjl 6691193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 6692114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 6693114237Snjl 6694114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 6695114237Snjl 6696114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 6697114237Snjl 6698114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 6699114237Snjl(Dominik Brodowski) 6700114237Snjl 6701114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 6702114237Snjl 6703114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 6704114237SnjlVisinoni) 6705114237Snjl 6706114237Snjl 6707114237Snjl3) iASL Compiler: 6708114237Snjl 6709114237SnjlAdded support to disassemble SSDT and PSDTs. 6710114237Snjl 6711114237SnjlImplemented support to obtain SSDTs from the Windows registry if 6712114237Snjlavailable. 6713114237Snjl 6714114237Snjl 6715102550Siwasaki---------------------------------------- 6716114237Snjl09 January 2003. Summary of changes for version 20030109. 6717114237Snjl 6718114237Snjl1) ACPI CA Core Subsystem: 6719114237Snjl 6720114237SnjlChanged the behavior of the internal Buffer-to-String conversion 6721193267Sjkimfunction. The current ACPI specification states that the contents 6722126372Snjlof the buffer are "converted to a string of two-character 6723126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 6724193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 6725193267Sjkimimplementations (although the behavior was not defined in the ACPI 6726126372Snjl1.0 specification). The new behavior simply copies data from the 6727193267Sjkimbuffer to the string until a null character is found or the end of 6728126372Snjlthe buffer is reached. The new String object is always null 6729126372Snjlterminated. This problem was seen during the generation of _BIF 6730126372Snjlbattery data where incorrect strings were returned for battery 6731126372Snjltype, etc. This will also require an errata to the ACPI 6732126372Snjlspecification. 6733114237Snjl 6734114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 6735114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 6736114237Snjl 6737114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 6738114237Snjlupdated to 2003. 6739114237Snjl 6740193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6741126372Snjlbelow. These are the code and data sizes for the acpica.lib 6742126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6743126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6744126372Snjlversion of the code includes the debug output trace mechanism and 6745193267Sjkimhas a much larger code and data size. Note that these values will 6746126372Snjlvary depending on the efficiency of the compiler and the compiler 6747126372Snjloptions used during generation. 6748114237Snjl 6749114237Snjl Previous Release 6750114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6751114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6752114237Snjl Current Release: 6753114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6754114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6755114237Snjl 6756114237Snjl 6757114237Snjl2) Linux 6758114237Snjl 6759114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 6760114237Snjl 6761114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 6762114237Snjl 6763114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 6764114237Snjl 6765114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 6766114237Snjl 6767114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 6768114237Snjlof schedule_work() 6769114237Snjl 6770114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 6771114237Snjl 6772114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 6773114237Snjl 6774114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 6775114237Snjl 6776114237SnjlSeveral changes have been made to the source code translation 6777114237Snjlutility that generates the Linux Code in order to make the code 6778114237Snjlmore "Linux-like": 6779114237Snjl 6780114237SnjlAll typedefs on structs and unions have been removed in keeping 6781114237Snjlwith the Linux coding style. 6782114237Snjl 6783114237SnjlRemoved the non-Linux SourceSafe module revision number from each 6784114237Snjlmodule header. 6785114237Snjl 6786114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 6787114237SnjlDoubled the number of symbols that are lowercased. 6788114237Snjl 6789114237SnjlFixed a problem where identifiers within procedure headers and 6790114237Snjlwithin quotes were not fully lower cased (they were left with a 6791114237Snjlstarting capital.) 6792114237Snjl 6793114237SnjlSome C macros whose only purpose is to allow the generation of 16- 6794114237Snjlbit code are now completely removed in the Linux code, increasing 6795114237Snjlreadability and maintainability. 6796114237Snjl 6797114237Snjl---------------------------------------- 6798114237Snjl 6799114237Snjl12 December 2002. Summary of changes for version 20021212. 6800114237Snjl 6801114237Snjl 6802114237Snjl1) ACPI CA Core Subsystem: 6803114237Snjl 6804114237SnjlFixed a problem where the creation of a zero-length AML Buffer 6805114237Snjlwould cause a fault. 6806114237Snjl 6807193267SjkimFixed a problem where a Buffer object that pointed to a static AML 6808126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 6809126372Snjlmemory corruption. 6810114237Snjl 6811114237SnjlFixed a problem where a user buffer (passed in to the external 6812114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 6813114237Snjlsmall to complete the operation, causing memory corruption. 6814114237Snjl 6815114237SnjlFixed a problem in the Buffer-to-String conversion code where a 6816114237Snjlstring of length one was always returned, regardless of the size 6817114237Snjlof the input Buffer object. 6818114237Snjl 6819114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 6820114237Snjllack of need and lack of consistent use. 6821114237Snjl 6822193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6823126372Snjlbelow. These are the code and data sizes for the acpica.lib 6824126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6825126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6826126372Snjlversion of the code includes the debug output trace mechanism and 6827193267Sjkimhas a much larger code and data size. Note that these values will 6828126372Snjlvary depending on the efficiency of the compiler and the compiler 6829126372Snjloptions used during generation. 6830114237Snjl 6831114237Snjl Previous Release 6832114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6833114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6834114237Snjl Current Release: 6835114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6836114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6837114237Snjl 6838114237Snjl 6839114237Snjl---------------------------------------- 6840114237Snjl05 December 2002. Summary of changes for version 20021205. 6841114237Snjl 6842114237Snjl1) ACPI CA Core Subsystem: 6843114237Snjl 6844114237SnjlFixed a problem where a store to a String or Buffer object could 6845114237Snjlcause corruption of the DSDT if the object type being stored was 6846114237Snjlthe same as the target object type and the length of the object 6847114237Snjlbeing stored was equal to or smaller than the original (existing) 6848114237Snjltarget object. This was seen to cause corruption of battery _BIF 6849114237Snjlbuffers if the _BIF method modified the buffer on the fly. 6850114237Snjl 6851193267SjkimFixed a problem where an internal error was generated if a control 6852126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 6853126372SnjlPackage declaration. This was caused by the deferred parsing of 6854126372Snjlthe control method and thus the deferred creation of the internal 6855126372Snjlmethod object. The solution to this problem was to create the 6856126372Snjlinternal method object at the moment the method is encountered in 6857126372Snjlthe first pass - so that subsequent references to the method will 6858126372Snjlable to obtain the required parameter count and thus properly 6859126372Snjlparse the method invocation. This problem presented itself as an 6860126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 6861114237Snjl 6862114237SnjlFixed a problem where the internal String object copy routine did 6863193267Sjkimnot always allocate sufficient memory for the target String object 6864126372Snjland caused memory corruption. This problem was seen to cause 6865126372Snjl"Allocation already present in list!" errors as memory allocation 6866126372Snjlbecame corrupted. 6867114237Snjl 6868193267SjkimImplemented a new function for the evaluation of namespace objects 6869126372Snjlthat allows the specification of the allowable return object 6870126372Snjltypes. This simplifies a lot of code that checks for a return 6871126372Snjlobject of one or more specific objects returned from the 6872114237Snjlevaluation (such as _STA, etc.) This may become and external 6873114237Snjlfunction if it would be useful to ACPI-related drivers. 6874114237Snjl 6875114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 6876114237Snjlclarity. 6877114237Snjl 6878114237SnjlCompleted additional code restructuring to allow more modular 6879114237Snjllinking for iASL compiler and AcpiExec. Several files were split 6880114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 6881114237Snjl 6882114237SnjlImplemented an abort mechanism to terminate an executing control 6883193267Sjkimmethod via the AML debugger. This feature is useful for debugging 6884126372Snjlcontrol methods that depend (wait) for specific hardware 6885126372Snjlresponses. 6886114237Snjl 6887193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6888126372Snjlbelow. These are the code and data sizes for the acpica.lib 6889126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6890126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6891126372Snjlversion of the code includes the debug output trace mechanism and 6892193267Sjkimhas a much larger code and data size. Note that these values will 6893126372Snjlvary depending on the efficiency of the compiler and the compiler 6894126372Snjloptions used during generation. 6895114237Snjl 6896114237Snjl Previous Release 6897114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6898114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6899114237Snjl Current Release: 6900114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6901114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6902114237Snjl 6903114237Snjl 6904114237Snjl2) iASL Compiler/Disassembler 6905114237Snjl 6906114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 6907114237SnjlDescriptors. If specified in the ASL, the optional "Resource 6908114237SnjlSource Index" and "Resource Source" fields were not inserted into 6909114237Snjlthe correct location within the AML resource descriptor, creating 6910114237Snjlan invalid descriptor. 6911114237Snjl 6912193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 6913126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 6914126372Snjlwere ignored. 6915114237Snjl 6916114237Snjl 6917114237Snjl---------------------------------------- 6918114237Snjl22 November 2002. Summary of changes for version 20021122. 6919114237Snjl 6920114237Snjl 6921114237Snjl1) ACPI CA Core Subsystem: 6922114237Snjl 6923114237SnjlFixed a reported problem where an object stored to a Method Local 6924114237Snjlor Arg was not copied to a new object during the store - the 6925114237Snjlobject pointer was simply copied to the Local/Arg. This caused 6926114237Snjlall subsequent operations on the Local/Arg to also affect the 6927114237Snjloriginal source of the store operation. 6928114237Snjl 6929114237SnjlFixed a problem where a store operation to a Method Local or Arg 6930114237Snjlwas not completed properly if the Local/Arg contained a reference 6931114237Snjl(from RefOf) to a named field. The general-purpose store-to- 6932114237Snjlnamespace-node code is now used so that this case is handled 6933114237Snjlautomatically. 6934114237Snjl 6935193267SjkimFixed a problem where the internal object copy routine would cause 6936126372Snjla protection fault if the object being copied was a Package and 6937126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 6938114237Snjlpackage. 6939114237Snjl 6940114237SnjlFixed a problem with the GPE initialization that resulted from an 6941114237Snjlambiguity in the ACPI specification. One section of the 6942114237Snjlspecification states that both the address and length of the GPE 6943193267Sjkimblock must be zero if the block is not supported. Another section 6944126372Snjlimplies that only the address need be zero if the block is not 6945193267Sjkimsupported. The code has been changed so that both the address and 6946126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 6947126372Snjlif either the address or the length is zero, the GPE block is 6948126372Snjlinvalid.) 6949114237Snjl 6950193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6951126372Snjlbelow. These are the code and data sizes for the acpica.lib 6952126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6953126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6954126372Snjlversion of the code includes the debug output trace mechanism and 6955193267Sjkimhas a much larger code and data size. Note that these values will 6956126372Snjlvary depending on the efficiency of the compiler and the compiler 6957126372Snjloptions used during generation. 6958114237Snjl 6959114237Snjl Previous Release 6960114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 6961114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 6962114237Snjl Current Release: 6963114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6964114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6965114237Snjl 6966114237Snjl 6967114237Snjl2) Linux 6968114237Snjl 6969114237SnjlCleaned up EC driver. Exported an external EC read/write 6970114237Snjlinterface. By going through this, other drivers (most notably 6971114237Snjlsonypi) will be able to serialize access to the EC. 6972114237Snjl 6973114237Snjl 6974114237Snjl3) iASL Compiler/Disassembler 6975114237Snjl 6976114237SnjlImplemented support to optionally generate include files for both 6977114237SnjlASM and C (the -i switch). This simplifies BIOS development by 6978114237Snjlautomatically creating include files that contain external 6979114237Snjldeclarations for the symbols that are created within the 6980167802Sjkim 6981114237Snjl(optionally generated) ASM and C AML source files. 6982114237Snjl 6983114237Snjl 6984114237Snjl---------------------------------------- 6985107325Siwasaki15 November 2002. Summary of changes for version 20021115. 6986104470Siwasaki 6987107325Siwasaki1) ACPI CA Core Subsystem: 6988107325Siwasaki 6989114237SnjlFixed a memory leak problem where an error during resolution of 6990167802Sjkim 6991114237Snjlmethod arguments during a method invocation from another method 6992114237Snjlfailed to cleanup properly by deleting all successfully resolved 6993114237Snjlargument objects. 6994107325Siwasaki 6995114237SnjlFixed a problem where the target of the Index() operator was not 6996114237Snjlcorrectly constructed if the source object was a package. This 6997114237Snjlproblem has not been detected because the use of a target operand 6998114237Snjlwith Index() is very rare. 6999107325Siwasaki 7000107325SiwasakiFixed a problem with the Index() operator where an attempt was 7001107325Siwasakimade to delete the operand objects twice. 7002107325Siwasaki 7003107325SiwasakiFixed a problem where an attempt was made to delete an operand 7004114237Snjltwice during execution of the CondRefOf() operator if the target 7005114237Snjldid not exist. 7006107325Siwasaki 7007114237SnjlImplemented the first of perhaps several internal create object 7008193267Sjkimfunctions that create and initialize a specific object type. This 7009126372Snjlconsolidates duplicated code wherever the object is created, thus 7010126372Snjlshrinking the size of the subsystem. 7011107325Siwasaki 7012114237SnjlImplemented improved debug/error messages for errors that occur 7013114237Snjlduring nested method invocations. All executing method pathnames 7014193267Sjkimare displayed (with the error) as the call stack is unwound - thus 7015126372Snjlsimplifying debug. 7016107325Siwasaki 7017107325SiwasakiFixed a problem introduced in the 10/02 release that caused 7018114237Snjlpremature deletion of a buffer object if a buffer was used as an 7019114237SnjlASL operand where an integer operand is required (Thus causing an 7020193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 7021126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 7022114237Snjlincorrectly.) 7023107325Siwasaki 7024193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7025126372Snjlbelow. These are the code and data sizes for the acpica.lib 7026126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7027126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7028126372Snjlversion of the code includes the debug output trace mechanism and 7029193267Sjkimhas a much larger code and data size. Note that these values will 7030126372Snjlvary depending on the efficiency of the compiler and the compiler 7031126372Snjloptions used during generation. 7032107325Siwasaki 7033107325Siwasaki Previous Release 7034107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7035107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7036107325Siwasaki Current Release: 7037107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7038107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7039107325Siwasaki 7040107325Siwasaki 7041107325Siwasaki2) Linux 7042107325Siwasaki 7043114237SnjlChanged the implementation of the ACPI semaphores to use down() 7044114237Snjlinstead of down_interruptable(). It is important that the 7045114237Snjlexecution of ACPI control methods not be interrupted by signals. 7046114237SnjlMethods must run to completion, or the system may be left in an 7047114237Snjlunknown/unstable state. 7048107325Siwasaki 7049193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 7050126372Snjl(Shawn Starr) 7051107325Siwasaki 7052107325Siwasaki 7053107325Siwasaki3) iASL Compiler/Disassembler 7054107325Siwasaki 7055107325Siwasaki 7056114237SnjlChanged the default location of output files. All output files 7057114237Snjlare now placed in the current directory by default instead of in 7058114237Snjlthe directory of the source file. This change may affect some 7059114237Snjlexisting makefiles, but it brings the behavior of the compiler in 7060114237Snjlline with other similar tools. The location of the output files 7061114237Snjlcan be overridden with the -p command line switch. 7062107325Siwasaki 7063114237Snjl 7064107325Siwasaki---------------------------------------- 7065107325Siwasaki11 November 2002. Summary of changes for version 20021111. 7066107325Siwasaki 7067107325Siwasaki 7068114237Snjl0) ACPI Specification 2.0B is released and is now available at: 7069114237Snjlhttp://www.acpi.info/index.html 7070107325Siwasaki 7071107325Siwasaki 7072107325Siwasaki1) ACPI CA Core Subsystem: 7073107325Siwasaki 7074107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 7075114237SnjlThis includes the early detection and handoff of the request to 7076114237Snjlthe SMBus region handler (avoiding all of the complex field 7077107325Siwasakisupport code), and support for the bidirectional return packet 7078107325Siwasakifrom an SMBus write operation. This paves the way for the 7079107325Siwasakidevelopment of SMBus drivers in each host operating system. 7080107325Siwasaki 7081107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 7082107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 7083107325Siwasakispecification. This had the side effect of causing ASL 7084107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 7085107325Siwasakiforever. Changed all internal references to the ACPI timeout 7086193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 7087126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 7088107325Siwasaki 7089193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7090126372Snjlbelow. These are the code and data sizes for the acpica.lib 7091126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7092126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7093126372Snjlversion of the code includes the debug output trace mechanism and 7094193267Sjkimhas a much larger code and data size. Note that these values will 7095126372Snjlvary depending on the efficiency of the compiler and the compiler 7096126372Snjloptions used during generation. 7097107325Siwasaki 7098107325Siwasaki Previous Release 7099107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7100107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7101107325Siwasaki Current Release: 7102107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7103107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7104107325Siwasaki 7105107325Siwasaki 7106107325Siwasaki2) Linux 7107107325Siwasaki 7108107325SiwasakiModule loading/unloading fixes (John Cagle) 7109107325Siwasaki 7110107325Siwasaki 7111107325Siwasaki3) iASL Compiler/Disassembler 7112107325Siwasaki 7113107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 7114107325Siwasaki 7115107325SiwasakiImplemented support for the disassembly of all SMBus protocol 7116107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 7117107325Siwasaki 7118107325Siwasaki---------------------------------------- 7119107325Siwasaki01 November 2002. Summary of changes for version 20021101. 7120107325Siwasaki 7121107325Siwasaki 7122107325Siwasaki1) ACPI CA Core Subsystem: 7123107325Siwasaki 7124193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 7125126372Snjlblock were not handled correctly. This resulted in a "GPE 7126114237Snjloverlap" error message. GPE0 is no longer required. 7127107325Siwasaki 7128107325SiwasakiRemoved code added in the previous release that inserted nodes 7129114237Snjlinto the namespace in alphabetical order. This caused some side- 7130114237Snjleffects on various machines. The root cause of the problem is 7131114237Snjlstill under investigation since in theory, the internal ordering 7132114237Snjlof the namespace nodes should not matter. 7133107325Siwasaki 7134107325Siwasaki 7135114237SnjlEnhanced error reporting for the case where a named object is not 7136114237Snjlfound during control method execution. The full ACPI namepath 7137114237Snjl(name reference) of the object that was not found is displayed in 7138114237Snjlthis case. 7139107325Siwasaki 7140193267SjkimNote: as a result of the overhaul of the namespace object types in 7141126372Snjlthe previous release, the namespace nodes for the predefined 7142114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 7143114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 7144114237Snjlmanagement code but may affect code that walks the namespace tree 7145114237Snjllooking for specific object types. 7146114237Snjl 7147193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7148126372Snjlbelow. These are the code and data sizes for the acpica.lib 7149126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7150126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7151126372Snjlversion of the code includes the debug output trace mechanism and 7152193267Sjkimhas a much larger code and data size. Note that these values will 7153126372Snjlvary depending on the efficiency of the compiler and the compiler 7154126372Snjloptions used during generation. 7155107325Siwasaki 7156107325Siwasaki Previous Release 7157107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7158107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7159107325Siwasaki Current Release: 7160107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7161107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7162107325Siwasaki 7163107325Siwasaki 7164107325Siwasaki2) Linux 7165107325Siwasaki 7166107325SiwasakiFixed a problem introduced in the previous release where the 7167193267SjkimProcessor and Thermal objects were not recognized and installed in 7168193267Sjkim/proc. This was related to the scope type change described above. 7169107325Siwasaki 7170107325Siwasaki 7171107325Siwasaki3) iASL Compiler/Disassembler 7172107325Siwasaki 7173114237SnjlImplemented the -g option to get all of the required ACPI tables 7174114237Snjlfrom the registry and save them to files (Windows version of the 7175193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 7176107325Siwasaki 7177114237SnjlAdded ACPI table checksum validation during table disassembly in 7178114237Snjlorder to catch corrupted tables. 7179107325Siwasaki 7180107325Siwasaki 7181107325Siwasaki---------------------------------------- 7182107325Siwasaki22 October 2002. Summary of changes for version 20021022. 7183107325Siwasaki 7184107325Siwasaki1) ACPI CA Core Subsystem: 7185107325Siwasaki 7186114237SnjlImplemented a restriction on the Scope operator that the target 7187114237Snjlmust already exist in the namespace at the time the operator is 7188114237Snjlencountered (during table load or method execution). In other 7189114237Snjlwords, forward references are not allowed and Scope() cannot 7190114237Snjlcreate a new object. This changes the previous behavior where the 7191193267Sjkiminterpreter would create the name if not found. This new behavior 7192126372Snjlcorrectly enables the search-to-root algorithm during namespace 7193126372Snjllookup of the target name. Because of this upsearch, this fixes 7194126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 7195126372Snjlinterpreter and iASL compiler compatible with other ACPI 7196114237Snjlimplementations. 7197107325Siwasaki 7198114237SnjlCompleted a major overhaul of the internal ACPI object types for 7199114237Snjlthe ACPI Namespace and the associated operand objects. Many of 7200114237Snjlthese types had become obsolete with the introduction of the two- 7201114237Snjlpass namespace load. This cleanup simplifies the code and makes 7202114237Snjlthe entire namespace load mechanism much clearer and easier to 7203114237Snjlunderstand. 7204107325Siwasaki 7205114237SnjlImproved debug output for tracking scope opening/closing to help 7206114237Snjldiagnose scoping issues. The old scope name as well as the new 7207114237Snjlscope name are displayed. Also improved error messages for 7208114237Snjlproblems with ASL Mutex objects and error messages for GPE 7209114237Snjlproblems. 7210107325Siwasaki 7211107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 7212107325Siwasaki 7213114237SnjlAll string output (for all namespace/object dumps) now uses the 7214193267Sjkimcommon ACPI string output procedure which handles escapes properly 7215126372Snjland does not emit non-printable characters. 7216107325Siwasaki 7217107325SiwasakiFixed some issues with constants in the 64-bit version of the 7218107325Siwasakilocal C library (utclib.c) 7219107325Siwasaki 7220107325Siwasaki 7221107325Siwasaki2) Linux 7222107325Siwasaki 7223107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 7224107325Siwasakiinterrupt level. 7225107325Siwasaki 7226107325Siwasaki 7227107325Siwasaki3) iASL Compiler/Disassembler 7228107325Siwasaki 7229193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 7230126372Snjl2 opcodes outside of a control method. This means that the 7231114237Snjl"executable" operators (versus the "namespace" operators) cannot 7232193267Sjkimbe used at the table level; they can only be used within a control 7233126372Snjlmethod. 7234107325Siwasaki 7235107325SiwasakiImplemented the restriction on the Scope() operator where the 7236107325Siwasakitarget must already exist in the namespace at the time the 7237114237Snjloperator is encountered (during ASL compilation). In other words, 7238193267Sjkimforward references are not allowed and Scope() cannot create a new 7239126372Snjlobject. This makes the iASL compiler compatible with other ACPI 7240193267Sjkimimplementations and makes the Scope() implementation adhere to the 7241126372SnjlACPI specification. 7242107325Siwasaki 7243193267SjkimFixed a problem where namepath optimization for the Alias operator 7244193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 7245126372Snjla "Missing alias link" error message. 7246107325Siwasaki 7247114237SnjlFixed a problem where an "unknown reserved name" warning could be 7248114237Snjlincorrectly generated for names like "_SB" when the trailing 7249114237Snjlunderscore is not used in the original ASL. 7250107325Siwasaki 7251107325SiwasakiFixed a problem where the reserved name check did not handle 7252114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 7253114237Snjlthe NamePath was examined instead of the last NameSeg. 7254107325Siwasaki 7255107325Siwasaki 7256107325Siwasaki---------------------------------------- 7257107325Siwasaki 7258104470Siwasaki02 October 2002. Summary of changes for this release. 7259104470Siwasaki 7260104470Siwasaki 7261104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 7262104470Siwasaki 7263104470SiwasakiFixed a problem where a store/copy of a string to an existing 7264193267Sjkimstring did not always set the string length properly in the String 7265126372Snjlobject. 7266104470Siwasaki 7267104470SiwasakiFixed a reported problem with the ToString operator where the 7268193267Sjkimbehavior was identical to the ToHexString operator instead of just 7269126372Snjlsimply converting a raw buffer to a string data type. 7270104470Siwasaki 7271104470SiwasakiFixed a problem where CopyObject and the other "explicit" 7272193267Sjkimconversion operators were not updating the internal namespace node 7273126372Snjltype as part of the store operation. 7274104470Siwasaki 7275104470SiwasakiFixed a memory leak during implicit source operand conversion 7276193267Sjkimwhere the original object was not deleted if it was converted to a 7277126372Snjlnew object of a different type. 7278104470Siwasaki 7279193267SjkimEnhanced error messages for all problems associated with namespace 7280193267Sjkimlookups. Common procedure generates and prints the lookup name as 7281126372Snjlwell as the formatted status. 7282104470Siwasaki 7283104470SiwasakiCompleted implementation of a new design for the Alias support 7284193267Sjkimwithin the namespace. The existing design did not handle the case 7285193267Sjkimwhere a new object was assigned to one of the two names due to the 7286193267Sjkimuse of an explicit conversion operator, resulting in the two names 7287126372Snjlpointing to two different objects. The new design simply points 7288126372Snjlthe Alias name to the original name node - not to the object. 7289193267SjkimThis results in a level of indirection that must be handled in the 7290126372Snjlname resolution mechanism. 7291104470Siwasaki 7292193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7293126372Snjlbelow. These are the code and data sizes for the acpica.lib 7294126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7295126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7296126372Snjlversion of the code includes the debug output trace mechanism and 7297193267Sjkimhas a larger code and data size. Note that these values will vary 7298126372Snjldepending on the efficiency of the compiler and the compiler 7299126372Snjloptions used during generation. 7300104470Siwasaki 7301104470Siwasaki Previous Release 7302104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7303104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7304104470Siwasaki Current Release: 7305104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7306104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7307104470Siwasaki 7308104470Siwasaki 7309104470Siwasaki2) Linux 7310104470Siwasaki 7311104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 7312104470SiwasakiNeumann) 7313104470Siwasaki 7314104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 7315104470Siwasaki 7316114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 7317104470Siwasaki 7318104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 7319104470Siwasaki 7320104470SiwasakiIA64 fixes. (David Mosberger) 7321104470Siwasaki 7322104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 7323104470Siwasaki 7324104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 7325104470SiwasakiBrodowski) 7326104470Siwasaki 7327104470Siwasaki 7328104470Siwasaki3) iASL Compiler/Disassembler 7329104470Siwasaki 7330104470SiwasakiClarified some warning/error messages. 7331104470Siwasaki 7332104470Siwasaki 7333104470Siwasaki---------------------------------------- 7334104470Siwasaki18 September 2002. Summary of changes for this release. 7335104470Siwasaki 7336104470Siwasaki 7337104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 7338104470Siwasaki 7339114237SnjlFixed a reported problem with reference chaining (via the Index() 7340193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 7341126372SnjlThe definition of these operators includes the dereferencing of 7342126372Snjlall chained references to return information on the base object. 7343104470Siwasaki 7344104470SiwasakiFixed a problem with stores to indexed package elements - the 7345104470Siwasakiexisting code would not complete the store if an "implicit 7346114237Snjlconversion" was not performed. In other words, if the existing 7347114237Snjlobject (package element) was to be replaced completely, the code 7348114237Snjldidn't handle this case. 7349104470Siwasaki 7350104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 7351104470Siwasakitarget name to refer to an object of type Integer, String, or 7352104470SiwasakiBuffer, in addition to the scoping object types (Device, 7353104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 7354114237SnjlThis allows existing AML code that has workarounds for a bug in 7355193267SjkimWindows to function properly. A warning is issued, however. This 7356126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 7357126372Snjlan example of this type of ASL code: 7358104470Siwasaki 7359104470Siwasaki Name(DEB,0x00) 7360104470Siwasaki Scope(DEB) 7361104470Siwasaki { 7362104470Siwasaki 7363114237SnjlFixed some reported problems with 64-bit integer support in the 7364114237Snjllocal implementation of C library functions (clib.c) 7365104470Siwasaki 7366104470Siwasaki 7367104470Siwasaki2) Linux 7368104470Siwasaki 7369104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 7370104470Siwasakiundefined in non-SMP. 7371104470Siwasaki 7372114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 7373114237Snjlsystems that do not have an interrupt override entry in the MADT. 7374104470Siwasaki 7375104470Siwasaki2.5 big driver reorganization (Pat Mochel) 7376104470Siwasaki 7377104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 7378104470Siwasaki 7379104470SiwasakiNew blacklist entries (Andi Kleen) 7380104470Siwasaki 7381114237SnjlBlacklist improvements. Split blacklist code out into a separate 7382114237Snjlfile. Move checking the blacklist to very early. Previously, we 7383114237Snjlwould use ACPI tables, and then halfway through init, check the 7384114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 7385114237Snjlback to non-ACPI. 7386104470Siwasaki 7387104470Siwasaki 7388104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 7389104470Siwasaki 7390114237SnjlFixed a problem where the typechecking code didn't know that an 7391114237Snjlalias could point to a method. In other words, aliases were not 7392114237Snjlbeing dereferenced during typechecking. 7393104470Siwasaki 7394104470Siwasaki 7395104470Siwasaki---------------------------------------- 7396104470Siwasaki29 August 2002. Summary of changes for this release. 7397104470Siwasaki 7398104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 7399104470Siwasaki 7400114237SnjlIf the target of a Scope() operator already exists, it must be an 7401114237Snjlobject type that actually opens a scope -- such as a Device, 7402193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 7403126372Snjlcheck has been added to the iASL compiler also. 7404104470Siwasaki 7405114237SnjlTightened up the namespace load to disallow multiple names in the 7406114237Snjlsame scope. This previously was allowed if both objects were of 7407114237Snjlthe same type. (i.e., a lookup was the same as entering a new 7408114237Snjlname). 7409104470Siwasaki 7410104470Siwasaki 7411104470Siwasaki2) Linux 7412104470Siwasaki 7413104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 7414104470Siwasakipolarity. 7415104470Siwasaki 7416104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 7417104470Siwasaki 7418104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 7419104470Siwasakiinterpreter *or* the tables. 7420104470Siwasaki 7421193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 7422126372SnjlTakayoshi) 7423104470Siwasaki 7424104470Siwasaki 7425104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 7426104470Siwasaki 7427104470SiwasakiImplemented namepath optimization for name declarations. For 7428104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 7429104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 7430104470Siwasaki\_SB_ scope. This optimization is in addition to the named 7431104470Siwasakireference path optimization first released in the previous 7432114237Snjlversion. This would seem to complete all possible optimizations 7433114237Snjlfor namepaths within the ASL/AML. 7434104470Siwasaki 7435114237SnjlIf the target of a Scope() operator already exists, it must be an 7436114237Snjlobject type that actually opens a scope -- such as a Device, 7437114237SnjlMethod, Scope, etc. 7438104470Siwasaki 7439114237SnjlImplemented a check and warning for unreachable code in the same 7440114237Snjlblock below a Return() statement. 7441104470Siwasaki 7442114237SnjlFixed a problem where the listing file was not generated if the 7443114237Snjlcompiler aborted if the maximum error count was exceeded (200). 7444104470Siwasaki 7445193267SjkimFixed a problem where the typechecking of method return values was 7446126372Snjlbroken. This includes the check for a return value when the 7447114237Snjlmethod is invoked as a TermArg (a return value is expected.) 7448104470Siwasaki 7449104470SiwasakiFixed a reported problem where EOF conditions during a quoted 7450104470Siwasakistring or comment caused a fault. 7451104470Siwasaki 7452104470Siwasaki 7453104470Siwasaki---------------------------------------- 7454102550Siwasaki15 August 2002. Summary of changes for this release. 7455102550Siwasaki 7456102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 7457102550Siwasaki 7458114237SnjlFixed a reported problem where a Store to a method argument that 7459193267Sjkimcontains a reference did not perform the indirect store correctly. 7460126372SnjlThis problem was created during the conversion to the new 7461126372Snjlreference object model - the indirect store to a method argument 7462126372Snjlcode was not updated to reflect the new model. 7463102550Siwasaki 7464114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 7465193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 7466102550Siwasaki 7467102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 7468114237Snjlprefix. The heavy use of the carat operator by the new namepath 7469193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 7470126372Snjlinterpreter handling of this prefix. In the case where one or 7471126372Snjlmore carats precede a single nameseg, the nameseg was treated as 7472126372Snjlstandalone and the search rule (to root) was inadvertently 7473114237Snjlapplied. This could cause both the iASL compiler and the 7474114237Snjlinterpreter to find the wrong object or to miss the error that 7475114237Snjlshould occur if the object does not exist at that exact pathname. 7476102550Siwasaki 7477114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 7478193267Sjkimload. This was a relatively minor tweak to the table loading code 7479126372Snjl(a problem caused by the unexpected encounter with a method 7480193267Sjkiminvocation not within a control method), but it does not solve the 7481126372Snjloverall issue of the execution of AML code at the table level. 7482126372SnjlThis investigation is still ongoing. 7483102550Siwasaki 7484193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7485126372Snjlbelow. These are the code and data sizes for the acpica.lib 7486126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7487126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7488126372Snjlversion of the code includes the debug output trace mechanism and 7489193267Sjkimhas a larger code and data size. Note that these values will vary 7490126372Snjldepending on the efficiency of the compiler and the compiler 7491126372Snjloptions used during generation. 7492102550Siwasaki 7493102550Siwasaki Previous Release 7494104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7495104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7496102550Siwasaki Current Release: 7497104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7498104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7499102550Siwasaki 7500102550Siwasaki 7501102550Siwasaki2) Linux 7502102550Siwasaki 7503102550SiwasakiRemove redundant slab.h include (Brad Hards) 7504102550Siwasaki 7505102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 7506102550Siwasaki 7507102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 7508102550Siwasaki 7509104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 7510104470SiwasakiMachek) 7511102550Siwasaki 7512102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 7513102550Siwasaki 7514102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 7515102550Siwasaki 7516102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 7517102550Siwasaki 7518102550Siwasaki 7519102550Siwasaki3) iASL Compiler/Disassembler 7520102550Siwasaki 7521114237SnjlReworked the compiler options to make them more consistent and to 7522114237Snjluse two-letter options where appropriate. We were running out of 7523114237Snjlsensible letters. This may break some makefiles, so check the 7524114237Snjlcurrent options list by invoking the compiler with no parameters. 7525102550Siwasaki 7526102550SiwasakiCompleted the design and implementation of the ASL namepath 7527114237Snjloptimization option for the compiler. This option optimizes all 7528114237Snjlreferences to named objects to the shortest possible path. The 7529193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 7530126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 7531126372Snjlcannot be used (because either the name is not in the search path 7532126372Snjlor there is a conflict with another object with the same name), 7533126372Snjlthe pathname is optimized using the carat prefix (usually a 7534126372Snjlshorter string than specifying the entire path from the root.) 7535102550Siwasaki 7536114237SnjlImplemented support to obtain the DSDT from the Windows registry 7537114237Snjl(when the disassembly option is specified with no input file). 7538114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 7539114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 7540114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 7541114237Snjlfunction in the DOS OSL to make the disassembler truly OS 7542114237Snjlindependent. 7543102550Siwasaki 7544114237SnjlImplemented a new option to disassemble and compile in one step. 7545114237SnjlWhen used without an input filename, this option will grab the 7546193267SjkimDSDT from the local machine, disassemble it, and compile it in one 7547126372Snjlstep. 7548102550Siwasaki 7549114237SnjlAdded a warning message for invalid escapes (a backslash followed 7550114237Snjlby any character other than the allowable escapes). This catches 7551114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 7552167802Sjkim 7553193267SjkimAlso, there are numerous instances in the ACPI specification where 7554126372Snjlthis error occurs. 7555102550Siwasaki 7556104470SiwasakiAdded a compiler option to disable all optimizations. This is 7557114237Snjlbasically the "compatibility mode" because by using this option, 7558114237Snjlthe AML code will come out exactly the same as other ASL 7559114237Snjlcompilers. 7560102550Siwasaki 7561114237SnjlAdded error messages for incorrectly ordered dependent resource 7562114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 7563114237Snjldependent resource list, nested dependent function macros (both 7564114237Snjlstart and end), and missing StartDependentFn macro. These are 7565114237Snjlcommon errors that should be caught at compile time. 7566102550Siwasaki 7567114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 7568114237Snjlmust be included in the namespace for proper disassembly (because 7569114237Snjlthe disassembler must know the number of arguments.) 7570102550Siwasaki 7571104470SiwasakiAdded an "optimization" message type that is optional (off by 7572114237Snjldefault). This message is used for all optimizations - including 7573193267Sjkimconstant folding, integer optimization, and namepath optimization. 7574102550Siwasaki 7575102550Siwasaki---------------------------------------- 7576102550Siwasaki25 July 2002. Summary of changes for this release. 7577102550Siwasaki 7578102550Siwasaki 7579102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 7580102550Siwasaki 7581114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 7582193267Sjkimcode and has been integrated into the iASL compiler (see below) as 7583126372Snjlwell as the single-step disassembly for the AML debugger and the 7584126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 7585126372Snjlresource templates and macros are fully supported. The 7586114237Snjldisassembler has been tested on over 30 different AML files, 7587114237Snjlproducing identical AML when the resulting disassembled ASL file 7588114237Snjlis recompiled with the same ASL compiler. 7589102550Siwasaki 7590114237SnjlModified the Resource Manager to allow zero interrupts and zero 7591114237Snjldma channels during the GetCurrentResources call. This was 7592114237Snjlcausing problems on some platforms. 7593102550Siwasaki 7594114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 7595114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 7596114237Snjlinterfaces. 7597102550Siwasaki 7598193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7599126372Snjlbelow. These are the code and data sizes for the acpica.lib 7600126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7601126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7602126372Snjlversion of the code includes the debug output trace mechanism and 7603193267Sjkimhas a larger code and data size. Note that these values will vary 7604126372Snjldepending on the efficiency of the compiler and the compiler 7605126372Snjloptions used during generation. 7606102550Siwasaki 7607102550Siwasaki Previous Release 7608104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7609104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7610102550Siwasaki Current Release: 7611104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7612104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7613102550Siwasaki 7614102550Siwasaki 7615102550Siwasaki2) Linux 7616102550Siwasaki 7617102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 7618102550Siwasaki 7619114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 7620114237Snjl(Richard Schaal) 7621102550Siwasaki 7622102550Siwasaki 7623102550Siwasaki3) iASL compiler 7624102550Siwasaki 7625114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 7626114237Snjloption invokes the disassembler to completely disassemble an 7627114237Snjlinput AML file, producing as output a text ASL file with the 7628114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 7629114237Snjlsource files.) A future enhancement will allow the disassembler 7630114237Snjlto obtain the BIOS DSDT from the registry under Windows. 7631102550Siwasaki 7632102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 7633102550Siwasakidescriptors where an invalid AML sequence was created. 7634102550Siwasaki 7635114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 7636114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 7637114237Snjlcausing reduction conflicts. 7638102550Siwasaki 7639104470SiwasakiFixed a problem where the Ones opcode could get converted to a 7640193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 7641126372Snjlwas expected. The 64-bit value is now truncated to the correct 7642126372Snjlsize with the correct value. 7643102550Siwasaki 7644102550Siwasaki 7645167802Sjkim 7646102550Siwasaki---------------------------------------- 7647102550Siwasaki02 July 2002. Summary of changes for this release. 7648102550Siwasaki 7649102550Siwasaki 7650102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 7651102550Siwasaki 7652114237SnjlThe Table Manager code has been restructured to add several new 7653114237Snjlfeatures. Tables that are not required by the core subsystem 7654114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 7655193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 7656126372Snjlrequested. The AcpiOsTableOverride interface is now called for 7657126372Snjleach table that is loaded by the subsystem in order to allow the 7658126372Snjlhost to override any table it chooses. Previously, only the DSDT 7659126372Snjlcould be overridden. Added one new files, tbrsdt.c and 7660114237Snjltbgetall.c. 7661102550Siwasaki 7662193267SjkimFixed a problem with the conversion of internal package objects to 7663126372Snjlexternal objects (when a package is returned from a control 7664114237Snjlmethod.) The return buffer length was set to zero instead of the 7665114237Snjlproper length of the package object. 7666102550Siwasaki 7667104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 7668114237Snjloperators when passing reference arguments to control methods. A 7669114237Snjlnew type of Reference object is used internally for references 7670114237Snjlproduced by the RefOf operator. 7671102550Siwasaki 7672193267SjkimAdded additional error messages in the Resource Manager to explain 7673126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 7674102550Siwasaki 7675104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 7676193267Sjkimfiner granularity initialization sequence. These two calls should 7677126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 7678114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 7679114237Snjlsame. 7680102550Siwasaki 7681102550Siwasaki 7682102550Siwasaki2) Linux 7683102550Siwasaki 7684114237SnjlUpdated the ACPI utilities module to understand the new style of 7685193267Sjkimfully resolved package objects that are now returned from the core 7686126372Snjlsubsystem. This eliminates errors of the form: 7687102550Siwasaki 7688102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 7689102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 7690102550Siwasaki Invalid element in package (not a device reference) 7691102550Siwasaki 7692102550SiwasakiThe method evaluation utility uses the new buffer allocation 7693102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 7694102550Siwasaki 7695102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 7696167802Sjkim 7697114237SnjlController before the namespace has been fully initialized, which 7698114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 7699114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 7700114237Snjllimited testing was performed of the added functionality.) 7701102550Siwasaki 7702102550SiwasakiFixed memory leaks in the EC driver. 7703102550Siwasaki 7704102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 7705102550Siwasaki 7706114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 7707114237Snjlno longer needed since acpi_evaluate_object can optionally 7708104470Siwasakiallocate memory for the return object. 7709102550Siwasaki 7710193267SjkimImplemented fix for keyboard hang when getting battery readings on 7711126372Snjlsome systems (Stephen White) 7712102550Siwasaki 7713102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 7714102550Siwasaki 7715114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 7716114237Snjlsupport 7717102550Siwasaki 7718102550Siwasaki---------------------------------------- 7719102550Siwasaki11 June 2002. Summary of changes for this release. 7720102550Siwasaki 7721102550Siwasaki 7722102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 7723102550Siwasaki 7724104470SiwasakiFixed a reported problem where constants such as Zero and One 7725114237Snjlappearing within _PRT packages were not handled correctly within 7726114237Snjlthe resource manager code. Originally reported against the ASL 7727114237Snjlcompiler because the code generator now optimizes integers to 7728193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 7729126372SnjlThe _PRT code now handles all AML constant opcodes correctly 7730126372Snjl(Zero, One, Ones, Revision). 7731102550Siwasaki 7732102550SiwasakiFixed a problem with the Concatenate operator in the AML 7733193267Sjkiminterpreter where a buffer result object was incorrectly marked as 7734126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 7735102550Siwasaki 7736104470SiwasakiAll package sub-objects are now fully resolved before they are 7737114237Snjlreturned from the external ACPI interfaces. This means that name 7738114237Snjlstrings are resolved to object handles, and constant operators 7739114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 7740102550Siwasaki 7741102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 7742104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 7743104470Siwasakiwithin the AML stream. This has simplified and reduced the 7744104470Siwasakigenerated code size of the subsystem by eliminating about 10 7745104470Siwasakiswitch statements for these constants (which previously were 7746193267Sjkimcontained in Reference objects.) The complicating issues are that 7747126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 7748193267Sjkimoptional target operands and stores to constants are defined to be 7749126372Snjlno-ops. 7750102550Siwasaki 7751193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7752126372Snjlbelow. These are the code and data sizes for the acpica.lib 7753114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7754114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7755114237Snjlversion of the code includes the debug output trace mechanism and 7756193267Sjkimhas a larger code and data size. Note that these values will vary 7757126372Snjldepending on the efficiency of the compiler and the compiler 7758114237Snjloptions used during generation. 7759102550Siwasaki 7760102550Siwasaki Previous Release 7761104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7762104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7763102550Siwasaki Current Release: 7764104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7765104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7766102550Siwasaki 7767102550Siwasaki 7768102550Siwasaki2) Linux 7769102550Siwasaki 7770167802Sjkim 7771104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 7772104470Siwasakibridges (Bjorn Helgaas). 7773102550Siwasaki 7774102550Siwasaki 7775102550Siwasaki3) iASL Compiler Version X2046: 7776102550Siwasaki 7777193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 7778126372Snjlcontrol method with one argument. There are no arguments, and 7779114237Snjl_DDN does not have to be a control method. 7780102550Siwasaki 7781114237SnjlFixed a problem with the Linux version of the compiler where the 7782114237Snjlsource lines printed with error messages were the wrong lines. 7783114237SnjlThis turned out to be the "LF versus CR/LF" difference between 7784114237SnjlWindows and Unix. This appears to be the longstanding issue 7785114237Snjlconcerning listing output and error messages. 7786102550Siwasaki 7787114237SnjlFixed a problem with the Linux version of compiler where opcode 7788114237Snjlnames within error messages were wrong. This was caused by a 7789114237Snjlslight difference in the output of the Flex tool on Linux versus 7790114237SnjlWindows. 7791102550Siwasaki 7792193267SjkimFixed a problem with the Linux compiler where the hex output files 7793126372Snjlcontained some garbage data caused by an internal buffer overrun. 7794102550Siwasaki 7795102550Siwasaki 7796102550Siwasaki---------------------------------------- 7797102550Siwasaki17 May 2002. Summary of changes for this release. 7798102550Siwasaki 7799102550Siwasaki 7800102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 7801102550Siwasaki 7802102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 7803104470SiwasakiOmniBook where the FADT revision number and the table size are 7804193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 7805126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 7806126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 7807126372Snjlby the revision number. Although this is a BIOS bug, this is a 7808126372Snjlcase where the workaround is simple enough and with no side 7809126372Snjleffects, so it seemed prudent to add it. A warning message is 7810126372Snjlissued, however. 7811102550Siwasaki 7812193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 7813126372Snjl- the FADT and FACS, as well as consistency checks between the 7814114237Snjlrevision number and the table size. 7815102550Siwasaki 7816114237SnjlFixed a reported problem in the table override support where the 7817114237Snjlnew table pointer was incorrectly treated as a physical address 7818114237Snjlinstead of a logical address. 7819102550Siwasaki 7820114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 7821114237Snjlwith more descriptive codes. 7822102550Siwasaki 7823193267SjkimFixed a problem where an exception would occur if an ASL Field was 7824126372Snjldefined with no named Field Units underneath it (used by some 7825114237Snjlindex fields). 7826102550Siwasaki 7827193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7828126372Snjlbelow. These are the code and data sizes for the acpica.lib 7829126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7830126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7831126372Snjlversion of the code includes the debug output trace mechanism and 7832193267Sjkimhas a larger code and data size. Note that these values will vary 7833126372Snjldepending on the efficiency of the compiler and the compiler 7834126372Snjloptions used during generation. 7835102550Siwasaki 7836102550Siwasaki Previous Release 7837104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7838104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7839102550Siwasaki Current Release: 7840104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7841104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7842102550Siwasaki 7843102550Siwasaki 7844102550Siwasaki 7845102550Siwasaki2) Linux 7846102550Siwasaki 7847114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 7848114237Snjl(Paul D. and Dominik Brodowski) 7849102550Siwasaki 7850102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 7851102550Siwasaki 7852102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 7853102550Siwasaki 7854102550SiwasakiFix "MHz" typo (Dominik Brodowski) 7855102550Siwasaki 7856102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 7857102550Siwasaki 7858102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 7859102550Siwasaki 7860102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 7861102550Siwasaki 7862102550Siwasaki3) iASL Compiler Version X2044: 7863102550Siwasaki 7864193267SjkimImplemented error checking for the string used in the EISAID macro 7865193267Sjkim(Usually used in the definition of the _HID object.) The code now 7866126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 7867126372Snjluppercase letters and 4 hex digits. 7868102550Siwasaki 7869102550SiwasakiIf a raw string is used in the definition of the _HID object 7870102550Siwasaki(instead of the EISAID macro), the string must contain all 7871114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 7872114237Snjlof the asterisk.) 7873102550Siwasaki 7874114237SnjlImplemented checking for invalid use of ACPI reserved names for 7875114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 7876114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 7877114237SnjlPreviously, this check was only performed for control methods. 7878102550Siwasaki 7879114237SnjlImplemented an additional check on the Name operator to emit an 7880114237Snjlerror if a reserved name that must be implemented in ASL as a 7881114237Snjlcontrol method is used. We know that a reserved name must be a 7882114237Snjlmethod if it is defined with input arguments. 7883102550Siwasaki 7884193267SjkimThe warning emitted when a namespace object reference is not found 7885126372Snjlduring the cross reference phase has been changed into an error. 7886193267SjkimThe "External" directive should be used for names defined in other 7887126372Snjlmodules. 7888102550Siwasaki 7889102550Siwasaki 7890102550Siwasaki4) Tools and Utilities 7891102550Siwasaki 7892114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 7893114237Snjltested. 7894102550Siwasaki 7895193267SjkimFixed a problem with the output of both acpidump and adump16 where 7896126372Snjlthe indentation of closing parentheses and brackets was not 7897167802Sjkim 7898114237Snjlaligned properly with the parent block. 7899102550Siwasaki 7900102550Siwasaki 7901102550Siwasaki---------------------------------------- 7902102550Siwasaki03 May 2002. Summary of changes for this release. 7903102550Siwasaki 7904102550Siwasaki 7905102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 7906102550Siwasaki 7907114237SnjlAdded support a new OSL interface that allows the host operating 7908167802Sjkim 7909114237Snjlsystem software to override the DSDT found in the firmware - 7910193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 7911126372Snjlversion of the firmware DSDT and replace it with a different one 7912126372Snjlif desired. 7913102550Siwasaki 7914114237SnjlAdded new external interfaces for accessing ACPI registers from 7915114237Snjldevice drivers and other system software - AcpiGetRegister and 7916114237SnjlAcpiSetRegister. This was simply an externalization of the 7917114237Snjlexisting AcpiHwBitRegister interfaces. 7918102550Siwasaki 7919104470SiwasakiFixed a regression introduced in the previous build where the 7920104470SiwasakiASL/AML CreateField operator always returned an error, 7921102550Siwasaki"destination must be a NS Node". 7922102550Siwasaki 7923114237SnjlExtended the maximum time (before failure) to successfully enable 7924114237SnjlACPI mode to 3 seconds. 7925102550Siwasaki 7926193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7927126372Snjlbelow. These are the code and data sizes for the acpica.lib 7928126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7929126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7930126372Snjlversion of the code includes the debug output trace mechanism and 7931193267Sjkimhas a larger code and data size. Note that these values will vary 7932126372Snjldepending on the efficiency of the compiler and the compiler 7933126372Snjloptions used during generation. 7934102550Siwasaki 7935102550Siwasaki Previous Release 7936104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 7937104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 7938102550Siwasaki Current Release: 7939104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7940104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7941102550Siwasaki 7942102550Siwasaki 7943102550Siwasaki2) Linux 7944102550Siwasaki 7945104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 7946193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 7947126372Snjlone still hangs when testing the LAPIC timer. 7948102550Siwasaki 7949114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 7950114237Snjlname. 7951102550Siwasaki 7952102550SiwasakiAdded warning on boot for Presario 711FR. 7953102550Siwasaki 7954102550SiwasakiSleep improvements (Pavel Machek) 7955102550Siwasaki 7956102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 7957102550Siwasaki 7958102550SiwasakiIA64: Fixed memory map functions (JI Lee) 7959102550Siwasaki 7960102550Siwasaki 7961102550Siwasaki3) iASL Compiler Version X2043: 7962102550Siwasaki 7963114237SnjlAdded support to allow the compiler to be integrated into the MS 7964114237SnjlVC++ development environment for one-button compilation of single 7965114237Snjlfiles or entire projects -- with error-to-source-line mapping. 7966102550Siwasaki 7967104470SiwasakiImplemented support for compile-time constant folding for the 7968104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 7969104470Siwasakispecification. This allows the ASL writer to use expressions 7970104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 7971114237Snjlevaluate to constants at compile time and will also simplify the 7972114237Snjlemitted AML in any such sub-expressions that can be folded 7973104470Siwasaki(evaluated at compile-time.) This increases the size of the 7974104470Siwasakicompiler significantly because a portion of the ACPI CA AML 7975104470Siwasakiinterpreter is included within the compiler in order to pre- 7976104470Siwasakievaluate constant expressions. 7977102550Siwasaki 7978114237Snjl 7979102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 7980114237Snjlcompiler to fault. (This macro is used in conjunction with the 7981114237Snjl_STR reserved name.) 7982102550Siwasaki 7983114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 7984114237SnjlOnes opcodes where possible to further reduce the size of integer 7985114237Snjlconstants and thus reduce the overall size of the generated AML 7986114237Snjlcode. 7987102550Siwasaki 7988193267SjkimImplemented error checking for new reserved terms for ACPI version 7989126372Snjl2.0A. 7990102550Siwasaki 7991104470SiwasakiImplemented the -qr option to display the current list of ACPI 7992104470Siwasakireserved names known to the compiler. 7993102550Siwasaki 7994104470SiwasakiImplemented the -qc option to display the current list of ASL 7995104470Siwasakioperators that are allowed within constant expressions and can 7996193267Sjkimtherefore be folded at compile time if the operands are constants. 7997102550Siwasaki 7998102550Siwasaki 7999102550Siwasaki4) Documentation 8000102550Siwasaki 8001193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 8002126372Snjland memory allocation model options. 8003102550Siwasaki 8004114237SnjlUpdated the iASL Compiler User Reference to apply new format and 8005114237Snjladd information about new features and options. 8006102550Siwasaki 8007102550Siwasaki---------------------------------------- 8008102550Siwasaki19 April 2002. Summary of changes for this release. 8009102550Siwasaki 8010102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 8011102550Siwasaki 8012114237SnjlThe source code base for the Core Subsystem has been completely 8013114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 8014114237Snjlversions. The Lint option files used are included in the 8015114237Snjl/acpi/generate/lint directory. 8016102550Siwasaki 8017102550SiwasakiImplemented enhanced status/error checking across the entire 8018114237SnjlHardware manager subsystem. Any hardware errors (reported from 8019114237Snjlthe OSL) are now bubbled up and will abort a running control 8020114237Snjlmethod. 8021102550Siwasaki 8022167802Sjkim 8023114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 8024114237Snjlwas stored only with control method nodes, causing a fault when 8025114237Snjlnon-control method code was executed during table loading. The 8026114237Snjlsolution implemented uses a global variable to indicate table 8027114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 8028114237Snjlnot support mixed integer widths across different ACPI tables 8029114237Snjl(DSDT, SSDT). 8030102550Siwasaki 8031114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 8032114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 8033114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 8034114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 8035193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 8036193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 8037126372Snjlclarify this issue. 8038102550Siwasaki 8039104470SiwasakiFixed a problem with the SystemMemory operation region handler 8040104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 8041104470Siwasakispecified access width was larger than a byte. This caused 8042104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 8043193267Sjkimaccessed with the width specified. On systems that do not support 8044193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 8045126372Snjlalignment before proceeding in order to avoid an AML-caused 8046126372Snjlalignment fault within the kernel. 8047102550Siwasaki 8048102550Siwasaki 8049114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 8050114237Snjlof the 4-byte Irq field was extracted. 8051102550Siwasaki 8052114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 8053114237Snjlfunction was out of date and required a rewrite. 8054114237Snjl 8055193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8056126372Snjlbelow. These are the code and data sizes for the acpica.lib 8057126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8058126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8059126372Snjlversion of the code includes the debug output trace mechanism and 8060193267Sjkimhas a larger code and data size. Note that these values will vary 8061126372Snjldepending on the efficiency of the compiler and the compiler 8062126372Snjloptions used during generation. 8063102550Siwasaki 8064102550Siwasaki Previous Release 8065104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8066104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8067102550Siwasaki Current Release: 8068104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8069104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8070102550Siwasaki 8071102550Siwasaki 8072102550Siwasaki2) Linux 8073102550Siwasaki 8074102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 8075102550Siwasaki 8076102550Siwasaki 8077102550Siwasaki3) iASL Compiler Version X2042: 8078102550Siwasaki 8079104470SiwasakiImplemented an additional compile-time error check for a field 8080104470Siwasakiunit whose size + minimum access width would cause a run-time 8081114237Snjlaccess beyond the end-of-region. Previously, only the field size 8082114237Snjlitself was checked. 8083102550Siwasaki 8084104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 8085104470Siwasakiobject in preparation for compile-time evaluation of the type 8086104470Siwasaki3/4/5 ASL operators. 8087102550Siwasaki 8088102550Siwasaki 8089102550Siwasaki---------------------------------------- 8090102550SiwasakiSummary of changes for this release: 03_29_02 8091102550Siwasaki 8092102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 8093102550Siwasaki 8094104470SiwasakiImplemented support for late evaluation of TermArg operands to 8095193267SjkimBuffer and Package objects. This allows complex expressions to be 8096126372Snjlused in the declarations of these object types. 8097102550Siwasaki 8098193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 8099126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 8100126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 8101193267Sjkimthe field is returned as a buffer only if the field is larger than 8102126372Snjl64 bits. The TableRevision is now considered when making this 8103126372Snjlconversion to avoid incompatibility with existing ASL code. 8104102550Siwasaki 8105104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 8106114237Snjlallows an RSDP with either a logical or physical address. With 8107114237Snjlthis support, the host OS can now override all ACPI tables with 8108114237Snjlone logical RSDP. Includes implementation of "typed" pointer 8109114237Snjlsupport to allow a common data type for both physical and logical 8110114237Snjlpointers internally. This required a change to the 8111114237SnjlAcpiOsGetRootPointer interface. 8112102550Siwasaki 8113193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 8114193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 8115126372Snjlmapped I/O for these ACPI features. 8116102550Siwasaki 8117102550SiwasakiInitialization now ignores not only non-required tables (All 8118114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 8119114237Snjlnot validate the table headers of unrecognized tables. 8120102550Siwasaki 8121102550SiwasakiFixed a problem where a notify handler could only be 8122102550Siwasakiinstalled/removed on an object of type Device. All "notify" 8123167802Sjkim 8124102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 8125102550SiwasakiThermal. 8126102550Siwasaki 8127114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 8128193267Sjkimcritical information is returned when this debug level is enabled. 8129102550Siwasaki 8130193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8131126372Snjlbelow. These are the code and data sizes for the acpica.lib 8132126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8133126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8134126372Snjlversion of the code includes the debug output trace mechanism and 8135193267Sjkimhas a larger code and data size. Note that these values will vary 8136126372Snjldepending on the efficiency of the compiler and the compiler 8137126372Snjloptions used during generation. 8138102550Siwasaki 8139102550Siwasaki Previous Release 8140104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8141104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8142102550Siwasaki Current Release: 8143104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8144104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8145102550Siwasaki 8146102550Siwasaki 8147102550Siwasaki2) Linux: 8148102550Siwasaki 8149114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 8150114237Snjl2.0-based processor performance control (e.g. Intel(R) 8151114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 8152114237Snjlthe Intel "applet" interface are not supported through this. The 8153114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 8154114237Snjl[Note that basic policy for controlling performance state 8155114237Snjltransitions will be included in the next version of ospmd.] The 8156114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 8157114237Snjlerrata handling underwent a complete overhaul (big thanks to 8158114237SnjlDominik Brodowski). 8159102550Siwasaki 8160114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 8161114237Snjlbased devices in the ACPI namespace are now dynamically bound 8162114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 8163114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 8164114237Snjlsubordinate PCI bridges. 8165102550Siwasaki 8166104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 8167104470Siwasakientries defined underneath PCI bridges. 8168102550Siwasaki 8169104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 8170104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 8171102550Siwasaki 8172114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 8173114237Snjl(acpi.c, mpparse.c) -- stay tuned. 8174102550Siwasaki 8175102550SiwasakiAdded back visual differentiation between fixed-feature and 8176114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 8177114237Snjlbutton/power/PWRF) to simplify button identification. 8178102550Siwasaki 8179114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 8180114237Snjlany "_THIS_MODULE defined but not used" messages. 8181102550Siwasaki 8182102550SiwasakiCan now shut down the system using "magic sysrq" key. 8183102550Siwasaki 8184102550Siwasaki 8185102550Siwasaki3) iASL Compiler version 2041: 8186102550Siwasaki 8187104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 8188104470Siwasakiconstants were not reported. 8189102550Siwasaki 8190193267SjkimImplemented a fix for the General Register template Address field. 8191126372SnjlThis field was 8 bits when it should be 64. 8192102550Siwasaki 8193193267SjkimFixed a problem where errors/warnings were no longer being emitted 8194126372Snjlwithin the listing output file. 8195102550Siwasaki 8196114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 8197114237Snjlexactly 4 characters, alphanumeric only. 8198102550Siwasaki 8199102550Siwasaki 8200102550Siwasaki 8201102550Siwasaki 8202102550Siwasaki---------------------------------------- 8203102550SiwasakiSummary of changes for this release: 03_08_02 8204102550Siwasaki 8205102550Siwasaki 8206102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 8207102550Siwasaki 8208114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 8209193267Sjkimkeyword could cause an interpreter error due to attempting to read 8210126372Snjlor write beyond the end of the parent Operation Region. 8211102550Siwasaki 8212193267SjkimFixed a problem in the SystemMemory Operation Region handler where 8213126372Snjlan attempt was made to map memory beyond the end of the region. 8214126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 8215126372Snjlerrors on some Linux systems. 8216102550Siwasaki 8217114237SnjlFixed a problem where the interpreter/namespace "search to root" 8218114237Snjlalgorithm was not functioning for some object types. Relaxed the 8219114237Snjlinternal restriction on the search to allow upsearches for all 8220114237Snjlexternal object types as well as most internal types. 8221102550Siwasaki 8222102550Siwasaki 8223102550Siwasaki2) Linux: 8224102550Siwasaki 8225193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 8226102550Siwasaki 8227193267SjkimWriting to the processor limit interface should now work. "echo 1" 8228126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 8229167802Sjkim 8230126372Snjldefault. 8231102550Siwasaki 8232102550Siwasaki 8233102550Siwasaki3) ASL compiler: 8234102550Siwasaki 8235102550SiwasakiFixed segfault on Linux version. 8236102550Siwasaki 8237102550Siwasaki 8238102550Siwasaki---------------------------------------- 8239102550SiwasakiSummary of changes for this release: 02_25_02 8240102550Siwasaki 8241102550Siwasaki1) ACPI CA Core Subsystem: 8242102550Siwasaki 8243102550Siwasaki 8244102550SiwasakiFixed a problem where the GPE bit masks were not initialized 8245102550Siwasakiproperly, causing erratic GPE behavior. 8246102550Siwasaki 8247193267SjkimImplemented limited support for multiple calling conventions. The 8248126372Snjlcode can be generated with either the VPL (variable parameter 8249114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 8250114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 8251114237Snjlwhen generated with FPL. 8252102550Siwasaki 8253102550Siwasaki 8254102550Siwasaki2) Linux 8255102550Siwasaki 8256114237SnjlRe-add some /proc/acpi/event functionality that was lost during 8257114237Snjlthe rewrite 8258102550Siwasaki 8259193267SjkimResolved issue with /proc events for fixed-feature buttons showing 8260126372Snjlup as the system device. 8261102550Siwasaki 8262193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 8263102550Siwasaki 8264114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 8265102550Siwasaki 8266114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 8267102550Siwasaki 8268104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 8269104470Siwasakihysterisis. 8270102550Siwasaki 8271102550SiwasakiRestructured PRT support. 8272102550Siwasaki 8273102550Siwasaki 8274102550Siwasaki---------------------------------------- 8275102550SiwasakiSummary of changes for this label: 02_14_02 8276102550Siwasaki 8277102550Siwasaki 8278102550Siwasaki1) ACPI CA Core Subsystem: 8279102550Siwasaki 8280114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 8281114237SnjlFADT tables. 8282102550Siwasaki 8283114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 8284193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 8285193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 8286126372Snjltree. 8287102550Siwasaki 8288114237SnjlAll C macros defined within the subsystem have been prefixed with 8289114237Snjl"ACPI_" to avoid collision with other system include files. 8290102550Siwasaki 8291193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 8292126372Snjlit is never used and causes lint warnings for ignoring the return 8293126372Snjlvalue. 8294102550Siwasaki 8295104470SiwasakiAdded error checking to all internal mutex acquire and release 8296104470Siwasakicalls. Although a failure from one of these interfaces is 8297104470Siwasakiprobably a fatal system error, these checks will cause the 8298114237Snjlimmediate abort of the currently executing method or interface. 8299102550Siwasaki 8300114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 8301193267Sjkimfault. This was a side effect of the deployment of the new memory 8302126372Snjlallocation model. 8303102550Siwasaki 8304193267SjkimFixed a couple of problems with the Global Lock support introduced 8305193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 8306126372Snjlbeing overwritten with the FACS signature and clobbering the 8307126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 8308126372Snjlunmapped after construction of the "common" FACS, preventing 8309126372Snjlaccess to the actual Global Lock field within it. The "common" 8310126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 8311126372Snjlis used simply as a global. 8312102550Siwasaki 8313193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8314126372Snjlbelow. These are the code and data sizes for the acpica.lib 8315126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8316126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8317126372Snjlversion of the code includes the debug output trace mechanism and 8318193267Sjkimhas a larger code and data size. Note that these values will vary 8319126372Snjldepending on the efficiency of the compiler and the compiler 8320126372Snjloptions used during generation. 8321102550Siwasaki 8322102550Siwasaki Previous Release (02_07_01) 8323104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8324104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8325102550Siwasaki Current Release: 8326104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8327104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8328102550Siwasaki 8329102550Siwasaki 8330102550Siwasaki2) Linux 8331102550Siwasaki 8332102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 8333102550Siwasakichanges described above. 8334102550Siwasaki 8335114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 8336114237Snjlproper poll functionality. 8337102550Siwasaki 8338102550SiwasakiFixed and restructured power management (acpi_bus). 8339102550Siwasaki 8340193267SjkimOnly create /proc "view by type" when devices of that class exist. 8341102550Siwasaki 8342104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 8343102550Siwasaki 8344102550SiwasakiImproved thermal zone code. 8345102550Siwasaki 8346102550Siwasaki 8347102550Siwasaki3) ASL Compiler, version X2039: 8348102550Siwasaki 8349114237Snjl 8350114237SnjlImplemented the new compiler restriction on ASL String hex/octal 8351193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 8352126372Snjlvalue is used. (This will require an ACPI 2.0 specification 8353126372Snjlchange.) 8354102550Siwasaki 8355193267SjkimAML object labels that are output to the optional C and ASM source 8356126372Snjlare now prefixed with both the ACPI table signature and table ID 8357126372Snjlto help guarantee uniqueness within a large BIOS project. 8358102550Siwasaki 8359102550Siwasaki 8360102550Siwasaki---------------------------------------- 8361102550SiwasakiSummary of changes for this label: 02_01_02 8362102550Siwasaki 8363102550Siwasaki1) ACPI CA Core Subsystem: 8364102550Siwasaki 8365114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 8366114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 8367114237Snjlother changes for ACPI 2.0 support are complete. With 8368193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 8369126372SnjlACPI 2.0 support has been implemented with almost no additional 8370126372Snjlcost in terms of code and data size. 8371102550Siwasaki 8372114237SnjlImplemented a new mechanism for allocation of return buffers. If 8373114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 8374114237Snjlbe allocated on behalf of the caller. Consolidated all return 8375114237Snjlbuffer validation and allocation to a common procedure. Return 8376193267Sjkimbuffers will be allocated via the primary OSL allocation interface 8377193267Sjkimsince it appears that a separate pool is not needed by most users. 8378126372SnjlIf a separate pool is required for these buffers, the caller can 8379126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 8380102550Siwasaki 8381102550SiwasakiImplemented support for string operands within the DerefOf 8382102550Siwasakioperator. 8383102550Siwasaki 8384114237SnjlRestructured the Hardware and Event managers to be table driven, 8385114237Snjlsimplifying the source code and reducing the amount of generated 8386114237Snjlcode. 8387102550Siwasaki 8388102550SiwasakiSplit the common read/write low-level ACPI register bitfield 8389104470Siwasakiprocedure into a separate read and write, simplifying the code 8390104470Siwasakiconsiderably. 8391102550Siwasaki 8392114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 8393114237Snjlused only a handful of times and didn't have enough critical mass 8394193267Sjkimfor a separate interface. Replaced with a common calloc procedure 8395126372Snjlin the core. 8396102550Siwasaki 8397104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 8398104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 8399114237SnjlReorganized the GPE information and shrunk a large array that was 8400114237Snjloriginally large enough to hold info for all possible GPEs (256) 8401114237Snjlto simply large enough to hold all GPEs up to the largest GPE 8402114237Snjlnumber on the machine. 8403102550Siwasaki 8404114237SnjlFixed a reported problem with resource structure alignment on 64- 8405114237Snjlbit platforms. 8406102550Siwasaki 8407102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 8408102550Siwasakiinterfaces to not require any flags for the common case of 8409102550Siwasakienabling/disabling a GPE. 8410102550Siwasaki 8411104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 8412102550Siwasaki 8413114237SnjlMost TBDs in comments within the source code have been resolved 8414114237Snjland eliminated. 8415102550Siwasaki 8416167802Sjkim 8417102550SiwasakiFixed a problem in the interpreter where a standalone parent 8418102550Siwasakiprefix (^) was not handled correctly in the interpreter and 8419102550Siwasakidebugger. 8420102550Siwasaki 8421102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 8422102550Siwasaki 8423193267SjkimImplemented Field support in the ASL Load operator. This allows a 8424126372Snjltable to be loaded from a named field, in addition to loading a 8425114237Snjltable directly from an Operation Region. 8426102550Siwasaki 8427193267SjkimImplemented timeout and handle support in the external Global Lock 8428126372Snjlinterfaces. 8429102550Siwasaki 8430114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 8431193267Sjkimlonger being generated correctly during the dump of named objects. 8432102550Siwasaki 8433102550SiwasakiModified the AML debugger to give a full display of if/while 8434102550Siwasakipredicates instead of just one AML opcode at a time. (The 8435193267Sjkimpredicate can have several nested ASL statements.) The old method 8436126372Snjlwas confusing during single stepping. 8437102550Siwasaki 8438193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8439126372Snjlbelow. These are the code and data sizes for the acpica.lib 8440114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8441114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8442114237Snjlversion of the code includes the debug output trace mechanism and 8443193267Sjkimhas a larger code and data size. Note that these values will vary 8444126372Snjldepending on the efficiency of the compiler and the compiler 8445114237Snjloptions used during generation. 8446102550Siwasaki 8447102550Siwasaki Previous Release (12_18_01) 8448114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8449114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8450102550Siwasaki Current Release: 8451114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8452114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8453102550Siwasaki 8454102550Siwasaki2) Linux 8455102550Siwasaki 8456104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 8457104470Siwasakidriver) 8458102550Siwasaki 8459102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 8460102550Siwasaki 8461102550SiwasakiNew thermal policy (Thermal driver) 8462102550Siwasaki 8463102550SiwasakiMany updates to /proc 8464102550Siwasaki 8465102550SiwasakiBattery "low" event support (Battery driver) 8466102550Siwasaki 8467104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 8468102550Siwasaki 8469104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 8470102550Siwasaki 8471102550SiwasakiMenuconfig options redesigned 8472102550Siwasaki 8473102550Siwasaki3) ASL Compiler, version X2037: 8474102550Siwasaki 8475193267SjkimImplemented several new output features to simplify integration of 8476126372SnjlAML code into firmware: 1) Output the AML in C source code with 8477193267Sjkimlabels for each named ASL object. The original ASL source code 8478193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 8479126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 8480126372Snjlraw hex table form, in either C or ASM. 8481102550Siwasaki 8482102550SiwasakiImplemented support for optional string parameters to the 8483102550SiwasakiLoadTable operator. 8484102550Siwasaki 8485104470SiwasakiCompleted support for embedded escape sequences within string 8486114237Snjlliterals. The compiler now supports all single character escapes 8487114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 8488114237Snjlnull byte into a string literal (via the hex/octal escape) causes 8489114237Snjlthe string to be immediately terminated. A warning is issued. 8490102550Siwasaki 8491104470SiwasakiFixed a problem where incorrect AML was generated for the case 8492104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 8493102550Siwasaki 8494102550Siwasaki) with no trailing name segments. 8495102550Siwasaki 8496102550SiwasakiThe compiler has been successfully generated with a 64-bit C 8497102550Siwasakicompiler. 8498102550Siwasaki 8499102550Siwasaki 8500102550Siwasaki 8501102550Siwasaki 8502102550Siwasaki---------------------------------------- 8503102550SiwasakiSummary of changes for this label: 12_18_01 8504102550Siwasaki 8505102550Siwasaki1) Linux 8506102550Siwasaki 8507114237SnjlEnhanced blacklist with reason and severity fields. Any table's 8508114237Snjlsignature may now be used to identify a blacklisted system. 8509102550Siwasaki 8510114237SnjlCall _PIC control method to inform the firmware which interrupt 8511114237Snjlmodel the OS is using. Turn on any disabled link devices. 8512102550Siwasaki 8513102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 8514102550Siwasaki 8515102550Siwasaki 2) ACPI CA Core Subsystem: 8516102550Siwasaki 8517193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 8518126372Snjlwhile loop) 8519102550Siwasaki 8520102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 8521102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 8522193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 8523193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 8524126372Snjl2.0 task is support for the String data type in the DerefOf 8525193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 8526126372Snjlwas lost if the caller had to actually wait for the mutex. 8527102550Siwasaki 8528104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 8529102550Siwasaki 8530193267SjkimCompleted implementation of the external Global Lock interfaces -- 8531126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 8532126372SnjlHandler parameters were added. 8533102550Siwasaki 8534102550SiwasakiCompleted another pass at removing warnings and issues when 8535114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 8536114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 8537114237Snjladd and subtract (diff) macros have changed considerably. 8538102550Siwasaki 8539167802Sjkim 8540114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 8541114237Snjl64-bit platforms, 32-bits on all others. This type is used 8542193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 8543126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 8544126372Snjland AcpiOsCallocate. 8545102550Siwasaki 8546102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 8547102550Siwasaki 8548193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8549126372Snjlbelow. These are the code and data sizes for the acpica.lib 8550114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8551114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8552114237Snjlversion of the code includes the debug output trace mechanism and 8553114237Snjlhas a larger code and data size. Note that these values will vary 8554114237Snjldepending on the efficiency of the compiler and the compiler 8555114237Snjloptions used during generation. 8556102550Siwasaki 8557102550Siwasaki Previous Release (12_05_01) 8558114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8559114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8560102550Siwasaki Current Release: 8561114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8562114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8563102550Siwasaki 8564102550Siwasaki 3) ASL Compiler, version X2034: 8565102550Siwasaki 8566114237SnjlNow checks for (and generates an error if detected) the use of a 8567114237SnjlBreak or Continue statement without an enclosing While statement. 8568102550Siwasaki 8569167802Sjkim 8570102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 8571102550Siwasakicompiler. 8572102550Siwasaki 8573102550Siwasaki ---------------------------------------- 8574102550SiwasakiSummary of changes for this label: 12_05_01 8575102550Siwasaki 8576102550Siwasaki 1) ACPI CA Core Subsystem: 8577102550Siwasaki 8578102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 8579104470Siwasakioperator creates a new copy of an object (and is also used to 8580193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 8581102550Siwasaki 8582102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 8583102550Siwasakiimplemented. The change is that performing a SizeOf on a 8584114237Snjlreference object causes an automatic dereference of the object to 8585114237Snjltha actual value before the size is evaluated. This behavior was 8586114237Snjlundefined in ACPI 1.0. 8587102550Siwasaki 8588114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 8589114237Snjlhave been implemented. The interrupt polarity and mode are now 8590114237Snjlindependently set. 8591102550Siwasaki 8592114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 8593114237Snjlappearing in Package objects were not properly converted to 8594114237Snjlintegers when the internal Package was converted to an external 8595114237Snjlobject (via the AcpiEvaluateObject interface.) 8596102550Siwasaki 8597114237SnjlFixed a problem with the namespace object deletion mechanism for 8598114237Snjlobjects created by control methods. There were two parts to this 8599193267Sjkimproblem: 1) Objects created during the initialization phase method 8600193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 8601126372Snjlto track objects was broken. 8602102550Siwasaki 8603114237SnjlFixed a problem where the use of the ASL Scope operator within a 8604114237Snjlcontrol method would result in an invalid opcode exception. 8605102550Siwasaki 8606114237SnjlFixed a problem introduced in the previous label where the buffer 8607114237Snjllength required for the _PRT structure was not being returned 8608114237Snjlcorrectly. 8609102550Siwasaki 8610193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8611126372Snjlbelow. These are the code and data sizes for the acpica.lib 8612114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8613114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8614114237Snjlversion of the code includes the debug output trace mechanism and 8615193267Sjkimhas a larger code and data size. Note that these values will vary 8616126372Snjldepending on the efficiency of the compiler and the compiler 8617114237Snjloptions used during generation. 8618102550Siwasaki 8619102550Siwasaki Previous Release (11_20_01) 8620114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8621114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8622102550Siwasaki 8623102550Siwasaki Current Release: 8624114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8625114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8626102550Siwasaki 8627102550Siwasaki 2) Linux: 8628102550Siwasaki 8629102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 8630102550Siwasaki 8631104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 8632114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 8633114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 8634114237Snjlentries are treated as if they were static (not yet 8635114237Snjlreconfigurable). Architecture- specific code to use this data is 8636114237Snjlabsent on IA32 but should be available shortly. 8637102550Siwasaki 8638114237SnjlChanged the initialization sequence to start the ACPI interpreter 8639114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 8640114237Snjlin init/main.c. This ordering is required to support PRT and 8641114237Snjlfacilitate other (future) enhancement. A side effect is that the 8642193267SjkimACPI bus driver and certain device drivers can no longer be loaded 8643126372Snjlas modules. 8644102550Siwasaki 8645104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 8646104470SiwasakiRouting support to be included without the ACPI Bus and other 8647104470Siwasakidevice drivers. 8648102550Siwasaki 8649102550Siwasaki 3) ASL Compiler, version X2033: 8650102550Siwasaki 8651102550SiwasakiFixed some issues with the use of the new CopyObject and 8652102550SiwasakiDataTableRegion operators. Both are fully functional. 8653102550Siwasaki 8654102550Siwasaki ---------------------------------------- 8655102550SiwasakiSummary of changes for this label: 11_20_01 8656102550Siwasaki 8657102550Siwasaki 20 November 2001. Summary of changes for this release. 8658102550Siwasaki 8659102550Siwasaki 1) ACPI CA Core Subsystem: 8660102550Siwasaki 8661104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 8662193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 8663126372Snjlthe least-significant byte of the source to the Indexed buffer 8664126372Snjlbyte. Multiple writes are not performed. 8665102550Siwasaki 8666104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 8667104470Siwasakioperator was not recorded correctly into the field object. 8668102550Siwasaki 8669102550SiwasakiFixed a problem where ASL Event objects were created in a 8670114237Snjlsignalled state. Events are now created in an unsignalled state. 8671102550Siwasaki 8672114237SnjlThe internal object cache is now purged after table loading and 8673114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 8674114237Snjlthe assumption that object use is greatest during the parse phase 8675193267Sjkimof the entire table (versus the run-time use of individual control 8676126372Snjlmethods.) 8677102550Siwasaki 8678102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 8679102550Siwasaki 8680193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8681126372Snjlfeature development with an actual reduction in the library size. 8682126372SnjlCurrent core subsystem library sizes are shown below. These are 8683126372Snjlthe code and data sizes for the acpica.lib produced by the 8684193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8685126372Snjlany ACPI driver or OSPM code. The debug version of the code 8686126372Snjlincludes the debug output trace mechanism and has a larger code 8687126372Snjland data size. Note that these values will vary depending on the 8688126372Snjlefficiency of the compiler and the compiler options used during 8689126372Snjlgeneration. 8690102550Siwasaki 8691102550Siwasaki Previous Release (11_09_01): 8692114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8693114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8694102550Siwasaki 8695102550Siwasaki Current Release: 8696114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8697114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8698102550Siwasaki 8699102550Siwasaki 2) Linux: 8700102550Siwasaki 8701114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 8702114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 8703114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 8704114237Snjlnear future. This functionality replaces 8705114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 8706114237Snjl2.4.15-preX release. To enable this feature you must add 8707114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 8708193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 8709126372Snjlthe works... 8710102550Siwasaki 8711114237SnjlRestructured the configuration options to allow boot-time table 8712114237Snjlparsing support without inclusion of the ACPI Interpreter (and 8713114237Snjlother) code. 8714102550Siwasaki 8715193267SjkimNOTE: This release does not include fixes for the reported events, 8716126372Snjlpower-down, and thermal passive cooling issues (coming soon). 8717102550Siwasaki 8718102550Siwasaki 3) ASL Compiler: 8719102550Siwasaki 8720114237SnjlAdded additional typechecking for Fields within restricted access 8721114237SnjlOperation Regions. All fields within EC and CMOS regions must be 8722114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 8723114237Snjldeclared with the BufferAcc access type. 8724102550Siwasaki 8725114237SnjlFixed a problem where the listing file output of control methods 8726114237Snjlno longer interleaved the actual AML code with the ASL source 8727114237Snjlcode. 8728102550Siwasaki 8729102550Siwasaki 8730102550Siwasaki 8731167802Sjkim 8732102550Siwasaki---------------------------------------- 8733102550SiwasakiSummary of changes for this label: 11_09_01 8734102550Siwasaki 8735102550Siwasaki1) ACPI CA Core Subsystem: 8736102550Siwasaki 8737114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 8738193267SjkimBuffer, String, or Integer source operand that is smaller than the 8739126372Snjltarget field. In these cases, the source operand is zero-extended 8740126372Snjlto fill the target field. 8741102550Siwasaki 8742104470SiwasakiFixed a problem where a Field starting bit offset (within the 8743104470Siwasakiparent operation region) was calculated incorrectly if the 8744167802Sjkim 8745104470Siwasakialignment of the field differed from the access width. This 8746114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 8747114237Snjlpossibly other fields that use the "AccessAny" keyword. 8748102550Siwasaki 8749114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 8750114237Snjlstores through method arguments did not operate correctly. 8751102550Siwasaki 8752102550Siwasaki2) Linux: 8753102550Siwasaki 8754102550SiwasakiImplemented boot-time ACPI table parsing support 8755114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 8756114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 8757114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 8758193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 8759126372Snjlthis patch does not include the required architecture-specific 8760126372Snjlchanges required to apply this information -- subsequent patches 8761126372Snjlwill be posted for both IA32 and IA64 to achieve this. 8762102550Siwasaki 8763114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 8764114237SnjlMochel. This allows IA32 systems to transition to/from various 8765114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 8766114237Snjldriver model and power-manageable drivers will prevent its 8767114237Snjl(successful) use on most systems. 8768102550Siwasaki 8769114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 8770193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 8771126372Snjltables" option, etc. 8772102550Siwasaki 8773114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 8774114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 8775114237Snjltransactions. 8776102550Siwasaki 8777102550Siwasaki ---------------------------------------- 8778102550SiwasakiSummary of changes for this label: 11_02_01 8779102550Siwasaki 8780102550Siwasaki1) ACPI CA Core Subsystem: 8781102550Siwasaki 8782102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 8783102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 8784102550Siwasakiimplemented. 8785102550Siwasaki 8786114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 8787114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 8788193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 8789126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 8790193267Sjkimthe value parameter for the address space handler interface is now 8791193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 8792126372Snjlhandle the case where the Width parameter is 64. 8793102550Siwasaki 8794104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 8795104470Siwasakidisassembly for IndexFields was not supported correctly. 8796102550Siwasaki 8797102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 8798104470Siwasakisupported. During field access, a check is performed to ensure 8799114237Snjlthat the value written to an Index or Bank register is not out of 8800114237Snjlthe range of the register. The Index (or Bank) register is 8801114237Snjlwritten before each access to the field data. Future support will 8802114237Snjlinclude allowing individual IndexFields to be wider than the 8803114237SnjlDataRegister width. 8804102550Siwasaki 8805114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 8806114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 8807114237Snjla boundary case that occurred when a DWORD field was written to a 8808114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 8809114237Snjlinterpreter to write one datum too many. 8810102550Siwasaki 8811102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 8812114237Snjlstarting bit address of a field was incorrectly calculated if the 8813114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 8814114237SnjlQwordAcc). 8815102550Siwasaki 8816104470SiwasakiFields: Fixed a problem where forward references to individual 8817193267SjkimFieldUnits (individual Field names within a Field definition) were 8818126372Snjlnot resolved during the AML table load. 8819102550Siwasaki 8820104470SiwasakiFields: Fixed a problem where forward references from a Field 8821104470Siwasakidefinition to the parent Operation Region definition were not 8822104470Siwasakiresolved during the AML table load. 8823104470Siwasaki 8824114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 8825114237Snjlduring AML table load. 8826102550Siwasaki 8827193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 8828126372Snjlreturned an incorrect name for the root node. 8829102550Siwasaki 8830193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8831126372Snjlfeature development with an actual reduction in the library size. 8832126372SnjlCurrent core subsystem library sizes are shown below. These are 8833126372Snjlthe code and data sizes for the acpica.lib produced by the 8834193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8835126372Snjlany ACPI driver or OSPM code. The debug version of the code 8836126372Snjlincludes the debug output trace mechanism and has a larger code 8837126372Snjland data size. Note that these values will vary depending on the 8838126372Snjlefficiency of the compiler and the compiler options used during 8839126372Snjlgeneration. 8840102550Siwasaki 8841102550Siwasaki Previous Release (10_18_01): 8842114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8843114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8844102550Siwasaki 8845102550Siwasaki Current Release: 8846114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8847114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8848102550Siwasaki 8849102550Siwasaki 2) Linux: 8850102550Siwasaki 8851102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 8852102550SiwasakiMODULE_LICENSE("GPL") to all modules. 8853102550Siwasaki 8854102550Siwasaki 3) ASL Compiler version X2030: 8855102550Siwasaki 8856104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 8857104470Siwasakiflagged as errors. 8858102550Siwasaki 8859102550Siwasaki 4) Documentation: 8860102550Siwasaki 8861104470SiwasakiProgrammer Reference updated to reflect OSL and address space 8862104470Siwasakihandler interface changes described above. 8863102550Siwasaki 8864102550Siwasaki---------------------------------------- 8865102550SiwasakiSummary of changes for this label: 10_18_01 8866102550Siwasaki 8867102550SiwasakiACPI CA Core Subsystem: 8868102550Siwasaki 8869193267SjkimFixed a problem with the internal object reference count mechanism 8870126372Snjlthat occasionally caused premature object deletion. This resolves 8871126372Snjlall of the outstanding problem reports where an object is deleted 8872193267Sjkimin the middle of an interpreter evaluation. Although this problem 8873126372Snjlonly showed up in rather obscure cases, the solution to the 8874126372Snjlproblem involved an adjustment of all reference counts involving 8875126372Snjlobjects attached to namespace nodes. 8876102550Siwasaki 8877102550SiwasakiFixed a problem with Field support in the interpreter where 8878114237Snjlwriting to an aligned field whose length is an exact multiple (2 8879193267Sjkimor greater) of the field access granularity would cause an attempt 8880126372Snjlto write beyond the end of the field. 8881102550Siwasaki 8882102550SiwasakiThe top level AML opcode execution functions within the 8883102550Siwasakiinterpreter have been renamed with a more meaningful and 8884102550Siwasakiconsistent naming convention. The modules exmonad.c and 8885102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 8886102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 8887102550Siwasaki 8888114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 8889102550Siwasaki 8890114237SnjlFixed a problem where the AML debugger was causing some internal 8891114237Snjlobjects to not be deleted during subsystem termination. 8892102550Siwasaki 8893104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 8894104470Siwasakiwhere the subsystem would fault if the named object to be 8895104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 8896102550Siwasaki 8897102550SiwasakiFixed a problem with IndexFields and BankFields where the 8898114237Snjlsubsystem would fault if the index, data, or bank registers were 8899114237Snjlnot defined in the same scope as the field itself. 8900102550Siwasaki 8901104470SiwasakiAdded printf format string checking for compilers that support 8902104470Siwasakithis feature. Corrected more than 50 instances of issues with 8903104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 8904104470Siwasakithroughout the core subsystem code. 8905102550Siwasaki 8906104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 8907193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 8908126372Snjlis more than 50% implemented. 8909102550Siwasaki 8910114237SnjlEnhanced the output of the AML debugger "dump namespace" command 8911114237Snjlto output in a more human-readable form. 8912102550Siwasaki 8913114237SnjlCurrent core subsystem library code sizes are shown below. These 8914167802Sjkim 8915114237Snjlare the code and data sizes for the acpica.lib produced by the 8916193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8917126372Snjlany ACPI driver or OSPM code. The debug version of the code 8918126372Snjlincludes the full debug trace mechanism -- leading to a much 8919167802Sjkim 8920114237Snjllarger code and data size. Note that these values will vary 8921114237Snjldepending on the efficiency of the compiler and the compiler 8922114237Snjloptions used during generation. 8923102550Siwasaki 8924102550Siwasaki Previous Label (09_20_01): 8925114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 8926114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 8927102550Siwasaki 8928102550Siwasaki This Label: 8929102550Siwasaki 8930114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8931114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8932114237Snjl 8933102550SiwasakiLinux: 8934102550Siwasaki 8935104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 8936104470Siwasakiknown ASL/AML problems. 8937102550Siwasaki 8938193267SjkimEnhanced the /proc interface for the thermal zone driver and added 8939126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 8940193267Sjkimfile now includes threshold/policy information, and allows setting 8941126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 8942193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 8943126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 8944126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 8945102550Siwasaki 8946104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 8947104470Siwasakiwhen loading the control method battery driver. 8948102550Siwasaki 8949102550Siwasaki ---------------------------------------- 8950102550SiwasakiSummary of changes for this label: 09_20_01 8951102550Siwasaki 8952102550Siwasaki ACPI CA Core Subsystem: 8953102550Siwasaki 8954104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 8955104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 8956114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 8957114237Snjlsleeps.) 8958102550Siwasaki 8959104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 8960104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 8961104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 8962104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 8963102550Siwasaki 8964114237SnjlA local double-precision divide/modulo module has been added to 8965114237Snjlenhance portability to OS kernels where a 64-bit math library is 8966114237Snjlnot available. The new module is "utmath.c". 8967102550Siwasaki 8968104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 8969114237Snjlstack. Originally over 2K, the maximum stack usage is now below 8970114237Snjl2K at 1860 bytes (1.82k) 8971102550Siwasaki 8972114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 8973193267Sjkimroot table pointer was not mapped into a logical address properly. 8974102550Siwasaki 8975193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 8976126372Snjlinterpreter code for the ASL Notify operator. 8977102550Siwasaki 8978102550SiwasakiFixed a problem where the use of the ASL Revision operator 8979114237Snjlreturned an error. This operator now returns the current version 8980114237Snjlof the ACPI CA core subsystem. 8981102550Siwasaki 8982114237SnjlFixed a problem where objects passed as control method parameters 8983114237Snjlto AcpiEvaluateObject were always deleted at method termination. 8984114237SnjlHowever, these objects may end up being stored into the namespace 8985114237Snjlby the called method. The object reference count mechanism was 8986114237Snjlapplied to these objects instead of a force delete. 8987102550Siwasaki 8988114237SnjlFixed a problem where static strings or buffers (contained in the 8989114237SnjlAML code) that are declared as package elements within the ASL 8990114237Snjlcode could cause a fault because the interpreter would attempt to 8991114237Snjldelete them. These objects are now marked with the "static 8992114237Snjlobject" flag to prevent any attempt to delete them. 8993102550Siwasaki 8994114237SnjlImplemented an interpreter optimization to use operands directly 8995114237Snjlfrom the state object instead of extracting the operands to local 8996114237Snjlvariables. This reduces stack use and code size, and improves 8997114237Snjlperformance. 8998102550Siwasaki 8999193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 9000126372Snjllayer of code. 9001102550Siwasaki 9002114237SnjlCurrent core subsystem library code sizes are shown below. These 9003114237Snjlare the code and data sizes for the acpica.lib produced by the 9004193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9005126372Snjlany ACPI driver or OSPM code. The debug version of the code 9006126372Snjlincludes the full debug trace mechanism -- leading to a much 9007114237Snjllarger code and data size. Note that these values will vary 9008114237Snjldepending on the efficiency of the compiler and the compiler 9009114237Snjloptions used during generation. 9010102550Siwasaki 9011102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 9012114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 9013114237SnjlTotal (Previously 195K) 9014102550Siwasaki 9015102550SiwasakiLinux: 9016102550Siwasaki 9017114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 9018114237SnjlInteger objects are now 64 bits wide 9019102550Siwasaki 9020114237SnjlAll Acpi data types and structures are now in lower case. Only 9021114237SnjlAcpi macros are upper case for differentiation. 9022102550Siwasaki 9023102550Siwasaki Documentation: 9024102550Siwasaki 9025102550SiwasakiChanges to the external interfaces as described above. 9026102550Siwasaki 9027102550Siwasaki ---------------------------------------- 9028102550SiwasakiSummary of changes for this label: 08_31_01 9029102550Siwasaki 9030102550Siwasaki ACPI CA Core Subsystem: 9031102550Siwasaki 9032114237SnjlA bug with interpreter implementation of the ASL Divide operator 9033114237Snjlwas found and fixed. The implicit function return value (not the 9034114237Snjlexplicit store operands) was returning the remainder instead of 9035114237Snjlthe quotient. This was a longstanding bug and it fixes several 9036114237Snjlknown outstanding issues on various platforms. 9037102550Siwasaki 9038104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 9039193267Sjkimbeen further optimized for size. There are 700 invocations of the 9040126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 9041126372Snjlthe debug version of the subsystem significantly. 9042102550Siwasaki 9043114237SnjlA stack trace mechanism has been implemented. The maximum stack 9044193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 9045126372Snjlstack" will display the current maximum stack usage. 9046102550Siwasaki 9047114237SnjlAll public symbols and global variables within the subsystem are 9048114237Snjlnow prefixed with the string "Acpi". This keeps all of the 9049114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 9050114237Snjlwith other kernel subsystems. 9051102550Siwasaki 9052114237SnjlMost of the internal fixed lookup tables have been moved into the 9053114237Snjlcode segment via the const operator. 9054102550Siwasaki 9055104470SiwasakiSeveral enhancements have been made to the interpreter to both 9056104470Siwasakireduce the code size and improve performance. 9057102550Siwasaki 9058114237SnjlCurrent core subsystem library code sizes are shown below. These 9059114237Snjlare the code and data sizes for the acpica.lib produced by the 9060193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9061126372Snjlany ACPI driver or OSPM code. The debug version of the code 9062126372Snjlincludes the full debug trace mechanism which contains over 700 9063126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 9064126372Snjlinvocations, and over 900 function exit macro invocations -- 9065126372Snjlleading to a much larger code and data size. Note that these 9066114237Snjlvalues will vary depending on the efficiency of the compiler and 9067114237Snjlthe compiler options used during generation. 9068102550Siwasaki 9069102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 9070102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 9071102550Siwasaki 9072102550Siwasaki Linux: 9073102550Siwasaki 9074104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 9075102550Siwasaki 9076102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 9077102550Siwasaki 9078102550Siwasaki ASL Compiler, version X2026: 9079102550Siwasaki 9080104470SiwasakiFixed a problem introduced in the previous label where the AML 9081167802Sjkim 9082104470Siwasakicode emitted for package objects produced packages with zero 9083104470Siwasakilength. 9084102550Siwasaki 9085102550Siwasaki ---------------------------------------- 9086102550SiwasakiSummary of changes for this label: 08_16_01 9087102550Siwasaki 9088102550SiwasakiACPI CA Core Subsystem: 9089102550Siwasaki 9090114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 9091114237SnjlAML interpreter (These are already supported by the Intel ASL 9092193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 9093126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 9094126372SnjlAML parser, debugger, and disassembler. 9095102550Siwasaki 9096114237SnjlThe internal memory tracking mechanism (leak detection code) has 9097114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 9098114237Snjlblock is no longer allocated for each memory allocation), and now 9099114237Snjlsupports all of the internal object caches. 9100102550Siwasaki 9101114237SnjlThe data structures and code for the internal object caches have 9102114237Snjlbeen coelesced and optimized so that there is a single cache and 9103114237Snjlmemory list data structure and a single group of functions that 9104114237Snjlimplement generic cache management. This has reduced the code 9105114237Snjlsize in both the debug and release versions of the subsystem. 9106102550Siwasaki 9107193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 9108126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 9109126372Snjldifferent, because it generates a single call to an internal 9110126372Snjlfunction. This results in a savings of about 90 bytes per 9111193267Sjkiminvocation, resulting in an overall code and data savings of about 9112126372Snjl16% in the debug version of the subsystem. 9113102550Siwasaki 9114102550Siwasaki Linux: 9115102550Siwasaki 9116114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 9117114237Snjlmachines. 9118102550Siwasaki 9119102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 9120102550Siwasaki 9121102550SiwasakiFurther tweaked source code Linuxization. 9122102550Siwasaki 9123102550SiwasakiOther minor fixes. 9124102550Siwasaki 9125102550Siwasaki ASL Compiler: 9126102550Siwasaki 9127114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 9128102550Siwasaki 9129114237SnjlFixed a problem where the optional length parameter for the ACPI 9130114237Snjl2.0 ToString operator. 9131102550Siwasaki 9132114237SnjlFixed multiple extraneous error messages when a syntax error is 9133114237Snjldetected within the declaration line of a control method. 9134102550Siwasaki 9135102550Siwasaki ---------------------------------------- 9136102550SiwasakiSummary of changes for this label: 07_17_01 9137102550Siwasaki 9138102550SiwasakiACPI CA Core Subsystem: 9139102550Siwasaki 9140104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 9141193267SjkimACPI table via the ACPI signature. The interface can be called at 9142126372Snjlany time during kernel initialization, even before the kernel 9143193267Sjkimvirtual memory manager is initialized and paging is enabled. This 9144126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 9145126372Snjlbefore the ACPI CA subsystem is initialized. 9146102550Siwasaki 9147104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 9148104470Siwasakicould be resolved to the incorrect address under the following 9149114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 9150114237Snjlparent operation region is not defined on a DWORD boundary. 9151102550Siwasaki 9152114237SnjlFixed a problem where the interpreter is not being locked during 9153114237Snjlnamespace initialization (during execution of the _INI control 9154114237Snjlmethods), causing an error when an attempt is made to release it 9155114237Snjllater. 9156102550Siwasaki 9157104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 9158114237Snjlongoing throughout the rest of this year. In this label, The Mod 9159114237Snjloperator is implemented. 9160102550Siwasaki 9161102550SiwasakiAdded a new data type to contain full PCI addresses named 9162193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 9163126372Snjland Function values. 9164102550Siwasaki 9165102550Siwasaki Linux: 9166102550Siwasaki 9167102550SiwasakiEnhanced the Linux version of the source code to change most 9168102550Siwasakicapitalized ACPI type names to lowercase. For example, all 9169114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 9170114237Snjlresult in a large diff, but the change is strictly cosmetic and 9171114237Snjlaligns the CA code closer to the Linux coding standard. 9172102550Siwasaki 9173102550SiwasakiOSL Interfaces: 9174102550Siwasaki 9175193267SjkimThe interfaces to the PCI configuration space have been changed to 9176193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 9177126372SnjlDeviceFunction field into two 16-bit fields. This was 9178114237Snjlaccomplished by moving the four values that define an address in 9179114237SnjlPCI configuration space (segment, bus, device, and function) to 9180114237Snjlthe new ACPI_PCI_ID structure. 9181102550Siwasaki 9182104470SiwasakiThe changes to the PCI configuration space interfaces led to a 9183104470Siwasakireexamination of the complete set of address space access 9184114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 9185114237Snjlinterfaces have proven difficult to maintain (any small change 9186193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 9187193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 9188126372Snjlsystems, it would not be appropriate to demultiplex the access 9189126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 9190114237Snjlcorresponding native OS interfaces contain a similar access width 9191114237Snjlparameter. For these reasons, the 18 address space interfaces 9192114237Snjlhave been replaced by these 6 new ones: 9193102550Siwasaki 9194102550SiwasakiAcpiOsReadPciConfiguration 9195102550SiwasakiAcpiOsWritePciConfiguration 9196102550SiwasakiAcpiOsReadMemory 9197102550SiwasakiAcpiOsWriteMemory 9198102550SiwasakiAcpiOsReadPort 9199102550SiwasakiAcpiOsWritePort 9200102550Siwasaki 9201114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 9202114237Snjlto perform the platform and/or OS-specific actions necessary to 9203114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 9204114237Snjlinterface will simply call down to the CA core to perform the low- 9205114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 9206114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 9207167802Sjkim 9208114237Snjlremain OS and platform independent. 9209102550Siwasaki 9210104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 9211114237Snjl"function code and pointer" interface for various miscellaneous 9212114237Snjlsignals and notifications that must be made to the host OS. The 9213114237Snjlfirst such signals are intended to support the ASL Fatal and 9214114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 9215114237Snjlinterface has been obsoleted. 9216102550Siwasaki 9217102550SiwasakiThe definition of the AcpiFormatException interface has been 9218114237Snjlchanged to simplify its use. The caller no longer must supply a 9219114237Snjlbuffer to the call; A pointer to a const string is now returned 9220114237Snjldirectly. This allows the call to be easily used in printf 9221114237Snjlstatements, etc. since the caller does not have to manage a local 9222114237Snjlbuffer. 9223102550Siwasaki 9224114237Snjl 9225102550Siwasaki ASL Compiler, Version X2025: 9226102550Siwasaki 9227114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 9228114237Snjland are fully functional. They will work with all ACPI 1.0 9229193267Sjkiminterpreters, since the operators are simply translated to If/Else 9230126372Snjlpairs. 9231102550Siwasaki 9232104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 9233104470Siwasakiwith 1.0 interpreters, for the same reason. 9234102550Siwasaki 9235114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 9236114237Snjlpackages have a separate opcode, and their size is determined by 9237114237Snjlthe interpreter at run-time. 9238102550Siwasaki 9239193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 9240126372Snjlreflect the new interfaces and changes to existing interfaces. 9241102550Siwasaki 9242102550Siwasaki ------------------------------------------ 9243102550SiwasakiSummary of changes for this label: 06_15_01 9244102550Siwasaki 9245102550Siwasaki ACPI CA Core Subsystem: 9246102550Siwasaki 9247102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 9248114237Snjlobject would get its byte address inadvertently rounded down to 9249114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 9250102550Siwasaki 9251102550Siwasaki ASL Compiler, version X2024: 9252102550Siwasaki 9253114237SnjlFixed a problem where the Switch() operator would either fault or 9254114237Snjlhang the compiler. Note however, that the AML code for this ACPI 9255114237Snjl2.0 operator is not yet implemented. 9256102550Siwasaki 9257114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 9258114237Snjltimings. 9259102550Siwasaki 9260114237SnjlImplementation of the CreateField operator automatically converts 9261114237Snjla reference to a named field within a resource descriptor from a 9262114237Snjlbyte offset to a bit offset if required. 9263102550Siwasaki 9264102550SiwasakiAdded some missing named fields from the resource descriptor 9265193267Sjkimsupport. These are the names that are automatically created by the 9266126372Snjlcompiler to reference fields within a descriptor. They are only 9267126372Snjlvalid at compile time and are not passed through to the AML 9268114237Snjlinterpreter. 9269102550Siwasaki 9270104470SiwasakiResource descriptor named fields are now typed as Integers and 9271104470Siwasakisubject to compile-time typechecking when used in expressions. 9272102550Siwasaki 9273102550Siwasaki ------------------------------------------ 9274102550SiwasakiSummary of changes for this label: 05_18_01 9275102550Siwasaki 9276102550Siwasaki ACPI CA Core Subsystem: 9277102550Siwasaki 9278114237SnjlFixed a couple of problems in the Field support code where bits 9279193267Sjkimfrom adjacent fields could be returned along with the proper field 9280126372Snjlbits. Restructured the field support code to improve performance, 9281126372Snjlreadability and maintainability. 9282102550Siwasaki 9283114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 9284114237Snjlinto the output, saving hundreds of copies of procedure name 9285114237Snjlstrings within the source, shrinking the memory footprint of the 9286114237Snjldebug version of the core subsystem. 9287102550Siwasaki 9288102550Siwasaki Source Code Structure: 9289102550Siwasaki 9290104470SiwasakiThe source code directory tree was restructured to reflect the 9291114237Snjlcurrent organization of the component architecture. Some files 9292114237Snjland directories have been moved and/or renamed. 9293102550Siwasaki 9294102550Siwasaki Linux: 9295102550Siwasaki 9296102550SiwasakiFixed leaking kacpidpc processes. 9297102550Siwasaki 9298102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 9299102550Siwasakiopened. 9300102550Siwasaki 9301102550Siwasaki ASL Compiler, version X2020: 9302102550Siwasaki 9303114237SnjlMemory allocation performance enhancement - over 24X compile time 9304114237Snjlimprovement on large ASL files. Parse nodes and namestring 9305114237Snjlbuffers are now allocated from a large internal compiler buffer. 9306102550Siwasaki 9307102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 9308102550Siwasakispecified 9309102550Siwasaki 9310193267SjkimThe "-d" debug output option now sends all output to the .DBG file 9311126372Snjlinstead of the console. 9312102550Siwasaki 9313102550Siwasaki"External" second parameter is now optional 9314102550Siwasaki 9315102550Siwasaki"ElseIf" syntax now properly allows the predicate 9316102550Siwasaki 9317102550SiwasakiLast operand to "Load" now recognized as a Target operand 9318102550Siwasaki 9319102550SiwasakiDebug object can now be used anywhere as a normal object. 9320102550Siwasaki 9321102550SiwasakiResourceTemplate now returns an object of type BUFFER 9322102550Siwasaki 9323102550SiwasakiEISAID now returns an object of type INTEGER 9324102550Siwasaki 9325102550Siwasaki"Index" now works with a STRING operand 9326102550Siwasaki 9327102550Siwasaki"LoadTable" now accepts optional parameters 9328102550Siwasaki 9329102550Siwasaki"ToString" length parameter is now optional 9330102550Siwasaki 9331102550Siwasaki"Interrupt (ResourceType," parse error fixed. 9332102550Siwasaki 9333104470Siwasaki"Register" with a user-defined region space parse error fixed 9334102550Siwasaki 9335114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 9336114237Snjlfixed 9337102550Siwasaki 9338102550Siwasaki"Revision" is now an object of type INTEGER. 9339102550Siwasaki 9340102550Siwasaki 9341102550Siwasaki 9342102550Siwasaki------------------------------------------ 9343102550SiwasakiSummary of changes for this label: 05_02_01 9344102550Siwasaki 9345102550SiwasakiLinux: 9346102550Siwasaki 9347102550Siwasaki/proc/acpi/event now blocks properly. 9348102550Siwasaki 9349102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 9350102550Siwasaki/proc/acpi/dsdt. 9351102550Siwasaki 9352102550Siwasaki ACPI CA Core Subsystem: 9353102550Siwasaki 9354193267SjkimFixed a problem introduced in the previous label where some of the 9355126372Snjl"small" resource descriptor types were not recognized. 9356102550Siwasaki 9357193267SjkimImproved error messages for the case where an ASL Field is outside 9358126372Snjlthe range of the parent operation region. 9359102550Siwasaki 9360102550Siwasaki ASL Compiler, version X2018: 9361102550Siwasaki 9362167802Sjkim 9363193267SjkimAdded error detection for ASL Fields that extend beyond the length 9364126372Snjlof the parent operation region (only if the length of the region 9365126372Snjlis known at compile time.) This includes fields that have a 9366126372Snjlminimum access width that is smaller than the parent region, and 9367126372Snjlindividual field units that are partially or entirely beyond the 9368126372Snjlextent of the parent. 9369102550Siwasaki 9370102550Siwasaki 9371102550Siwasaki 9372102550Siwasaki------------------------------------------ 9373102550SiwasakiSummary of changes for this label: 04_27_01 9374102550Siwasaki 9375102550Siwasaki ACPI CA Core Subsystem: 9376102550Siwasaki 9377193267SjkimFixed a problem where the namespace mutex could be released at the 9378126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 9379102550Siwasaki 9380104470SiwasakiAdded optional thread ID output for debug traces, to simplify 9381114237Snjldebugging of multiple threads. Added context switch notification 9382114237Snjlwhen the debug code realizes that a different thread is now 9383114237Snjlexecuting ACPI code. 9384102550Siwasaki 9385114237SnjlSome additional external data types have been prefixed with the 9386114237Snjlstring "ACPI_" for consistency. This may effect existing code. 9387193267SjkimThe data types affected are the external callback typedefs - e.g., 9388167802Sjkim 9389126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 9390102550Siwasaki 9391102550Siwasaki Linux: 9392102550Siwasaki 9393102550SiwasakiFixed an issue with the OSL semaphore implementation where a 9394102550Siwasakithread was waking up with an error from receiving a SIGCHLD 9395102550Siwasakisignal. 9396102550Siwasaki 9397114237SnjlLinux version of ACPI CA now uses the system C library for string 9398114237Snjlmanipulation routines instead of a local implementation. 9399102550Siwasaki 9400102550SiwasakiCleaned up comments and removed TBDs. 9401102550Siwasaki 9402102550Siwasaki ASL Compiler, version X2017: 9403102550Siwasaki 9404102550SiwasakiEnhanced error detection and reporting for all file I/O 9405102550Siwasakioperations. 9406102550Siwasaki 9407102550Siwasaki Documentation: 9408102550Siwasaki 9409102550SiwasakiProgrammer Reference updated to version 1.06. 9410102550Siwasaki 9411102550Siwasaki 9412102550Siwasaki 9413102550Siwasaki------------------------------------------ 9414102550SiwasakiSummary of changes for this label: 04_13_01 9415102550Siwasaki 9416102550Siwasaki ACPI CA Core Subsystem: 9417102550Siwasaki 9418102550SiwasakiRestructured support for BufferFields and RegionFields. 9419104470SiwasakiBankFields support is now fully operational. All known 32-bit 9420114237Snjllimitations on field sizes have been removed. Both BufferFields 9421114237Snjland (Operation) RegionFields are now supported by the same field 9422114237Snjlmanagement code. 9423102550Siwasaki 9424114237SnjlResource support now supports QWORD address and IO resources. The 9425114237Snjl16/32/64 bit address structures and the Extended IRQ structure 9426114237Snjlhave been changed to properly handle Source Resource strings. 9427102550Siwasaki 9428114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 9429193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 9430126372SnjlThis reserved value was changed from 0 since Unix systems allow a 9431126372Snjlthread ID of 0. 9432102550Siwasaki 9433102550SiwasakiLinux: 9434102550Siwasaki 9435102550SiwasakiDriver code reorganized to enhance portability 9436102550Siwasaki 9437102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 9438102550Siwasaki 9439102550SiwasakiFixed the EC driver to honor _GLK. 9440102550Siwasaki 9441102550SiwasakiASL Compiler, version X2016: 9442102550Siwasaki 9443114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 9444114237Snjladdress space was set to 0, not 0x7f as it should be. 9445102550Siwasaki 9446102550Siwasaki ------------------------------------------ 9447102550SiwasakiSummary of changes for this label: 03_13_01 9448102550Siwasaki 9449102550Siwasaki ACPI CA Core Subsystem: 9450102550Siwasaki 9451104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 9452104470Siwasakipresent. 9453102550Siwasaki 9454193267SjkimNotify handler fix - notifies are deferred until the parent method 9455126372Snjlcompletes execution. This fixes the "mutex already acquired" 9456126372Snjlissue seen occasionally. 9457102550Siwasaki 9458104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 9459114237Snjlfound to cause compatibility problems with existing ASL/AML. The 9460114237Snjlconvert "result-to-target-type" implementation has been removed 9461114237Snjlfor stores to method Args and Locals. Source operand conversion 9462114237Snjlis still fully implemented. Possible changes to ACPI 2.0 9463114237Snjlspecification pending. 9464102550Siwasaki 9465104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 9466104470Siwasakilength. 9467102550Siwasaki 9468102550SiwasakiFix for compiler warnings for 64-bit compiles. 9469102550Siwasaki 9470102550Siwasaki Linux: 9471102550Siwasaki 9472102550Siwasaki/proc output aligned for easier parsing. 9473102550Siwasaki 9474102550SiwasakiRelease-version compile problem fixed. 9475102550Siwasaki 9476104470SiwasakiNew kernel configuration options documented in Configure.help. 9477102550Siwasaki 9478102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 9479102550Siwasakicontext" message. 9480102550Siwasaki 9481102550Siwasaki OSPM: 9482102550Siwasaki 9483102550SiwasakiPower resource driver integrated with bus manager. 9484102550Siwasaki 9485102550SiwasakiFixed kernel fault during active cooling for thermal zones. 9486102550Siwasaki 9487102550SiwasakiSource Code: 9488102550Siwasaki 9489102550SiwasakiThe source code tree has been restructured. 9490102550Siwasaki 9491102550Siwasaki 9492102550Siwasaki 9493102550Siwasaki------------------------------------------ 9494102550SiwasakiSummary of changes for this label: 03_02_01 9495102550Siwasaki 9496102550Siwasaki Linux OS Services Layer (OSL): 9497102550Siwasaki 9498102550SiwasakiMajor revision of all Linux-specific code. 9499102550Siwasaki 9500102550SiwasakiModularized all ACPI-specific drivers. 9501102550Siwasaki 9502102550SiwasakiAdded new thermal zone and power resource drivers. 9503102550Siwasaki 9504114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 9505102550Siwasaki 9506102550SiwasakiNew kernel configuration options. 9507102550Siwasaki 9508102550Siwasaki Linux known issues: 9509102550Siwasaki 9510114237SnjlNew kernel configuration options not documented in Configure.help 9511114237Snjlyet. 9512102550Siwasaki 9513114237Snjl 9514102550SiwasakiModule dependencies not currently implemented. If used, they 9515102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 9516102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 9517102550Siwasaki 9518102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 9519102550Siwasaki 9520102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 9521102550Siwasaki 9522104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 9523104470Siwasakimessage. 9524102550Siwasaki 9525104470SiwasakiSome systems may fail with "execution mutex already acquired" 9526104470Siwasakimessage. 9527102550Siwasaki 9528102550Siwasaki ACPI CA Core Subsystem: 9529102550Siwasaki 9530114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 9531193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 9532126372Snjlbit thread ID for the currently executing thread. May be a non- 9533126372Snjlzero constant integer on single-thread systems. 9534102550Siwasaki 9535193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 9536126372Snjlmay add conditional compilation for this code (debug only) later. 9537102550Siwasaki 9538104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 9539114237Snjlincludes multiple acquires/releases by owner and support for the 9540167802Sjkim 9541114237SnjlMutex SyncLevel parameter. 9542102550Siwasaki 9543102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 9544104470SiwasakiMutexes that have been acquired but not released when a thread 9545114237Snjlexits the interpreter. This forces conformance to the ACPI spec 9546114237Snjl("All mutexes must be released when an invocation exits") and 9547114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 9548114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 9549114237Snjlcontinues to misbehave (which it will). 9550102550Siwasaki 9551104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 9552104470Siwasakisupport. 9553102550Siwasaki 9554104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 9555114237Snjlspec does in fact allow recursive method calls.) The number of 9556114237Snjlrecursive calls is subject to the restrictions imposed by the 9557114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 9558104470Siwasakiparameter. 9559102550Siwasaki 9560102550SiwasakiImplemented support for the SyncLevel parameter for control 9561102550Siwasakimethods (ACPI 2.0 feature) 9562102550Siwasaki 9563114237SnjlFixed a deadlock problem when multiple threads attempted to use 9564114237Snjlthe interpreter. 9565102550Siwasaki 9566102550SiwasakiFixed a problem where the string length of a String package 9567102550Siwasakielement was not always set in a package returned from 9568102550SiwasakiAcpiEvaluateObject. 9569102550Siwasaki 9570114237SnjlFixed a problem where the length of a String package element was 9571114237Snjlnot always included in the length of the overall package returned 9572114237Snjlfrom AcpiEvaluateObject. 9573102550Siwasaki 9574102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 9575102550Siwasakimanager. This manager keeps a list of all outstanding 9576193267Sjkimallocations, and can therefore detect memory leaks and attempts to 9577126372Snjlfree memory blocks more than once. Useful for code such as the 9578114237Snjlpower manager, etc. May not be appropriate for device drivers. 9579114237SnjlPerformance with the debug code enabled is slow. 9580102550Siwasaki 9581102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 9582102550Siwasaki 9583102550Siwasaki ASL Compiler Version X2015: 9584102550Siwasaki 9585102550SiwasakiIntegrated changes to allow the compiler to be generated on 9586102550Siwasakimultiple platforms. 9587102550Siwasaki 9588102550SiwasakiLinux makefile added to generate the compiler on Linux 9589102550Siwasaki 9590102550Siwasaki Source Code: 9591102550Siwasaki 9592102550SiwasakiAll platform-specific headers have been moved to their own 9593102550Siwasakisubdirectory, Include/Platform. 9594102550Siwasaki 9595102550SiwasakiNew source file added, Interpreter/ammutex.c 9596102550Siwasaki 9597102550SiwasakiNew header file, Include/acstruct.h 9598102550Siwasaki 9599102550Siwasaki Documentation: 9600102550Siwasaki 9601114237SnjlThe programmer reference has been updated for the following new 9602114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 9603102550Siwasaki 9604102550Siwasaki ------------------------------------------ 9605102550SiwasakiSummary of changes for this label: 02_08_01 9606102550Siwasaki 9607102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 9608193267Sjkimincorrectly returned if the return resource buffer was larger than 9609126372Snjlthe actual data (in the resource interfaces). 9610102550Siwasaki 9611114237SnjlReferences to named objects within packages are resolved to the 9612167802Sjkim 9613114237Snjlfull pathname string before packages are returned directly (via 9614114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 9615114237Snjlinterfaces. 9616102550Siwasaki 9617102550SiwasakiLinux OS Services Layer (OSL): 9618102550Siwasaki 9619102550SiwasakiImproved /proc battery interface. 9620102550Siwasaki 9621102550Siwasaki 9622104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 9623102550Siwasaki 9624102550SiwasakiASL Compiler Version X2014: 9625102550Siwasaki 9626114237SnjlAll defined method arguments can now be used as local variables, 9627114237Snjlincluding the ones that are not actually passed in as parameters. 9628114237SnjlThe compiler tracks initialization of the arguments and issues an 9629114237Snjlexception if they are used without prior assignment (just like 9630114237Snjllocals). 9631102550Siwasaki 9632193267SjkimThe -o option now specifies a filename prefix that is used for all 9633126372Snjloutput files, including the AML output file. Otherwise, the 9634114237Snjldefault behavior is as follows: 1) the AML goes to the file 9635114237Snjlspecified in the DSDT. 2) all other output files use the input 9636114237Snjlsource filename as the base. 9637102550Siwasaki 9638102550Siwasaki ------------------------------------------ 9639102550SiwasakiSummary of changes for this label: 01_25_01 9640102550Siwasaki 9641114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 9642114237Snjlstore support within the interpreter. This includes support for 9643114237Snjlthe Store operator as well as any ASL operators that include a 9644114237Snjltarget operand. 9645102550Siwasaki 9646102550SiwasakiPartially implemented support for Implicit Result-to-Target 9647114237Snjlconversion. This is when a result object is converted on the fly 9648114237Snjlto the type of an existing target object. Completion of this 9649114237Snjlsupport is pending further analysis of the ACPI specification 9650114237Snjlconcerning this matter. 9651102550Siwasaki 9652114237SnjlCPU-specific code has been removed from the subsystem (hardware 9653114237Snjldirectory). 9654102550Siwasaki 9655102550SiwasakiNew Power Management Timer functions added 9656102550Siwasaki 9657114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 9658114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 9659102550Siwasaki 9660102550SiwasakiFixed C2 and C3 latency calculations. 9661102550Siwasaki 9662102550Siwasaki 9663114237SnjlWe no longer use the compilation date for the version message on 9664193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 9665102550Siwasaki 9666102550SiwasakiIncorporated for fix Sony VAIO machines. 9667102550Siwasaki 9668104470SiwasakiDocumentation: The Programmer Reference has been updated and 9669104470Siwasakireformatted. 9670102550Siwasaki 9671102550Siwasaki 9672102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 9673102550Siwasakinumbering and error reporting could get out of sync in the 9674102550Siwasakipresence of multiple include files. 9675102550Siwasaki 9676102550Siwasaki ------------------------------------------ 9677102550SiwasakiSummary of changes for this label: 01_15_01 9678102550Siwasaki 9679102550SiwasakiCore ACPI CA Subsystem: 9680102550Siwasaki 9681114237SnjlImplemented support for type conversions in the execution of the 9682114237SnjlASL Concatenate operator (The second operand is converted to 9683114237Snjlmatch the type of the first operand before concatenation.) 9684102550Siwasaki 9685102550SiwasakiSupport for implicit source operand conversion is partially 9686114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 9687114237SnjlString are freely interchangeable for most ASL operators and are 9688114237Snjlconverted by the interpreter on the fly as required. Implicit 9689114237SnjlTarget operand conversion (where the result is converted to the 9690114237Snjltarget type before storing) is not yet implemented. 9691102550Siwasaki 9692102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 9693102550Siwasaki 9694193267SjkimProblem fixed where a field read on an aligned field could cause a 9695126372Snjlread past the end of the field. 9696102550Siwasaki 9697114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 9698114237Snjldoes not return a value, but the caller expects one. (The ASL 9699114237Snjlcompiler flags this as a warning.) 9700102550Siwasaki 9701102550SiwasakiASL Compiler: 9702102550Siwasaki 9703102550SiwasakiVersion X2011: 9704102550Siwasaki1. Static typechecking of all operands is implemented. This 9705193267Sjkimprevents the use of invalid objects (such as using a Package where 9706126372Snjlan Integer is required) at compile time instead of at interpreter 9707126372Snjlrun-time. 9708114237Snjl2. The ASL source line is printed with ALL errors and warnings. 9709102550Siwasaki3. Bug fix for source EOF without final linefeed. 9710193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 9711102550Siwasaki5. Namespace output option (-n) includes initial values for 9712102550Siwasakiintegers and strings. 9713102550Siwasaki6. Parse-only option added for quick syntax checking. 9714102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 9715102550Siwasaki 9716102550SiwasakiVersion X2012: 9717102550Siwasaki1. Relaxed typechecking to allow interchangeability between 9718114237Snjlstrings, integers, and buffers. These types are now converted by 9719114237Snjlthe interpreter at runtime. 9720114237Snjl2. Compiler reports time taken by each internal subsystem in the 9721114237Snjldebug output file. 9722102550Siwasaki 9723102550Siwasaki 9724102550Siwasaki ------------------------------------------ 9725102550SiwasakiSummary of changes for this label: 12_14_00 9726102550Siwasaki 9727102550SiwasakiASL Compiler: 9728102550Siwasaki 9729104470SiwasakiThis is the first official release of the compiler. Since the 9730104470Siwasakicompiler requires elements of the Core Subsystem, this label 9731104470Siwasakisynchronizes everything. 9732102550Siwasaki 9733102550Siwasaki------------------------------------------ 9734102550SiwasakiSummary of changes for this label: 12_08_00 9735102550Siwasaki 9736102550Siwasaki 9737114237SnjlFixed a problem where named references within the ASL definition 9738114237Snjlof both OperationRegions and CreateXXXFields did not work 9739114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9740114237Snjlinitialization of the region/field. This is similar (but not 9741114237Snjlrelated internally) to the problem that was fixed in the last 9742114237Snjllabel. 9743114237Snjl 9744102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 9745102550Siwasakifunctions ToBCD and FromBCD. 9746102550Siwasaki 9747102550SiwasakiUpdated all legal headers to include "2000" in the copyright 9748102550Siwasakiyears. 9749102550Siwasaki 9750102550Siwasaki ------------------------------------------ 9751102550SiwasakiSummary of changes for this label: 12_01_00 9752102550Siwasaki 9753193267SjkimFixed a problem where method invocations within the ASL definition 9754126372Snjlof both OperationRegions and CreateXXXFields did not work 9755126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9756114237Snjlinitialization of the region/field: 9757102550Siwasaki 9758114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 9759114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 9760114237Snjl(0x3005) 9761102550Siwasaki 9762102550SiwasakiFixed a problem where operators with more than one nested 9763104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 9764114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 9765114237Snjlproblem that has gone unnoticed until now. 9766102550Siwasaki 9767102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 9768102550Siwasaki 9769114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 9770114237Snjlprevious build (The prefix part of a relative path was handled 9771114237Snjlincorrectly). 9772102550Siwasaki 9773114237SnjlFixed a problem where Operation Region initialization failed if 9774114237Snjlthe operation region name was a "namepath" instead of a simple 9775114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 9776102550Siwasaki 9777114237SnjlFixed a problem where an assignment to a local variable via the 9778114237Snjlindirect RefOf mechanism only worked for the first such 9779102550Siwasakiassignment. Subsequent assignments were ignored. 9780102550Siwasaki 9781102550Siwasaki ------------------------------------------ 9782102550SiwasakiSummary of changes for this label: 11_15_00 9783102550Siwasaki 9784193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 9785193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 9786126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 9787126372Snjlgrammar terms at this time. 9788102550Siwasaki 9789193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 9790126372SnjlFADT. 9791102550Siwasaki 9792193267SjkimAll physical memory addresses across all platforms are now 64 bits 9793126372Snjlwide. Logical address width remains dependent on the platform 9794126372Snjl(i.e., "void *"). 9795102550Siwasaki 9796114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 9797102550Siwasaki 9798114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 9799114237Snjl2.0 specification. 9800102550Siwasaki 9801104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 9802104470Siwasakirevision number less than 2 use 32-bit integers only. 9803102550Siwasaki 9804114237SnjlFixed a problem where the evaluation of OpRegion operands did not 9805114237Snjlalways resolve them to numbers properly. 9806102550Siwasaki 9807102550Siwasaki------------------------------------------ 9808102550SiwasakiSummary of changes for this label: 10_20_00 9809102550Siwasaki 9810114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 9811114237SnjlCBN_ OpRegions when the _STA returns 0x8. 9812102550Siwasaki 9813104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 9814104470Siwasakivalues before a package object is returned 9815102550Siwasaki 9816104470SiwasakiFix for method call as predicate to if/while construct causing 9817104470Siwasakiincorrect if/while behavior 9818102550Siwasaki 9819114237SnjlFix for Else block package lengths sometimes calculated wrong (if 9820114237Snjlblock > 63 bytes) 9821102550Siwasaki 9822102550SiwasakiFix for Processor object length field, was always zero 9823102550Siwasaki 9824102550SiwasakiTable load abort if FACP sanity check fails 9825102550Siwasaki 9826102550SiwasakiFix for problem with Scope(name) if name already exists 9827102550Siwasaki 9828102550SiwasakiWarning emitted if a named object referenced cannot be found 9829102550Siwasaki(resolved) during method execution. 9830102550Siwasaki 9831102550Siwasaki 9832102550Siwasaki 9833102550Siwasaki 9834102550Siwasaki 9835102550Siwasaki------------------------------------------ 9836102550SiwasakiSummary of changes for this label: 9_29_00 9837102550Siwasaki 9838114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 9839114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 9840114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 9841114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 9842114237SnjlAcpiLoadTables 9843102550Siwasaki 9844193267SjkimNote: These interface changes require changes to all existing OSDs 9845102550Siwasaki 9846114237SnjlThe PCI_Config default address space handler is always installed 9847114237Snjlat the root namespace object. 9848102550Siwasaki 9849102550Siwasaki------------------------------------------- 9850102550SiwasakiSummary of changes for this label: 09_15_00 9851102550Siwasaki 9852102550SiwasakiThe new initialization architecture is implemented. New 9853114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 9854114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 9855167802Sjkim 9856114237Snjl(Namespace is automatically loaded when a table is loaded) 9857102550Siwasaki 9858193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 9859126372Snjl52 bytes to 32 bytes. There is usually one of these for every 9860126372Snjlnamespace object, so the memory savings is significant. 9861102550Siwasaki 9862114237SnjlImplemented just-in-time evaluation of the CreateField operators. 9863102550Siwasaki 9864102550SiwasakiBug fixes for IA-64 support have been integrated. 9865102550Siwasaki 9866102550SiwasakiAdditional code review comments have been implemented 9867102550Siwasaki 9868193267SjkimThe so-called "third pass parse" has been replaced by a final walk 9869193267Sjkimthrough the namespace to initialize all operation regions (address 9870126372Snjlspaces) and fields that have not yet been initialized during the 9871126372Snjlexecution of the various _INI and REG methods. 9872102550Siwasaki 9873102550SiwasakiNew file - namespace/nsinit.c 9874102550Siwasaki 9875102550Siwasaki------------------------------------------- 9876102550SiwasakiSummary of changes for this label: 09_01_00 9877102550Siwasaki 9878193267SjkimNamespace manager data structures have been reworked to change the 9879126372Snjlprimary object from a table to a single object. This has 9880193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 9881126372Snjl2X overall in the ACPI CA subsystem. 9882102550Siwasaki 9883102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 9884102550Siwasakiinadvertently left commented out. 9885102550Siwasaki 9886114237SnjlReduced the warning count when generating the source with the GCC 9887114237Snjlcompiler. 9888102550Siwasaki 9889102550SiwasakiRevision numbers added to each module header showing the 9890104470SiwasakiSourceSafe version of the file. Please refer to this version 9891114237Snjlnumber when giving us feedback or comments on individual modules. 9892102550Siwasaki 9893114237SnjlThe main object types within the subsystem have been renamed to 9894114237Snjlclarify their purpose: 9895102550Siwasaki 9896102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 9897102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 9898102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 9899102550Siwasaki 9900114237SnjlNOTE: no changes to the initialization sequence are included in 9901114237Snjlthis label. 9902102550Siwasaki 9903102550Siwasaki------------------------------------------- 9904102550SiwasakiSummary of changes for this label: 08_23_00 9905102550Siwasaki 9906102550SiwasakiFixed problem where TerminateControlMethod was being called 9907102550Siwasakimultiple times per method 9908102550Siwasaki 9909193267SjkimFixed debugger problem where single stepping caused a semaphore to 9910126372Snjlbe oversignalled 9911102550Siwasaki 9912104470SiwasakiImproved performance through additional parse object caching - 9913104470Siwasakiadded ACPI_EXTENDED_OP type 9914102550Siwasaki 9915102550Siwasaki------------------------------------------- 9916102550SiwasakiSummary of changes for this label: 08_10_00 9917102550Siwasaki 9918102550SiwasakiParser/Interpreter integration: Eliminated the creation of 9919102550Siwasakicomplete parse trees for ACPI tables and control methods. 9920114237SnjlInstead, parse subtrees are created and then deleted as soon as 9921193267Sjkimthey are processed (Either entered into the namespace or executed 9922126372Snjlby the interpreter). This reduces the use of dynamic kernel 9923126372Snjlmemory significantly. (about 10X) 9924102550Siwasaki 9925114237SnjlException codes broken into classes and renumbered. Be sure to 9926114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 9927114237Snjlhave to renumber the codes again now that they are split into 9928114237Snjlclasses (environment, programmer, AML code, ACPI table, and 9929114237Snjlinternal). 9930102550Siwasaki 9931104470SiwasakiFixed some additional alignment issues in the Resource Manager 9932104470Siwasakisubcomponent 9933102550Siwasaki 9934114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 9935114237Snjlseveral places where mutexes/semaphores were being unlocked 9936114237Snjlwithout a corresponding lock operation. There are no known 9937114237Snjlsemaphore or mutex "leaks" at this time. 9938102550Siwasaki 9939114237SnjlFixed the case where an ASL Return operator is used to return an 9940114237Snjlunnamed package. 9941102550Siwasaki 9942102550Siwasaki------------------------------------------- 9943102550SiwasakiSummary of changes for this label: 07_28_00 9944102550Siwasaki 9945102550SiwasakiFixed a problem with the way addresses were calculated in 9946114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 9947114237Snjlmanifested itself when a Field was created with WordAccess or 9948193267SjkimDwordAccess, but the field unit defined within the Field was less 9949167802Sjkim 9950126372Snjlthan a Word or Dword. 9951102550Siwasaki 9952102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 9953104470Siwasakioperands off of the operand stack to display information. The 9954114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 9955114237Snjlaccessing an operand stack with two or more operands. 9956102550Siwasaki 9957114237SnjlFixed a problem with the PCI configuration space handlers where 9958114237Snjlcontext was getting confused between accesses. This required a 9959114237Snjlchange to the generic address space handler and address space 9960193267Sjkimsetup definitions. Handlers now get both a global handler context 9961126372Snjl(this is the one passed in by the user when executing 9962114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 9963114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 9964114237Snjl_BBN values associated with a specific region). The generic 9965114237Snjlfunction definitions have changed to the following: 9966102550Siwasaki 9967114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 9968114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 9969104470Siwasaki*HandlerContext, // This used to be void *Context void 9970102550Siwasaki*RegionContext); // This is an additional parameter 9971102550Siwasaki 9972102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 9973102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 9974102550Siwasaki**RegionContext); // This used to be **ReturnContext 9975102550Siwasaki 9976102550Siwasaki------------------------------------------- 9977102550SiwasakiSummary of changes for this label: 07_21_00 9978102550Siwasaki 9979102550SiwasakiMajor file consolidation and rename. All files within the 9980193267Sjkiminterpreter have been renamed as well as most header files. This 9981126372Snjlwas done to prevent collisions with existing files in the host 9982126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 9983126372Snjlquite common. The VC project files have been updated. All 9984114237Snjlmakefiles will require modification. 9985102550Siwasaki 9986114237SnjlThe parser/interpreter integration continues in Phase 5 with the 9987114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 9988114237Snjltwice) for each table; This avoids the construction of a huge 9989114237Snjlparse tree and therefore reduces the amount of dynamic memory 9990114237Snjlrequired by the subsystem. Greater use of the parse object cache 9991114237Snjlmeans that performance is unaffected. 9992102550Siwasaki 9993102550SiwasakiMany comments from the two code reviews have been rolled in. 9994102550Siwasaki 9995102550SiwasakiThe 64-bit alignment support is complete. 9996102550Siwasaki 9997102550Siwasaki------------------------------------------- 9998102550SiwasakiSummary of changes for this label: 06_30_00 9999102550Siwasaki 10000114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 10001114237Snjlwe've added support in the source code for 80 column output 10002114237Snjldevices. The code is now mostly constrained to 80 columns or 10003114237Snjlless to support environments and editors that 1) cannot display 10004114237Snjlor print more than 80 characters on a single line, and 2) cannot 10005114237Snjldisable line wrapping. 10006102550Siwasaki 10007104470SiwasakiA major restructuring of the namespace data structure has been 10008104470Siwasakicompleted. The result is 1) cleaner and more 10009114237Snjlunderstandable/maintainable code, and 2) a significant reduction 10010114237Snjlin the dynamic memory requirement for each named ACPI object 10011114237Snjl(almost half). 10012102550Siwasaki 10013102550Siwasaki------------------------------------------- 10014102550SiwasakiSummary of changes for this label: 06_23_00 10015102550Siwasaki 10016114237SnjlLinux support has been added. In order to obtain approval to get 10017114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 10018114237Snjlquite a few changes to the base subsystem that will affect all 10019114237Snjlusers (all the changes are generic and OS- independent). The 10020114237Snjleffects of these global changes have been somewhat far reaching. 10021114237SnjlFiles have been merged and/or renamed and interfaces have been 10022114237Snjlrenamed. The major changes are described below. 10023102550Siwasaki 10024102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 10025102550Siwasakipollution/confusion within our target kernels. All OSD 10026114237Snjlinterfaces must be modified to match the new naming convention. 10027102550Siwasaki 10028193267SjkimFiles merged across the subsystem. A number of the smaller source 10029126372Snjland header files have been merged to reduce the file count and 10030126372Snjlincrease the density of the existing files. There are too many 10031126372Snjlto list here. In general, makefiles that call out individual 10032126372Snjlfiles will require rebuilding. 10033102550Siwasaki 10034104470SiwasakiInterpreter files renamed. All interpreter files now have the 10035104470Siwasakiprefix am* instead of ie* and is*. 10036102550Siwasaki 10037104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 10038114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 10039114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 10040114237Snjl"external interface" or xface or xf in the filenames.j 10041102550Siwasaki 10042102550Siwasaki 10043114237SnjlAll manifest constants have been forced to upper case (some were 10044193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 10045126372Snjl(not all) of the constants, typedefs, and structs. 10046102550Siwasaki 10047102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 10048102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 10049102550Siwasaki 10050102550SiwasakiAll other globals within the subsystem are now prefixed with 10051102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 10052114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 10053193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 10054126372Snjl- for example, CmCallocate became AcpiCmCallocate. 10055102550Siwasaki 10056102550SiwasakiAdded a source code translation/conversion utility. Used to 10057114237Snjlgenerate the Linux source code, it can be modified to generate 10058114237Snjlother types of source as well. Can also be used to cleanup 10059114237Snjlexisting source by removing extraneous spaces and blank lines. 10060114237SnjlFound in tools/acpisrc/* 10061102550Siwasaki 10062102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 10063102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 10064102550Siwasaki 10065114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 10066114237SnjlWhen set to one, this indicates that the caller wants to use the 10067167802Sjkim 10068114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 10069114237Snjlboth types. However, implementers of this call may want to use 10070114237Snjldifferent OS primitives depending on the type of semaphore 10071114237Snjlrequested. For example, some operating systems provide separate 10072167802Sjkim 10073193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 10074126372Snjlmuch faster because it doesn't have all the overhead of a full 10075126372Snjlsemaphore implementation. 10076102550Siwasaki 10077104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 10078114237Snjladdress space can block forever if it is the first access to the 10079114237Snjlspace. 10080102550Siwasaki 10081102550Siwasaki------------------------------------------- 10082102550SiwasakiSummary of changes for this label: 06_02_00 10083102550Siwasaki 10084102550SiwasakiSupport for environments that cannot handle unaligned data 10085114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 10086193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 10087126372Snjlbeen added (via configurable macros) in these three areas: - 10088114237SnjlTransfer of data from the raw AML byte stream is done via byte 10089193267Sjkimmoves instead of word/dword/qword moves. - External objects are 10090126372Snjlaligned within the user buffer, including package elements (sub- 10091193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 10092126372Snjldone byte-wise. 10093102550Siwasaki 10094102550SiwasakiThe Store operator was modified to mimic Microsoft's 10095102550Siwasakiimplementation when storing to a Buffer Field. 10096102550Siwasaki 10097102550SiwasakiAdded a check of the BM_STS bit before entering C3. 10098102550Siwasaki 10099114237SnjlThe methods subdirectory has been obsoleted and removed. A new 10100114237Snjlfile, cmeval.c subsumes the functionality. 10101102550Siwasaki 10102102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 10103102550Siwasakimakefile is under the acpiexec directory. 10104