changes.txt revision 212761
1117521Snjl---------------------------------------- 2212761Sjkim15 September 2010. Summary of changes for version 20100915: 3212761Sjkim 4212761SjkimThis release is available at www.acpica.org/downloads 5212761Sjkim 6212761Sjkim1) ACPI CA Core Subsystem: 7212761Sjkim 8212761SjkimRemoved the AcpiOsDerivePciId OSL interface. The various host implementations 9212761Sjkimof this function were not OS-dependent and are now obsolete and can be 10212761Sjkimremoved from all host OSLs. This function has been replaced by 11212761SjkimAcpiHwDerivePciId, which is now part of the ACPICA core code. 12212761SjkimAcpiHwDerivePciId has been implemented without recursion. Adds one new 13212761Sjkimmodule, hwpci.c. ACPICA BZ 857. 14212761Sjkim 15212761SjkimImplemented a dynamic repair for _HID and _CID strings. The following 16212761Sjkimproblems are now repaired at runtime: 1) Remove a leading asterisk in the 17212761Sjkimstring, and 2) the entire string is uppercased. Both repairs are in 18212761Sjkimaccordance with the ACPI specification and will simplify host driver code. 19212761SjkimACPICA BZ 871. 20212761Sjkim 21212761SjkimThe ACPI_THREAD_ID type is no longer configurable, internally it is now 22212761Sjkimalways UINT64. This simplifies the ACPICA code, especially any printf output. 23212761SjkimUINT64 is the only common data type for all thread_id types across all 24212761Sjkimoperating systems. It is now up to the host OSL to cast the native thread_id 25212761Sjkimtype to UINT64 before returning the value to ACPICA (via AcpiOsGetThreadId). 26212761SjkimLin Ming, Bob Moore. 27212761Sjkim 28212761SjkimAdded the ACPI_INLINE type to enhance the ACPICA configuration. The "inline" 29212761Sjkimkeyword is not standard across compilers, and this type allows inline to be 30212761Sjkimconfigured on a per-compiler basis. Lin Ming. 31212761Sjkim 32212761SjkimMade the system global AcpiGbl_SystemAwakeAndRunning publically available. 33212761SjkimAdded an extern for this boolean in acpixf.h. Some hosts utilize this value 34212761Sjkimduring suspend/restore operations. ACPICA BZ 869. 35212761Sjkim 36212761SjkimAll code that implements error/warning messages with the "ACPI:" prefix has 37212761Sjkimbeen moved to a new module, utxferror.c. 38212761Sjkim 39212761SjkimThe UINT64_OVERLAY was moved to utmath.c, which is the only module where it 40212761Sjkimis used. ACPICA BZ 829. Lin Ming, Bob Moore. 41212761Sjkim 42212761SjkimExample Code and Data Size: These are the sizes for the OS-independent 43212761Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 44212761Sjkimdebug version of the code includes the debug output trace mechanism and has a 45212761Sjkimmuch larger code and data size. 46212761Sjkim 47212761Sjkim Previous Release: 48212761Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 49212761Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 50212761Sjkim Current Release: 51212761Sjkim Non-Debug Version: 89.9K Code, 19.0K Data, 108.9K Total 52212761Sjkim Debug Version: 166.3K Code, 52.1K Data, 218.4K Total 53212761Sjkim 54212761Sjkim2) iASL Compiler/Disassembler and Tools: 55212761Sjkim 56212761SjkimiASL/Disassembler: Write ACPI errors to stderr instead of the output file. 57212761SjkimThis keeps the output files free of random error messages that may originate 58212761Sjkimfrom within the namespace/interpreter code. Used this opportunity to merge 59212761Sjkimall ACPI:-style messages into a single new module, utxferror.c. ACPICA BZ 60212761Sjkim866. Lin Ming, Bob Moore. 61212761Sjkim 62212761SjkimTools: update some printfs for ansi warnings on size_t. Handle width change 63212761Sjkimof size_t on 32-bit versus 64-bit generations. Lin Ming. 64212761Sjkim 65212761Sjkim---------------------------------------- 66210976Sjkim06 August 2010. Summary of changes for version 20100806: 67210976Sjkim 68210976Sjkim1) ACPI CA Core Subsystem: 69210976Sjkim 70210976SjkimDesigned and implemented a new host interface to the _OSI support code. This 71210976Sjkimwill allow the host to dynamically add or remove multiple _OSI strings, as 72210976Sjkimwell as install an optional handler that is called for each _OSI invocation. 73210976SjkimAlso added a new AML debugger command, 'osi' to display and modify the global 74210976Sjkim_OSI string table, and test support in the AcpiExec utility. See the ACPICA 75210976Sjkimreference manual for full details. Lin Ming, Bob Moore. ACPICA BZ 836. 76210976SjkimNew Functions: 77210976Sjkim AcpiInstallInterface - Add an _OSI string. 78210976Sjkim AcpiRemoveInterface - Delete an _OSI string. 79210976Sjkim AcpiInstallInterfaceHandler - Install optional _OSI handler. 80210976SjkimObsolete Functions: 81210976Sjkim AcpiOsValidateInterface - no longer used. 82210976SjkimNew Files: 83210976Sjkim source/components/utilities/utosi.c 84210976Sjkim 85210976SjkimRe-introduced the support to enable multi-byte transfers for Embedded 86210976SjkimController (EC) operation regions. A reported problem was found to be a bug 87210976Sjkimin the host OS, not in the multi-byte support. Previously, the maximum data 88210976Sjkimsize passed to the EC operation region handler was a single byte. There are 89210976Sjkimoften EC Fields larger than one byte that need to be transferred, and it is 90210976Sjkimuseful for the EC driver to lock these as a single transaction. This change 91210976Sjkimenables single transfers larger than 8 bits. This effectively changes the 92210976Sjkimaccess to the EC space from ByteAcc to AnyAcc, and will probably require 93210976Sjkimchanges to the host OS Embedded Controller driver to enable 16/32/64/256-bit 94210976Sjkimtransfers in addition to 8-bit transfers. Alexey Starikovskiy, Lin Ming. 95210976Sjkim 96210976SjkimFixed a problem with the prototype for AcpiOsReadPciConfiguration. The 97210976Sjkimprototype in acpiosxf.h had the output value pointer as a (void *). 98210976SjkimIt should be a (UINT64 *). This may affect some host OSL code. 99210976Sjkim 100210976SjkimFixed a couple problems with the recently modified Linux makefiles for iASL 101210976Sjkimand AcpiExec. These new makefiles place the generated object files in the 102210976Sjkimlocal directory so that there can be no collisions between the files that are 103210976Sjkimshared between them that are compiled with different options. 104210976Sjkim 105210976SjkimExample Code and Data Size: These are the sizes for the OS-independent 106210976Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 107210976Sjkimdebug version of the code includes the debug output trace mechanism and has a 108210976Sjkimmuch larger code and data size. 109210976Sjkim 110210976Sjkim Previous Release: 111210976Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 112210976Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 113210976Sjkim Current Release: 114210976Sjkim Non-Debug Version: 89.1K Code, 19.0K Data, 108.1K Total 115210976Sjkim Debug Version: 165.1K Code, 51.9K Data, 217.0K Total 116210976Sjkim 117210976Sjkim2) iASL Compiler/Disassembler and Tools: 118210976Sjkim 119210976SjkimiASL/Disassembler: Added a new option (-da, "disassemble all") to load the 120210976Sjkimnamespace from and disassemble an entire group of AML files. Useful for 121210976Sjkimloading all of the AML tables for a given machine (DSDT, SSDT1...SSDTn) and 122210976Sjkimdisassembling with one simple command. ACPICA BZ 865. Lin Ming. 123210976Sjkim 124210976SjkimiASL: Allow multiple invocations of -e option. This change allows multiple 125210976Sjkimuses of -e on the command line: "-e ssdt1.dat -e ssdt2.dat". ACPICA BZ 834. 126210976SjkimLin Ming. 127210976Sjkim 128210976Sjkim---------------------------------------- 129209746Sjkim02 July 2010. Summary of changes for version 20100702: 130209746Sjkim 131209746Sjkim1) ACPI CA Core Subsystem: 132209746Sjkim 133209746SjkimImplemented several updates to the recently added GPE reference count 134209746Sjkimsupport. The model for "wake" GPEs is changing to give the host OS complete 135209746Sjkimcontrol of these GPEs. Eventually, the ACPICA core will not execute any _PRW 136209746Sjkimmethods, since the host already must execute them. Also, additional changes 137209746Sjkimwere made to help ensure that the reference counts are kept in proper 138209746Sjkimsynchronization with reality. Rafael J. Wysocki. 139209746Sjkim 140209746Sjkim1) Ensure that GPEs are not enabled twice during initialization. 141209746Sjkim2) Ensure that GPE enable masks stay in sync with the reference count. 142209746Sjkim3) Do not inadvertently enable GPEs when writing GPE registers. 143209746Sjkim4) Remove the internal wake reference counter and add new AcpiGpeWakeup 144209746Sjkiminterface. This interface will set or clear individual GPEs for wakeup. 145209746Sjkim5) Remove GpeType argument from AcpiEnable and AcpiDisable. These interfaces 146209746Sjkimare now used for "runtime" GPEs only. 147209746Sjkim 148209746SjkimChanged the behavior of the GPE install/remove handler interfaces. The GPE is 149209746Sjkimno longer disabled during this process, as it was found to cause problems on 150209746Sjkimsome machines. Rafael J. Wysocki. 151209746Sjkim 152209746SjkimReverted a change introduced in version 20100528 to enable Embedded 153209746SjkimController multi-byte transfers. This change was found to cause problems with 154209746SjkimIndex Fields and possibly Bank Fields. It will be reintroduced when these 155209746Sjkimproblems have been resolved. 156209746Sjkim 157209746SjkimFixed a problem with references to Alias objects within Package Objects. A 158209746Sjkimreference to an Alias within the definition of a Package was not always 159209746Sjkimresolved properly. Aliases to objects like Processors, Thermal zones, etc. 160209746Sjkimwere resolved to the actual object instead of a reference to the object as it 161209746Sjkimshould be. Package objects are only allowed to contain integer, string, 162209746Sjkimbuffer, package, and reference objects. Redhat bugzilla 608648. 163209746Sjkim 164209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 165209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 166209746Sjkimdebug version of the code includes the debug output trace mechanism and has a 167209746Sjkimmuch larger code and data size. 168209746Sjkim 169209746Sjkim Previous Release: 170209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 171209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 172209746Sjkim Current Release: 173209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 174209746Sjkim Debug Version: 164.0K Code, 51.5K Data, 215.5K Total 175209746Sjkim 176209746Sjkim2) iASL Compiler/Disassembler and Tools: 177209746Sjkim 178209746SjkimiASL: Implemented a new compiler subsystem to allow definition and 179209746Sjkimcompilation of the non-AML ACPI tables such as FADT, MADT, SRAT, etc. These 180209746Sjkimare called "ACPI Data Tables", and the new compiler is the "Data Table 181209746SjkimCompiler". This compiler is intended to simplify the existing error-prone 182209746Sjkimprocess of creating these tables for the BIOS, as well as allowing the 183209746Sjkimdisassembly, modification, recompilation, and override of existing ACPI data 184209746Sjkimtables. See the iASL User Guide for detailed information. 185209746Sjkim 186209746SjkimiASL: Implemented a new Template Generator option in support of the new Data 187209746SjkimTable Compiler. This option will create examples of all known ACPI tables 188209746Sjkimthat can be used as the basis for table development. See the iASL 189209746Sjkimdocumentation and the -T option. 190209746Sjkim 191209746SjkimDisassembler and headers: Added support for the WDDT ACPI table (Watchdog 192209746SjkimDescriptor Table). 193209746Sjkim 194209746SjkimUpdated the Linux makefiles for iASL and AcpiExec to place the generated 195209746Sjkimobject files in the local directory so that there can be no collisions 196209746Sjkimbetween the shared files between them that are generated with different 197209746Sjkimoptions. 198209746Sjkim 199209746SjkimAdded support for Mac OS X in the Unix OSL used for iASL and AcpiExec. Use 200209746Sjkimthe #define __APPLE__ to enable this support. 201209746Sjkim 202209746Sjkim---------------------------------------- 203209746Sjkim28 May 2010. Summary of changes for version 20100528: 204209746Sjkim 205209746SjkimNote: The ACPI 4.0a specification was released on April 5, 2010 and is 206209746Sjkimavailable at www.acpi.info. This is primarily an errata release. 207209746Sjkim 208209746Sjkim1) ACPI CA Core Subsystem: 209209746Sjkim 210209746SjkimUndefined ACPI tables: We are looking for the definitions for the following 211209746SjkimACPI tables that have been seen in the field: ATKG, IEIT, GSCI. 212209746Sjkim 213209746SjkimImplemented support to enable multi-byte transfers for Embedded Controller 214209746Sjkim(EC) operation regions. Previously, the maximum data size passed to the EC 215209746Sjkimoperation region handler was a single byte. There are often EC Fields larger 216209746Sjkimthan one byte that need to be transferred, and it is useful for the EC driver 217209746Sjkimto lock these as a single transaction. This change enables single transfers 218209746Sjkimlarger than 8 bits. This effectively changes the access to the EC space from 219209746SjkimByteAcc to AnyAcc, and will probably require changes to the host OS Embedded 220209746SjkimController driver to enable 16/32/64/256-bit transfers in addition to 8-bit 221209746Sjkimtransfers. Alexey Starikovskiy, Lin Ming 222209746Sjkim 223209746SjkimImplemented a performance enhancement for namespace search and access. This 224209746Sjkimchange enhances the performance of namespace searches and walks by adding a 225209746Sjkimbackpointer to the parent in each namespace node. On large namespaces, this 226209746Sjkimchange can improve overall ACPI performance by up to 9X. Adding a pointer to 227209746Sjkimeach namespace node increases the overall size of the internal namespace by 228209746Sjkimabout 5%, since each namespace entry usually consists of both a namespace 229209746Sjkimnode and an ACPI operand object. However, this is the first growth of the 230209746Sjkimnamespace in ten years. ACPICA bugzilla 817. Alexey Starikovskiy. 231209746Sjkim 232209746SjkimImplemented a performance optimization that reduces the number of namespace 233209746Sjkimwalks. On control method exit, only walk the namespace if the method is known 234209746Sjkimto have created namespace objects outside of its local scope. Previously, the 235209746Sjkimentire namespace was traversed on each control method exit. This change can 236209746Sjkimimprove overall ACPI performance by up to 3X. Alexey Starikovskiy, Bob Moore. 237209746Sjkim 238209746SjkimAdded support to truncate I/O addresses to 16 bits for Windows compatibility. 239209746SjkimSome ASL code has been seen in the field that inadvertently has bits set 240209746Sjkimabove bit 15. This feature is optional and is enabled if the BIOS requests 241209746Sjkimany Windows OSI strings. It can also be enabled by the host OS. Matthew 242209746SjkimGarrett, Bob Moore. 243209746Sjkim 244209746SjkimAdded support to limit the maximum time for the ASL Sleep() operator. To 245209746Sjkimprevent accidental deep sleeps, limit the maximum time that Sleep() will 246209746Sjkimactually sleep. Configurable, the default maximum is two seconds. ACPICA 247209746Sjkimbugzilla 854. 248209746Sjkim 249209746SjkimAdded run-time validation support for the _WDG and_WED Microsoft predefined 250209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 251209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 252209746Sjkim 253209746SjkimExpanded all statistic counters used during namespace and device 254209746Sjkiminitialization from 16 to 32 bits in order to support very large namespaces. 255209746Sjkim 256209746SjkimReplaced all instances of %d in printf format specifiers with %u since nearly 257209746Sjkimall integers in ACPICA are unsigned. 258209746Sjkim 259209746SjkimFixed the exception namestring for AE_WAKE_ONLY_GPE. Was incorrectly returned 260209746Sjkimas AE_NO_HANDLER. 261209746Sjkim 262209746SjkimExample Code and Data Size: These are the sizes for the OS-independent 263209746Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 264209746Sjkimdebug version of the code includes the debug output trace mechanism and has a 265209746Sjkimmuch larger code and data size. 266209746Sjkim 267209746Sjkim Previous Release: 268209746Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 269209746Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 270209746Sjkim Current Release: 271209746Sjkim Non-Debug Version: 88.3K Code, 18.8K Data, 107.1K Total 272209746Sjkim Debug Version: 164.1K Code, 51.5K Data, 215.6K Total 273209746Sjkim 274209746Sjkim2) iASL Compiler/Disassembler and Tools: 275209746Sjkim 276209746SjkimiASL: Added compiler support for the _WDG and_WED Microsoft predefined 277209746Sjkimmethods. These objects are defined by "Windows Instrumentation", and are not 278209746Sjkimpart of the ACPI spec. ACPICA BZ 860. 279209746Sjkim 280209746SjkimAcpiExec: added option to disable the memory tracking mechanism. The -dt 281209746Sjkimoption will disable the tracking mechanism, which improves performance 282209746Sjkimconsiderably. 283209746Sjkim 284209746SjkimAcpiExec: Restructured the command line options into -d (disable) and -e 285209746Sjkim(enable) options. 286209746Sjkim 287209746Sjkim---------------------------------------- 288207344Sjkim28 April 2010. Summary of changes for version 20100428: 289207344Sjkim 290207344Sjkim1) ACPI CA Core Subsystem: 291207344Sjkim 292207344SjkimImplemented GPE support for dynamically loaded ACPI tables. For all GPEs, 293207344Sjkimincluding FADT-based and GPE Block Devices, execute any _PRW methods in the 294207344Sjkimnew table, and process any _Lxx/_Exx GPE methods in the new table. Any 295207344Sjkimruntime GPE that is referenced by an _Lxx/_Exx method in the new table is 296207344Sjkimimmediately enabled. Handles the FADT-defined GPEs as well as GPE Block 297207344SjkimDevices. Provides compatibility with other ACPI implementations. Two new 298207344Sjkimfiles added, evgpeinit.c and evgpeutil.c. ACPICA BZ 833. Lin Ming, Bob Moore. 299207344Sjkim 300207344SjkimFixed a regression introduced in version 20100331 within the table manager 301207344Sjkimwhere initial table loading could fail. This was introduced in the fix for 302207344SjkimAcpiReallocateRootTable. Also, renamed some of fields in the table manager 303207344Sjkimdata structures to clarify their meaning and use. 304207344Sjkim 305207344SjkimFixed a possible allocation overrun during internal object copy in 306207344SjkimAcpiUtCopySimpleObject. The original code did not correctly handle the case 307207344Sjkimwhere the object to be copied was a namespace node. Lin Ming. ACPICA BZ 847. 308207344Sjkim 309207344SjkimUpdated the allocation dump routine, AcpiUtDumpAllocation and fixed a 310207344Sjkimpossible access beyond end-of-allocation. Also, now fully validate descriptor 311207344Sjkim(size and type) before output. Lin Ming, Bob Moore. ACPICA BZ 847 312207344Sjkim 313207344SjkimExample Code and Data Size: These are the sizes for the OS-independent 314207344Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 315207344Sjkimdebug version of the code includes the debug output trace mechanism and has a 316207344Sjkimmuch larger code and data size. 317207344Sjkim 318207344Sjkim Previous Release: 319207344Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 320207344Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 321207344Sjkim Current Release: 322207344Sjkim Non-Debug Version: 88.4K Code, 18.8K Data, 107.2K Total 323207344Sjkim Debug Version: 164.2K Code, 51.5K Data, 215.7K Total 324207344Sjkim 325207344Sjkim2) iASL Compiler/Disassembler and Tools: 326207344Sjkim 327207344SjkimiASL: Implemented Min/Max/Len/Gran validation for address resource 328207344Sjkimdescriptors. This change implements validation for the address fields that 329207344Sjkimare common to all address-type resource descriptors. These checks are 330207344Sjkimimplemented: Checks for valid Min/Max, length within the Min/Max window, 331207344Sjkimvalid granularity, Min/Max a multiple of granularity, and _MIF/_MAF as per 332207344Sjkimtable 6-40 in the ACPI 4.0a specification. Also split the large aslrestype1.c 333207344Sjkimand aslrestype2.c files into five new files. ACPICA BZ 840. 334207344Sjkim 335207344SjkimiASL: Added support for the _Wxx predefined names. This support was missing 336207344Sjkimand these names were not recognized by the compiler as valid predefined 337207344Sjkimnames. ACPICA BZ 851. 338207344Sjkim 339207344SjkimiASL: Added an error for all predefined names that are defined to return no 340207344Sjkimvalue and thus must be implemented as Control Methods. These include all of 341207344Sjkimthe _Lxx, _Exx, _Wxx, and _Qxx names, as well as some other miscellaneous 342207344Sjkimnames such as _DIS, _INI, _IRC, _OFF, _ON, and _PSx. ACPICA BZ 850, 856. 343207344Sjkim 344207344SjkimiASL: Implemented the -ts option to emit hex AML data in ASL format, as an 345207344SjkimASL Buffer. Allows ACPI tables to be easily included within ASL files, to be 346207344Sjkimdynamically loaded via the Load() operator. Also cleaned up output for the - 347207344Sjkimta and -tc options. ACPICA BZ 853. 348207344Sjkim 349207344SjkimTests: Added a new file with examples of extended iASL error checking. 350207344SjkimDemonstrates the advanced error checking ability of the iASL compiler. 351207344SjkimAvailable at tests/misc/badcode.asl. 352207344Sjkim 353207344Sjkim---------------------------------------- 354206117Sjkim31 March 2010. Summary of changes for version 20100331: 355206117Sjkim 356206117Sjkim1) ACPI CA Core Subsystem: 357206117Sjkim 358206117SjkimCompleted a major update for the GPE support in order to improve support for 359206117Sjkimshared GPEs and to simplify both host OS and ACPICA code. Added a reference 360206117Sjkimcount mechanism to support shared GPEs that require multiple device drivers. 361206117SjkimSeveral external interfaces have changed. One external interface has been 362206117Sjkimremoved. One new external interface was added. Most of the GPE external 363206117Sjkiminterfaces now use the GPE spinlock instead of the events mutex (and the 364206117SjkimFlags parameter for many GPE interfaces has been removed.) See the updated 365206117SjkimACPICA Programmer Reference for details. Matthew Garrett, Bob Moore, Rafael 366206117SjkimWysocki. ACPICA BZ 831. 367206117Sjkim 368206117SjkimChanged: 369206117Sjkim AcpiEnableGpe, AcpiDisableGpe, AcpiClearGpe, AcpiGetGpeStatus 370206117SjkimRemoved: 371206117Sjkim AcpiSetGpeType 372206117SjkimNew: 373206117Sjkim AcpiSetGpe 374206117Sjkim 375206117SjkimImplemented write support for DataTable operation regions. These regions are 376206117Sjkimdefined via the DataTableRegion() operator. Previously, only read support was 377206117Sjkimimplemented. The ACPI specification allows DataTableRegions to be read/write, 378206117Sjkimhowever. 379206117Sjkim 380206117SjkimImplemented a new subsystem option to force a copy of the DSDT to local 381206117Sjkimmemory. Optionally copy the entire DSDT to local memory (instead of simply 382206117Sjkimmapping it.) There are some (albeit very rare) BIOSs that corrupt or replace 383206117Sjkimthe original DSDT, creating the need for this option. Default is FALSE, do 384206117Sjkimnot copy the DSDT. 385206117Sjkim 386206117SjkimImplemented detection of a corrupted or replaced DSDT. This change adds 387206117Sjkimsupport to detect a DSDT that has been corrupted and/or replaced from outside 388206117Sjkimthe OS (by firmware). This is typically catastrophic for the system, but has 389206117Sjkimbeen seen on some machines. Once this problem has been detected, the DSDT 390206117Sjkimcopy option can be enabled via system configuration. Lin Ming, Bob Moore. 391206117Sjkim 392206117SjkimFixed two problems with AcpiReallocateRootTable during the root table copy. 393206117SjkimWhen copying the root table to the new allocation, the length used was 394206117Sjkimincorrect. The new size was used instead of the current table size, meaning 395206117Sjkimtoo much data was copied. Also, the count of available slots for ACPI tables 396206117Sjkimwas not set correctly. Alexey Starikovskiy, Bob Moore. 397206117Sjkim 398206117SjkimExample Code and Data Size: These are the sizes for the OS-independent 399206117Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 400206117Sjkimdebug version of the code includes the debug output trace mechanism and has a 401206117Sjkimmuch larger code and data size. 402206117Sjkim 403206117Sjkim Previous Release: 404206117Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 405206117Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 406206117Sjkim Current Release: 407206117Sjkim Non-Debug Version: 87.9K Code, 18.6K Data, 106.5K Total 408206117Sjkim Debug Version: 163.5K Code, 51.3K Data, 214.8K Total 409206117Sjkim 410206117Sjkim2) iASL Compiler/Disassembler and Tools: 411206117Sjkim 412206117SjkimiASL: Implement limited typechecking for values returned from predefined 413206117Sjkimcontrol methods. The type of any returned static (unnamed) object is now 414206117Sjkimvalidated. For example, Return(1). ACPICA BZ 786. 415206117Sjkim 416206117SjkimiASL: Fixed a predefined name object verification regression. Fixes a problem 417206117Sjkimintroduced in version 20100304. An error is incorrectly generated if a 418206117Sjkimpredefined name is declared as a static named object with a value defined 419206117Sjkimusing the keywords "Zero", "One", or "Ones". Lin Ming. 420206117Sjkim 421206117SjkimiASL: Added Windows 7 support for the -g option (get local ACPI tables) by 422206117Sjkimreducing the requested registry access rights. ACPICA BZ 842. 423206117Sjkim 424206117SjkimDisassembler: fixed a possible fault when generating External() statements. 425206117SjkimIntroduced in commit ae7d6fd: Properly handle externals with parent-prefix 426206117Sjkim(carat). Fixes a string length allocation calculation. Lin Ming. 427206117Sjkim 428206117Sjkim---------------------------------------- 429204773Sjkim04 March 2010. Summary of changes for version 20100304: 430204773Sjkim 431204773Sjkim1) ACPI CA Core Subsystem: 432204773Sjkim 433204773SjkimFixed a possible problem with the AML Mutex handling function 434204773SjkimAcpiExReleaseMutex where the function could fault under the very rare 435204773Sjkimcondition when the interpreter has blocked, the interpreter lock is released, 436204773Sjkimthe interpreter is then reentered via the same thread, and attempts to 437204773Sjkimacquire an AML mutex that was previously acquired. FreeBSD report 140979. Lin 438204773SjkimMing. 439204773Sjkim 440204773SjkimImplemented additional configuration support for the AML "Debug Object". 441204773SjkimOutput from the debug object can now be enabled via a global variable, 442204773SjkimAcpiGbl_EnableAmlDebugObject. This will assist with remote machine debugging. 443204773SjkimThis debug output is now available in the release version of ACPICA instead 444204773Sjkimof just the debug version. Also, the entire debug output module can now be 445204773Sjkimconfigured out of the ACPICA build if desired. One new file added, 446204773Sjkimexecuter/exdebug.c. Lin Ming, Bob Moore. 447204773Sjkim 448204773SjkimAdded header support for the ACPI MCHI table (Management Controller Host 449204773SjkimInterface Table). This table was added in ACPI 4.0, but the defining document 450204773Sjkimhas only recently become available. 451204773Sjkim 452204773SjkimStandardized output of integer values for ACPICA warnings/errors. Always use 453204773Sjkim0x prefix for hex output, always use %u for unsigned integer decimal output. 454204773SjkimAffects ACPI_INFO, ACPI_ERROR, ACPI_EXCEPTION, and ACPI_WARNING (about 400 455204773Sjkiminvocations.) These invocations were converted from the original 456204773SjkimACPI_DEBUG_PRINT invocations and were not consistent. ACPICA BZ 835. 457204773Sjkim 458204773SjkimExample Code and Data Size: These are the sizes for the OS-independent 459204773Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 460204773Sjkimdebug version of the code includes the debug output trace mechanism and has a 461204773Sjkimmuch larger code and data size. 462204773Sjkim 463204773Sjkim Previous Release: 464204773Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 465204773Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 466204773Sjkim Current Release: 467204773Sjkim Non-Debug Version: 87.5K Code, 18.4K Data, 105.9K Total 468204773Sjkim Debug Version: 163.4K Code, 51.1K Data, 214.5K Total 469204773Sjkim 470204773Sjkim2) iASL Compiler/Disassembler and Tools: 471204773Sjkim 472204773SjkimiASL: Implemented typechecking support for static (non-control method) 473204773Sjkimpredefined named objects that are declared with the Name() operator. For 474204773Sjkimexample, the type of this object is now validated to be of type Integer: 475204773SjkimName(_BBN, 1). This change migrates the compiler to using the core predefined 476204773Sjkimname table instead of maintaining a local version. Added a new file, 477204773Sjkimaslpredef.c. ACPICA BZ 832. 478204773Sjkim 479204773SjkimDisassembler: Added support for the ACPI 4.0 MCHI table. 480204773Sjkim 481204773Sjkim---------------------------------------- 482202771Sjkim21 January 2010. Summary of changes for version 20100121: 483202771Sjkim 484202771Sjkim1) ACPI CA Core Subsystem: 485202771Sjkim 486202771SjkimAdded the 2010 copyright to all module headers and signons. This affects 487202771Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, the 488202771Sjkimtools/utilities, and the test suites. 489202771Sjkim 490202771SjkimImplemented a change to the AcpiGetDevices interface to eliminate unnecessary 491202771Sjkiminvocations of the _STA method. In the case where a specific _HID is 492202771Sjkimrequested, do not run _STA until a _HID match is found. This eliminates 493202771Sjkimpotentially dozens of _STA calls during a search for a particular device/HID, 494202771Sjkimwhich in turn can improve boot times. ACPICA BZ 828. Lin Ming. 495202771Sjkim 496202771SjkimImplemented an additional repair for predefined method return values. Attempt 497202771Sjkimto repair unexpected NULL elements within returned Package objects. Create an 498202771SjkimInteger of value zero, a NULL String, or a zero-length Buffer as appropriate. 499202771SjkimACPICA BZ 818. Lin Ming, Bob Moore. 500202771Sjkim 501202771SjkimRemoved the obsolete ACPI_INTEGER data type. This type was introduced as the 502202771Sjkimcode was migrated from ACPI 1.0 (with 32-bit AML integers) to ACPI 2.0 (with 503202771Sjkim64-bit AML integers). It is now obsolete and this change removes it from the 504202771SjkimACPICA code base, replaced by UINT64. The original typedef has been retained 505202771Sjkimfor now for compatibility with existing device driver code. ACPICA BZ 824. 506202771Sjkim 507202771SjkimRemoved the unused UINT32_STRUCT type, and the obsolete Integer64 field in 508202771Sjkimthe parse tree object. 509202771Sjkim 510202771SjkimAdded additional warning options for the gcc-4 generation. Updated the source 511202771Sjkimaccordingly. This includes some code restructuring to eliminate unreachable 512202771Sjkimcode, elimination of some gotos, elimination of unused return values, some 513202771Sjkimadditional casting, and removal of redundant declarations. 514202771Sjkim 515202771SjkimExample Code and Data Size: These are the sizes for the OS-independent 516202771Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 517202771Sjkimdebug version of the code includes the debug output trace mechanism and has a 518202771Sjkimmuch larger code and data size. 519202771Sjkim 520202771Sjkim Previous Release: 521202771Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 522202771Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 523202771Sjkim Current Release: 524202771Sjkim Non-Debug Version: 87.1K Code, 18.0K Data, 105.1K Total 525202771Sjkim Debug Version: 163.5K Code, 50.9K Data, 214.4K Total 526202771Sjkim 527202771Sjkim2) iASL Compiler/Disassembler and Tools: 528202771Sjkim 529202771SjkimNo functional changes for this release. 530202771Sjkim 531202771Sjkim---------------------------------------- 532200553Sjkim14 December 2009. Summary of changes for version 20091214: 533200553Sjkim 534200553Sjkim1) ACPI CA Core Subsystem: 535200553Sjkim 536200553SjkimEnhanced automatic data type conversions for predefined name repairs. This 537200553Sjkimchange expands the automatic repairs/conversions for predefined name return 538200553Sjkimvalues to make Integers, Strings, and Buffers fully interchangeable. Also, a 539200553SjkimBuffer can be converted to a Package of Integers if necessary. The nsrepair.c 540200553Sjkimmodule was completely restructured. Lin Ming, Bob Moore. 541200553Sjkim 542200553SjkimImplemented automatic removal of null package elements during predefined name 543200553Sjkimrepairs. This change will automatically remove embedded and trailing NULL 544200553Sjkimpackage elements from returned package objects that are defined to contain a 545200553Sjkimvariable number of sub-packages. The driver is then presented with a package 546200553Sjkimwith no null elements to deal with. ACPICA BZ 819. 547200553Sjkim 548200553SjkimImplemented a repair for the predefined _FDE and _GTM names. The expected 549200553Sjkimreturn value for both names is a Buffer of 5 DWORDs. This repair fixes two 550200553Sjkimpossible problems (both seen in the field), where a package of integers is 551200553Sjkimreturned, or a buffer of BYTEs is returned. With assistance from Jung-uk Kim. 552200553Sjkim 553200553SjkimImplemented additional module-level code support. This change will properly 554200553Sjkimexecute module-level code that is not at the root of the namespace (under a 555200553SjkimDevice object, etc.). Now executes the code within the current scope instead 556200553Sjkimof the root. ACPICA BZ 762. Lin Ming. 557200553Sjkim 558200553SjkimFixed possible mutex acquisition errors when running _REG methods. Fixes a 559200553Sjkimproblem where mutex errors can occur when running a _REG method that is in 560200553Sjkimthe same scope as a method-defined operation region or an operation region 561200553Sjkimunder a module-level IF block. This type of code is rare, so the problem has 562200553Sjkimnot been seen before. ACPICA BZ 826. Lin Ming, Bob Moore. 563200553Sjkim 564200553SjkimFixed a possible memory leak during module-level code execution. An object 565200553Sjkimcould be leaked for each block of executed module-level code if the 566200553Sjkiminterpreter slack mode is enabled This change deletes any implicitly returned 567200553Sjkimobject from the module-level code block. Lin Ming. 568200553Sjkim 569200553SjkimRemoved messages for successful predefined repair(s). The repair mechanism 570200553Sjkimwas considered too wordy. Now, messages are only unconditionally emitted if 571200553Sjkimthe return object cannot be repaired. Existing messages for successful 572200553Sjkimrepairs were converted to ACPI_DEBUG_PRINT messages for now. ACPICA BZ 827. 573200553Sjkim 574200553SjkimExample Code and Data Size: These are the sizes for the OS-independent 575200553Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 576200553Sjkimdebug version of the code includes the debug output trace mechanism and has a 577200553Sjkimmuch larger code and data size. 578200553Sjkim 579200553Sjkim Previous Release: 580200553Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 581200553Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 582200553Sjkim Current Release: 583200553Sjkim Non-Debug Version: 87.0K Code, 18.0K Data, 105.0K Total 584200553Sjkim Debug Version: 163.4K Code, 50.8K Data, 214.2K Total 585200553Sjkim 586200553Sjkim2) iASL Compiler/Disassembler and Tools: 587200553Sjkim 588200553SjkimiASL: Fixed a regression introduced in 20091112 where intermediate .SRC files 589200553Sjkimwere no longer automatically removed at the termination of the compile. 590200553Sjkim 591200553Sjkimacpiexec: Implemented the -f option to specify default region fill value. 592200553SjkimThis option specifies the value used to initialize buffers that simulate 593200553Sjkimoperation regions. Default value is zero. Useful for debugging problems that 594200553Sjkimdepend on a specific initial value for a region or field. 595200553Sjkim 596200553Sjkim---------------------------------------- 597199337Sjkim12 November 2009. Summary of changes for version 20091112: 598199337Sjkim 599199337Sjkim1) ACPI CA Core Subsystem: 600199337Sjkim 601199337SjkimImplemented a post-order callback to AcpiWalkNamespace. The existing 602199337Sjkiminterface only has a pre-order callback. This change adds an additional 603199337Sjkimparameter for a post-order callback which will be more useful for bus scans. 604199337SjkimACPICA BZ 779. Lin Ming. Updated the ACPICA Programmer Reference. 605199337Sjkim 606199337SjkimModified the behavior of the operation region memory mapping cache for 607199337SjkimSystemMemory. Ensure that the memory mappings created for operation regions 608199337Sjkimdo not cross 4K page boundaries. Crossing a page boundary while mapping 609199337Sjkimregions can cause kernel warnings on some hosts if the pages have different 610199337Sjkimattributes. Such regions are probably BIOS bugs, and this is the workaround. 611199337SjkimLinux BZ 14445. Lin Ming. 612199337Sjkim 613199337SjkimImplemented an automatic repair for predefined methods that must return 614199337Sjkimsorted lists. This change will repair (by sorting) packages returned by _ALR, 615199337Sjkim_PSS, and _TSS. Drivers can now assume that the packages are correctly sorted 616199337Sjkimand do not contain NULL package elements. Adds one new file, 617199337Sjkimnamespace/nsrepair2.c. ACPICA BZ 784. Lin Ming, Bob Moore. 618199337Sjkim 619199337SjkimFixed a possible fault during predefined name validation if a return Package 620199337Sjkimobject contains NULL elements. Also adds a warning if a NULL element is 621199337Sjkimfollowed by any non-null elements. ACPICA BZ 813, 814. Future enhancement may 622199337Sjkiminclude repair or removal of all such NULL elements where possible. 623199337Sjkim 624199337SjkimImplemented additional module-level executable AML code support. This change 625199337Sjkimwill execute module-level code that is not at the root of the namespace 626199337Sjkim(under a Device object, etc.) at table load time. Module-level executable AML 627199337Sjkimcode has been illegal since ACPI 2.0. ACPICA BZ 762. Lin Ming. 628199337Sjkim 629199337SjkimImplemented a new internal function to create Integer objects. This function 630199337Sjkimsimplifies miscellaneous object creation code. ACPICA BZ 823. 631199337Sjkim 632199337SjkimReduced the severity of predefined repair messages, Warning to Info. Since 633199337Sjkimthe object was successfully repaired, a warning is too severe. Reduced to an 634199337Sjkiminfo message for now. These messages may eventually be changed to debug-only. 635199337SjkimACPICA BZ 812. 636199337Sjkim 637199337SjkimExample Code and Data Size: These are the sizes for the OS-independent 638199337Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 639199337Sjkimdebug version of the code includes the debug output trace mechanism and has a 640199337Sjkimmuch larger code and data size. 641199337Sjkim 642199337Sjkim Previous Release: 643199337Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 644199337Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 645199337Sjkim Current Release: 646199337Sjkim Non-Debug Version: 86.6K Code, 18.2K Data, 104.8K Total 647199337Sjkim Debug Version: 162.7K Code, 50.8K Data, 213.5K Total 648199337Sjkim 649199337Sjkim2) iASL Compiler/Disassembler and Tools: 650199337Sjkim 651199337SjkimiASL: Implemented Switch() with While(1) so that Break works correctly. This 652199337Sjkimchange correctly implements the Switch operator with a surrounding While(1) 653199337Sjkimso that the Break operator works as expected. ACPICA BZ 461. Lin Ming. 654199337Sjkim 655199337SjkimiASL: Added a message if a package initializer list is shorter than package 656199337Sjkimlength. Adds a new remark for a Package() declaration if an initializer list 657199337Sjkimexists, but is shorter than the declared length of the package. Although 658199337Sjkimtechnically legal, this is probably a coding error and it is seen in the 659199337Sjkimfield. ACPICA BZ 815. Lin Ming, Bob Moore. 660199337Sjkim 661199337SjkimiASL: Fixed a problem where the compiler could fault after the maximum number 662199337Sjkimof errors was reached (200). 663199337Sjkim 664199337Sjkimacpixtract: Fixed a possible warning for pointer cast if the compiler warning 665199337Sjkimlevel set very high. 666199337Sjkim 667199337Sjkim---------------------------------------- 668198237Sjkim13 October 2009. Summary of changes for version 20091013: 669197104Sjkim 670197104Sjkim1) ACPI CA Core Subsystem: 671197104Sjkim 672198237SjkimFixed a problem where an Operation Region _REG method could be executed more 673198237Sjkimthan once. If a custom address space handler is installed by the host before 674198237Sjkimthe "initialize operation regions" phase of the ACPICA initialization, any 675198237Sjkim_REG methods for that address space could be executed twice. This change 676198237Sjkimfixes the problem. ACPICA BZ 427. Lin Ming. 677198237Sjkim 678198237SjkimFixed a possible memory leak for the Scope() ASL operator. When the exact 679198237Sjkiminvocation of "Scope(\)" is executed (change scope to root), one internal 680198237Sjkimoperand object was leaked. Lin Ming. 681198237Sjkim 682198237SjkimImplemented a run-time repair for the _MAT predefined method. If the _MAT 683198237Sjkimreturn value is defined as a Field object in the AML, and the field 684198237Sjkimsize is less than or equal to the default width of an integer (32 or 64),_MAT 685198237Sjkimcan incorrectly return an Integer instead of a Buffer. ACPICA now 686198237Sjkimautomatically repairs this problem. ACPICA BZ 810. 687198237Sjkim 688198237SjkimImplemented a run-time repair for the _BIF and _BIX predefined methods. The 689198237Sjkim"OEM Information" field is often incorrectly returned as an Integer with 690198237Sjkimvalue zero if the field is not supported by the platform. This is due to an 691198237Sjkimambiguity in the ACPI specification. The field should always be a string. 692198237SjkimACPICA now automatically repairs this problem by returning a NULL string 693198237Sjkimwithin the returned Package. ACPICA BZ 807. 694198237Sjkim 695198237SjkimExample Code and Data Size: These are the sizes for the OS-independent 696198237Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 697198237Sjkimdebug version of the code includes the debug output trace mechanism and has a 698198237Sjkimmuch larger code and data size. 699198237Sjkim 700198237Sjkim Previous Release: 701198237Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 702198237Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 703198237Sjkim Current Release: 704198237Sjkim Non-Debug Version: 85.8K Code, 18.0K Data, 103.8K Total 705198237Sjkim Debug Version: 161.8K Code, 50.6K Data, 212.4K Total 706198237Sjkim 707198237Sjkim2) iASL Compiler/Disassembler and Tools: 708198237Sjkim 709198237SjkimDisassembler: Fixed a problem where references to external symbols that 710198237Sjkimcontained one or more parent-prefixes (carats) were not handled correctly, 711198237Sjkimpossibly causing a fault. ACPICA BZ 806. Lin Ming. 712198237Sjkim 713198237SjkimDisassembler: Restructured the code so that all functions that handle 714198237Sjkimexternal symbols are in a single module. One new file is added, 715198237Sjkimcommon/dmextern.c. 716198237Sjkim 717198237SjkimAML Debugger: Added a max count argument for the Batch command (which 718198237Sjkimexecutes multiple predefined methods within the namespace.) 719198237Sjkim 720198237SjkimiASL: Updated the compiler documentation (User Reference.) Available at 721198237Sjkimhttp://www.acpica.org/documentation/. ACPICA BZ 750. 722198237Sjkim 723198237SjkimAcpiXtract: Updated for Lint and other formatting changes. Close all open 724198237Sjkimfiles. 725198237Sjkim 726198237Sjkim---------------------------------------- 727198237Sjkim03 September 2009. Summary of changes for version 20090903: 728198237Sjkim 729198237Sjkim1) ACPI CA Core Subsystem: 730198237Sjkim 731197104SjkimFor Windows Vista compatibility, added the automatic execution of an _INI 732197104Sjkimmethod located at the namespace root (\_INI). This method is executed at 733197104Sjkimtable load time. This support is in addition to the automatic execution of 734197104Sjkim\_SB._INI. Lin Ming. 735197104Sjkim 736197104SjkimFixed a possible memory leak in the interpreter for AML package objects if 737197104Sjkimthe package initializer list is longer than the defined size of the package. 738197104SjkimThis apparently can only happen if the BIOS changes the package size on the 739197104Sjkimfly (seen in a _PSS object), as ASL compilers do not allow this. The 740197104Sjkiminterpreter will truncate the package to the defined size (and issue an error 741197104Sjkimmessage), but previously could leave the extra objects undeleted if they were 742197104Sjkimpre-created during the argument processing (such is the case if the package 743197104Sjkimconsists of a number of sub-packages as in the _PSS.) ACPICA BZ 805. 744197104Sjkim 745197104SjkimFixed a problem seen when a Buffer or String is stored to itself via ASL. 746197104SjkimThis has been reported in the field. Previously, ACPICA would zero out the 747197104Sjkimbuffer/string. Now, the operation is treated as a noop. Provides Windows 748197104Sjkimcompatibility. ACPICA BZ 803. Lin Ming. 749197104Sjkim 750197104SjkimRemoved an extraneous error message for ASL constructs of the form 751197104SjkimStore(LocalX,LocalX) when LocalX is uninitialized. These curious statements 752197104Sjkimare seen in many BIOSs and are once again treated as NOOPs and no error is 753197104Sjkimemitted when they are encountered. ACPICA BZ 785. 754197104Sjkim 755197104SjkimFixed an extraneous warning message if a _DSM reserved method returns a 756197104SjkimPackage object. _DSM can return any type of object, so validation on the 757197104Sjkimreturn type cannot be performed. ACPICA BZ 802. 758197104Sjkim 759197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 760197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 761197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 762197104Sjkimmuch larger code and data size. 763197104Sjkim 764197104Sjkim Previous Release: 765197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 766197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 767197104Sjkim Current Release: 768197104Sjkim Non-Debug Version: 85.6K Code, 18.0K Data, 103.6K Total 769197104Sjkim Debug Version: 161.7K Code, 50.9K Data, 212.6K Total 770197104Sjkim 771197104Sjkim2) iASL Compiler/Disassembler and Tools: 772197104Sjkim 773197104SjkimiASL: Fixed a problem with the use of the Alias operator and Resource 774197104SjkimTemplates. The correct alias is now constructed and no error is emitted. 775197104SjkimACPICA BZ 738. 776197104Sjkim 777197104SjkimiASL: Implemented the -I option to specify additional search directories for 778197104Sjkiminclude files. Allows multiple additional search paths for include files. 779197104SjkimDirectories are searched in the order specified on the command line (after 780197104Sjkimthe local directory is searched.) ACPICA BZ 800. 781197104Sjkim 782197104SjkimiASL: Fixed a problem where the full pathname for include files was not 783197104Sjkimemitted for warnings/errors. This caused the IDE support to not work 784197104Sjkimproperly. ACPICA BZ 765. 785197104Sjkim 786197104SjkimiASL: Implemented the -@ option to specify a Windows-style response file 787197104Sjkimcontaining additional command line options. ACPICA BZ 801. 788197104Sjkim 789197104SjkimAcpiExec: Added support to load multiple AML files simultaneously (such as a 790197104SjkimDSDT and multiple SSDTs). Also added support for wildcards within the AML 791197104Sjkimpathname. These features allow all machine tables to be easily loaded and 792197104Sjkimdebugged together. ACPICA BZ 804. 793197104Sjkim 794197104SjkimDisassembler: Added missing support for disassembly of HEST table Error Bank 795197104Sjkimsubtables. 796197104Sjkim 797197104Sjkim---------------------------------------- 798197104Sjkim30 July 2009. Summary of changes for version 20090730: 799197104Sjkim 800197104SjkimThe ACPI 4.0 implementation for ACPICA is complete with this release. 801197104Sjkim 802197104Sjkim1) ACPI CA Core Subsystem: 803197104Sjkim 804197104SjkimACPI 4.0: Added header file support for all new and changed ACPI tables. 805197104SjkimCompletely new tables are: IBFT, IVRS, MSCT, and WAET. Tables that are new 806197104Sjkimfor ACPI 4.0, but have previously been supported in ACPICA are: CPEP, BERT, 807197104SjkimEINJ, ERST, and HEST. Other newly supported tables are: UEFI and WDAT. There 808197104Sjkimhave been some ACPI 4.0 changes to other existing tables. Split the large 809197104Sjkimactbl1.h header into the existing actbl2.h header. ACPICA BZ 774. 810197104Sjkim 811197104SjkimACPI 4.0: Implemented predefined name validation for all new names. There are 812197104Sjkim31 new names in ACPI 4.0. The predefined validation module was split into two 813197104Sjkimfiles. The new file is namespace/nsrepair.c. ACPICA BZ 770. 814197104Sjkim 815197104SjkimImplemented support for so-called "module-level executable code". This is 816197104Sjkimexecutable AML code that exists outside of any control method and is intended 817197104Sjkimto be executed at table load time. Although illegal since ACPI 2.0, this type 818197104Sjkimof code still exists and is apparently still being created. Blocks of this 819197104Sjkimcode are now detected and executed as intended. Currently, the code blocks 820197104Sjkimmust exist under either an If, Else, or While construct; these are the 821197104Sjkimtypical cases seen in the field. ACPICA BZ 762. Lin Ming. 822197104Sjkim 823197104SjkimImplemented an automatic dynamic repair for predefined names that return 824197104Sjkimnested Package objects. This applies to predefined names that are defined to 825197104Sjkimreturn a variable-length Package of sub-packages. If the number of sub- 826197104Sjkimpackages is one, BIOS code is occasionally seen that creates a simple single 827197104Sjkimpackage with no sub-packages. This code attempts to fix the problem by 828197104Sjkimwrapping a new package object around the existing package. These methods can 829197104Sjkimbe repaired: _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, and _TSS. ACPICA BZ 830197104Sjkim790. 831197104Sjkim 832197104SjkimFixed a regression introduced in 20090625 for the AcpiGetDevices interface. 833197104SjkimThe _HID/_CID matching was broken and no longer matched IDs correctly. ACPICA 834197104SjkimBZ 793. 835197104Sjkim 836197104SjkimFixed a problem with AcpiReset where the reset would silently fail if the 837197104Sjkimregister was one of the protected I/O ports. AcpiReset now bypasses the port 838197104Sjkimvalidation mechanism. This may eventually be driven into the AcpiRead/Write 839197104Sjkiminterfaces. 840197104Sjkim 841197104SjkimFixed a regression related to the recent update of the AcpiRead/Write 842197104Sjkiminterfaces. A sleep/suspend could fail if the optional PM2 Control register 843197104Sjkimdoes not exist during an attempt to write the Bus Master Arbitration bit. 844197104Sjkim(However, some hosts already delete the code that writes this bit, and the 845197104Sjkimcode may in fact be obsolete at this date.) ACPICA BZ 799. 846197104Sjkim 847197104SjkimFixed a problem where AcpiTerminate could fault if inadvertently called twice 848197104Sjkimin succession. ACPICA BZ 795. 849197104Sjkim 850197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 851197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 852197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 853197104Sjkimmuch larger code and data size. 854197104Sjkim 855197104Sjkim Previous Release: 856197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 857197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 858197104Sjkim Current Release: 859197104Sjkim Non-Debug Version: 85.5K Code, 18.0K Data, 103.5K Total 860197104Sjkim Debug Version: 161.6K Code, 50.9K Data, 212.5K Total 861197104Sjkim 862197104Sjkim2) iASL Compiler/Disassembler and Tools: 863197104Sjkim 864197104SjkimACPI 4.0: Implemented disassembler support for all new ACPI tables and 865197104Sjkimchanges to existing tables. ACPICA BZ 775. 866197104Sjkim 867197104Sjkim---------------------------------------- 868197104Sjkim25 June 2009. Summary of changes for version 20090625: 869197104Sjkim 870197104SjkimThe ACPI 4.0 Specification was released on June 16 and is available at 871197104Sjkimwww.acpi.info. ACPICA implementation of ACPI 4.0 is underway and will 872197104Sjkimcontinue for the next few releases. 873197104Sjkim 874197104Sjkim1) ACPI CA Core Subsystem: 875197104Sjkim 876197104SjkimACPI 4.0: Implemented interpreter support for the IPMI operation region 877197104Sjkimaddress space. Includes support for bi-directional data buffers and an IPMI 878197104Sjkimaddress space handler (to be installed by an IPMI device driver.) ACPICA BZ 879197104Sjkim773. Lin Ming. 880197104Sjkim 881197104SjkimACPI 4.0: Added changes for existing ACPI tables - FACS and SRAT. Includes 882197104Sjkimsupport in both the header files and the disassembler. 883197104Sjkim 884197104SjkimCompleted a major update for the AcpiGetObjectInfo external interface. 885197104SjkimChanges include: 886197104Sjkim - Support for variable, unlimited length HID, UID, and CID strings. 887197104Sjkim - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.) 888197104Sjkim - Call the _SxW power methods on behalf of a device object. 889197104Sjkim - Determine if a device is a PCI root bridge. 890197104Sjkim - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO. 891197104SjkimThese changes will require an update to all callers of this interface. See 892197104Sjkimthe updated ACPICA Programmer Reference for details. One new source file has 893197104Sjkimbeen added - utilities/utids.c. ACPICA BZ 368, 780. 894197104Sjkim 895197104SjkimUpdated the AcpiRead and AcpiWrite external interfaces to support 64-bit 896197104Sjkimtransfers. The Value parameter has been extended from 32 bits to 64 bits in 897197104Sjkimorder to support new ACPI 4.0 tables. These changes will require an update to 898197104Sjkimall callers of these interfaces. See the ACPICA Programmer Reference for 899197104Sjkimdetails. ACPICA BZ 768. 900197104Sjkim 901197104SjkimFixed several problems with AcpiAttachData. The handler was not invoked when 902197104Sjkimthe host node was deleted. The data sub-object was not automatically deleted 903197104Sjkimwhen the host node was deleted. The interface to the handler had an unused 904197104Sjkimparameter, this was removed. ACPICA BZ 778. 905197104Sjkim 906197104SjkimEnhanced the function that dumps ACPI table headers. All non-printable 907197104Sjkimcharacters in the string fields are now replaced with '?' (Signature, OemId, 908197104SjkimOemTableId, and CompilerId.) ACPI tables with non-printable characters in 909197104Sjkimthese fields are occasionally seen in the field. ACPICA BZ 788. 910197104Sjkim 911197104SjkimFixed a problem with predefined method repair code where the code that 912197104Sjkimattempts to repair/convert an object of incorrect type is only executed on 913197104Sjkimthe first time the predefined method is called. The mechanism that disables 914197104Sjkimwarnings on subsequent calls was interfering with the repair mechanism. 915197104SjkimACPICA BZ 781. 916197104Sjkim 917197104SjkimFixed a possible memory leak in the predefined validation/repair code when a 918197104Sjkimbuffer is automatically converted to an expected string object. 919197104Sjkim 920197104SjkimRemoved obsolete 16-bit files from the distribution and from the current git 921197104Sjkimtree head. ACPICA BZ 776. 922197104Sjkim 923197104SjkimExample Code and Data Size: These are the sizes for the OS-independent 924197104Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 925197104Sjkimdebug version of the code includes the debug output trace mechanism and has a 926197104Sjkimmuch larger code and data size. 927197104Sjkim 928197104Sjkim Previous Release: 929197104Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 930197104Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 931197104Sjkim Current Release: 932197104Sjkim Non-Debug Version: 84.7K Code, 17.8K Data, 102.5K Total 933197104Sjkim Debug Version: 160.5K Code, 50.6K Data, 211.1K Total 934197104Sjkim 935197104Sjkim2) iASL Compiler/Disassembler and Tools: 936197104Sjkim 937197104SjkimACPI 4.0: iASL and Disassembler - implemented support for the new IPMI 938197104Sjkimoperation region keyword. ACPICA BZ 771, 772. Lin Ming. 939197104Sjkim 940197104SjkimACPI 4.0: iASL - implemented compile-time validation support for all new 941197104Sjkimpredefined names and control methods (31 total). ACPICA BZ 769. 942197104Sjkim 943197104Sjkim---------------------------------------- 944193267Sjkim21 May 2009. Summary of changes for version 20090521: 945193267Sjkim 946193267Sjkim1) ACPI CA Core Subsystem: 947193267Sjkim 948193267SjkimDisabled the preservation of the SCI enable bit in the PM1 control register. 949193267SjkimThe SCI enable bit (bit 0, SCI_EN) is defined by the ACPI specification to be 950193267Sjkima "preserved" bit - "OSPM always preserves this bit position", section 951193267Sjkim4.7.3.2.1. However, some machines fail if this bit is in fact preserved 952193267Sjkimbecause the bit needs to be explicitly set by the OS as a workaround. No 953193267Sjkimmachines fail if the bit is not preserved. Therefore, ACPICA no longer 954193267Sjkimattempts to preserve this bit. 955193267Sjkim 956193267SjkimFixed a problem in AcpiRsGetPciRoutingTableLength where an invalid or 957193267Sjkimincorrectly formed _PRT package could cause a fault. Added validation to 958193267Sjkimensure that each package element is actually a sub-package. 959193267Sjkim 960193267SjkimImplemented a new interface to install or override a single control method, 961193267SjkimAcpiInstallMethod. This interface is useful when debugging in order to repair 962193267Sjkiman existing method or to install a missing method without having to override 963193267Sjkimthe entire ACPI table. See the ACPICA Programmer Reference for use and 964193267Sjkimexamples. Lin Ming, Bob Moore. 965193267Sjkim 966193267SjkimFixed several reference count issues with the DdbHandle object that is 967193267Sjkimcreated from a Load or LoadTable operator. Prevent premature deletion of the 968193267Sjkimobject. Also, mark the object as invalid once the table has been unloaded. 969193267SjkimThis is needed because the handle itself may not be deleted after the table 970193267Sjkimunload, depending on whether it has been stored in a named object by the 971193267Sjkimcaller. Lin Ming. 972193267Sjkim 973193267SjkimFixed a problem with Mutex Sync Levels. Fixed a problem where if multiple 974193267Sjkimmutexes of the same sync level are acquired but then not released in strict 975193267Sjkimopposite order, the internally maintained Current Sync Level becomes confused 976193267Sjkimand can cause subsequent execution errors. ACPICA BZ 471. 977193267Sjkim 978193267SjkimChanged the allowable release order for ASL mutex objects. The ACPI 4.0 979193267Sjkimspecification has been changed to make the SyncLevel for mutex objects more 980193267Sjkimuseful. When releasing a mutex, the SyncLevel of the mutex must now be the 981193267Sjkimsame as the current sync level. This makes more sense than the previous rule 982193267Sjkim(SyncLevel less than or equal). This change updates the code to match the 983193267Sjkimspecification. 984193267Sjkim 985193267SjkimFixed a problem with the local version of the AcpiOsPurgeCache function. The 986193267Sjkim(local) cache must be locked during all cache object deletions. Andrew 987193267SjkimBaumann. 988193267Sjkim 989193267SjkimUpdated the Load operator to use operation region interfaces. This replaces 990193267Sjkimdirect memory mapping with region access calls. Now, all region accesses go 991193267Sjkimthrough the installed region handler as they should. 992193267Sjkim 993193267SjkimSimplified and optimized the NsGetNextNode function. Reduced parameter count 994193267Sjkimand reduced code for this frequently used function. 995193267Sjkim 996193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 997193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 998193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 999193267Sjkimmuch larger code and data size. 1000193267Sjkim 1001193267Sjkim Previous Release: 1002193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1003193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1004193267Sjkim Current Release: 1005193267Sjkim Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total 1006193267Sjkim Debug Version: 158.9K Code, 50.0K Data, 208.9K Total 1007193267Sjkim 1008193267Sjkim2) iASL Compiler/Disassembler and Tools: 1009193267Sjkim 1010193267SjkimDisassembler: Fixed some issues with DMAR, HEST, MADT tables. Some problems 1011193267Sjkimwith sub-table disassembly and handling invalid sub-tables. Attempt recovery 1012193267Sjkimafter an invalid sub-table ID. 1013193267Sjkim 1014193267Sjkim---------------------------------------- 1015193267Sjkim22 April 2009. Summary of changes for version 20090422: 1016193267Sjkim 1017193267Sjkim1) ACPI CA Core Subsystem: 1018193267Sjkim 1019193267SjkimFixed a compatibility issue with the recently released I/O port protection 1020193267Sjkimmechanism. For windows compatibility, 1) On a port protection violation, 1021193267Sjkimsimply ignore the request and do not return an exception (allow the control 1022193267Sjkimmethod to continue execution.) 2) If only part of the request overlaps a 1023193267Sjkimprotected port, read/write the individual ports that are not protected. Linux 1024193267SjkimBZ 13036. Lin Ming 1025193267Sjkim 1026193267SjkimEnhanced the execution of the ASL/AML BreakPoint operator so that it actually 1027193267Sjkimbreaks into the AML debugger if the debugger is present. This matches the 1028193267SjkimACPI-defined behavior. 1029193267Sjkim 1030193267SjkimFixed several possible warnings related to the use of the configurable 1031193267SjkimACPI_THREAD_ID. This type can now be configured as either an integer or a 1032193267Sjkimpointer with no warnings. Also fixes several warnings in printf-like 1033193267Sjkimstatements for the 64-bit build when the type is configured as a pointer. 1034193267SjkimACPICA BZ 766, 767. 1035193267Sjkim 1036193267SjkimFixed a number of possible warnings when compiling with gcc 4+ (depending on 1037193267Sjkimwarning options.) Examples include printf formats, aliasing, unused globals, 1038193267Sjkimmissing prototypes, missing switch default statements, use of non-ANSI 1039193267Sjkimlibrary functions, use of non-ANSI constructs. See generate/unix/Makefile for 1040193267Sjkima list of warning options used with gcc 3 and 4. ACPICA BZ 735. 1041193267Sjkim 1042193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1043193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1044193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1045193267Sjkimmuch larger code and data size. 1046193267Sjkim 1047193267Sjkim Previous Release: 1048193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1049193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1050193267Sjkim Current Release: 1051193267Sjkim Non-Debug Version: 82.8K Code, 17.5K Data, 100.3K Total 1052193267Sjkim Debug Version: 158.0K Code, 49.9K Data, 207.9K Total 1053193267Sjkim 1054193267Sjkim2) iASL Compiler/Disassembler and Tools: 1055193267Sjkim 1056193267SjkimiASL: Fixed a generation warning from Bison 2.3 and fixed several warnings on 1057193267Sjkimthe 64-bit build. 1058193267Sjkim 1059193267SjkimiASL: Fixed a problem where the Unix/Linux versions of the compiler could not 1060193267Sjkimcorrectly digest Windows/DOS formatted files (with CR/LF). 1061193267Sjkim 1062193267SjkimiASL: Added a new option for "quiet mode" (-va) that produces only the 1063193267Sjkimcompilation summary, not individual errors and warnings. Useful for large 1064193267Sjkimbatch compilations. 1065193267Sjkim 1066193267SjkimAcpiExec: Implemented a new option (-z) to enable a forced semaphore/mutex 1067193267Sjkimtimeout that can be used to detect hang conditions during execution of AML 1068193267Sjkimcode (includes both internal semaphores and AML-defined mutexes and events.) 1069193267Sjkim 1070193267SjkimAdded new makefiles for the generation of acpica in a generic unix-like 1071193267Sjkimenvironment. These makefiles are intended to generate the acpica tools and 1072193267Sjkimutilities from the original acpica git source tree structure. 1073193267Sjkim 1074193267SjkimTest Suites: Updated and cleaned up the documentation files. Updated the 1075193267Sjkimcopyrights to 2009, affecting all source files. Use the new version of iASL 1076193267Sjkimwith quiet mode. Increased the number of available semaphores in the Windows 1077193267SjkimOSL, allowing the aslts to execute fully on Windows. For the Unix OSL, added 1078193267Sjkiman alternate implementation of the semaphore timeout to allow aslts to 1079193267Sjkimexecute fully on Cygwin. 1080193267Sjkim 1081193267Sjkim---------------------------------------- 1082193267Sjkim20 March 2009. Summary of changes for version 20090320: 1083193267Sjkim 1084193267Sjkim1) ACPI CA Core Subsystem: 1085193267Sjkim 1086193267SjkimFixed a possible race condition between AcpiWalkNamespace and dynamic table 1087193267Sjkimunloads. Added a reader/writer locking mechanism to allow multiple concurrent 1088193267Sjkimnamespace walks (readers), but block a dynamic table unload until it can gain 1089193267Sjkimexclusive write access to the namespace. This fixes a problem where a table 1090193267Sjkimunload could (possibly catastrophically) delete the portion of the namespace 1091193267Sjkimthat is currently being examined by a walk. Adds a new file, utlock.c, that 1092193267Sjkimimplements the reader/writer lock mechanism. ACPICA BZ 749. 1093193267Sjkim 1094193267SjkimFixed a regression introduced in version 20090220 where a change to the FADT 1095193267Sjkimhandling could cause the ACPICA subsystem to access non-existent I/O ports. 1096193267Sjkim 1097193267SjkimModified the handling of FADT register and table (FACS/DSDT) addresses. The 1098193267SjkimFADT can contain both 32-bit and 64-bit versions of these addresses. 1099193267SjkimPreviously, the 64-bit versions were favored, meaning that if both 32 and 64 1100193267Sjkimversions were valid, but not equal, the 64-bit version was used. This was 1101193267Sjkimfound to cause some machines to fail. Now, in this case, the 32-bit version 1102193267Sjkimis used instead. This now matches the Windows behavior. 1103193267Sjkim 1104193267SjkimImplemented a new mechanism to protect certain I/O ports. Provides Microsoft 1105193267Sjkimcompatibility and protects the standard PC I/O ports from access via AML 1106193267Sjkimcode. Adds a new file, hwvalid.c 1107193267Sjkim 1108193267SjkimFixed a possible extraneous warning message from the FADT support. The 1109193267Sjkimmessage warns of a 32/64 length mismatch between the legacy and GAS 1110193267Sjkimdefinitions for a register. 1111193267Sjkim 1112193267SjkimRemoved the obsolete AcpiOsValidateAddress OSL interface. This interface is 1113193267Sjkimmade obsolete by the port protection mechanism above. It was previously used 1114193267Sjkimto validate the entire address range of an operation region, which could be 1115193267Sjkimincorrect if the range included illegal ports, but fields within the 1116193267Sjkimoperation region did not actually access those ports. Validation is now 1117193267Sjkimperformed on a per-field basis instead of the entire region. 1118193267Sjkim 1119193267SjkimModified the handling of the PM1 Status Register ignored bit (bit 11.) 1120193267SjkimIgnored bits must be "preserved" according to the ACPI spec. Usually, this 1121193267Sjkimmeans a read/modify/write when writing to the register. However, for status 1122193267Sjkimregisters, writing a one means clear the event. Writing a zero means preserve 1123193267Sjkimthe event (do not clear.) This behavior is clarified in the ACPI 4.0 spec, 1124193267Sjkimand the ACPICA code now simply always writes a zero to the ignored bit. 1125193267Sjkim 1126193267SjkimModified the handling of ignored bits for the PM1 A/B Control Registers. As 1127193267Sjkimper the ACPI specification, for the control registers, preserve 1128193267Sjkim(read/modify/write) all bits that are defined as either reserved or ignored. 1129193267Sjkim 1130193267SjkimUpdated the handling of write-only bits in the PM1 A/B Control Registers. 1131193267SjkimWhen reading the register, zero the write-only bits as per the ACPI spec. 1132193267SjkimACPICA BZ 443. Lin Ming. 1133193267Sjkim 1134193267SjkimRemoved "Linux" from the list of supported _OSI strings. Linux no longer 1135193267Sjkimwants to reply true to this request. The Windows strings are the only paths 1136193267Sjkimthrough the AML that are tested and known to work properly. 1137193267Sjkim 1138193267Sjkim Previous Release: 1139193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1140193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1141193267Sjkim Current Release: 1142193267Sjkim Non-Debug Version: 82.6K Code, 17.6K Data, 100.2K Total 1143193267Sjkim Debug Version: 157.7K Code, 49.9K Data, 207.6K Total 1144193267Sjkim 1145193267Sjkim2) iASL Compiler/Disassembler and Tools: 1146193267Sjkim 1147193267SjkimAcpiexec: Split the large aeexec.c file into two new files, aehandlers.c and 1148193267Sjkimaetables.c 1149193267Sjkim 1150193267Sjkim---------------------------------------- 1151193267Sjkim20 February 2009. Summary of changes for version 20090220: 1152193267Sjkim 1153193267Sjkim1) ACPI CA Core Subsystem: 1154193267Sjkim 1155193267SjkimOptimized the ACPI register locking. Removed locking for reads from the ACPI 1156193267Sjkimbit registers in PM1 Status, Enable, Control, and PM2 Control. The lock is 1157193267Sjkimnot required when reading the single-bit registers. The 1158193267SjkimAcpiGetRegisterUnlocked function is no longer needed and has been removed. 1159193267SjkimThis will improve performance for reads on these registers. ACPICA BZ 760. 1160193267Sjkim 1161193267SjkimFixed the parameter validation for AcpiRead/Write. Now return 1162193267SjkimAE_BAD_PARAMETER if the input register pointer is null, and AE_BAD_ADDRESS if 1163193267Sjkimthe register has an address of zero. Previously, these cases simply returned 1164193267SjkimAE_OK. For optional registers such as PM1B status/enable/control, the caller 1165193267Sjkimshould check for a valid register address before calling. ACPICA BZ 748. 1166193267Sjkim 1167193267SjkimRenamed the external ACPI bit register access functions. Renamed 1168193267SjkimAcpiGetRegister and AcpiSetRegister to clarify the purpose of these 1169193267Sjkimfunctions. The new names are AcpiReadBitRegister and AcpiWriteBitRegister. 1170193267SjkimAlso, restructured the code for these functions by simplifying the code path 1171193267Sjkimand condensing duplicate code to reduce code size. 1172193267Sjkim 1173193267SjkimAdded new functions to transparently handle the possibly split PM1 A/B 1174193267Sjkimregisters. AcpiHwReadMultiple and AcpiHwWriteMultiple. These two functions 1175193267Sjkimnow handle the split registers for PM1 Status, Enable, and Control. ACPICA BZ 1176193267Sjkim746. 1177193267Sjkim 1178193267SjkimAdded a function to handle the PM1 control registers, AcpiHwWritePm1Control. 1179193267SjkimThis function writes both of the PM1 control registers (A/B). These registers 1180193267Sjkimare different than the PM1 A/B status and enable registers in that different 1181193267Sjkimvalues can be written to the A/B registers. Most notably, the SLP_TYP bits 1182193267Sjkimcan be different, as per the values returned from the _Sx predefined methods. 1183193267Sjkim 1184193267SjkimRemoved an extra register write within AcpiHwClearAcpiStatus. This function 1185193267Sjkimwas writing an optional PM1B status register twice. The existing call to the 1186193267Sjkimlow-level AcpiHwRegisterWrite automatically handles a possibly split PM1 A/B 1187193267Sjkimregister. ACPICA BZ 751. 1188193267Sjkim 1189193267SjkimSplit out the PM1 Status registers from the FADT. Added new globals for these 1190193267Sjkimregisters (A/B), similar to the way the PM1 Enable registers are handled. 1191193267SjkimInstead of overloading the FADT Event Register blocks. This makes the code 1192193267Sjkimclearer and less prone to error. 1193193267Sjkim 1194193267SjkimFixed the warning message for when the platform contains too many ACPI tables 1195193267Sjkimfor the default size of the global root table data structure. The calculation 1196193267Sjkimfor the truncation value was incorrect. 1197193267Sjkim 1198193267SjkimRemoved the ACPI_GET_OBJECT_TYPE macro. Removed all instances of this 1199193267Sjkimobsolete macro, since it is now a simple reference to ->common.type. There 1200193267Sjkimwere about 150 invocations of the macro across 41 files. ACPICA BZ 755. 1201193267Sjkim 1202193267SjkimRemoved the redundant ACPI_BITREG_SLEEP_TYPE_B. This type is the same as 1203193267SjkimTYPE_A. Removed this and all related instances. Renamed SLEEP_TYPE_A to 1204193267Sjkimsimply SLEEP_TYPE. ACPICA BZ 754. 1205193267Sjkim 1206193267SjkimConditionally compile the AcpiSetFirmwareWakingVector64 function. This 1207193267Sjkimfunction is only needed on 64-bit host operating systems and is thus not 1208193267Sjkimincluded for 32-bit hosts. 1209193267Sjkim 1210193267SjkimDebug output: print the input and result for invocations of the _OSI reserved 1211193267Sjkimcontrol method via the ACPI_LV_INFO debug level. Also, reduced some of the 1212193267Sjkimverbosity of this debug level. Len Brown. 1213193267Sjkim 1214193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1215193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1216193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1217193267Sjkimmuch larger code and data size. 1218193267Sjkim 1219193267Sjkim Previous Release: 1220193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1221193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1222193267Sjkim Current Release: 1223193267Sjkim Non-Debug Version: 82.0K Code, 17.5K Data, 99.5K Total 1224193267Sjkim Debug Version: 156.9K Code, 49.8K Data, 206.7K Total 1225193267Sjkim 1226193267Sjkim2) iASL Compiler/Disassembler and Tools: 1227193267Sjkim 1228193267SjkimDisassembler: Decode the FADT PM_Profile field. Emit ascii names for the 1229193267Sjkimvarious legal performance profiles. 1230193267Sjkim 1231193267Sjkim---------------------------------------- 1232193267Sjkim23 January 2009. Summary of changes for version 20090123: 1233193267Sjkim 1234193267Sjkim1) ACPI CA Core Subsystem: 1235193267Sjkim 1236193267SjkimAdded the 2009 copyright to all module headers and signons. This affects 1237193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 1238193267Sjkimthe tools/utilities. 1239193267Sjkim 1240193267SjkimImplemented a change to allow the host to override any ACPI table, including 1241193267Sjkimdynamically loaded tables. Previously, only the DSDT could be replaced by the 1242193267Sjkimhost. With this change, the AcpiOsTableOverride interface is called for each 1243193267Sjkimtable found in the RSDT/XSDT during ACPICA initialization, and also whenever 1244193267Sjkima table is dynamically loaded via the AML Load operator. 1245193267Sjkim 1246193267SjkimUpdated FADT flag definitions, especially the Boot Architecture flags. 1247193267Sjkim 1248193267SjkimDebugger: For the Find command, automatically pad the input ACPI name with 1249193267Sjkimunderscores if the name is shorter than 4 characters. This enables a match 1250193267Sjkimwith the actual namespace entry which is itself padded with underscores. 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: 82.3K Code, 17.4K Data, 99.7K Total 1259193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1260193267Sjkim Current Release: 1261193267Sjkim Non-Debug Version: 82.3K Code, 17.5K Data, 99.8K Total 1262193267Sjkim Debug Version: 157.3K Code, 49.8K Data, 207.1K Total 1263193267Sjkim 1264193267Sjkim2) iASL Compiler/Disassembler and Tools: 1265193267Sjkim 1266193267SjkimFix build error under Bison-2.4. 1267193267Sjkim 1268193267SjkimDissasembler: Enhanced FADT support. Added decoding of the Boot Architecture 1269193267Sjkimflags. Now decode all flags, regardless of the FADT version. Flag output 1270193267Sjkimincludes the FADT version which first defined each flag. 1271193267Sjkim 1272193267SjkimThe iASL -g option now dumps the RSDT to a file (in addition to the FADT and 1273193267SjkimDSDT). Windows only. 1274193267Sjkim 1275193267Sjkim---------------------------------------- 1276193267Sjkim04 December 2008. Summary of changes for version 20081204: 1277193267Sjkim 1278193267Sjkim1) ACPI CA Core Subsystem: 1279193267Sjkim 1280193267SjkimThe ACPICA Programmer Reference has been completely updated and revamped for 1281193267Sjkimthis release. This includes updates to the external interfaces, OSL 1282193267Sjkiminterfaces, the overview sections, and the debugger reference. 1283193267Sjkim 1284193267SjkimSeveral new ACPICA interfaces have been implemented and documented in the 1285193267Sjkimprogrammer reference: 1286193267SjkimAcpiReset - Writes the reset value to the FADT-defined reset register. 1287193267SjkimAcpiDisableAllGpes - Disable all available GPEs. 1288193267SjkimAcpiEnableAllRuntimeGpes - Enable all available runtime GPEs. 1289193267SjkimAcpiGetGpeDevice - Get the GPE block device associated with a GPE. 1290193267SjkimAcpiGbl_CurrentGpeCount - Tracks the current number of available GPEs. 1291193267SjkimAcpiRead - Low-level read ACPI register (was HwLowLevelRead.) 1292193267SjkimAcpiWrite - Low-level write ACPI register (was HwLowLevelWrite.) 1293193267Sjkim 1294193267SjkimMost of the public ACPI hardware-related interfaces have been moved to a new 1295193267Sjkimfile, components/hardware/hwxface.c 1296193267Sjkim 1297193267SjkimEnhanced the FADT parsing and low-level ACPI register access: The ACPI 1298193267Sjkimregister lengths within the FADT are now used, and the low level ACPI 1299193267Sjkimregister access no longer hardcodes the ACPI register lengths. Given that 1300193267Sjkimthere may be some risk in actually trusting the FADT register lengths, a run- 1301193267Sjkimtime option was added to fall back to the default hardcoded lengths if the 1302193267SjkimFADT proves to contain incorrect values - UseDefaultRegisterWidths. This 1303193267Sjkimoption is set to true for now, and a warning is issued if a suspicious FADT 1304193267Sjkimregister length is overridden with the default value. 1305193267Sjkim 1306193267SjkimFixed a reference count issue in NsRepairObject. This problem was introduced 1307193267Sjkimin version 20081031 as part of a fix to repair Buffer objects within 1308193267SjkimPackages. Lin Ming. 1309193267Sjkim 1310193267SjkimAdded semaphore support to the Linux/Unix application OS-services layer 1311193267Sjkim(OSL). ACPICA BZ 448. Lin Ming. 1312193267Sjkim 1313193267SjkimAdded the ACPI_MUTEX_TYPE configuration option to select whether mutexes will 1314193267Sjkimbe implemented in the OSL, or will binary semaphores be used instead. 1315193267Sjkim 1316193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1317193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1318193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1319193267Sjkimmuch larger code and data size. 1320193267Sjkim 1321193267Sjkim Previous Release: 1322193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1323193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1324193267Sjkim Current Release: 1325193267Sjkim Non-Debug Version: 82.3K Code, 17.4K Data, 99.7K Total 1326193267Sjkim Debug Version: 157.1K Code, 49.7K Data, 206.8K Total 1327193267Sjkim 1328193267Sjkim2) iASL Compiler/Disassembler and Tools: 1329193267Sjkim 1330193267SjkimiASL: Completed the '-e' option to include additional ACPI tables in order to 1331193267Sjkimaid with disassembly and External statement generation. ACPICA BZ 742. Lin 1332193267SjkimMing. 1333193267Sjkim 1334193267SjkimiASL: Removed the "named object in while loop" error. The compiler cannot 1335193267Sjkimdetermine how many times a loop will execute. ACPICA BZ 730. 1336193267Sjkim 1337193267SjkimDisassembler: Implemented support for FADT revision 2 (MS extension). ACPICA 1338193267SjkimBZ 743. 1339193267Sjkim 1340193267SjkimDisassembler: Updates for several ACPI data tables (HEST, EINJ, and MCFG). 1341193267Sjkim 1342193267Sjkim---------------------------------------- 1343193267Sjkim31 October 2008. Summary of changes for version 20081031: 1344193267Sjkim 1345193267Sjkim1) ACPI CA Core Subsystem: 1346193267Sjkim 1347193267SjkimRestructured the ACPICA header files into public/private. acpi.h now includes 1348193267Sjkimonly the "public" acpica headers. All other acpica headers are "private" and 1349193267Sjkimshould not be included by acpica users. One new file, accommon.h is used to 1350193267Sjkiminclude the commonly used private headers for acpica code generation. Future 1351193267Sjkimplans include moving all private headers to a new subdirectory. 1352193267Sjkim 1353193267SjkimImplemented an automatic Buffer->String return value conversion for 1354193267Sjkimpredefined ACPI methods. For these methods (such as _BIF), added automatic 1355193267Sjkimconversion for return objects that are required to be a String, but a Buffer 1356193267Sjkimwas found instead. This can happen when reading string battery data from an 1357193267Sjkimoperation region, because it used to be difficult to convert the data from 1358193267Sjkimbuffer to string from within the ASL. Ensures that the host OS is provided 1359193267Sjkimwith a valid null-terminated string. Linux BZ 11822. 1360193267Sjkim 1361193267SjkimUpdated the FACS waking vector interfaces. Split AcpiSetFirmwareWakingVector 1362193267Sjkiminto two: one for the 32-bit vector, another for the 64-bit vector. This is 1363193267Sjkimrequired because the host OS must setup the wake much differently for each 1364193267Sjkimvector (real vs. protected mode, etc.) and the interface itself should not be 1365193267Sjkimdeciding which vector to use. Also, eliminated the GetFirmwareWakingVector 1366193267Sjkiminterface, as it served no purpose (only the firmware reads the vector, OS 1367193267Sjkimonly writes the vector.) ACPICA BZ 731. 1368193267Sjkim 1369193267SjkimImplemented a mechanism to escape infinite AML While() loops. Added a loop 1370193267Sjkimcounter to force exit from AML While loops if the count becomes too large. 1371193267SjkimThis can occur in poorly written AML when the hardware does not respond 1372193267Sjkimwithin a while loop and the loop does not implement a timeout. The maximum 1373193267Sjkimloop count is configurable. A new exception code is returned when a loop is 1374193267Sjkimbroken, AE_AML_INFINITE_LOOP. Alexey Starikovskiy, Bob Moore. 1375193267Sjkim 1376193267SjkimOptimized the execution of AML While loops. Previously, a control state 1377193267Sjkimobject was allocated and freed for each execution of the loop. The 1378193267Sjkimoptimization is to simply reuse the control state for each iteration. This 1379193267Sjkimspeeds up the raw loop execution time by about 5%. 1380193267Sjkim 1381193267SjkimEnhanced the implicit return mechanism. For Windows compatibility, return an 1382193267Sjkimimplicit integer of value zero for methods that contain no executable code. 1383193267SjkimSuch methods are seen in the field as stubs (presumably), and can cause 1384193267Sjkimdrivers to fail if they expect a return value. Lin Ming. 1385193267Sjkim 1386193267SjkimAllow multiple backslashes as root prefixes in namepaths. In a fully 1387193267Sjkimqualified namepath, allow multiple backslash prefixes. This can happen (and 1388193267Sjkimis seen in the field) because of the use of a double-backslash in strings 1389193267Sjkim(since backslash is the escape character) causing confusion. ACPICA BZ 739 1390193267SjkimLin Ming. 1391193267Sjkim 1392193267SjkimEmit a warning if two different FACS or DSDT tables are discovered in the 1393193267SjkimFADT. Checks if there are two valid but different addresses for the FACS and 1394193267SjkimDSDT within the FADT (mismatch between the 32-bit and 64-bit fields.) 1395193267Sjkim 1396193267SjkimConsolidated the method argument count validation code. Merged the code that 1397193267Sjkimvalidates control method argument counts into the predefined validation 1398193267Sjkimmodule. Eliminates possible multiple warnings for incorrect argument counts. 1399193267Sjkim 1400193267SjkimImplemented ACPICA example code. Includes code for ACPICA initialization, 1401193267Sjkimhandler installation, and calling a control method. Available at 1402193267Sjkimsource/tools/examples. 1403193267Sjkim 1404193267SjkimAdded a global pointer for FACS table to simplify internal FACS access. Use 1405193267Sjkimthe global pointer instead of using AcpiGetTableByIndex for each FACS access. 1406193267SjkimThis simplifies the code for the Global Lock and the Firmware Waking 1407193267SjkimVector(s). 1408193267Sjkim 1409193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1410193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1411193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1412193267Sjkimmuch larger code and data size. 1413193267Sjkim 1414193267Sjkim Previous Release: 1415193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1416193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1417193267Sjkim Current Release: 1418193267Sjkim Non-Debug Version: 81.7K Code, 17.3K Data, 99.0K Total 1419193267Sjkim Debug Version: 156.4K Code, 49.4K Data, 205.8K Total 1420193267Sjkim 1421193267Sjkim2) iASL Compiler/Disassembler and Tools: 1422193267Sjkim 1423193267SjkimiASL: Improved disassembly of external method calls. Added the -e option to 1424193267Sjkimallow the inclusion of additional ACPI tables to help with the disassembly of 1425193267Sjkimmethod invocations and the generation of external declarations during the 1426193267Sjkimdisassembly. Certain external method invocations cannot be disassembled 1427193267Sjkimproperly without the actual declaration of the method. Use the -e option to 1428193267Sjkiminclude the table where the external method(s) are actually declared. Most 1429193267Sjkimuseful for disassembling SSDTs that make method calls back to the master 1430193267SjkimDSDT. Lin Ming. Example: To disassemble an SSDT with calls to DSDT: iasl -d 1431193267Sjkim-e dsdt.aml ssdt1.aml 1432193267Sjkim 1433193267SjkimiASL: Fix to allow references to aliases within ASL namepaths. Fixes a 1434193267Sjkimproblem where the use of an alias within a namepath would result in a not 1435193267Sjkimfound error or cause the compiler to fault. Also now allows forward 1436193267Sjkimreferences from the Alias operator itself. ACPICA BZ 738. 1437193267Sjkim 1438193267Sjkim---------------------------------------- 1439193267Sjkim26 September 2008. Summary of changes for version 20080926: 1440193267Sjkim 1441193267Sjkim1) ACPI CA Core Subsystem: 1442193267Sjkim 1443193267SjkimDesigned and implemented a mechanism to validate predefined ACPI methods and 1444193267Sjkimobjects. This code validates the predefined ACPI objects (objects whose names 1445193267Sjkimstart with underscore) that appear in the namespace, at the time they are 1446193267Sjkimevaluated. The argument count and the type of the returned object are 1447193267Sjkimvalidated against the ACPI specification. The purpose of this validation is 1448193267Sjkimto detect problems with the BIOS-implemented predefined ACPI objects before 1449193267Sjkimthe results are returned to the ACPI-related drivers. Future enhancements may 1450193267Sjkiminclude actual repair of incorrect return objects where possible. Two new 1451193267Sjkimfiles are nspredef.c and acpredef.h. 1452193267Sjkim 1453193267SjkimFixed a fault in the AML parser if a memory allocation fails during the Op 1454193267Sjkimcompletion routine AcpiPsCompleteThisOp. Lin Ming. ACPICA BZ 492. 1455193267Sjkim 1456193267SjkimFixed an issue with implicit return compatibility. This change improves the 1457193267Sjkimimplicit return mechanism to be more compatible with the MS interpreter. Lin 1458193267SjkimMing, ACPICA BZ 349. 1459193267Sjkim 1460193267SjkimImplemented support for zero-length buffer-to-string conversions. Allow zero 1461193267Sjkimlength strings during interpreter buffer-to-string conversions. For example, 1462193267Sjkimduring the ToDecimalString and ToHexString operators, as well as implicit 1463193267Sjkimconversions. Fiodor Suietov, ACPICA BZ 585. 1464193267Sjkim 1465193267SjkimFixed two possible memory leaks in the error exit paths of 1466193267SjkimAcpiUtUpdateObjectReference and AcpiUtWalkPackageTree. These functions are 1467193267Sjkimsimilar in that they use a stack of state objects in order to eliminate 1468193267Sjkimrecursion. The stack must be fully unwound and deallocated if an error 1469193267Sjkimoccurs. Lin Ming. ACPICA BZ 383. 1470193267Sjkim 1471193267SjkimRemoved the unused ACPI_BITREG_WAKE_ENABLE definition and entry in the global 1472193267SjkimACPI register table. This bit does not exist and is unused. Lin Ming, Bob 1473193267SjkimMoore ACPICA BZ 442. 1474193267Sjkim 1475193267SjkimRemoved the obsolete version number in module headers. Removed the 1476193267Sjkim"$Revision" number that appeared in each module header. This version number 1477193267Sjkimwas useful under SourceSafe and CVS, but has no meaning under git. It is not 1478193267Sjkimonly incorrect, it could also be misleading. 1479193267Sjkim 1480193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1481193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1482193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1483193267Sjkimmuch larger code and data size. 1484193267Sjkim 1485193267Sjkim Previous Release: 1486193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1487193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1488193267Sjkim Current Release: 1489193267Sjkim Non-Debug Version: 81.2K Code, 17.0K Data, 98.2K Total 1490193267Sjkim Debug Version: 155.8K Code, 49.1K Data, 204.9K Total 1491193267Sjkim 1492193267Sjkim---------------------------------------- 1493193267Sjkim29 August 2008. Summary of changes for version 20080829: 1494193267Sjkim 1495193267Sjkim1) ACPI CA Core Subsystem: 1496193267Sjkim 1497193267SjkimCompleted a major cleanup of the internal ACPI_OPERAND_OBJECT of type 1498193267SjkimReference. Changes include the elimination of cheating on the Object field 1499193267Sjkimfor the DdbHandle subtype, addition of a reference class field to 1500193267Sjkimdifferentiate the various reference types (instead of an AML opcode), and the 1501193267Sjkimcleanup of debug output for this object. Lin Ming, Bob Moore. BZ 723 1502193267Sjkim 1503193267SjkimReduce an error to a warning for an incorrect method argument count. 1504193267SjkimPreviously aborted with an error if too few arguments were passed to a 1505193267Sjkimcontrol method via the external ACPICA interface. Now issue a warning instead 1506193267Sjkimand continue. Handles the case where the method inadvertently declares too 1507193267Sjkimmany arguments, but does not actually use the extra ones. Applies mainly to 1508193267Sjkimthe predefined methods. Lin Ming. Linux BZ 11032. 1509193267Sjkim 1510193267SjkimDisallow the evaluation of named object types with no intrinsic value. Return 1511193267SjkimAE_TYPE for objects that have no value and therefore evaluation is undefined: 1512193267SjkimDevice, Event, Mutex, Region, Thermal, and Scope. Previously, evaluation of 1513193267Sjkimthese types were allowed, but an exception would be generated at some point 1514193267Sjkimduring the evaluation. Now, the error is generated up front. 1515193267Sjkim 1516193267SjkimFixed a possible memory leak in the AcpiNsGetExternalPathname function 1517193267Sjkim(nsnames.c). Fixes a leak in the error exit path. 1518193267Sjkim 1519193267SjkimRemoved the obsolete debug levels ACPI_DB_WARN and ACPI_DB_ERROR. These debug 1520193267Sjkimlevels were made obsolete by the ACPI_WARNING, ACPI_ERROR, and ACPI_EXCEPTION 1521193267Sjkiminterfaces. Also added ACPI_DB_EVENTS to correspond with the existing 1522193267SjkimACPI_LV_EVENTS. 1523193267Sjkim 1524193267SjkimRemoved obsolete and/or unused exception codes from the acexcep.h header. 1525193267SjkimThere is the possibility that certain device drivers may be affected if they 1526193267Sjkimuse any of these exceptions. 1527193267Sjkim 1528193267SjkimThe ACPICA documentation has been added to the public git source tree, under 1529193267Sjkimacpica/documents. Included are the ACPICA programmer reference, the iASL 1530193267Sjkimcompiler reference, and the changes.txt release logfile. 1531193267Sjkim 1532193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1533193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1534193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1535193267Sjkimmuch larger code and data size. 1536193267Sjkim 1537193267Sjkim Previous Release: 1538193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1539193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1540193267Sjkim Current Release: 1541193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1542193267Sjkim Debug Version: 153.7K Code, 48.2K Data, 201.9K Total 1543193267Sjkim 1544193267Sjkim2) iASL Compiler/Disassembler and Tools: 1545193267Sjkim 1546193267SjkimAllow multiple argument counts for the predefined _SCP method. ACPI 3.0 1547193267Sjkimdefines _SCP with 3 arguments. Previous versions defined it with only 1 1548193267Sjkimargument. iASL now allows both definitions. 1549193267Sjkim 1550193267SjkimiASL/disassembler: avoid infinite loop on bad ACPI tables. Check for zero- 1551193267Sjkimlength subtables when disassembling ACPI tables. Also fixed a couple of 1552193267Sjkimerrors where a full 16-bit table type field was not extracted from the input 1553193267Sjkimproperly. 1554193267Sjkim 1555193267Sjkimacpisrc: Improve comment counting mechanism for generating source code 1556193267Sjkimstatistics. Count first and last lines of multi-line comments as whitespace, 1557193267Sjkimnot comment lines. Handle Linux legal header in addition to standard acpica 1558193267Sjkimheader. 1559193267Sjkim 1560193267Sjkim---------------------------------------- 1561193267Sjkim 1562193267Sjkim29 July 2008. Summary of changes for version 20080729: 1563193267Sjkim 1564193267Sjkim1) ACPI CA Core Subsystem: 1565193267Sjkim 1566193267SjkimFix a possible deadlock in the GPE dispatch. Remove call to 1567193267SjkimAcpiHwDisableAllGpes during wake in AcpiEvGpeDispatch. This call will attempt 1568193267Sjkimto acquire the GPE lock but can deadlock since the GPE lock is already held 1569193267Sjkimat dispatch time. This code was introduced in version 20060831 as a response 1570193267Sjkimto Linux BZ 6881 and has since been removed from Linux. 1571193267Sjkim 1572193267SjkimAdd a function to dereference returned reference objects. Examines the return 1573193267Sjkimobject from a call to AcpiEvaluateObject. Any Index or RefOf references are 1574193267Sjkimautomatically dereferenced in an attempt to return something useful (these 1575193267Sjkimreference types cannot be converted into an external ACPI_OBJECT.) Provides 1576193267SjkimMS compatibility. Lin Ming, Bob Moore. Linux BZ 11105 1577193267Sjkim 1578193267Sjkimx2APIC support: changes for MADT and SRAT ACPI tables. There are 2 new 1579193267Sjkimsubtables for the MADT and one new subtable for the SRAT. Includes 1580193267Sjkimdisassembler and AcpiSrc support. Data from the Intel 64 Architecture x2APIC 1581193267SjkimSpecification, June 2008. 1582193267Sjkim 1583193267SjkimAdditional error checking for pathname utilities. Add error check after all 1584193267Sjkimcalls to AcpiNsGetPathnameLength. Add status return from 1585193267SjkimAcpiNsBuildExternalPath and check after all calls. Add parameter validation 1586193267Sjkimto AcpiUtInitializeBuffer. Reported by and initial patch by Ingo Molnar. 1587193267Sjkim 1588193267SjkimReturn status from the global init function AcpiUtGlobalInitialize. This is 1589193267Sjkimused by both the kernel subsystem and the utilities such as iASL compiler. 1590193267SjkimThe function could possibly fail when the caches are initialized. Yang Yi. 1591193267Sjkim 1592193267SjkimAdd a function to decode reference object types to strings. Created for 1593193267Sjkimimproved error messages. 1594193267Sjkim 1595193267SjkimImprove object conversion error messages. Better error messages during object 1596193267Sjkimconversion from internal to the external ACPI_OBJECT. Used for external calls 1597193267Sjkimto AcpiEvaluateObject. 1598193267Sjkim 1599193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1600193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1601193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1602193267Sjkimmuch larger code and data size. 1603193267Sjkim 1604193267Sjkim Previous Release: 1605193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1606193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1607193267Sjkim Current Release: 1608193267Sjkim Non-Debug Version: 79.7K Code, 16.4K Data, 96.1K Total 1609193267Sjkim Debug Version: 153.9K Code, 48.4K Data, 202.3K Total 1610193267Sjkim 1611193267Sjkim2) iASL Compiler/Disassembler and Tools: 1612193267Sjkim 1613193267SjkimDebugger: fix a possible hang when evaluating non-methods. Fixes a problem 1614193267Sjkimintroduced in version 20080701. If the object being evaluated (via execute 1615193267Sjkimcommand) is not a method, the debugger can hang while trying to obtain non- 1616193267Sjkimexistent parameters. 1617193267Sjkim 1618193267SjkimiASL: relax error for using reserved "_T_x" identifiers. These names can 1619193267Sjkimappear in a disassembled ASL file if they were emitted by the original 1620193267Sjkimcompiler. Instead of issuing an error or warning and forcing the user to 1621193267Sjkimmanually change these names, issue a remark instead. 1622193267Sjkim 1623193267SjkimiASL: error if named object created in while loop. Emit an error if any named 1624193267Sjkimobject is created within a While loop. If allowed, this code will generate a 1625193267Sjkimrun-time error on the second iteration of the loop when an attempt is made to 1626193267Sjkimcreate the same named object twice. ACPICA bugzilla 730. 1627193267Sjkim 1628193267SjkimiASL: Support absolute pathnames for include files. Add support for absolute 1629193267Sjkimpathnames within the Include operator. previously, only relative pathnames 1630193267Sjkimwere supported. 1631193267Sjkim 1632193267SjkimiASL: Enforce minimum 1 interrupt in interrupt macro and Resource Descriptor. 1633193267SjkimThe ACPI spec requires one interrupt minimum. BZ 423 1634193267Sjkim 1635193267SjkimiASL: Handle a missing ResourceSource arg, with a present SourceIndex. 1636193267SjkimHandles the case for the Interrupt Resource Descriptor where 1637193267Sjkimthe ResourceSource argument is omitted but ResourceSourceIndex 1638193267Sjkimis present. Now leave room for the Index. BZ 426 1639193267Sjkim 1640193267SjkimiASL: Prevent error message if CondRefOf target does not exist. Fixes cases 1641193267Sjkimwhere an error message is emitted if the target does not exist. BZ 516 1642193267Sjkim 1643193267SjkimiASL: Fix broken -g option (get Windows ACPI tables). Fixes the -g option 1644193267Sjkim(get ACPI tables on Windows). This was apparently broken in version 20070919. 1645193267Sjkim 1646193267SjkimAcpiXtract: Handle EOF while extracting data. Correctly handle the case where 1647193267Sjkimthe EOF happens immediately after the last table in the input file. Print 1648193267Sjkimcompletion message. Previously, no message was displayed in this case. 1649193267Sjkim 1650193267Sjkim---------------------------------------- 1651193267Sjkim01 July 2008. Summary of changes for version 20080701: 1652193267Sjkim 1653193267Sjkim0) Git source tree / acpica.org 1654193267Sjkim 1655193267SjkimFixed a problem where a git-clone from http would not transfer the entire 1656193267Sjkimsource tree. 1657193267Sjkim 1658193267Sjkim1) ACPI CA Core Subsystem: 1659193267Sjkim 1660193267SjkimImplemented a "careful" GPE disable in AcpiEvDisableGpe, only modify one 1661193267Sjkimenable bit. Now performs a read-change-write of the enable register instead 1662193267Sjkimof simply writing out the cached enable mask. This will prevent inadvertent 1663193267Sjkimenabling of GPEs if a rogue GPE is received during initialization (before GPE 1664193267Sjkimhandlers are installed.) 1665193267Sjkim 1666193267SjkimImplemented a copy for dynamically loaded tables. Previously, dynamically 1667193267Sjkimloaded tables were simply mapped - but on some machines this memory is 1668193267Sjkimcorrupted after suspend. Now copy the table to a local buffer. For the 1669193267SjkimOpRegion case, added checksum verify. Use the table length from the table 1670193267Sjkimheader, not the region length. For the Buffer case, use the table length 1671193267Sjkimalso. Dennis Noordsij, Bob Moore. BZ 10734 1672193267Sjkim 1673193267SjkimFixed a problem where the same ACPI table could not be dynamically loaded and 1674193267Sjkimunloaded more than once. Without this change, a table cannot be loaded again 1675193267Sjkimonce it has been loaded/unloaded one time. The current mechanism does not 1676193267Sjkimunregister a table upon an unload. During a load, if the same table is found, 1677193267Sjkimthis no longer returns an exception. BZ 722 1678193267Sjkim 1679193267SjkimFixed a problem where the wrong descriptor length was calculated for the 1680193267SjkimEndTag descriptor in 64-bit mode. The "minimal" descriptors such as EndTag 1681193267Sjkimare calculated as 12 bytes long, but the actual length in the internal 1682193267Sjkimdescriptor is 16 because of the round-up to 8 on the 64-bit build. Reported 1683193267Sjkimby Linn Crosetto. BZ 728 1684193267Sjkim 1685193267SjkimFixed a possible memory leak in the Unload operator. The DdbHandle returned 1686193267Sjkimby Load() did not have its reference count decremented during unload, leading 1687193267Sjkimto a memory leak. Lin Ming. BZ 727 1688193267Sjkim 1689193267SjkimFixed a possible memory leak when deleting thermal/processor objects. Any 1690193267Sjkimassociated notify handlers (and objects) were not being deleted. Fiodor 1691193267SjkimSuietov. BZ 506 1692193267Sjkim 1693193267SjkimFixed the ordering of the ASCII names in the global mutex table to match the 1694193267Sjkimactual mutex IDs. Used by AcpiUtGetMutexName, a function used for debug only. 1695193267SjkimVegard Nossum. BZ 726 1696193267Sjkim 1697193267SjkimEnhanced the AcpiGetObjectInfo interface to return the number of required 1698193267Sjkimarguments if the object is a control method. Added this call to the debugger 1699193267Sjkimso the proper number of default arguments are passed to a method. This 1700193267Sjkimprevents a warning when executing methods from AcpiExec. 1701193267Sjkim 1702193267SjkimAdded a check for an invalid handle in AcpiGetObjectInfo. Return 1703193267SjkimAE_BAD_PARAMETER if input handle is invalid. BZ 474 1704193267Sjkim 1705193267SjkimFixed an extraneous warning from exconfig.c on the 64-bit build. 1706193267Sjkim 1707193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1708193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1709193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1710193267Sjkimmuch larger code and data size. 1711193267Sjkim 1712193267Sjkim Previous Release: 1713193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1714193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1715193267Sjkim Current Release: 1716193267Sjkim Non-Debug Version: 79.6K Code, 16.2K Data, 95.8K Total 1717193267Sjkim Debug Version: 153.5K Code, 48.2K Data, 201.7K Total 1718193267Sjkim 1719193267Sjkim2) iASL Compiler/Disassembler and Tools: 1720193267Sjkim 1721193267SjkimiASL: Added two missing ACPI reserved names. Added _MTP and _ASZ, both 1722193267Sjkimresource descriptor names. 1723193267Sjkim 1724193267SjkimiASL: Detect invalid ASCII characters in input (windows version). Removed the 1725193267Sjkim"-CF" flag from the flex compile, enables correct detection of non-ASCII 1726193267Sjkimcharacters in the input. BZ 441 1727193267Sjkim 1728193267SjkimiASL: Eliminate warning when result of LoadTable is not used. Eliminate the 1729193267Sjkim"result of operation not used" warning when the DDB handle returned from 1730193267SjkimLoadTable is not used. The warning is not needed. BZ 590 1731193267Sjkim 1732193267SjkimAcpiExec: Add support for dynamic table load/unload. Now calls _CFG method to 1733193267Sjkimpass address of table to the AML. Added option to disable OpRegion simulation 1734193267Sjkimto allow creation of an OpRegion with a real address that was passed to _CFG. 1735193267SjkimAll of this allows testing of the Load and Unload operators from AcpiExec. 1736193267Sjkim 1737193267SjkimDebugger: update tables command for unloaded tables. Handle unloaded tables 1738193267Sjkimand use the standard table header output routine. 1739193267Sjkim 1740193267Sjkim---------------------------------------- 1741193267Sjkim09 June 2008. Summary of changes for version 20080609: 1742193267Sjkim 1743193267Sjkim1) ACPI CA Core Subsystem: 1744193267Sjkim 1745193267SjkimImplemented a workaround for reversed _PRT entries. A significant number of 1746193267SjkimBIOSs erroneously reverse the _PRT SourceName and the SourceIndex. This 1747193267Sjkimchange dynamically detects and repairs this problem. Provides compatibility 1748193267Sjkimwith MS ACPI. BZ 6859 1749193267Sjkim 1750193267SjkimSimplified the internal ACPI hardware interfaces to eliminate the locking 1751193267Sjkimflag parameter from Register Read/Write. Added a new external interface, 1752193267SjkimAcpiGetRegisterUnlocked. 1753193267Sjkim 1754193267SjkimFixed a problem where the invocation of a GPE control method could hang. This 1755193267Sjkimwas a regression introduced in 20080514. The new method argument count 1756193267Sjkimvalidation mechanism can enter an infinite loop when a GPE method is 1757193267Sjkimdispatched. Problem fixed by removing the obsolete code that passed GPE block 1758193267Sjkiminformation to the notify handler via the control method parameter pointer. 1759193267Sjkim 1760193267SjkimFixed a problem where the _SST execution status was incorrectly returned to 1761193267Sjkimthe caller of AcpiEnterSleepStatePrep. This was a regression introduced in 1762193267Sjkim20080514. _SST is optional and a NOT_FOUND exception should never be 1763193267Sjkimreturned. BZ 716 1764193267Sjkim 1765193267SjkimFixed a problem where a deleted object could be accessed from within the AML 1766193267Sjkimparser. This was a regression introduced in version 20080123 as a fix for the 1767193267SjkimUnload operator. Lin Ming. BZ 10669 1768193267Sjkim 1769193267SjkimCleaned up the debug operand dump mechanism. Eliminated unnecessary operands 1770193267Sjkimand eliminated the use of a negative index in a loop. Operands are now 1771193267Sjkimdisplayed in the correct order, not backwards. This also fixes a regression 1772193267Sjkimintroduced in 20080514 on 64-bit systems where the elimination of 1773193267SjkimACPI_NATIVE_UINT caused the negative index to go large and positive. BZ 715 1774193267Sjkim 1775193267SjkimFixed a possible memory leak in EvPciConfigRegionSetup where the error exit 1776193267Sjkimpath did not delete a locally allocated structure. 1777193267Sjkim 1778193267SjkimUpdated definitions for the DMAR and SRAT tables to synchronize with the 1779193267Sjkimcurrent specifications. Includes disassembler support. 1780193267Sjkim 1781193267SjkimFixed a problem in the mutex debug code (in utmutex.c) where an incorrect 1782193267Sjkimloop termination value was used. Loop terminated on iteration early, missing 1783193267Sjkimone mutex. Linn Crosetto 1784193267Sjkim 1785193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1786193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1787193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1788193267Sjkimmuch larger code and data size. 1789193267Sjkim 1790193267Sjkim Previous Release: 1791193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1792193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1793193267Sjkim Current Release: 1794193267Sjkim Non-Debug Version: 79.3K Code, 16.2K Data, 95.5K Total 1795193267Sjkim Debug Version: 153.0K Code, 48.2K Data, 201.2K Total 1796193267Sjkim 1797193267Sjkim2) iASL Compiler/Disassembler and Tools: 1798193267Sjkim 1799193267SjkimDisassembler: Implemented support for EisaId() within _CID objects. Now 1800193267Sjkimdisassemble integer _CID objects back to EisaId invocations, including 1801193267Sjkimmultiple integers within _CID packages. Includes single-step support for 1802193267Sjkimdebugger also. 1803193267Sjkim 1804193267SjkimDisassembler: Added support for DMAR and SRAT table definition changes. 1805193267Sjkim 1806193267Sjkim---------------------------------------- 1807193267Sjkim14 May 2008. Summary of changes for version 20080514: 1808193267Sjkim 1809193267Sjkim1) ACPI CA Core Subsystem: 1810193267Sjkim 1811193267SjkimFixed a problem where GPEs were enabled too early during the ACPICA 1812193267Sjkiminitialization. This could lead to "handler not installed" errors on some 1813193267Sjkimmachines. Moved GPE enable until after _REG/_STA/_INI methods are run. This 1814193267Sjkimensures that all operation regions and devices throughout the namespace have 1815193267Sjkimbeen initialized before GPEs are enabled. Alexey Starikovskiy, BZ 9916. 1816193267Sjkim 1817193267SjkimImplemented a change to the enter sleep code. Moved execution of the _GTS 1818193267Sjkimmethod to just before setting sleep enable bit. The execution was moved from 1819193267SjkimAcpiEnterSleepStatePrep to AcpiEnterSleepState. _GTS is now executed 1820193267Sjkimimmediately before the SLP_EN bit is set, as per the ACPI specification. 1821193267SjkimLuming Yu, BZ 1653. 1822193267Sjkim 1823193267SjkimImplemented a fix to disable unknown GPEs (2nd version). Now always disable 1824193267Sjkimthe GPE, even if ACPICA thinks that that it is already disabled. It is 1825193267Sjkimpossible that the AML or some other code has enabled the GPE unbeknownst to 1826193267Sjkimthe ACPICA code. 1827193267Sjkim 1828193267SjkimFixed a problem with the Field operator where zero-length fields would return 1829193267Sjkiman AE_AML_NO_OPERAND exception during table load. Fix enables zero-length ASL 1830193267Sjkimfield declarations in Field(), BankField(), and IndexField(). BZ 10606. 1831193267Sjkim 1832193267SjkimImplemented a fix for the Load operator, now load the table at the namespace 1833193267Sjkimroot. This reverts a change introduced in version 20071019. The table is now 1834193267Sjkimloaded at the namespace root even though this goes against the ACPI 1835193267Sjkimspecification. This provides compatibility with other ACPI implementations. 1836193267SjkimThe ACPI specification will be updated to reflect this in ACPI 4.0. Lin Ming. 1837193267Sjkim 1838193267SjkimFixed a problem where ACPICA would not Load() tables with unusual signatures. 1839193267SjkimNow ignore ACPI table signature for Load() operator. Only "SSDT" is 1840193267Sjkimacceptable to the ACPI spec, but tables are seen with OEMx and null sigs. 1841193267SjkimTherefore, signature validation is worthless. Apparently MS ACPI accepts such 1842193267Sjkimsignatures, ACPICA must be compatible. BZ 10454. 1843193267Sjkim 1844193267SjkimFixed a possible negative array index in AcpiUtValidateException. Added NULL 1845193267Sjkimfields to the exception string arrays to eliminate a -1 subtraction on the 1846193267SjkimSubStatus field. 1847193267Sjkim 1848193267SjkimUpdated the debug tracking macros to reduce overall code and data size. 1849193267SjkimChanged ACPI_MODULE_NAME and ACPI_FUNCTION_NAME to use arrays of strings 1850193267Sjkiminstead of pointers to static strings. Jan Beulich and Bob Moore. 1851193267Sjkim 1852193267SjkimImplemented argument count checking in control method invocation via 1853193267SjkimAcpiEvaluateObject. Now emit an error if too few arguments, warning if too 1854193267Sjkimmany. This applies only to extern programmatic control method execution, not 1855193267Sjkimmethod-to-method calls within the AML. Lin Ming. 1856193267Sjkim 1857193267SjkimEliminated the ACPI_NATIVE_UINT type across all ACPICA code. This type is no 1858193267Sjkimlonger needed, especially with the removal of 16-bit support. It was replaced 1859193267Sjkimmostly with UINT32, but also ACPI_SIZE where a type that changes 32/64 bit on 1860193267Sjkim32/64-bit platforms is required. 1861193267Sjkim 1862193267SjkimAdded the C const qualifier for appropriate string constants -- mostly 1863193267SjkimMODULE_NAME and printf format strings. Jan Beulich. 1864193267Sjkim 1865193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1866193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1867193267Sjkimdebug version of the code includes the debug output trace mechanism and has a 1868193267Sjkimmuch larger code and data size. 1869193267Sjkim 1870193267Sjkim Previous Release: 1871193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1872193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1873193267Sjkim Current Release: 1874193267Sjkim Non-Debug Version: 79.5K Code, 16.2K Data, 95.7K Total 1875193267Sjkim Debug Version: 153.3K Code, 48.3K Data, 201.6K Total 1876193267Sjkim 1877193267Sjkim2) iASL Compiler/Disassembler and Tools: 1878193267Sjkim 1879193267SjkimImplemented ACPI table revision ID validation in the disassembler. Zero is 1880193267Sjkimalways invalid. For DSDTs, the ID controls the interpreter integer width. 1 1881193267Sjkimmeans 32-bit and this is unusual. 2 or greater is 64-bit. 1882193267Sjkim 1883193267Sjkim---------------------------------------- 1884193267Sjkim21 March 2008. Summary of changes for version 20080321: 1885193267Sjkim 1886193267Sjkim1) ACPI CA Core Subsystem: 1887193267Sjkim 1888193267SjkimImplemented an additional change to the GPE support in order to suppress 1889193267Sjkimspurious or stray GPEs. The AcpiEvDisableGpe function will now permanently 1890193267Sjkimdisable incoming GPEs that are neither enabled nor disabled -- meaning that 1891193267Sjkimthe GPE is unknown to the system. This should prevent future interrupt floods 1892193267Sjkimfrom that GPE. BZ 6217 (Zhang Rui) 1893193267Sjkim 1894193267SjkimFixed a problem where NULL package elements were not returned to the 1895193267SjkimAcpiEvaluateObject interface correctly. The element was simply ignored 1896193267Sjkiminstead of returning a NULL ACPI_OBJECT package element, potentially causing 1897193267Sjkima buffer overflow and/or confusing the caller who expected a fixed number of 1898193267Sjkimelements. BZ 10132 (Lin Ming, Bob Moore) 1899193267Sjkim 1900193267SjkimFixed a problem with the CreateField, CreateXXXField (Bit, Byte, Word, Dword, 1901193267SjkimQword), Field, BankField, and IndexField operators when invoked from inside 1902193267Sjkiman executing control method. In this case, these operators created namespace 1903193267Sjkimnodes that were incorrectly left marked as permanent nodes instead of 1904193267Sjkimtemporary nodes. This could cause a problem if there is race condition 1905193267Sjkimbetween an exiting control method and a running namespace walk. (Reported by 1906193267SjkimLinn Crosetto) 1907193267Sjkim 1908193267SjkimFixed a problem where the CreateField and CreateXXXField operators would 1909193267Sjkimincorrectly allow duplicate names (the name of the field) with no exception 1910193267Sjkimgenerated. 1911193267Sjkim 1912193267SjkimImplemented several changes for Notify handling. Added support for new Notify 1913193267Sjkimvalues (ACPI 2.0+) and improved the Notify debug output. Notify on 1914193267SjkimPowerResource objects is no longer allowed, as per the ACPI specification. 1915193267Sjkim(Bob Moore, Zhang Rui) 1916193267Sjkim 1917193267SjkimAll Reference Objects returned via the AcpiEvaluateObject interface are now 1918193267Sjkimmarked as type "REFERENCE" instead of "ANY". The type ANY is now reserved for 1919193267SjkimNULL objects - either NULL package elements or unresolved named references. 1920193267Sjkim 1921193267SjkimFixed a problem where an extraneous debug message was produced for package 1922193267Sjkimobjects (when debugging enabled). The message "Package List length larger 1923193267Sjkimthan NumElements count" is now produced in the correct case, and is now an 1924193267Sjkimerror message rather than a debug message. Added a debug message for the 1925193267Sjkimopposite case, where NumElements is larger than the Package List (the package 1926193267Sjkimwill be padded out with NULL elements as per the ACPI spec.) 1927193267Sjkim 1928193267SjkimImplemented several improvements for the output of the ASL "Debug" object to 1929193267Sjkimclarify and keep all data for a given object on one output line. 1930193267Sjkim 1931193267SjkimFixed two size calculation issues with the variable-length Start Dependent 1932193267Sjkimresource descriptor. 1933193267Sjkim 1934193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1935193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1936193267Sjkimdebug version of the code includes the debug output trace mechanism and has 1937193267Sjkima much larger code and data size. 1938193267Sjkim 1939193267Sjkim Previous Release: 1940193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 1941193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 1942193267Sjkim Current Release: 1943193267Sjkim Non-Debug Version: 80.0K Code, 17.4K Data, 97.4K Total 1944193267Sjkim Debug Version: 159.4K Code, 64.4K Data, 223.8K Total 1945193267Sjkim 1946193267Sjkim2) iASL Compiler/Disassembler and Tools: 1947193267Sjkim 1948193267SjkimFixed a problem with the use of the Switch operator where execution of the 1949193267Sjkimcontaining method by multiple concurrent threads could cause an 1950193267SjkimAE_ALREADY_EXISTS exception. This is caused by the fact that there is no 1951193267Sjkimactual Switch opcode, it must be simulated with local named temporary 1952193267Sjkimvariables and if/else pairs. The solution chosen was to mark any method that 1953193267Sjkimuses Switch as Serialized, thus preventing multiple thread entries. BZ 469. 1954193267Sjkim 1955193267Sjkim---------------------------------------- 1956193267Sjkim13 February 2008. Summary of changes for version 20080213: 1957193267Sjkim 1958193267Sjkim1) ACPI CA Core Subsystem: 1959193267Sjkim 1960193267SjkimImplemented another MS compatibility design change for GPE/Notify handling. 1961193267SjkimGPEs are now cleared/enabled asynchronously to allow all pending notifies to 1962193267Sjkimcomplete first. It is expected that the OSL will queue the enable request 1963193267Sjkimbehind all pending notify requests (may require changes to the local host OSL 1964193267Sjkimin AcpiOsExecute). Alexey Starikovskiy. 1965193267Sjkim 1966193267SjkimFixed a problem where buffer and package objects passed as arguments to a 1967193267Sjkimcontrol method via the external AcpiEvaluateObject interface could cause an 1968193267SjkimAE_AML_INTERNAL exception depending on the order and type of operators 1969193267Sjkimexecuted by the target control method. 1970193267Sjkim 1971193267SjkimFixed a problem where resource descriptor size optimization could cause a 1972193267Sjkimproblem when a _CRS resource template is passed to a _SRS method. The _SRS 1973193267Sjkimresource template must use the same descriptors (with the same size) as 1974193267Sjkimreturned from _CRS. This change affects the following resource descriptors: 1975193267SjkimIRQ / IRQNoFlags and StartDependendentFn / StartDependentFnNoPri. (BZ 9487) 1976193267Sjkim 1977193267SjkimFixed a problem where a CopyObject to RegionField, BankField, and IndexField 1978193267Sjkimobjects did not perform an implicit conversion as it should. These types must 1979193267Sjkimretain their initial type permanently as per the ACPI specification. However, 1980193267Sjkima CopyObject to all other object types should not perform an implicit 1981193267Sjkimconversion, as per the ACPI specification. (Lin Ming, Bob Moore) BZ 388 1982193267Sjkim 1983193267SjkimFixed a problem with the AcpiGetDevices interface where the mechanism to 1984193267Sjkimmatch device CIDs did not examine the entire list of available CIDs, but 1985193267Sjkiminstead aborted on the first non-matching CID. Andrew Patterson. 1986193267Sjkim 1987193267SjkimFixed a regression introduced in version 20071114. The ACPI_HIDWORD macro was 1988193267Sjkiminadvertently changed to return a 16-bit value instead of a 32-bit value, 1989193267Sjkimtruncating the upper dword of a 64-bit value. This macro is only used to 1990193267Sjkimdisplay debug output, so no incorrect calculations were made. Also, 1991193267Sjkimreimplemented the macro so that a 64-bit shift is not performed by 1992193267Sjkiminefficient compilers. 1993193267Sjkim 1994193267SjkimAdded missing va_end statements that should correspond with each va_start 1995193267Sjkimstatement. 1996193267Sjkim 1997193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 1998193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 1999193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2000193267Sjkima much larger code and data size. 2001193267Sjkim 2002193267Sjkim Previous Release: 2003193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2004193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2005193267Sjkim Current Release: 2006193267Sjkim Non-Debug Version: 79.7K Code, 17.3K Data, 97.0K Total 2007193267Sjkim Debug Version: 158.9K Code, 64.0K Data, 222.9K Total 2008193267Sjkim 2009193267Sjkim2) iASL Compiler/Disassembler and Tools: 2010193267Sjkim 2011193267SjkimImplemented full disassembler support for the following new ACPI tables: 2012193267SjkimBERT, EINJ, and ERST. Implemented partial disassembler support for the 2013193267Sjkimcomplicated HEST table. These tables support the Windows Hardware Error 2014193267SjkimArchitecture (WHEA). 2015193267Sjkim 2016193267Sjkim---------------------------------------- 2017193267Sjkim23 January 2008. Summary of changes for version 20080123: 2018193267Sjkim 2019193267Sjkim1) ACPI CA Core Subsystem: 2020193267Sjkim 2021193267SjkimAdded the 2008 copyright to all module headers and signons. This affects 2022193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2023193267Sjkimthe tools/utilities. 2024193267Sjkim 2025193267SjkimFixed a problem with the SizeOf operator when used with Package and Buffer 2026193267Sjkimobjects. These objects have deferred execution for some arguments, and the 2027193267Sjkimexecution is now completed before the SizeOf is executed. This problem caused 2028193267Sjkimunexpected AE_PACKAGE_LIMIT errors on some systems (Lin Ming, Bob Moore) BZ 2029193267Sjkim9558 2030193267Sjkim 2031193267SjkimImplemented an enhancement to the interpreter "slack mode". In the absence of 2032193267Sjkiman explicit return or an implicitly returned object from the last executed 2033193267Sjkimopcode, a control method will now implicitly return an integer of value 0 for 2034193267SjkimMicrosoft compatibility. (Lin Ming) BZ 392 2035193267Sjkim 2036193267SjkimFixed a problem with the Load operator where an exception was not returned in 2037193267Sjkimthe case where the table is already loaded. (Lin Ming) BZ 463 2038193267Sjkim 2039193267SjkimImplemented support for the use of DDBHandles as an Indexed Reference, as per 2040193267Sjkimthe ACPI spec. (Lin Ming) BZ 486 2041193267Sjkim 2042193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2043193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2044193267Sjkim 2045193267SjkimFixed a problem with the LoadTable operator where the OemId and OemTableId 2046193267Sjkiminput strings could cause unexpected failures if they were shorter than the 2047193267Sjkimmaximum lengths allowed. (Lin Ming, Bob Moore) BZ 576 2048193267Sjkim 2049193267SjkimImplemented support for UserTerm (Method invocation) for the Unload operator 2050193267Sjkimas per the ACPI spec. (Lin Ming) BZ 580 2051193267Sjkim 2052193267SjkimImplemented header file support for new ACPI tables - BERT, ERST, EINJ, HEST, 2053193267SjkimIBFT, UEFI, WDAT. Disassembler support is forthcoming. 2054193267Sjkim 2055193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2056193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2057193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2058193267Sjkima much larger code and data size. 2059193267Sjkim 2060193267Sjkim Previous Release: 2061193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2062193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2063193267Sjkim Current Release: 2064193267Sjkim Non-Debug Version: 79.5K Code, 17.2K Data, 96.7K Total 2065193267Sjkim Debug Version: 159.0K Code, 63.8K Data, 222.8K Total 2066193267Sjkim 2067193267Sjkim2) iASL Compiler/Disassembler and Tools: 2068193267Sjkim 2069193267SjkimImplemented support in the disassembler for checksum validation on incoming 2070193267Sjkimbinary DSDTs and SSDTs. If incorrect, a message is displayed within the table 2071193267Sjkimheader dump at the start of the disassembly. 2072193267Sjkim 2073193267SjkimImplemented additional debugging information in the namespace listing file 2074193267Sjkimcreated during compilation. In addition to the namespace hierarchy, the full 2075193267Sjkimpathname to each namespace object is displayed. 2076193267Sjkim 2077193267SjkimFixed a problem with the disassembler where invalid ACPI tables could cause 2078193267Sjkimfaults or infinite loops. 2079193267Sjkim 2080193267SjkimFixed an unexpected parse error when using the optional "parameter types" 2081193267Sjkimlist in a control method declaration. (Lin Ming) BZ 397 2082193267Sjkim 2083193267SjkimFixed a problem where two External declarations with the same name did not 2084193267Sjkimcause an error (Lin Ming) BZ 509 2085193267Sjkim 2086193267SjkimImplemented support for full TermArgs (adding Argx, Localx and method 2087193267Sjkiminvocation) for the ParameterData parameter to the LoadTable operator. (Lin 2088193267SjkimMing) BZ 583,587 2089193267Sjkim 2090193267Sjkim---------------------------------------- 2091193267Sjkim19 December 2007. Summary of changes for version 20071219: 2092193267Sjkim 2093193267Sjkim1) ACPI CA Core Subsystem: 2094193267Sjkim 2095193267SjkimImplemented full support for deferred execution for the TermArg string 2096193267Sjkimarguments for DataTableRegion. This enables forward references and full 2097193267Sjkimoperand resolution for the three string arguments. Similar to OperationRegion 2098193267Sjkimdeferred argument execution.) Lin Ming. BZ 430 2099193267Sjkim 2100193267SjkimImplemented full argument resolution support for the BankValue argument to 2101193267SjkimBankField. Previously, only constants were supported, now any TermArg may be 2102193267Sjkimused. Lin Ming BZ 387, 393 2103193267Sjkim 2104193267SjkimFixed a problem with AcpiGetDevices where the search of a branch of the 2105193267Sjkimdevice tree could be terminated prematurely. In accordance with the ACPI 2106193267Sjkimspecification, the search down the current branch is terminated if a device 2107193267Sjkimis both not present and not functional (instead of just not present.) Yakui 2108193267SjkimZhao. 2109193267Sjkim 2110193267SjkimFixed a problem where "unknown" GPEs could be allowed to fire repeatedly if 2111193267Sjkimthe underlying AML code changed the GPE enable registers. Now, any unknown 2112193267Sjkimincoming GPE (no _Lxx/_Exx method and not the EC GPE) is immediately disabled 2113193267Sjkiminstead of simply ignored. Rui Zhang. 2114193267Sjkim 2115193267SjkimFixed a problem with Index Fields where the Index register was incorrectly 2116193267Sjkimlimited to a maximum of 32 bits. Now any size may be used. 2117193267Sjkim 2118193267SjkimFixed a couple memory leaks associated with "implicit return" objects when 2119193267Sjkimthe AML Interpreter slack mode is enabled. Lin Ming BZ 349 2120193267Sjkim 2121193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2122193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2123193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2124193267Sjkima much larger code and data size. 2125193267Sjkim 2126193267Sjkim Previous Release: 2127193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2128193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2129193267Sjkim Current Release: 2130193267Sjkim Non-Debug Version: 79.3K Code, 17.2K Data, 96.5K Total 2131193267Sjkim Debug Version: 158.6K Code, 63.8K Data, 222.4K Total 2132193267Sjkim 2133193267Sjkim---------------------------------------- 2134193267Sjkim14 November 2007. Summary of changes for version 20071114: 2135193267Sjkim 2136193267Sjkim1) ACPI CA Core Subsystem: 2137193267Sjkim 2138193267SjkimImplemented event counters for each of the Fixed Events, the ACPI SCI 2139193267Sjkim(interrupt) itself, and control methods executed. Named 2140193267SjkimAcpiFixedEventCount[], AcpiSciCount, and AcpiMethodCount respectively. These 2141193267Sjkimshould be useful for debugging and statistics. 2142193267Sjkim 2143193267SjkimImplemented a new external interface, AcpiGetStatistics, to retrieve the 2144193267Sjkimcontents of the various event counters. Returns the current values for 2145193267SjkimAcpiSciCount, AcpiGpeCount, the AcpiFixedEventCount array, and 2146193267SjkimAcpiMethodCount. The interface can be expanded in the future if new counters 2147193267Sjkimare added. Device drivers should use this interface rather than access the 2148193267Sjkimcounters directly. 2149193267Sjkim 2150193267SjkimFixed a problem with the FromBCD and ToBCD operators. With some compilers, 2151193267Sjkimthe ShortDivide function worked incorrectly, causing problems with the BCD 2152193267Sjkimfunctions with large input values. A truncation from 64-bit to 32-bit 2153193267Sjkiminadvertently occurred. Internal BZ 435. Lin Ming 2154193267Sjkim 2155193267SjkimFixed a problem with Index references passed as method arguments. References 2156193267Sjkimpassed as arguments to control methods were dereferenced immediately (before 2157193267Sjkimcontrol was passed to the called method). The references are now correctly 2158193267Sjkimpassed directly to the called method. BZ 5389. Lin Ming 2159193267Sjkim 2160193267SjkimFixed a problem with CopyObject used in conjunction with the Index operator. 2161193267SjkimThe reference was incorrectly dereferenced before the copy. The reference is 2162193267Sjkimnow correctly copied. BZ 5391. Lin Ming 2163193267Sjkim 2164193267SjkimFixed a problem with Control Method references within Package objects. These 2165193267Sjkimreferences are now correctly generated. This completes the package 2166193267Sjkimconstruction overhaul that began in version 20071019. 2167193267Sjkim 2168193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2169193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2170193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2171193267Sjkima much larger code and data size. 2172193267Sjkim 2173193267Sjkim Previous Release: 2174193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2175193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2176193267Sjkim Current Release: 2177193267Sjkim Non-Debug Version: 79.0K Code, 17.2K Data, 96.2K Total 2178193267Sjkim Debug Version: 157.9K Code, 63.6K Data, 221.5K Total 2179193267Sjkim 2180193267Sjkim 2181193267Sjkim2) iASL Compiler/Disassembler and Tools: 2182193267Sjkim 2183193267SjkimThe AcpiExec utility now installs handlers for all of the predefined 2184193267SjkimOperation Region types. New types supported are: PCI_Config, CMOS, and 2185193267SjkimPCIBARTarget. 2186193267Sjkim 2187193267SjkimFixed a problem with the 64-bit version of AcpiExec where the extended (64- 2188193267Sjkimbit) address fields for the DSDT and FACS within the FADT were not being 2189193267Sjkimused, causing truncation of the upper 32-bits of these addresses. Lin Ming 2190193267Sjkimand Bob Moore 2191193267Sjkim 2192193267Sjkim---------------------------------------- 2193193267Sjkim19 October 2007. Summary of changes for version 20071019: 2194193267Sjkim 2195193267Sjkim1) ACPI CA Core Subsystem: 2196193267Sjkim 2197193267SjkimFixed a problem with the Alias operator when the target of the alias is a 2198193267Sjkimnamed ASL operator that opens a new scope -- Scope, Device, PowerResource, 2199193267SjkimProcessor, and ThermalZone. In these cases, any children of the original 2200193267Sjkimoperator could not be accessed via the alias, potentially causing unexpected 2201193267SjkimAE_NOT_FOUND exceptions. (BZ 9067) 2202193267Sjkim 2203193267SjkimFixed a problem with the Package operator where all named references were 2204193267Sjkimcreated as object references and left otherwise unresolved. According to the 2205193267SjkimACPI specification, a Package can only contain Data Objects or references to 2206193267Sjkimcontrol methods. The implication is that named references to Data Objects 2207193267Sjkim(Integer, Buffer, String, Package, BufferField, Field) should be resolved 2208193267Sjkimimmediately upon package creation. This is the approach taken with this 2209193267Sjkimchange. References to all other named objects (Methods, Devices, Scopes, 2210193267Sjkimetc.) are all now properly created as reference objects. (BZ 5328) 2211193267Sjkim 2212193267SjkimReverted a change to Notify handling that was introduced in version 2213193267Sjkim20070508. This version changed the Notify handling from asynchronous to 2214193267Sjkimfully synchronous (Device driver Notify handling with respect to the Notify 2215193267SjkimASL operator). It was found that this change caused more problems than it 2216193267Sjkimsolved and was removed by most users. 2217193267Sjkim 2218193267SjkimFixed a problem with the Increment and Decrement operators where the type of 2219193267Sjkimthe target object could be unexpectedly and incorrectly changed. (BZ 353) 2220193267SjkimLin Ming. 2221193267Sjkim 2222193267SjkimFixed a problem with the Load and LoadTable operators where the table 2223193267Sjkimlocation within the namespace was ignored. Instead, the table was always 2224193267Sjkimloaded into the root or current scope. Lin Ming. 2225193267Sjkim 2226193267SjkimFixed a problem with the Load operator when loading a table from a buffer 2227193267Sjkimobject. The input buffer was prematurely zeroed and/or deleted. (BZ 577) 2228193267Sjkim 2229193267SjkimFixed a problem with the Debug object where a store of a DdbHandle reference 2230193267Sjkimobject to the Debug object could cause a fault. 2231193267Sjkim 2232193267SjkimAdded a table checksum verification for the Load operator, in the case where 2233193267Sjkimthe load is from a buffer. (BZ 578). 2234193267Sjkim 2235193267SjkimImplemented additional parameter validation for the LoadTable operator. The 2236193267Sjkimlength of the input strings SignatureString, OemIdString, and OemTableId are 2237193267Sjkimnow checked for maximum lengths. (BZ 582) Lin Ming. 2238193267Sjkim 2239193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2240193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2241193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2242193267Sjkima much larger code and data size. 2243193267Sjkim 2244193267Sjkim Previous Release: 2245193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2246193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2247193267Sjkim Current Release: 2248193267Sjkim Non-Debug Version: 78.8K Code, 17.2K Data, 96.0K Total 2249193267Sjkim Debug Version: 157.2K Code, 63.4K Data, 220.6K Total 2250193267Sjkim 2251193267Sjkim 2252193267Sjkim2) iASL Compiler/Disassembler: 2253193267Sjkim 2254193267SjkimFixed a problem where if a single file was specified and the file did not 2255193267Sjkimexist, no error message was emitted. (Introduced with wildcard support in 2256193267Sjkimversion 20070917.) 2257193267Sjkim 2258193267Sjkim---------------------------------------- 2259193267Sjkim19 September 2007. Summary of changes for version 20070919: 2260193267Sjkim 2261193267Sjkim1) ACPI CA Core Subsystem: 2262193267Sjkim 2263193267SjkimDesigned and implemented new external interfaces to install and remove 2264193267Sjkimhandlers for ACPI table-related events. Current events that are defined are 2265193267SjkimLOAD and UNLOAD. These interfaces allow the host to track ACPI tables as 2266193267Sjkimthey are dynamically loaded and unloaded. See AcpiInstallTableHandler and 2267193267SjkimAcpiRemoveTableHandler. (Lin Ming and Bob Moore) 2268193267Sjkim 2269193267SjkimFixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 2270193267Sjkim(acpi_serialized option on Linux) could cause some systems to hang during 2271193267Sjkiminitialization. (Bob Moore) BZ 8171 2272193267Sjkim 2273193267SjkimFixed a problem where objects of certain types (Device, ThermalZone, 2274193267SjkimProcessor, PowerResource) can be not found if they are declared and 2275193267Sjkimreferenced from within the same control method (Lin Ming) BZ 341 2276193267Sjkim 2277193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2278193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2279193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2280193267Sjkima much larger code and data size. 2281193267Sjkim 2282193267Sjkim Previous Release: 2283193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2284193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2285193267Sjkim Current Release: 2286193267Sjkim Non-Debug Version: 78.5K Code, 17.1K Data, 95.6K Total 2287193267Sjkim Debug Version: 156.7K Code, 63.2K Data, 219.9K Total 2288193267Sjkim 2289193267Sjkim 2290193267Sjkim2) iASL Compiler/Disassembler: 2291193267Sjkim 2292193267SjkimImplemented support to allow multiple files to be compiled/disassembled in a 2293193267Sjkimsingle invocation. This includes command line wildcard support for both the 2294193267SjkimWindows and Unix versions of the compiler. This feature simplifies the 2295193267Sjkimdisassembly and compilation of multiple ACPI tables in a single directory. 2296193267Sjkim 2297193267Sjkim---------------------------------------- 2298193267Sjkim08 May 2007. Summary of changes for version 20070508: 2299193267Sjkim 2300193267Sjkim1) ACPI CA Core Subsystem: 2301193267Sjkim 2302193267SjkimImplemented a Microsoft compatibility design change for the handling of the 2303193267SjkimNotify AML operator. Previously, notify handlers were dispatched and 2304193267Sjkimexecuted completely asynchronously in a deferred thread. The new design 2305193267Sjkimstill executes the notify handlers in a different thread, but the original 2306193267Sjkimthread that executed the Notify() now waits at a synchronization point for 2307193267Sjkimthe notify handler to complete. Some machines depend on a synchronous Notify 2308193267Sjkimoperator in order to operate correctly. 2309193267Sjkim 2310193267SjkimImplemented support to allow Package objects to be passed as method 2311193267Sjkimarguments to the external AcpiEvaluateObject interface. Previously, this 2312193267Sjkimwould return the AE_NOT_IMPLEMENTED exception. This feature had not been 2313193267Sjkimimplemented since there were no reserved control methods that required it 2314193267Sjkimuntil recently. 2315193267Sjkim 2316193267SjkimFixed a problem with the internal FADT conversion where ACPI 1.0 FADTs that 2317193267Sjkimcontained invalid non-zero values in reserved fields could cause later 2318193267Sjkimfailures because these fields have meaning in later revisions of the FADT. 2319193267SjkimFor incoming ACPI 1.0 FADTs, these fields are now always zeroed. (The fields 2320193267Sjkimare: Preferred_PM_Profile, PSTATE_CNT, CST_CNT, and IAPC_BOOT_FLAGS.) 2321193267Sjkim 2322193267SjkimFixed a problem where the Global Lock handle was not properly updated if a 2323193267Sjkimthread that acquired the Global Lock via executing AML code then attempted 2324193267Sjkimto acquire the lock via the AcpiAcquireGlobalLock interface. Reported by Joe 2325193267SjkimLiu. 2326193267Sjkim 2327193267SjkimFixed a problem in AcpiEvDeleteGpeXrupt where the global interrupt list 2328193267Sjkimcould be corrupted if the interrupt being removed was at the head of the 2329193267Sjkimlist. Reported by Linn Crosetto. 2330193267Sjkim 2331193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2332193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2333193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2334193267Sjkima much larger code and data size. 2335193267Sjkim 2336193267Sjkim Previous Release: 2337193267Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2338193267Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2339193267Sjkim Current Release: 2340193267Sjkim Non-Debug Version: 78.3K Code, 17.0K Data, 95.3K Total 2341193267Sjkim Debug Version: 156.3K Code, 63.1K Data, 219.4K Total 2342193267Sjkim 2343193267Sjkim---------------------------------------- 2344167802Sjkim20 March 2007. Summary of changes for version 20070320: 2345167802Sjkim 2346167802Sjkim1) ACPI CA Core Subsystem: 2347167802Sjkim 2348193267SjkimImplemented a change to the order of interpretation and evaluation of AML 2349193267Sjkimoperand objects within the AML interpreter. The interpreter now evaluates 2350193267Sjkimoperands in the order that they appear in the AML stream (and the 2351193267Sjkimcorresponding ASL code), instead of in the reverse order (after the entire 2352193267Sjkimoperand list has been parsed). The previous behavior caused several subtle 2353193267Sjkimincompatibilities with the Microsoft AML interpreter as well as being 2354193267Sjkimsomewhat non-intuitive. BZ 7871, local BZ 263. Valery Podrezov. 2355167802Sjkim 2356193267SjkimImplemented a change to the ACPI Global Lock support. All interfaces to the 2357193267Sjkimglobal lock now allow the same thread to acquire the lock multiple times. 2358193267SjkimThis affects the AcpiAcquireGlobalLock external interface to the global lock 2359193267Sjkimas well as the internal use of the global lock to support AML fields -- a 2360193267Sjkimcontrol method that is holding the global lock can now simultaneously access 2361193267SjkimAML fields that require global lock protection. Previously, in both cases, 2362193267Sjkimthis would have resulted in an AE_ALREADY_ACQUIRED exception. The change to 2363193267SjkimAcpiAcquireGlobalLock is of special interest to drivers for the Embedded 2364193267SjkimController. There is no change to the behavior of the AML Acquire operator, 2365193267Sjkimas this can already be used to acquire a mutex multiple times by the same 2366193267Sjkimthread. BZ 8066. With assistance from Alexey Starikovskiy. 2367167802Sjkim 2368193267SjkimFixed a problem where invalid objects could be referenced in the AML 2369193267SjkimInterpreter after error conditions. During operand evaluation, ensure that 2370193267Sjkimthe internal "Return Object" field is cleared on error and only valid 2371193267Sjkimpointers are stored there. Caused occasional access to deleted objects that 2372193267Sjkimresulted in "large reference count" warning messages. Valery Podrezov. 2373167802Sjkim 2374193267SjkimFixed a problem where an AE_STACK_OVERFLOW internal exception could occur on 2375193267Sjkimdeeply nested control method invocations. BZ 7873, local BZ 487. Valery 2376193267SjkimPodrezov. 2377167802Sjkim 2378193267SjkimFixed an internal problem with the handling of result objects on the 2379193267Sjkiminterpreter result stack. BZ 7872. Valery Podrezov. 2380167802Sjkim 2381193267SjkimRemoved obsolete code that handled the case where AML_NAME_OP is the target 2382193267Sjkimof a reference (Reference.Opcode). This code was no longer necessary. BZ 2383193267Sjkim7874. Valery Podrezov. 2384167802Sjkim 2385193267SjkimRemoved obsolete ACPI_NO_INTEGER64_SUPPORT from two header files. This was a 2386193267Sjkimremnant from the previously discontinued 16-bit support. 2387167802Sjkim 2388193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2389193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2390193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2391193267Sjkima much larger code and data size. 2392167802Sjkim 2393167802Sjkim Previous 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 Current Release: 2397167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2398167802Sjkim Debug Version: 155.9K Code, 63.1K Data, 219.0K Total 2399167802Sjkim 2400167802Sjkim---------------------------------------- 2401167802Sjkim26 January 2007. Summary of changes for version 20070126: 2402167802Sjkim 2403167802Sjkim1) ACPI CA Core Subsystem: 2404167802Sjkim 2405193267SjkimAdded the 2007 copyright to all module headers and signons. This affects 2406193267Sjkimvirtually every file in the ACPICA core subsystem, the iASL compiler, and 2407193267Sjkimthe utilities. 2408167802Sjkim 2409193267SjkimImplemented a fix for an incorrect parameter passed to AcpiTbDeleteTable 2410193267Sjkimduring a table load. A bad pointer was passed in the case where the DSDT is 2411193267Sjkimoverridden, causing a fault in this case. 2412167802Sjkim 2413193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2414193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2415193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2416193267Sjkima much larger code and data size. 2417167802Sjkim 2418167802Sjkim Previous Release: 2419167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2420167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2421167802Sjkim Current Release: 2422167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2423167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2424167802Sjkim 2425167802Sjkim---------------------------------------- 2426167802Sjkim15 December 2006. Summary of changes for version 20061215: 2427167802Sjkim 2428167802Sjkim1) ACPI CA Core Subsystem: 2429167802Sjkim 2430193267SjkimSupport for 16-bit ACPICA has been completely removed since it is no longer 2431193267Sjkimnecessary and it clutters the code. All 16-bit macros, types, and 2432193267Sjkimconditional compiles have been removed, cleaning up and simplifying the code 2433193267Sjkimacross the entire subsystem. DOS support is no longer needed since the 2434193267Sjkimbootable Linux firmware kit is now available. 2435167802Sjkim 2436193267SjkimThe handler for the Global Lock is now removed during AcpiTerminate to 2437193267Sjkimenable a clean subsystem restart, via the implementation of the 2438193267SjkimAcpiEvRemoveGlobalLockHandler function. (With assistance from Joel Bretz, 2439193267SjkimHP) 2440167802Sjkim 2441193267SjkimImplemented enhancements to the multithreading support within the debugger 2442193267Sjkimto enable improved multithreading debugging and evaluation of the subsystem. 2443167802Sjkim(Valery Podrezov) 2444167802Sjkim 2445193267SjkimDebugger: Enhanced the Statistics/Memory command to emit the total (maximum) 2446193267Sjkimmemory used during the execution, as well as the maximum memory consumed by 2447193267Sjkimeach of the various object types. (Valery Podrezov) 2448167802Sjkim 2449193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2450193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2451193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2452193267Sjkima much larger code and data size. 2453193267Sjkim 2454167802Sjkim Previous Release: 2455167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2456167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2457167802Sjkim Current Release: 2458167802Sjkim Non-Debug Version: 78.0K Code, 17.1K Data, 95.1K Total 2459167802Sjkim Debug Version: 155.8K Code, 63.3K Data, 219.1K Total 2460167802Sjkim 2461167802Sjkim 2462167802Sjkim2) iASL Compiler/Disassembler and Tools: 2463167802Sjkim 2464193267SjkimAcpiExec: Implemented a new option (-m) to display full memory use 2465193267Sjkimstatistics upon subsystem/program termination. (Valery Podrezov) 2466167802Sjkim 2467167802Sjkim---------------------------------------- 2468167802Sjkim09 November 2006. Summary of changes for version 20061109: 2469167802Sjkim 2470167802Sjkim1) ACPI CA Core Subsystem: 2471167802Sjkim 2472193267SjkimOptimized the Load ASL operator in the case where the source operand is an 2473193267Sjkimoperation region. Simply map the operation region memory, instead of 2474193267Sjkimperforming a bytewise read. (Region must be of type SystemMemory, see 2475193267Sjkimbelow.) 2476167802Sjkim 2477193267SjkimFixed the Load ASL operator for the case where the source operand is a 2478193267Sjkimregion field. A buffer object is also allowed as the source operand. BZ 480 2479167802Sjkim 2480193267SjkimFixed a problem where the Load ASL operator allowed the source operand to be 2481193267Sjkiman operation region of any type. It is now restricted to regions of type 2482193267SjkimSystemMemory, as per the ACPI specification. BZ 481 2483167802Sjkim 2484193267SjkimAdditional cleanup and optimizations for the new Table Manager code. 2485167802Sjkim 2486193267SjkimAcpiEnable will now fail if all of the required ACPI tables are not loaded 2487193267Sjkim(FADT, FACS, DSDT). BZ 477 2488167802Sjkim 2489193267SjkimAdded #pragma pack(8/4) to acobject.h to ensure that the structures in this 2490193267Sjkimheader are always compiled as aligned. The ACPI_OPERAND_OBJECT has been 2491193267Sjkimmanually optimized to be aligned and will not work if it is byte-packed. 2492167802Sjkim 2493193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2494193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2495193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2496193267Sjkima much larger code and data size. 2497167802Sjkim 2498167802Sjkim Previous Release: 2499167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2500167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2501167802Sjkim Current Release: 2502167802Sjkim Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total 2503167802Sjkim Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2504167802Sjkim 2505167802Sjkim 2506167802Sjkim2) iASL Compiler/Disassembler and Tools: 2507167802Sjkim 2508193267SjkimFixed a problem where the presence of the _OSI predefined control method 2509193267Sjkimwithin complex expressions could cause an internal compiler error. 2510167802Sjkim 2511193267SjkimAcpiExec: Implemented full region support for multiple address spaces. 2512193267SjkimSpaceId is now part of the REGION object. BZ 429 2513167802Sjkim 2514167802Sjkim---------------------------------------- 2515167802Sjkim11 October 2006. Summary of changes for version 20061011: 2516167802Sjkim 2517167802Sjkim1) ACPI CA Core Subsystem: 2518167802Sjkim 2519193267SjkimCompleted an AML interpreter performance enhancement for control method 2520193267Sjkimexecution. Previously a 2-pass parse/execution, control methods are now 2521193267Sjkimcompletely parsed and executed in a single pass. This improves overall 2522193267Sjkiminterpreter performance by ~25%, reduces code size, and reduces CPU stack 2523193267Sjkimuse. (Valery Podrezov + interpreter changes in version 20051202 that 2524193267Sjkimeliminated namespace loading during the pass one parse.) 2525167802Sjkim 2526193267SjkimImplemented _CID support for PCI Root Bridge detection. If the _HID does not 2527193267Sjkimmatch the predefined PCI Root Bridge IDs, the _CID list (if present) is now 2528193267Sjkimobtained and also checked for an ID match. 2529167802Sjkim 2530193267SjkimImplemented additional support for the PCI _ADR execution: upsearch until a 2531193267Sjkimdevice scope is found before executing _ADR. This allows PCI_Config 2532193267Sjkimoperation regions to be declared locally within control methods underneath 2533193267SjkimPCI device objects. 2534167802Sjkim 2535193267SjkimFixed a problem with a possible race condition between threads executing 2536193267SjkimAcpiWalkNamespace and the AML interpreter. This condition was removed by 2537193267Sjkimmodifying AcpiWalkNamespace to (by default) ignore all temporary namespace 2538193267Sjkimentries created during any concurrent control method execution. An 2539193267Sjkimadditional namespace race condition is known to exist between 2540193267SjkimAcpiWalkNamespace and the Load/Unload ASL operators and is still under 2541193267Sjkiminvestigation. 2542167802Sjkim 2543193267SjkimRestructured the AML ParseLoop function, breaking it into several 2544193267Sjkimsubfunctions in order to reduce CPU stack use and improve maintainability. 2545193267Sjkim(Mikhail Kouzmich) 2546167802Sjkim 2547193267SjkimAcpiGetHandle: Fix for parameter validation to detect invalid combinations 2548193267Sjkimof prefix handle and pathname. BZ 478 2549167802Sjkim 2550193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2551193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2552193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2553193267Sjkima much larger code and data size. 2554167802Sjkim 2555167802Sjkim Previous Release: 2556167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2557167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2558167802Sjkim Current Release: 2559167802Sjkim Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total 2560167802Sjkim Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2561167802Sjkim 2562167802Sjkim2) iASL Compiler/Disassembler and Tools: 2563167802Sjkim 2564193267SjkimPorted the -g option (get local ACPI tables) to the new ACPICA Table Manager 2565193267Sjkimto restore original behavior. 2566167802Sjkim 2567167802Sjkim---------------------------------------- 2568167802Sjkim27 September 2006. Summary of changes for version 20060927: 2569167802Sjkim 2570167802Sjkim1) ACPI CA Core Subsystem: 2571167802Sjkim 2572193267SjkimRemoved the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. 2573193267SjkimThese functions now use a spinlock for mutual exclusion and the interrupt 2574193267Sjkimlevel indication flag is not needed. 2575167802Sjkim 2576193267SjkimFixed a problem with the Global Lock where the lock could appear to be 2577193267Sjkimobtained before it is actually obtained. The global lock semaphore was 2578193267Sjkiminadvertently created with one unit instead of zero units. (BZ 464) Fiodor 2579193267SjkimSuietov. 2580167802Sjkim 2581193267SjkimFixed a possible memory leak and fault in AcpiExResolveObjectToValue during 2582193267Sjkima read from a buffer or region field. (BZ 458) Fiodor Suietov. 2583167802Sjkim 2584193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2585193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2586193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2587193267Sjkima much larger code and data size. 2588167802Sjkim 2589167802Sjkim Previous 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 Current Release: 2593167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2594167802Sjkim Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2595167802Sjkim 2596167802Sjkim 2597167802Sjkim2) iASL Compiler/Disassembler and Tools: 2598167802Sjkim 2599193267SjkimFixed a compilation problem with the pre-defined Resource Descriptor field 2600193267Sjkimnames where an "object does not exist" error could be incorrectly generated 2601193267Sjkimif the parent ResourceTemplate pathname places the template within a 2602193267Sjkimdifferent namespace scope than the current scope. (BZ 7212) 2603167802Sjkim 2604193267SjkimFixed a problem where the compiler could hang after syntax errors detected 2605193267Sjkimin an ElseIf construct. (BZ 453) 2606167802Sjkim 2607193267SjkimFixed a problem with the AmlFilename parameter to the DefinitionBlock() 2608193267Sjkimoperator. An incorrect output filename was produced when this parameter was 2609193267Sjkima null string (""). Now, the original input filename is used as the AML 2610193267Sjkimoutput filename, with an ".aml" extension. 2611167802Sjkim 2612193267SjkimImplemented a generic batch command mode for the AcpiExec utility (execute 2613193267Sjkimany AML debugger command) (Valery Podrezov). 2614167802Sjkim 2615167802Sjkim---------------------------------------- 2616167802Sjkim12 September 2006. Summary of changes for version 20060912: 2617167802Sjkim 2618167802Sjkim1) ACPI CA Core Subsystem: 2619167802Sjkim 2620193267SjkimEnhanced the implementation of the "serialized mode" of the interpreter 2621193267Sjkim(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 2622193267Sjkimspecified, instead of creating a serialization semaphore per control method, 2623193267Sjkimthe interpreter lock is simply no longer released before a blocking 2624193267Sjkimoperation during control method execution. This effectively makes the AML 2625193267SjkimInterpreter single-threaded. The overhead of a semaphore per-method is 2626193267Sjkimeliminated. 2627167802Sjkim 2628193267SjkimFixed a regression where an error was no longer emitted if a control method 2629193267Sjkimattempts to create 2 objects of the same name. This once again returns 2630193267SjkimAE_ALREADY_EXISTS. When this exception occurs, it invokes the mechanism that 2631193267Sjkimwill dynamically serialize the control method to possible prevent future 2632193267Sjkimerrors. (BZ 440) 2633167802Sjkim 2634193267SjkimIntegrated a fix for a problem with PCI Express HID detection in the PCI 2635193267SjkimConfig Space setup procedure. (BZ 7145) 2636167802Sjkim 2637193267SjkimMoved all FADT-related functions to a new file, tbfadt.c. Eliminated the 2638193267SjkimAcpiHwInitialize function - the FADT registers are now validated when the 2639193267Sjkimtable is loaded. 2640167802Sjkim 2641193267SjkimAdded two new warnings during FADT verification - 1) if the FADT is larger 2642193267Sjkimthan the largest known FADT version, and 2) if there is a mismatch between a 2643193267Sjkim32-bit block address and the 64-bit X counterpart (when both are non-zero.) 2644167802Sjkim 2645193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2646193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2647193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2648193267Sjkima much larger code and data size. 2649167802Sjkim 2650167802Sjkim Previous Release: 2651167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2652167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2653167802Sjkim Current Release: 2654167802Sjkim Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total 2655167802Sjkim Debug Version: 154.7K Code, 63.0K Data, 217.7K Total 2656167802Sjkim 2657167802Sjkim 2658167802Sjkim2) iASL Compiler/Disassembler and Tools: 2659167802Sjkim 2660193267SjkimFixed a problem with the implementation of the Switch() operator where the 2661193267Sjkimtemporary variable was declared too close to the actual Switch, instead of 2662193267Sjkimat method level. This could cause a problem if the Switch() operator is 2663193267Sjkimwithin a while loop, causing an error on the second iteration. (BZ 460) 2664167802Sjkim 2665193267SjkimDisassembler - fix for error emitted for unknown type for target of scope 2666193267Sjkimoperator. Now, ignore it and continue. 2667167802Sjkim 2668193267SjkimDisassembly of an FADT now verifies the input FADT and reports any errors 2669193267Sjkimfound. Fix for proper disassembly of full-sized (ACPI 2.0) FADTs. 2670167802Sjkim 2671193267SjkimDisassembly of raw data buffers with byte initialization data now prefixes 2672193267Sjkimeach output line with the current buffer offset. 2673167802Sjkim 2674193267SjkimDisassembly of ASF! table now includes all variable-length data fields at 2675193267Sjkimthe end of some of the subtables. 2676167802Sjkim 2677193267SjkimThe disassembler now emits a comment if a buffer appears to be a 2678193267SjkimResourceTemplate, but cannot be disassembled as such because the EndTag does 2679193267Sjkimnot appear at the very end of the buffer. 2680167802Sjkim 2681193267SjkimAcpiExec - Added the "-t" command line option to enable the serialized mode 2682193267Sjkimof the AML interpreter. 2683167802Sjkim 2684167802Sjkim---------------------------------------- 2685167802Sjkim31 August 2006. Summary of changes for version 20060831: 2686167802Sjkim 2687167802Sjkim1) ACPI CA Core Subsystem: 2688167802Sjkim 2689167802SjkimMiscellaneous fixes for the Table Manager: 2690193267Sjkim- Correctly initialize internal common FADT for all 64-bit "X" fields 2691167802Sjkim- Fixed a couple table mapping issues during table load 2692167802Sjkim- Fixed a couple alignment issues for IA64 2693167802Sjkim- Initialize input array to zero in AcpiInitializeTables 2694193267Sjkim- Additional parameter validation for AcpiGetTable, AcpiGetTableHeader, 2695193267SjkimAcpiGetTableByIndex 2696167802Sjkim 2697193267SjkimChange for GPE support: when a "wake" GPE is received, all wake GPEs are now 2698193267Sjkimimmediately disabled to prevent the waking GPE from firing again and to 2699193267Sjkimprevent other wake GPEs from interrupting the wake process. 2700167802Sjkim 2701193267SjkimAdded the AcpiGpeCount global that tracks the number of processed GPEs, to 2702193267Sjkimbe used for debugging systems with a large number of ACPI interrupts. 2703167802Sjkim 2704193267SjkimImplemented support for the "DMAR" ACPI table (DMA Redirection Table) in 2705193267Sjkimboth the ACPICA headers and the disassembler. 2706167802Sjkim 2707193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2708193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2709193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2710193267Sjkima much larger code and data size. 2711167802Sjkim 2712167802Sjkim Previous Release: 2713167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2714167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2715167802Sjkim Current Release: 2716167802Sjkim Non-Debug Version: 77.9K Code, 16.7K Data, 94.6K Total 2717167802Sjkim Debug Version: 154.9K Code, 62.6K Data, 217.5K Total 2718167802Sjkim 2719167802Sjkim 2720167802Sjkim2) iASL Compiler/Disassembler and Tools: 2721167802Sjkim 2722167802SjkimDisassembler support for the DMAR ACPI table. 2723167802Sjkim 2724167802Sjkim---------------------------------------- 2725167802Sjkim23 August 2006. Summary of changes for version 20060823: 2726167802Sjkim 2727167802Sjkim1) ACPI CA Core Subsystem: 2728167802Sjkim 2729193267SjkimThe Table Manager component has been completely redesigned and 2730193267Sjkimreimplemented. The new design is much simpler, and reduces the overall code 2731193267Sjkimand data size of the kernel-resident ACPICA by approximately 5%. Also, it is 2732193267Sjkimnow possible to obtain the ACPI tables very early during kernel 2733193267Sjkiminitialization, even before dynamic memory management is initialized. 2734193267Sjkim(Alexey Starikovskiy, Fiodor Suietov, Bob Moore) 2735167802Sjkim 2736167802SjkimObsolete ACPICA interfaces: 2737167802Sjkim 2738193267Sjkim- AcpiGetFirmwareTable: Use AcpiGetTable instead (works at early kernel init 2739193267Sjkimtime). 2740167802Sjkim- AcpiLoadTable: Not needed. 2741167802Sjkim- AcpiUnloadTable: Not needed. 2742167802Sjkim 2743167802SjkimNew ACPICA interfaces: 2744167802Sjkim 2745193267Sjkim- AcpiInitializeTables: Must be called before the table manager can be used. 2746193267Sjkim- AcpiReallocateRootTable: Used to transfer the root table to dynamically 2747193267Sjkimallocated memory after it becomes available. 2748193267Sjkim- AcpiGetTableByIndex: Allows the host to easily enumerate all ACPI tables 2749193267Sjkimin the RSDT/XSDT. 2750167802Sjkim 2751167802SjkimOther ACPICA changes: 2752167802Sjkim 2753193267Sjkim- AcpiGetTableHeader returns the actual mapped table header, not a copy. Use 2754193267SjkimAcpiOsUnmapMemory to free this mapping. 2755193267Sjkim- AcpiGetTable returns the actual mapped table. The mapping is managed 2756193267Sjkiminternally and must not be deleted by the caller. Use of this interface 2757193267Sjkimcauses no additional dynamic memory allocation. 2758193267Sjkim- AcpiFindRootPointer: Support for physical addressing has been eliminated, 2759193267Sjkimit appeared to be unused. 2760193267Sjkim- The interface to AcpiOsMapMemory has changed to be consistent with the 2761193267Sjkimother allocation interfaces. 2762193267Sjkim- The interface to AcpiOsGetRootPointer has changed to eliminate unnecessary 2763193267Sjkimparameters. 2764193267Sjkim- ACPI_PHYSICAL_ADDRESS is now 32 bits on 32-bit platforms, 64 bits on 64- 2765193267Sjkimbit platforms. Was previously 64 bits on all platforms. 2766193267Sjkim- The interface to the ACPI Global Lock acquire/release macros have changed 2767193267Sjkimslightly since ACPICA no longer keeps a local copy of the FACS with a 2768193267Sjkimconstructed pointer to the actual global lock. 2769167802Sjkim 2770167802SjkimPorting to the new table manager: 2771167802Sjkim 2772193267Sjkim- AcpiInitializeTables: Must be called once, and can be called anytime 2773193267Sjkimduring the OS initialization process. It allows the host to specify an area 2774193267Sjkimof memory to be used to store the internal version of the RSDT/XSDT (root 2775193267Sjkimtable). This allows the host to access ACPI tables before memory management 2776193267Sjkimis initialized and running. 2777193267Sjkim- AcpiReallocateRootTable: Can be called after memory management is running 2778193267Sjkimto copy the root table to a dynamically allocated array, freeing up the 2779193267Sjkimscratch memory specified in the call to AcpiInitializeTables. 2780193267Sjkim- AcpiSubsystemInitialize: This existing interface is independent of the 2781193267SjkimTable Manager, and does not have to be called before the Table Manager can 2782193267Sjkimbe used, it only must be called before the rest of ACPICA can be used. 2783193267Sjkim- ACPI Tables: Some changes have been made to the names and structure of the 2784193267Sjkimactbl.h and actbl1.h header files and may require changes to existing code. 2785193267SjkimFor example, bitfields have been completely removed because of their lack of 2786193267Sjkimportability across C compilers. 2787193267Sjkim- Update interfaces to the Global Lock acquire/release macros if local 2788193267Sjkimversions are used. (see acwin.h) 2789167802Sjkim 2790167802SjkimObsolete files: tbconvrt.c, tbget.c, tbgetall.c, tbrsdt.c 2791167802Sjkim 2792167802SjkimNew files: tbfind.c 2793167802Sjkim 2794193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2795193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2796193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2797193267Sjkima much larger code and data size. 2798167802Sjkim 2799167802Sjkim Previous Release: 2800167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2801167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2802167802Sjkim Current Release: 2803167802Sjkim Non-Debug Version: 77.8K Code, 16.5K Data, 94.3K Total 2804167802Sjkim Debug Version: 154.6K Code, 62.3K Data, 216.9K Total 2805167802Sjkim 2806167802Sjkim 2807167802Sjkim2) iASL Compiler/Disassembler and Tools: 2808167802Sjkim 2809167802SjkimNo changes for this release. 2810167802Sjkim 2811167802Sjkim---------------------------------------- 2812167802Sjkim21 July 2006. Summary of changes for version 20060721: 2813167802Sjkim 2814167802Sjkim1) ACPI CA Core Subsystem: 2815167802Sjkim 2816193267SjkimThe full source code for the ASL test suite used to validate the iASL 2817193267Sjkimcompiler and the ACPICA core subsystem is being released with the ACPICA 2818193267Sjkimsource for the first time. The source is contained in a separate package and 2819193267Sjkimconsists of over 1100 files that exercise all ASL/AML operators. The package 2820193267Sjkimshould appear on the Intel/ACPI web site shortly. (Valery Podrezov, Fiodor 2821167802SjkimSuietov) 2822167802Sjkim 2823193267SjkimCompleted a new design and implementation for support of the ACPI Global 2824193267SjkimLock. On the OS side, the global lock is now treated as a standard AML 2825193267Sjkimmutex. Previously, multiple OS threads could "acquire" the global lock 2826193267Sjkimsimultaneously. However, this could cause the BIOS to be starved out of the 2827193267Sjkimlock - especially in cases such as the Embedded Controller driver where 2828193267Sjkimthere is a tight coupling between the OS and the BIOS. 2829167802Sjkim 2830193267SjkimImplemented an optimization for the ACPI Global Lock interrupt mechanism. 2831193267SjkimThe Global Lock interrupt handler no longer queues the execution of a 2832193267Sjkimseparate thread to signal the global lock semaphore. Instead, the semaphore 2833193267Sjkimis signaled directly from the interrupt handler. 2834167802Sjkim 2835193267SjkimImplemented support within the AML interpreter for package objects that 2836193267Sjkimcontain a larger AML length (package list length) than the package element 2837193267Sjkimcount. In this case, the length of the package is truncated to match the 2838193267Sjkimpackage element count. Some BIOS code apparently modifies the package length 2839193267Sjkimon the fly, and this change supports this behavior. Provides compatibility 2840193267Sjkimwith the MS AML interpreter. (With assistance from Fiodor Suietov) 2841167802Sjkim 2842193267SjkimImplemented a temporary fix for the BankValue parameter of a Bank Field to 2843193267Sjkimsupport all constant values, now including the Zero and One opcodes. 2844193267SjkimEvaluation of this parameter must eventually be converted to a full TermArg 2845193267Sjkimevaluation. A not-implemented error is now returned (temporarily) for non- 2846193267Sjkimconstant values for this parameter. 2847167802Sjkim 2848167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2849193267Sjkim- Fix for premature object deletion after CopyObject on Operation Region (BZ 2850193267Sjkim350) 2851167802Sjkim 2852193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2853193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2854193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2855193267Sjkima much larger code and data size. 2856167802Sjkim 2857167802Sjkim Previous Release: 2858167802Sjkim Non-Debug Version: 80.7K Code, 18.0K Data, 98.7K Total 2859167802Sjkim Debug Version: 160.9K Code, 65.1K Data, 226.0K Total 2860167802Sjkim Current Release: 2861167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2862167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2863167802Sjkim 2864167802Sjkim 2865167802Sjkim2) iASL Compiler/Disassembler and Tools: 2866167802Sjkim 2867167802SjkimNo changes for this release. 2868167802Sjkim 2869167802Sjkim---------------------------------------- 2870167802Sjkim07 July 2006. Summary of changes for version 20060707: 2871167802Sjkim 2872167802Sjkim1) ACPI CA Core Subsystem: 2873167802Sjkim 2874193267SjkimAdded the ACPI_PACKED_POINTERS_NOT_SUPPORTED macro to support C compilers 2875193267Sjkimthat do not allow the initialization of address pointers within packed 2876193267Sjkimstructures - even though the hardware itself may support misaligned 2877193267Sjkimtransfers. Some of the debug data structures are packed by default to 2878193267Sjkimminimize size. 2879167802Sjkim 2880193267SjkimAdded an error message for the case where AcpiOsGetThreadId() returns zero. 2881193267SjkimA non-zero value is required by the core ACPICA code to ensure the proper 2882193267Sjkimoperation of AML mutexes and recursive control methods. 2883167802Sjkim 2884193267SjkimThe DSDT is now the only ACPI table that determines whether the AML 2885193267Sjkiminterpreter is in 32-bit or 64-bit mode. Not really a functional change, but 2886193267Sjkimthe hooks for per-table 32/64 switching have been removed from the code. A 2887193267Sjkimclarification to the ACPI specification is forthcoming in ACPI 3.0B. 2888167802Sjkim 2889193267SjkimFixed a possible leak of an OwnerID in the error path of 2890193267SjkimAcpiTbInitTableDescriptor (tbinstal.c), and migrated all table OwnerID 2891193267Sjkimdeletion to a single place in AcpiTbUninstallTable to correct possible leaks 2892193267Sjkimwhen using the AcpiTbDeleteTablesByType interface (with assistance from 2893193267SjkimLance Ortiz.) 2894167802Sjkim 2895193267SjkimFixed a problem with Serialized control methods where the semaphore 2896193267Sjkimassociated with the method could be over-signaled after multiple method 2897193267Sjkiminvocations. 2898167802Sjkim 2899193267SjkimFixed two issues with the locking of the internal namespace data structure. 2900193267SjkimBoth the Unload() operator and AcpiUnloadTable interface now lock the 2901193267Sjkimnamespace during the namespace deletion associated with the table unload 2902193267Sjkim(with assistance from Linn Crosetto.) 2903167802Sjkim 2904167802SjkimFixed problem reports (Valery Podrezov) integrated: 2905193267Sjkim- Eliminate unnecessary memory allocation for CreateXxxxField (BZ 5426) 2906167802Sjkim 2907167802SjkimFixed problem reports (Fiodor Suietov) integrated: 2908167802Sjkim- Incomplete cleanup branches in AcpiTbGetTableRsdt (BZ 369) 2909193267Sjkim- On Address Space handler deletion, needless deactivation call (BZ 374) 2910193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Device handle parameter (BZ 375) 2911193267Sjkim- Possible memory leak, Notify sub-objects of Processor, Power, ThermalZone 2912193267Sjkim(BZ 376) 2913193267Sjkim- AcpiRemoveAddressSpaceHandler: validate Handler parameter (BZ 378) 2914167802Sjkim- Minimum Length of RSDT should be validated (BZ 379) 2915193267Sjkim- AcpiRemoveNotifyHandler: return AE_NOT_EXIST if Processor Obj has no 2916193267SjkimHandler (BZ (380) 2917193267Sjkim- AcpiUnloadTable: return AE_NOT_EXIST if no table of specified type loaded 2918193267Sjkim(BZ 381) 2919167802Sjkim 2920193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2921193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2922193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2923193267Sjkima much larger code and data size. 2924167802Sjkim 2925167802Sjkim Previous Release: 2926167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2927167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2928167802Sjkim Current Release: 2929167802Sjkim Non-Debug Version: 80.7K Code, 17.9K Data, 98.6K Total 2930167802Sjkim Debug Version: 161.0K Code, 65.1K Data, 226.1K Total 2931167802Sjkim 2932167802Sjkim 2933167802Sjkim2) iASL Compiler/Disassembler and Tools: 2934167802Sjkim 2935167802SjkimFixed problem reports: 2936193267SjkimCompiler segfault when ASL contains a long (>1024) String declaration (BZ 2937193267Sjkim436) 2938167802Sjkim 2939167802Sjkim---------------------------------------- 2940167802Sjkim23 June 2006. Summary of changes for version 20060623: 2941167802Sjkim 2942167802Sjkim1) ACPI CA Core Subsystem: 2943167802Sjkim 2944193267SjkimImplemented a new ACPI_SPINLOCK type for the OSL lock interfaces. This 2945193267Sjkimallows the type to be customized to the host OS for improved efficiency 2946193267Sjkim(since a spinlock is usually a very small object.) 2947167802Sjkim 2948193267SjkimImplemented support for "ignored" bits in the ACPI registers. According to 2949193267Sjkimthe ACPI specification, these bits should be preserved when writing the 2950193267Sjkimregisters via a read/modify/write cycle. There are 3 bits preserved in this 2951193267Sjkimmanner: PM1_CONTROL[0] (SCI_EN), PM1_CONTROL[9], and PM1_STATUS[11]. 2952167802Sjkim 2953193267SjkimImplemented the initial deployment of new OSL mutex interfaces. Since some 2954193267Sjkimhost operating systems have separate mutex and semaphore objects, this 2955193267Sjkimfeature was requested. The base code now uses mutexes (and the new mutex 2956193267Sjkiminterfaces) wherever a binary semaphore was used previously. However, for 2957193267Sjkimthe current release, the mutex interfaces are defined as macros to map them 2958193267Sjkimto the existing semaphore interfaces. Therefore, no OSL changes are required 2959193267Sjkimat this time. (See acpiosxf.h) 2960167802Sjkim 2961193267SjkimFixed several problems with the support for the control method SyncLevel 2962193267Sjkimparameter. The SyncLevel now works according to the ACPI specification and 2963193267Sjkimin concert with the Mutex SyncLevel parameter, since the current SyncLevel 2964193267Sjkimis a property of the executing thread. Mutual exclusion for control methods 2965193267Sjkimis now implemented with a mutex instead of a semaphore. 2966167802Sjkim 2967193267SjkimFixed three instances of the use of the C shift operator in the bitfield 2968193267Sjkimsupport code (exfldio.c) to avoid the use of a shift value larger than the 2969193267Sjkimtarget data width. The behavior of C compilers is undefined in this case and 2970193267Sjkimcan cause unpredictable results, and therefore the case must be detected and 2971193267Sjkimavoided. (Fiodor Suietov) 2972167802Sjkim 2973193267SjkimAdded an info message whenever an SSDT or OEM table is loaded dynamically 2974193267Sjkimvia the Load() or LoadTable() ASL operators. This should improve debugging 2975193267Sjkimcapability since it will show exactly what tables have been loaded (beyond 2976193267Sjkimthe tables present in the RSDT/XSDT.) 2977167802Sjkim 2978193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 2979193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 2980193267Sjkimdebug version of the code includes the debug output trace mechanism and has 2981193267Sjkima much larger code and data size. 2982167802Sjkim 2983167802Sjkim Previous Release: 2984167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 2985167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 2986167802Sjkim Current Release: 2987167802Sjkim Non-Debug Version: 80.5K Code, 17.8K Data, 98.3K Total 2988167802Sjkim Debug Version: 160.8K Code, 64.8K Data, 225.6K Total 2989167802Sjkim 2990167802Sjkim 2991167802Sjkim2) iASL Compiler/Disassembler and Tools: 2992167802Sjkim 2993167802SjkimNo changes for this release. 2994167802Sjkim 2995167802Sjkim---------------------------------------- 2996167802Sjkim08 June 2006. Summary of changes for version 20060608: 2997167802Sjkim 2998167802Sjkim1) ACPI CA Core Subsystem: 2999167802Sjkim 3000193267SjkimConverted the locking mutex used for the ACPI hardware to a spinlock. This 3001193267Sjkimchange should eliminate all problems caused by attempting to acquire a 3002193267Sjkimsemaphore at interrupt level, and it means that all ACPICA external 3003193267Sjkiminterfaces that directly access the ACPI hardware can be safely called from 3004193267Sjkiminterrupt level. OSL code that implements the semaphore interfaces should be 3005193267Sjkimable to eliminate any workarounds for being called at interrupt level. 3006167802Sjkim 3007193267SjkimFixed a regression introduced in 20060526 where the ACPI device 3008193267Sjkiminitialization could be prematurely aborted with an AE_NOT_FOUND if a device 3009193267Sjkimdid not have an optional _INI method. 3010167802Sjkim 3011193267SjkimFixed an IndexField issue where a write to the Data Register should be 3012193267Sjkimlimited in size to the AccessSize (width) of the IndexField itself. (BZ 433, 3013193267SjkimFiodor Suietov) 3014167802Sjkim 3015167802SjkimFixed problem reports (Valery Podrezov) integrated: 3016193267Sjkim- Allow store of ThermalZone objects to Debug object (BZ 5369/5370) 3017167802Sjkim 3018167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3019193267Sjkim- AcpiGetTableHeader doesn't handle multiple instances correctly (BZ 364) 3020167802Sjkim 3021193267SjkimRemoved four global mutexes that were obsolete and were no longer being 3022193267Sjkimused. 3023167802Sjkim 3024193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3025193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3026193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3027193267Sjkima much larger code and data size. 3028167802Sjkim 3029167802Sjkim Previous Release: 3030167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3031167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3032167802Sjkim Current Release: 3033167802Sjkim Non-Debug Version: 80.0K Code, 17.6K Data, 97.6K Total 3034167802Sjkim Debug Version: 160.2K Code, 64.7K Data, 224.9K Total 3035167802Sjkim 3036167802Sjkim 3037167802Sjkim2) iASL Compiler/Disassembler and Tools: 3038167802Sjkim 3039193267SjkimFixed a fault when using -g option (get tables from registry) on Windows 3040193267Sjkimmachines. 3041167802Sjkim 3042167802SjkimFixed problem reports integrated: 3043193267Sjkim- Generate error if CreateField NumBits parameter is zero. (BZ 405) 3044193267Sjkim- Fault if Offset/Length in Field unit is very large (BZ 432, Fiodor 3045193267SjkimSuietov) 3046167802Sjkim- Global table revision override (-r) is ignored (BZ 413) 3047167802Sjkim 3048167802Sjkim---------------------------------------- 3049167802Sjkim26 May 2006. Summary of changes for version 20060526: 3050167802Sjkim 3051167802Sjkim1) ACPI CA Core Subsystem: 3052167802Sjkim 3053193267SjkimRestructured, flattened, and simplified the internal interfaces for 3054193267Sjkimnamespace object evaluation - resulting in smaller code, less CPU stack use, 3055193267Sjkimand fewer interfaces. (With assistance from Mikhail Kouzmich) 3056167802Sjkim 3057193267SjkimFixed a problem with the CopyObject operator where the first parameter was 3058193267Sjkimnot typed correctly for the parser, interpreter, compiler, and disassembler. 3059193267SjkimCaused various errors and unexpected behavior. 3060167802Sjkim 3061193267SjkimFixed a problem where a ShiftLeft or ShiftRight of more than 64 bits 3062193267Sjkimproduced incorrect results with some C compilers. Since the behavior of C 3063193267Sjkimcompilers when the shift value is larger than the datatype width is 3064193267Sjkimapparently not well defined, the interpreter now detects this condition and 3065193267Sjkimsimply returns zero as expected in all such cases. (BZ 395) 3066167802Sjkim 3067167802SjkimFixed problem reports (Valery Podrezov) integrated: 3068193267Sjkim- Update String-to-Integer conversion to match ACPI 3.0A spec (BZ 5329) 3069193267Sjkim- Allow interpreter to handle nested method declarations (BZ 5361) 3070167802Sjkim 3071167802SjkimFixed problem reports (Fiodor Suietov) integrated: 3072193267Sjkim- AcpiTerminate doesn't free debug memory allocation list objects (BZ 355) 3073193267Sjkim- After Core Subsystem shutdown, AcpiSubsystemStatus returns AE_OK (BZ 356) 3074193267Sjkim- AcpiOsUnmapMemory for RSDP can be invoked inconsistently (BZ 357) 3075193267Sjkim- Resource Manager should return AE_TYPE for non-device objects (BZ 358) 3076167802Sjkim- Incomplete cleanup branch in AcpiNsEvaluateRelative (BZ 359) 3077193267Sjkim- Use AcpiOsFree instead of ACPI_FREE in AcpiRsSetSrsMethodData (BZ 360) 3078167802Sjkim- Incomplete cleanup branch in AcpiPsParseAml (BZ 361) 3079167802Sjkim- Incomplete cleanup branch in AcpiDsDeleteWalkState (BZ 362) 3080193267Sjkim- AcpiGetTableHeader returns AE_NO_ACPI_TABLES until DSDT is loaded (BZ 365) 3081193267Sjkim- Status of the Global Initialization Handler call not used (BZ 366) 3082193267Sjkim- Incorrect object parameter to Global Initialization Handler (BZ 367) 3083167802Sjkim 3084193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3085193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3086193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3087193267Sjkima much larger code and data size. 3088167802Sjkim 3089167802Sjkim Previous Release: 3090167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3091167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3092167802Sjkim Current Release: 3093167802Sjkim Non-Debug Version: 80.0K Code, 17.7K Data, 97.7K Total 3094167802Sjkim Debug Version: 160.3K Code, 64.9K Data, 225.2K Total 3095167802Sjkim 3096167802Sjkim 3097167802Sjkim2) iASL Compiler/Disassembler and Tools: 3098167802Sjkim 3099193267SjkimModified the parser to allow the names IO, DMA, and IRQ to be used as 3100193267Sjkimnamespace identifiers with no collision with existing resource descriptor 3101193267Sjkimmacro names. This provides compatibility with other ASL compilers and is 3102193267Sjkimmost useful for disassembly/recompilation of existing tables without parse 3103167802Sjkimerrors. (With assistance from Thomas Renninger) 3104167802Sjkim 3105193267SjkimDisassembler: fixed an incorrect disassembly problem with the 3106193267SjkimDataTableRegion and CopyObject operators. Fixed a possible fault during 3107193267Sjkimdisassembly of some Alias operators. 3108167802Sjkim 3109167802Sjkim---------------------------------------- 3110167802Sjkim12 May 2006. Summary of changes for version 20060512: 3111167802Sjkim 3112167802Sjkim1) ACPI CA Core Subsystem: 3113167802Sjkim 3114193267SjkimReplaced the AcpiOsQueueForExecution interface with a new interface named 3115193267SjkimAcpiOsExecute. The major difference is that the new interface does not have 3116193267Sjkima Priority parameter, this appeared to be useless and has been replaced by a 3117193267SjkimType parameter. The Type tells the host what type of execution is being 3118193267Sjkimrequested, such as global lock handler, notify handler, GPE handler, etc. 3119193267SjkimThis allows the host to queue and execute the request as appropriate for the 3120193267Sjkimrequest type, possibly using different work queues and different priorities 3121193267Sjkimfor the various request types. This enables fixes for multithreading 3122193267Sjkimdeadlock problems such as BZ #5534, and will require changes to all existing 3123193267SjkimOS interface layers. (Alexey Starikovskiy and Bob Moore) 3124167802Sjkim 3125193267SjkimFixed a possible memory leak associated with the support for the so-called 3126193267Sjkim"implicit return" ACPI extension. Reported by FreeBSD, BZ #6514. (Fiodor 3127193267SjkimSuietov) 3128167802Sjkim 3129193267SjkimFixed a problem with the Load() operator where a table load from an 3130193267Sjkimoperation region could overwrite an internal table buffer by up to 7 bytes 3131193267Sjkimand cause alignment faults on IPF systems. (With assistance from Luming Yu) 3132167802Sjkim 3133193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3134193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3135193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3136193267Sjkima much larger code and data size. 3137167802Sjkim 3138167802Sjkim Previous Release: 3139167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3140167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3141167802Sjkim Current Release: 3142167802Sjkim Non-Debug Version: 79.8K Code, 17.7K Data, 97.5K Total 3143167802Sjkim Debug Version: 160.5K Code, 65.1K Data, 225.6K Total 3144167802Sjkim 3145167802Sjkim 3146167802Sjkim 3147167802Sjkim2) iASL Compiler/Disassembler and Tools: 3148167802Sjkim 3149193267SjkimDisassembler: Implemented support to cross reference the internal namespace 3150193267Sjkimand automatically generate ASL External() statements for symbols not defined 3151193267Sjkimwithin the current table being disassembled. This will simplify the 3152193267Sjkimdisassembly and recompilation of interdependent tables such as SSDTs since 3153193267Sjkimthese statements will no longer have to be added manually. 3154167802Sjkim 3155193267SjkimDisassembler: Implemented experimental support to automatically detect 3156193267Sjkiminvocations of external control methods and generate appropriate External() 3157193267Sjkimstatements. This is problematic because the AML cannot be correctly parsed 3158193267Sjkimuntil the number of arguments for each control method is known. Currently, 3159193267Sjkimstandalone method invocations and invocations as the source operand of a 3160193267SjkimStore() statement are supported. 3161167802Sjkim 3162193267SjkimDisassembler: Implemented support for the ASL pseudo-operators LNotEqual, 3163193267SjkimLLessEqual, and LGreaterEqual. Previously disassembled as LNot(LEqual()), 3164193267SjkimLNot(LGreater()), and LNot(LLess()), this makes the disassembled ASL code 3165193267Sjkimmore readable and likely closer to the original ASL source. 3166167802Sjkim 3167167802Sjkim---------------------------------------- 3168167802Sjkim21 April 2006. Summary of changes for version 20060421: 3169167802Sjkim 3170167802Sjkim1) ACPI CA Core Subsystem: 3171167802Sjkim 3172193267SjkimRemoved a device initialization optimization introduced in 20051216 where 3173193267Sjkimthe _STA method was not run unless an _INI was also present for the same 3174193267Sjkimdevice. This optimization could cause problems because it could allow _INI 3175193267Sjkimmethods to be run within a not-present device subtree. (If a not-present 3176193267Sjkimdevice had no _INI, _STA would not be run, the not-present status would not 3177193267Sjkimbe discovered, and the children of the device would be incorrectly 3178167802Sjkimtraversed.) 3179167802Sjkim 3180193267SjkimImplemented a new _STA optimization where namespace subtrees that do not 3181193267Sjkimcontain _INI are identified and ignored during device initialization. 3182193267SjkimSelectively running _STA can significantly improve boot time on large 3183193267Sjkimmachines (with assistance from Len Brown.) 3184167802Sjkim 3185193267SjkimImplemented support for the device initialization case where the returned 3186193267Sjkim_STA flags indicate a device not-present but functioning. In this case, _INI 3187193267Sjkimis not run, but the device children are examined for presence, as per the 3188193267SjkimACPI specification. 3189167802Sjkim 3190193267SjkimImplemented an additional change to the IndexField support in order to 3191193267Sjkimconform to MS behavior. The value written to the Index Register is not 3192193267Sjkimsimply a byte offset, it is a byte offset in units of the access width of 3193193267Sjkimthe parent Index Field. (Fiodor Suietov) 3194167802Sjkim 3195193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateAddress. This 3196193267Sjkiminterface is called during the creation of all AML operation regions, and 3197193267Sjkimallows the host OS to exert control over what addresses it will allow the 3198193267SjkimAML code to access. Operation Regions whose addresses are disallowed will 3199193267Sjkimcause a runtime exception when they are actually accessed (will not affect 3200193267Sjkimor abort table loading.) See oswinxf or osunixxf for an example 3201167802Sjkimimplementation. 3202167802Sjkim 3203193267SjkimDefined and deployed a new OSL interface, AcpiOsValidateInterface. This 3204193267Sjkiminterface allows the host OS to match the various "optional" 3205193267Sjkiminterface/behavior strings for the _OSI predefined control method as 3206193267Sjkimappropriate (with assistance from Bjorn Helgaas.) See oswinxf or osunixxf 3207193267Sjkimfor an example implementation. 3208167802Sjkim 3209193267SjkimRestructured and corrected various problems in the exception handling code 3210193267Sjkimpaths within DsCallControlMethod and DsTerminateControlMethod in dsmethod 3211193267Sjkim(with assistance from Takayoshi Kochi.) 3212167802Sjkim 3213193267SjkimModified the Linux source converter to ignore quoted string literals while 3214193267Sjkimconverting identifiers from mixed to lower case. This will correct problems 3215193267Sjkimwith the disassembler and other areas where such strings must not be 3216193267Sjkimmodified. 3217167802Sjkim 3218193267SjkimThe ACPI_FUNCTION_* macros no longer require quotes around the function 3219193267Sjkimname. This allows the Linux source converter to convert the names, now that 3220193267Sjkimthe converter ignores quoted strings. 3221167802Sjkim 3222193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3223193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3224193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3225193267Sjkima much larger code and data size. 3226193267Sjkim 3227167802Sjkim Previous Release: 3228167802Sjkim 3229167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3230167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3231167802Sjkim Current Release: 3232167802Sjkim Non-Debug Version: 79.7K Code, 17.7K Data, 97.4K Total 3233167802Sjkim Debug Version: 160.1K Code, 65.2K Data, 225.3K Total 3234167802Sjkim 3235167802Sjkim 3236167802Sjkim2) iASL Compiler/Disassembler and Tools: 3237167802Sjkim 3238193267SjkimImplemented 3 new warnings for iASL, and implemented multiple warning levels 3239193267Sjkim(w2 flag). 3240167802Sjkim 3241193267Sjkim1) Ignored timeouts: If the TimeoutValue parameter to Wait or Acquire is not 3242193267SjkimWAIT_FOREVER (0xFFFF) and the code does not examine the return value to 3243193267Sjkimcheck for the possible timeout, a warning is issued. 3244167802Sjkim 3245193267Sjkim2) Useless operators: If an ASL operator does not specify an optional target 3246193267Sjkimoperand and it also does not use the function return value from the 3247193267Sjkimoperator, a warning is issued since the operator effectively does nothing. 3248167802Sjkim 3249193267Sjkim3) Unreferenced objects: If a namespace object is created, but never 3250193267Sjkimreferenced, a warning is issued. This is a warning level 2 since there are 3251193267Sjkimcases where this is ok, such as when a secondary table is loaded that uses 3252193267Sjkimthe unreferenced objects. Even so, care is taken to only flag objects that 3253193267Sjkimdon't look like they will ever be used. For example, the reserved methods 3254193267Sjkim(starting with an underscore) are usually not referenced because it is 3255193267Sjkimexpected that the OS will invoke them. 3256167802Sjkim 3257167802Sjkim---------------------------------------- 3258167802Sjkim31 March 2006. Summary of changes for version 20060331: 3259167802Sjkim 3260167802Sjkim1) ACPI CA Core Subsystem: 3261167802Sjkim 3262193267SjkimImplemented header file support for the following additional ACPI tables: 3263193267SjkimASF!, BOOT, CPEP, DBGP, MCFG, SPCR, SPMI, TCPA, and WDRT. With this support, 3264193267Sjkimall current and known ACPI tables are now defined in the ACPICA headers and 3265193267Sjkimare available for use by device drivers and other software. 3266167802Sjkim 3267193267SjkimImplemented support to allow tables that contain ACPI names with invalid 3268193267Sjkimcharacters to be loaded. Previously, this would cause the table load to 3269193267Sjkimfail, but since there are several known cases of such tables on existing 3270193267Sjkimmachines, this change was made to enable ACPI support for them. Also, this 3271193267Sjkimmatches the behavior of the Microsoft ACPI implementation. 3272167802Sjkim 3273193267SjkimFixed a couple regressions introduced during the memory optimization in the 3274193267Sjkim20060317 release. The namespace node definition required additional 3275193267Sjkimreorganization and an internal datatype that had been changed to 8-bit was 3276193267Sjkimrestored to 32-bit. (Valery Podrezov) 3277167802Sjkim 3278193267SjkimFixed a problem where a null pointer passed to AcpiUtDeleteGenericState 3279193267Sjkimcould be passed through to AcpiOsReleaseObject which is unexpected. Such 3280193267Sjkimnull pointers are now trapped and ignored, matching the behavior of the 3281193267Sjkimprevious implementation before the deployment of AcpiOsReleaseObject. 3282167802Sjkim(Valery Podrezov, Fiodor Suietov) 3283167802Sjkim 3284193267SjkimFixed a memory mapping leak during the deletion of a SystemMemory operation 3285193267Sjkimregion where a cached memory mapping was not deleted. This became a 3286193267Sjkimnoticeable problem for operation regions that are defined within frequently 3287193267Sjkimused control methods. (Dana Meyers) 3288167802Sjkim 3289193267SjkimReorganized the ACPI table header files into two main files: one for the 3290193267SjkimACPI tables consumed by the ACPICA core, and another for the miscellaneous 3291193267SjkimACPI tables that are consumed by the drivers and other software. The various 3292193267SjkimFADT definitions were merged into one common section and three different 3293193267Sjkimtables (ACPI 1.0, 1.0+, and 2.0) 3294167802Sjkim 3295193267SjkimExample Code and Data Size: These are the sizes for the OS-independent 3296193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The 3297193267Sjkimdebug version of the code includes the debug output trace mechanism and has 3298193267Sjkima much larger code and data size. 3299167802Sjkim 3300167802Sjkim Previous Release: 3301167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3302167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3303167802Sjkim Current Release: 3304167802Sjkim Non-Debug Version: 81.1K Code, 17.7K Data, 98.8K Total 3305167802Sjkim Debug Version: 158.9K Code, 64.9K Data, 223.8K Total 3306167802Sjkim 3307167802Sjkim 3308167802Sjkim2) iASL Compiler/Disassembler and Tools: 3309167802Sjkim 3310193267SjkimDisassembler: Implemented support to decode and format all non-AML ACPI 3311193267Sjkimtables (tables other than DSDTs and SSDTs.) This includes the new tables 3312193267Sjkimadded to the ACPICA headers, therefore all current and known ACPI tables are 3313193267Sjkimsupported. 3314167802Sjkim 3315193267SjkimDisassembler: The change to allow ACPI names with invalid characters also 3316193267Sjkimenables the disassembly of such tables. Invalid characters within names are 3317193267Sjkimchanged to '*' to make the name printable; the iASL compiler will still 3318193267Sjkimgenerate an error for such names, however, since this is an invalid ACPI 3319193267Sjkimcharacter. 3320167802Sjkim 3321193267SjkimImplemented an option for AcpiXtract (-a) to extract all tables found in the 3322193267Sjkiminput file. The default invocation extracts only the DSDTs and SSDTs. 3323167802Sjkim 3324193267SjkimFixed a couple of gcc generation issues for iASL and AcpiExec and added a 3325193267Sjkimmakefile for the AcpiXtract utility. 3326167802Sjkim 3327167802Sjkim---------------------------------------- 3328167802Sjkim17 March 2006. Summary of changes for version 20060317: 3329167802Sjkim 3330167802Sjkim1) ACPI CA Core Subsystem: 3331167802Sjkim 3332193267SjkimImplemented the use of a cache object for all internal namespace nodes. 3333193267SjkimSince there are about 1000 static nodes in a typical system, this will 3334193267Sjkimdecrease memory use for cache implementations that minimize per-allocation 3335193267Sjkimoverhead (such as a slab allocator.) 3336167802Sjkim 3337193267SjkimRemoved the reference count mechanism for internal namespace nodes, since it 3338193267Sjkimwas deemed unnecessary. This reduces the size of each namespace node by 3339193267Sjkimabout 5%-10% on all platforms. Nodes are now 20 bytes for the 32-bit case, 3340193267Sjkimand 32 bytes for the 64-bit case. 3341167802Sjkim 3342193267SjkimOptimized several internal data structures to reduce object size on 64-bit 3343193267Sjkimplatforms by packing data within the 64-bit alignment. This includes the 3344193267Sjkimfrequently used ACPI_OPERAND_OBJECT, of which there can be ~1000 static 3345193267Sjkiminstances corresponding to the namespace objects. 3346167802Sjkim 3347193267SjkimAdded two new strings for the predefined _OSI method: "Windows 2001.1 SP1" 3348193267Sjkimand "Windows 2006". 3349167802Sjkim 3350193267SjkimSplit the allocation tracking mechanism out to a separate file, from 3351193267Sjkimutalloc.c to uttrack.c. This mechanism appears to be only useful for 3352193267Sjkimapplication-level code. Kernels may wish to not include uttrack.c in 3353193267Sjkimdistributions. 3354167802Sjkim 3355193267SjkimRemoved all remnants of the obsolete ACPI_REPORT_* macros and the associated 3356193267Sjkimcode. (These macros have been replaced by the ACPI_ERROR and ACPI_WARNING 3357193267Sjkimmacros.) 3358167802Sjkim 3359193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3360193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3361193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3362193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3363193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3364193267Sjkimcompiler options used during generation. 3365167802Sjkim 3366167802Sjkim Previous Release: 3367167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3368167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3369167802Sjkim Current Release: 3370167802Sjkim Non-Debug Version: 80.9K Code, 17.7K Data, 98.6K Total 3371167802Sjkim Debug Version: 158.7K Code, 64.8K Data, 223.5K Total 3372167802Sjkim 3373167802Sjkim 3374167802Sjkim2) iASL Compiler/Disassembler and Tools: 3375167802Sjkim 3376193267SjkimImplemented an ANSI C version of the acpixtract utility. This version will 3377193267Sjkimautomatically extract the DSDT and all SSDTs from the input acpidump text 3378193267Sjkimfile and dump the binary output to separate files. It can also display a 3379193267Sjkimsummary of the input file including the headers for each table found and 3380193267Sjkimwill extract any single ACPI table, with any signature. (See 3381167802Sjkimsource/tools/acpixtract) 3382167802Sjkim 3383167802Sjkim---------------------------------------- 3384167802Sjkim10 March 2006. Summary of changes for version 20060310: 3385167802Sjkim 3386167802Sjkim1) ACPI CA Core Subsystem: 3387167802Sjkim 3388193267SjkimTagged all external interfaces to the subsystem with the new 3389193267SjkimACPI_EXPORT_SYMBOL macro. This macro can be defined as necessary to assist 3390193267Sjkimkernel integration. For Linux, the macro resolves to the EXPORT_SYMBOL 3391193267Sjkimmacro. The default definition is NULL. 3392167802Sjkim 3393193267SjkimAdded the ACPI_THREAD_ID type for the return value from AcpiOsGetThreadId. 3394193267SjkimThis allows the host to define this as necessary to simplify kernel 3395193267Sjkimintegration. The default definition is ACPI_NATIVE_UINT. 3396167802Sjkim 3397193267SjkimFixed two interpreter problems related to error processing, the deletion of 3398193267Sjkimobjects, and placing invalid pointers onto the internal operator result 3399193267Sjkimstack. BZ 6028, 6151 (Valery Podrezov) 3400167802Sjkim 3401193267SjkimIncreased the reference count threshold where a warning is emitted for large 3402193267Sjkimreference counts in order to eliminate unnecessary warnings on systems with 3403193267Sjkimlarge namespaces (especially 64-bit.) Increased the value from 0x400 to 3404193267Sjkim0x800. 3405167802Sjkim 3406193267SjkimDue to universal disagreement as to the meaning of the 'c' in the calloc() 3407193267Sjkimfunction, the ACPI_MEM_CALLOCATE macro has been renamed to 3408193267SjkimACPI_ALLOCATE_ZEROED so that the purpose of the interface is 'clear'. 3409193267SjkimACPI_MEM_ALLOCATE and ACPI_MEM_FREE are renamed to ACPI_ALLOCATE and 3410193267SjkimACPI_FREE. 3411167802Sjkim 3412193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3413193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3414193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3415193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3416193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3417193267Sjkimcompiler options used during generation. 3418167802Sjkim 3419167802Sjkim Previous Release: 3420167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3421167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3422167802Sjkim Current Release: 3423167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3424167802Sjkim Debug Version: 161.6K Code, 65.7K Data, 227.3K Total 3425167802Sjkim 3426167802Sjkim 3427167802Sjkim2) iASL Compiler/Disassembler: 3428167802Sjkim 3429193267SjkimDisassembler: implemented support for symbolic resource descriptor 3430193267Sjkimreferences. If a CreateXxxxField operator references a fixed offset within a 3431193267Sjkimresource descriptor, a name is assigned to the descriptor and the offset is 3432193267Sjkimtranslated to the appropriate resource tag and pathname. The addition of 3433193267Sjkimthis support brings the disassembled code very close to the original ASL 3434193267Sjkimsource code and helps eliminate run-time errors when the disassembled code 3435193267Sjkimis modified (and recompiled) in such a way as to invalidate the original 3436193267Sjkimfixed offsets. 3437167802Sjkim 3438193267SjkimImplemented support for a Descriptor Name as the last parameter to the ASL 3439193267SjkimRegister() macro. This parameter was inadvertently left out of the ACPI 3440193267Sjkimspecification, and will be added for ACPI 3.0b. 3441167802Sjkim 3442193267SjkimFixed a problem where the use of the "_OSI" string (versus the full path 3443193267Sjkim"\_OSI") caused an internal compiler error. ("No back ptr to op") 3444167802Sjkim 3445193267SjkimFixed a problem with the error message that occurs when an invalid string is 3446193267Sjkimused for a _HID object (such as one with an embedded asterisk: "*PNP010A".) 3447193267SjkimThe correct message is now displayed. 3448167802Sjkim 3449167802Sjkim---------------------------------------- 3450167802Sjkim17 February 2006. Summary of changes for version 20060217: 3451167802Sjkim 3452167802Sjkim1) ACPI CA Core Subsystem: 3453167802Sjkim 3454193267SjkimImplemented a change to the IndexField support to match the behavior of the 3455193267SjkimMicrosoft AML interpreter. The value written to the Index register is now a 3456193267Sjkimbyte offset, no longer an index based upon the width of the Data register. 3457193267SjkimThis should fix IndexField problems seen on some machines where the Data 3458193267Sjkimregister is not exactly one byte wide. The ACPI specification will be 3459193267Sjkimclarified on this point. 3460167802Sjkim 3461193267SjkimFixed a problem where several resource descriptor types could overrun the 3462193267Sjkiminternal descriptor buffer due to size miscalculation: VendorShort, 3463193267SjkimVendorLong, and Interrupt. This was noticed on IA64 machines, but could 3464193267Sjkimaffect all platforms. 3465167802Sjkim 3466193267SjkimFixed a problem where individual resource descriptors were misaligned within 3467193267Sjkimthe internal buffer, causing alignment faults on IA64 platforms. 3468167802Sjkim 3469193267SjkimCode and Data Size: These are the sizes for the acpica.lib produced by the 3470193267SjkimMicrosoft Visual C++ 6.0 32-bit compiler. The values do not include any ACPI 3471193267Sjkimdriver or OSPM code. The debug version of the code includes the debug output 3472193267Sjkimtrace mechanism and has a much larger code and data size. Note that these 3473193267Sjkimvalues will vary depending on the efficiency of the compiler and the 3474193267Sjkimcompiler options used during generation. 3475167802Sjkim 3476167802Sjkim Previous Release: 3477167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3478167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3479167802Sjkim Current Release: 3480167802Sjkim Non-Debug Version: 81.0K Code, 17.8K Data, 98.8K Total 3481167802Sjkim Debug Version: 161.4K Code, 65.7K Data, 227.1K Total 3482167802Sjkim 3483167802Sjkim 3484167802Sjkim2) iASL Compiler/Disassembler: 3485167802Sjkim 3486193267SjkimImplemented support for new reserved names: _WDG and _WED are Microsoft 3487193267Sjkimextensions for Windows Instrumentation Management, _TDL is a new ACPI- 3488193267Sjkimdefined method (Throttling Depth Limit.) 3489167802Sjkim 3490193267SjkimFixed a problem where a zero-length VendorShort or VendorLong resource 3491193267Sjkimdescriptor was incorrectly emitted as a descriptor of length one. 3492167802Sjkim 3493167802Sjkim---------------------------------------- 3494167802Sjkim10 February 2006. Summary of changes for version 20060210: 3495167802Sjkim 3496167802Sjkim1) ACPI CA Core Subsystem: 3497167802Sjkim 3498193267SjkimRemoved a couple of extraneous ACPI_ERROR messages that appeared during 3499193267Sjkimnormal execution. These became apparent after the conversion from 3500193267SjkimACPI_DEBUG_PRINT. 3501167802Sjkim 3502193267SjkimFixed a problem where the CreateField operator could hang if the BitIndex or 3503193267SjkimNumBits parameter referred to a named object. (Valery Podrezov, BZ 5359) 3504167802Sjkim 3505193267SjkimFixed a problem where a DeRefOf operation on a buffer object incorrectly 3506193267Sjkimfailed with an exception. This also fixes a couple of related RefOf and 3507193267SjkimDeRefOf issues. (Valery Podrezov, BZ 5360/5392/5387) 3508167802Sjkim 3509193267SjkimFixed a problem where the AE_BUFFER_LIMIT exception was returned instead of 3510193267SjkimAE_STRING_LIMIT on an out-of-bounds Index() operation. (Valery Podrezov, BZ 3511193267Sjkim5480) 3512167802Sjkim 3513193267SjkimImplemented a memory cleanup at the end of the execution of each iteration 3514193267Sjkimof an AML While() loop, preventing the accumulation of outstanding objects. 3515193267Sjkim(Valery Podrezov, BZ 5427) 3516167802Sjkim 3517193267SjkimEliminated a chunk of duplicate code in the object resolution code. (Valery 3518193267SjkimPodrezov, BZ 5336) 3519167802Sjkim 3520167802SjkimFixed several warnings during the 64-bit code generation. 3521167802Sjkim 3522193267SjkimThe AcpiSrc source code conversion tool now inserts one line of whitespace 3523193267Sjkimafter an if() statement that is followed immediately by a comment, improving 3524193267Sjkimreadability of the Linux code. 3525167802Sjkim 3526193267SjkimCode and Data Size: The current and previous library sizes for the core 3527193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3528193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3529193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3530193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3531193267Sjkimand data size. Note that these values will vary depending on the efficiency 3532193267Sjkimof the compiler and the compiler options used during generation. 3533167802Sjkim 3534167802Sjkim Previous Release: 3535167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3536167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3537167802Sjkim Current Release: 3538167802Sjkim Non-Debug Version: 81.1K Code, 17.8K Data, 98.9K Total 3539167802Sjkim Debug Version: 161.3K Code, 65.6K Data, 226.9K Total 3540167802Sjkim 3541167802Sjkim 3542167802Sjkim2) iASL Compiler/Disassembler: 3543167802Sjkim 3544193267SjkimFixed a problem with the disassembly of a BankField operator with a complex 3545193267Sjkimexpression for the BankValue parameter. 3546167802Sjkim 3547167802Sjkim---------------------------------------- 3548167802Sjkim27 January 2006. Summary of changes for version 20060127: 3549167802Sjkim 3550167802Sjkim1) ACPI CA Core Subsystem: 3551167802Sjkim 3552193267SjkimImplemented support in the Resource Manager to allow unresolved namestring 3553193267Sjkimreferences within resource package objects for the _PRT method. This support 3554193267Sjkimis in addition to the previously implemented unresolved reference support 3555193267Sjkimwithin the AML parser. If the interpreter slack mode is enabled, these 3556193267Sjkimunresolved references will be passed through to the caller as a NULL package 3557167802Sjkimentry. 3558167802Sjkim 3559193267SjkimImplemented and deployed new macros and functions for error and warning 3560193267Sjkimmessages across the subsystem. These macros are simpler and generate less 3561193267Sjkimcode than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, 3562193267SjkimACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. The older 3563193267Sjkimmacros remain defined to allow ACPI drivers time to migrate to the new 3564193267Sjkimmacros. 3565167802Sjkim 3566193267SjkimImplemented the ACPI_CPU_FLAGS type to simplify host OS integration of the 3567193267SjkimAcquire/Release Lock OSL interfaces. 3568167802Sjkim 3569193267SjkimFixed a problem where Alias ASL operators are sometimes not correctly 3570193267Sjkimresolved, in both the interpreter and the iASL compiler. 3571167802Sjkim 3572193267SjkimFixed several problems with the implementation of the ConcatenateResTemplate 3573193267SjkimASL operator. As per the ACPI specification, zero length buffers are now 3574193267Sjkimtreated as a single EndTag. One-length buffers always cause a fatal 3575193267Sjkimexception. Non-zero length buffers that do not end with a full 2-byte EndTag 3576167802Sjkimcause a fatal exception. 3577167802Sjkim 3578193267SjkimFixed a possible structure overwrite in the AcpiGetObjectInfo external 3579193267Sjkiminterface. (With assistance from Thomas Renninger) 3580167802Sjkim 3581193267SjkimCode and Data Size: The current and previous library sizes for the core 3582193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3583193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3584193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3585193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3586193267Sjkimand data size. Note that these values will vary depending on the efficiency 3587193267Sjkimof the compiler and the compiler options used during generation. 3588167802Sjkim 3589167802Sjkim Previous Release: 3590167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3591167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3592167802Sjkim Current Release: 3593167802Sjkim Non-Debug Version: 81.0K Code, 17.9K Data, 98.9K Total 3594167802Sjkim Debug Version: 161.3K Code, 65.7K Data, 227.0K Total 3595167802Sjkim 3596167802Sjkim 3597167802Sjkim2) iASL Compiler/Disassembler: 3598167802Sjkim 3599193267SjkimFixed an internal error that was generated for any forward references to ASL 3600193267SjkimAlias objects. 3601167802Sjkim 3602167802Sjkim---------------------------------------- 3603167802Sjkim13 January 2006. Summary of changes for version 20060113: 3604167802Sjkim 3605167802Sjkim1) ACPI CA Core Subsystem: 3606167802Sjkim 3607193267SjkimAdded 2006 copyright to all module headers and signons. This affects 3608193267Sjkimvirtually every file in the ACPICA core subsystem, iASL compiler, and the 3609193267Sjkimutilities. 3610193267Sjkim 3611193267SjkimEnhanced the ACPICA error reporting in order to simplify user migration to 3612193267Sjkimthe non-debug version of ACPICA. Replaced all instances of the 3613193267SjkimACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug 3614193267Sjkimlevels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, 3615193267Sjkimrespectively. This preserves all error and warning messages in the non-debug 3616193267Sjkimversion of the ACPICA code (this has been referred to as the "debug lite" 3617193267Sjkimoption.) Over 200 cases were converted to create a total of over 380 3618193267Sjkimerror/warning messages across the ACPICA code. This increases the code and 3619193267Sjkimdata size of the default non-debug version of the code somewhat (about 13K), 3620193267Sjkimbut all error/warning reporting may be disabled if desired (and code 3621193267Sjkimeliminated) by specifying the ACPI_NO_ERROR_MESSAGES compile-time 3622193267Sjkimconfiguration option. The size of the debug version of ACPICA remains about 3623193267Sjkimthe same. 3624167802Sjkim 3625193267SjkimFixed a memory leak within the AML Debugger "Set" command. One object was 3626193267Sjkimnot properly deleted for every successful invocation of the command. 3627167802Sjkim 3628193267SjkimCode and Data Size: The current and previous library sizes for the core 3629193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3630193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3631193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3632193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3633193267Sjkimand data size. Note that these values will vary depending on the efficiency 3634193267Sjkimof the compiler and the compiler options used during generation. 3635167802Sjkim 3636167802Sjkim Previous Release: 3637167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3638167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3639167802Sjkim Current Release: 3640167802Sjkim Non-Debug Version: 83.1K Code, 18.4K Data, 101.5K Total 3641167802Sjkim Debug Version: 163.2K Code, 66.2K Data, 229.4K Total 3642167802Sjkim 3643167802Sjkim 3644167802Sjkim2) iASL Compiler/Disassembler: 3645167802Sjkim 3646193267SjkimThe compiler now officially supports the ACPI 3.0a specification that was 3647193267Sjkimreleased on December 30, 2005. (Specification is available at www.acpi.info) 3648167802Sjkim 3649167802Sjkim---------------------------------------- 3650167802Sjkim16 December 2005. Summary of changes for version 20051216: 3651167802Sjkim 3652167802Sjkim1) ACPI CA Core Subsystem: 3653167802Sjkim 3654193267SjkimImplemented optional support to allow unresolved names within ASL Package 3655193267Sjkimobjects. A null object is inserted in the package when a named reference 3656193267Sjkimcannot be located in the current namespace. Enabled via the interpreter 3657193267Sjkimslack flag, this should eliminate AE_NOT_FOUND exceptions seen on machines 3658193267Sjkimthat contain such code. 3659167802Sjkim 3660193267SjkimImplemented an optimization to the initialization sequence that can improve 3661193267Sjkimboot time. During ACPI device initialization, the _STA method is now run if 3662193267Sjkimand only if the _INI method exists. The _STA method is used to determine if 3663193267Sjkimthe device is present; An _INI can only be run if _STA returns present, but 3664193267Sjkimit is a waste of time to run the _STA method if the _INI does not exist. 3665167802Sjkim(Prototype and assistance from Dong Wei) 3666167802Sjkim 3667193267SjkimImplemented use of the C99 uintptr_t for the pointer casting macros if it is 3668193267Sjkimavailable in the current compiler. Otherwise, the default (void *) cast is 3669193267Sjkimused as before. 3670167802Sjkim 3671193267SjkimFixed some possible memory leaks found within the execution path of the 3672193267SjkimBreak, Continue, If, and CreateField operators. (Valery Podrezov) 3673167802Sjkim 3674193267SjkimFixed a problem introduced in the 20051202 release where an exception is 3675193267Sjkimgenerated during method execution if a control method attempts to declare 3676193267Sjkimanother method. 3677167802Sjkim 3678193267SjkimMoved resource descriptor string constants that are used by both the AML 3679193267Sjkimdisassembler and AML debugger to the common utilities directory so that 3680193267Sjkimthese components are independent. 3681167802Sjkim 3682193267SjkimImplemented support in the AcpiExec utility (-e switch) to globally ignore 3683193267Sjkimexceptions during control method execution (method is not aborted.) 3684167802Sjkim 3685193267SjkimAdded the rsinfo.c source file to the AcpiExec makefile for Linux/Unix 3686193267Sjkimgeneration. 3687167802Sjkim 3688193267SjkimCode and Data Size: The current and previous library sizes for the core 3689193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3690193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3691193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3692193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3693193267Sjkimand data size. Note that these values will vary depending on the efficiency 3694193267Sjkimof the compiler and the compiler options used during generation. 3695167802Sjkim 3696167802Sjkim Previous Release: 3697167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3698167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3699167802Sjkim Current Release: 3700167802Sjkim Non-Debug Version: 76.6K Code, 12.3K Data, 88.9K Total 3701167802Sjkim Debug Version: 163.7K Code, 67.5K Data, 231.2K Total 3702167802Sjkim 3703167802Sjkim 3704167802Sjkim2) iASL Compiler/Disassembler: 3705167802Sjkim 3706193267SjkimFixed a problem where a CPU stack overflow fault could occur if a recursive 3707193267Sjkimmethod call was made from within a Return statement. 3708167802Sjkim 3709167802Sjkim---------------------------------------- 3710167802Sjkim02 December 2005. Summary of changes for version 20051202: 3711167802Sjkim 3712167802Sjkim1) ACPI CA Core Subsystem: 3713167802Sjkim 3714193267SjkimModified the parsing of control methods to no longer create namespace 3715193267Sjkimobjects during the first pass of the parse. Objects are now created only 3716193267Sjkimduring the execute phase, at the moment the namespace creation operator is 3717193267Sjkimencountered in the AML (Name, OperationRegion, CreateByteField, etc.) This 3718193267Sjkimshould eliminate ALREADY_EXISTS exceptions seen on some machines where 3719193267Sjkimreentrant control methods are protected by an AML mutex. The mutex will now 3720193267Sjkimcorrectly block multiple threads from attempting to create the same object 3721193267Sjkimmore than once. 3722167802Sjkim 3723193267SjkimIncreased the number of available Owner Ids for namespace object tracking 3724193267Sjkimfrom 32 to 255. This should eliminate the OWNER_ID_LIMIT exceptions seen on 3725193267Sjkimsome machines with a large number of ACPI tables (either static or dynamic). 3726167802Sjkim 3727193267SjkimFixed a problem with the AcpiExec utility where a fault could occur when the 3728193267Sjkim-b switch (batch mode) is used. 3729167802Sjkim 3730193267SjkimEnhanced the namespace dump routine to output the owner ID for each 3731193267Sjkimnamespace object. 3732167802Sjkim 3733193267SjkimCode and Data Size: The current and previous library sizes for the core 3734193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3735193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3736193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3737193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3738193267Sjkimand data size. Note that these values will vary depending on the efficiency 3739193267Sjkimof the compiler and the compiler options used during generation. 3740167802Sjkim 3741167802Sjkim Previous Release: 3742167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3743167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3744167802Sjkim Current Release: 3745167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3746167802Sjkim Debug Version: 163.2K Code, 67.4K Data, 230.6K Total 3747167802Sjkim 3748167802Sjkim 3749167802Sjkim2) iASL Compiler/Disassembler: 3750167802Sjkim 3751193267SjkimFixed a parse error during compilation of certain Switch/Case constructs. To 3752193267Sjkimsimplify the parse, the grammar now allows for multiple Default statements 3753193267Sjkimand this error is now detected and flagged during the analysis phase. 3754167802Sjkim 3755193267SjkimDisassembler: The disassembly now includes the contents of the original 3756193267Sjkimtable header within a comment at the start of the file. This includes the 3757193267Sjkimname and version of the original ASL compiler. 3758167802Sjkim 3759167802Sjkim---------------------------------------- 3760167802Sjkim17 November 2005. Summary of changes for version 20051117: 3761167802Sjkim 3762167802Sjkim1) ACPI CA Core Subsystem: 3763167802Sjkim 3764193267SjkimFixed a problem in the AML parser where the method thread count could be 3765193267Sjkimdecremented below zero if any errors occurred during the method parse phase. 3766193267SjkimThis should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. 3767193267SjkimThis also fixed a related regression with the mechanism that detects and 3768193267Sjkimcorrects methods that cannot properly handle reentrancy (related to the 3769193267Sjkimdeployment of the new OwnerId mechanism.) 3770167802Sjkim 3771193267SjkimEliminated the pre-parsing of control methods (to detect errors) during 3772193267Sjkimtable load. Related to the problem above, this was causing unwind issues if 3773193267Sjkimany errors occurred during the parse, and it seemed to be overkill. A table 3774193267Sjkimload should not be aborted if there are problems with any single control 3775193267Sjkimmethod, thus rendering this feature rather pointless. 3776167802Sjkim 3777193267SjkimFixed a problem with the new table-driven resource manager where an internal 3778193267Sjkimbuffer overflow could occur for small resource templates. 3779167802Sjkim 3780193267SjkimImplemented a new external interface, AcpiGetVendorResource. This interface 3781193267Sjkimwill find and return a vendor-defined resource descriptor within a _CRS or 3782193267Sjkim_PRS method via an ACPI 3.0 UUID match. With assistance from Bjorn Helgaas. 3783167802Sjkim 3784193267SjkimRemoved the length limit (200) on string objects as per the upcoming ACPI 3785193267Sjkim3.0A specification. This affects the following areas of the interpreter: 1) 3786193267Sjkimany implicit conversion of a Buffer to a String, 2) a String object result 3787193267Sjkimof the ASL Concatentate operator, 3) the String object result of the ASL 3788193267SjkimToString operator. 3789167802Sjkim 3790193267SjkimFixed a problem in the Windows OS interface layer (OSL) where a WAIT_FOREVER 3791193267Sjkimon a semaphore object would incorrectly timeout. This allows the 3792193267Sjkimmultithreading features of the AcpiExec utility to work properly under 3793193267SjkimWindows. 3794167802Sjkim 3795193267SjkimUpdated the Linux makefiles for the iASL compiler and AcpiExec to include 3796193267Sjkimthe recently added file named "utresrc.c". 3797167802Sjkim 3798193267SjkimCode and Data Size: The current and previous library sizes for the core 3799193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3800193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3801193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3802193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3803193267Sjkimand data size. Note that these values will vary depending on the efficiency 3804193267Sjkimof the compiler and the compiler options used during generation. 3805167802Sjkim 3806167802Sjkim Previous Release: 3807167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3808167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3809167802Sjkim Current Release: 3810167802Sjkim Non-Debug Version: 76.3K Code, 12.3K Data, 88.6K Total 3811167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3812167802Sjkim 3813167802Sjkim 3814167802Sjkim2) iASL Compiler/Disassembler: 3815167802Sjkim 3816193267SjkimRemoved the limit (200) on string objects as per the upcoming ACPI 3.0A 3817193267Sjkimspecification. For the iASL compiler, this means that string literals within 3818193267Sjkimthe source ASL can be of any length. 3819167802Sjkim 3820193267SjkimEnhanced the listing output to dump the AML code for resource descriptors 3821193267Sjkimimmediately after the ASL code for each descriptor, instead of in a block at 3822193267Sjkimthe end of the entire resource template. 3823167802Sjkim 3824193267SjkimEnhanced the compiler debug output to dump the entire original parse tree 3825193267Sjkimconstructed during the parse phase, before any transforms are applied to the 3826193267Sjkimtree. The transformed tree is dumped also. 3827167802Sjkim 3828167802Sjkim---------------------------------------- 3829167802Sjkim02 November 2005. Summary of changes for version 20051102: 3830167802Sjkim 3831167802Sjkim1) ACPI CA Core Subsystem: 3832167802Sjkim 3833193267SjkimModified the subsystem initialization sequence to improve GPE support. The 3834193267SjkimGPE initialization has been split into two parts in order to defer execution 3835193267Sjkimof the _PRW methods (Power Resources for Wake) until after the hardware is 3836193267Sjkimfully initialized and the SCI handler is installed. This allows the _PRW 3837193267Sjkimmethods to access fields protected by the Global Lock. This will fix systems 3838193267Sjkimwhere a NO_GLOBAL_LOCK exception has been seen during initialization. 3839167802Sjkim 3840193267SjkimConverted the ACPI internal object disassemble and display code within the 3841193267SjkimAML debugger to fully table-driven operation, reducing code size and 3842193267Sjkimincreasing maintainability. 3843167802Sjkim 3844193267SjkimFixed a regression with the ConcatenateResTemplate() ASL operator introduced 3845193267Sjkimin the 20051021 release. 3846167802Sjkim 3847193267SjkimImplemented support for "local" internal ACPI object types within the 3848193267Sjkimdebugger "Object" command and the AcpiWalkNamespace external interfaces. 3849193267SjkimThese local types include RegionFields, BankFields, IndexFields, Alias, and 3850193267Sjkimreference objects. 3851167802Sjkim 3852193267SjkimMoved common AML resource handling code into a new file, "utresrc.c". This 3853193267Sjkimcode is shared by both the Resource Manager and the AML Debugger. 3854167802Sjkim 3855193267SjkimCode and Data Size: The current and previous library sizes for the core 3856193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3857193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3858193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3859193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3860193267Sjkimand data size. Note that these values will vary depending on the efficiency 3861193267Sjkimof the compiler and the compiler options used during generation. 3862167802Sjkim 3863167802Sjkim Previous Release: 3864167802Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3865167802Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3866167802Sjkim Current Release: 3867167802Sjkim Non-Debug Version: 76.2K Code, 12.3K Data, 88.5K Total 3868167802Sjkim Debug Version: 163.0K Code, 67.4K Data, 230.4K Total 3869167802Sjkim 3870167802Sjkim 3871167802Sjkim2) iASL Compiler/Disassembler: 3872167802Sjkim 3873193267SjkimFixed a problem with very large initializer lists (more than 4000 elements) 3874193267Sjkimfor both Buffer and Package objects where the parse stack could overflow. 3875167802Sjkim 3876193267SjkimEnhanced the pre-compile source code scan for non-ASCII characters to ignore 3877193267Sjkimcharacters within comment fields. The scan is now always performed and is no 3878193267Sjkimlonger optional, detecting invalid characters within a source file 3879193267Sjkimimmediately rather than during the parse phase or later. 3880167802Sjkim 3881193267SjkimEnhanced the ASL grammar definition to force early reductions on all list- 3882193267Sjkimstyle grammar elements so that the overall parse stack usage is greatly 3883193267Sjkimreduced. This should improve performance and reduce the possibility of parse 3884193267Sjkimstack overflow. 3885167802Sjkim 3886193267SjkimEliminated all reduce/reduce conflicts in the iASL parser generation. Also, 3887193267Sjkimwith the addition of a %expected statement, the compiler generates from 3888193267Sjkimsource with no warnings. 3889167802Sjkim 3890193267SjkimFixed a possible segment fault in the disassembler if the input filename 3891193267Sjkimdoes not contain a "dot" extension (Thomas Renninger). 3892167802Sjkim 3893167802Sjkim---------------------------------------- 3894151937Sjkim21 October 2005. Summary of changes for version 20051021: 3895151937Sjkim 3896151937Sjkim1) ACPI CA Core Subsystem: 3897151937Sjkim 3898193267SjkimImplemented support for the EM64T and other x86-64 processors. This 3899193267Sjkimessentially entails recognizing that these processors support non-aligned 3900193267Sjkimmemory transfers. Previously, all 64-bit processors were assumed to lack 3901193267Sjkimhardware support for non-aligned transfers. 3902151937Sjkim 3903193267SjkimCompleted conversion of the Resource Manager to nearly full table-driven 3904193267Sjkimoperation. Specifically, the resource conversion code (convert AML to 3905193267Sjkiminternal format and the reverse) and the debug code to dump internal 3906193267Sjkimresource descriptors are fully table-driven, reducing code and data size and 3907193267Sjkimimproving maintainability. 3908151937Sjkim 3909193267SjkimThe OSL interfaces for Acquire and Release Lock now use a 64-bit flag word 3910193267Sjkimon 64-bit processors instead of a fixed 32-bit word. (With assistance from 3911193267SjkimAlexey Starikovskiy) 3912151937Sjkim 3913193267SjkimImplemented support within the resource conversion code for the Type- 3914193267SjkimSpecific byte within the various ACPI 3.0 *WordSpace macros. 3915151937Sjkim 3916193267SjkimFixed some issues within the resource conversion code for the type-specific 3917193267Sjkimflags for both Memory and I/O address resource descriptors. For Memory, 3918193267Sjkimimplemented support for the MTP and TTP flags. For I/O, split the TRS and 3919193267SjkimTTP flags into two separate fields. 3920151937Sjkim 3921193267SjkimCode and Data Size: The current and previous library sizes for the core 3922193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3923193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 3924193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 3925193267Sjkimcode includes the debug output trace mechanism and has a much larger code 3926193267Sjkimand data size. Note that these values will vary depending on the efficiency 3927193267Sjkimof the compiler and the compiler options used during generation. 3928151937Sjkim 3929151937Sjkim Previous Release: 3930151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 3931151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 3932151937Sjkim Current Release: 3933151937Sjkim Non-Debug Version: 76.1K Code, 12.2K Data, 88.3K Total 3934151937Sjkim Debug Version: 163.5K Code, 67.0K Data, 230.5K Total 3935151937Sjkim 3936151937Sjkim 3937167802Sjkim 3938151937Sjkim2) iASL Compiler/Disassembler: 3939151937Sjkim 3940193267SjkimRelaxed a compiler restriction that disallowed a ResourceIndex byte if the 3941193267Sjkimcorresponding ResourceSource string was not also present in a resource 3942193267Sjkimdescriptor declaration. This restriction caused problems with existing 3943193267SjkimAML/ASL code that includes the Index byte without the string. When such AML 3944193267Sjkimwas disassembled, it could not be compiled without modification. Further, 3945193267Sjkimthe modified code created a resource template with a different size than the 3946193267Sjkimoriginal, breaking code that used fixed offsets into the resource template 3947193267Sjkimbuffer. 3948151937Sjkim 3949193267SjkimRemoved a recent feature of the disassembler to ignore a lone ResourceIndex 3950193267Sjkimbyte. This byte is now emitted if present so that the exact AML can be 3951193267Sjkimreproduced when the disassembled code is recompiled. 3952151937Sjkim 3953193267SjkimImproved comments and text alignment for the resource descriptor code 3954193267Sjkimemitted by the disassembler. 3955151937Sjkim 3956193267SjkimImplemented disassembler support for the ACPI 3.0 AccessSize field within a 3957193267SjkimRegister() resource descriptor. 3958151937Sjkim 3959151937Sjkim---------------------------------------- 3960151937Sjkim30 September 2005. Summary of changes for version 20050930: 3961151937Sjkim 3962151937Sjkim1) ACPI CA Core Subsystem: 3963151937Sjkim 3964193267SjkimCompleted a major overhaul of the Resource Manager code - specifically, 3965193267Sjkimoptimizations in the area of the AML/internal resource conversion code. The 3966193267Sjkimcode has been optimized to simplify and eliminate duplicated code, CPU stack 3967193267Sjkimuse has been decreased by optimizing function parameters and local 3968193267Sjkimvariables, and naming conventions across the manager have been standardized 3969193267Sjkimfor clarity and ease of maintenance (this includes function, parameter, 3970193267Sjkimvariable, and struct/typedef names.) The update may force changes in some 3971193267Sjkimdriver code, depending on how resources are handled by the host OS. 3972151937Sjkim 3973193267SjkimAll Resource Manager dispatch and information tables have been moved to a 3974193267Sjkimsingle location for clarity and ease of maintenance. One new file was 3975193267Sjkimcreated, named "rsinfo.c". 3976151937Sjkim 3977193267SjkimThe ACPI return macros (return_ACPI_STATUS, etc.) have been modified to 3978193267Sjkimguarantee that the argument is not evaluated twice, making them less prone 3979193267Sjkimto macro side-effects. However, since there exists the possibility of 3980193267Sjkimadditional stack use if a particular compiler cannot optimize them (such as 3981193267Sjkimin the debug generation case), the original macros are optionally available. 3982193267SjkimNote that some invocations of the return_VALUE macro may now cause size 3983193267Sjkimmismatch warnings; the return_UINT8 and return_UINT32 macros are provided to 3984193267Sjkimeliminate these. (From Randy Dunlap) 3985151937Sjkim 3986193267SjkimImplemented a new mechanism to enable debug tracing for individual control 3987193267Sjkimmethods. A new external interface, AcpiDebugTrace, is provided to enable 3988193267Sjkimthis mechanism. The intent is to allow the host OS to easily enable and 3989193267Sjkimdisable tracing for problematic control methods. This interface can be 3990193267Sjkimeasily exposed to a user or debugger interface if desired. See the file 3991151937Sjkimpsxface.c for details. 3992151937Sjkim 3993193267SjkimAcpiUtCallocate will now return a valid pointer if a length of zero is 3994193267Sjkimspecified - a length of one is used and a warning is issued. This matches 3995193267Sjkimthe behavior of AcpiUtAllocate. 3996151937Sjkim 3997193267SjkimCode and Data Size: The current and previous library sizes for the core 3998193267Sjkimsubsystem are shown below. These are the code and data sizes for the 3999193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4000193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4001193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4002193267Sjkimand data size. Note that these values will vary depending on the efficiency 4003193267Sjkimof the compiler and the compiler options used during generation. 4004151937Sjkim 4005151937Sjkim Previous Release: 4006151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4007151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4008151937Sjkim Current Release: 4009151937Sjkim Non-Debug Version: 77.1K Code, 12.1K Data, 89.2K Total 4010151937Sjkim Debug Version: 168.0K Code, 68.3K Data, 236.3K Total 4011151937Sjkim 4012151937Sjkim 4013151937Sjkim2) iASL Compiler/Disassembler: 4014151937Sjkim 4015193267SjkimA remark is issued if the effective compile-time length of a package or 4016193267Sjkimbuffer is zero. Previously, this was a warning. 4017151937Sjkim 4018151937Sjkim---------------------------------------- 4019151937Sjkim16 September 2005. Summary of changes for version 20050916: 4020151937Sjkim 4021151937Sjkim1) ACPI CA Core Subsystem: 4022151937Sjkim 4023193267SjkimFixed a problem within the Resource Manager where support for the Generic 4024193267SjkimRegister descriptor was not fully implemented. This descriptor is now fully 4025193267Sjkimrecognized, parsed, disassembled, and displayed. 4026151937Sjkim 4027193267SjkimCompletely restructured the Resource Manager code to utilize table-driven 4028193267Sjkimdispatch and lookup, eliminating many of the large switch() statements. This 4029193267Sjkimreduces overall subsystem code size and code complexity. Affects the 4030193267Sjkimresource parsing and construction, disassembly, and debug dump output. 4031151937Sjkim 4032193267SjkimCleaned up and restructured the debug dump output for all resource 4033193267Sjkimdescriptors. Improved readability of the output and reduced code size. 4034151937Sjkim 4035193267SjkimFixed a problem where changes to internal data structures caused the 4036193267Sjkimoptional ACPI_MUTEX_DEBUG code to fail compilation if specified. 4037151937Sjkim 4038193267SjkimCode and Data Size: The current and previous library sizes for the core 4039193267Sjkimsubsystem are shown below. These are the code and data sizes for the 4040193267Sjkimacpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. These 4041193267Sjkimvalues do not include any ACPI driver or OSPM code. The debug version of the 4042193267Sjkimcode includes the debug output trace mechanism and has a much larger code 4043193267Sjkimand data size. Note that these values will vary depending on the efficiency 4044193267Sjkimof the compiler and the compiler options used during generation. 4045151937Sjkim 4046151937Sjkim Previous Release: 4047151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4048151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4049151937Sjkim Current Release: 4050151937Sjkim Non-Debug Version: 77.5K Code, 12.0K Data, 89.5K Total 4051151937Sjkim Debug Version: 168.1K Code, 68.4K Data, 236.5K Total 4052151937Sjkim 4053151937Sjkim 4054151937Sjkim2) iASL Compiler/Disassembler: 4055151937Sjkim 4056193267SjkimUpdated the disassembler to automatically insert an EndDependentFn() macro 4057193267Sjkiminto the ASL stream if this macro is missing in the original AML code, 4058193267Sjkimsimplifying compilation of the resulting ASL module. 4059151937Sjkim 4060193267SjkimFixed a problem in the disassembler where a disassembled ResourceSource 4061193267Sjkimstring (within a large resource descriptor) was not surrounded by quotes and 4062193267Sjkimnot followed by a comma, causing errors when the resulting ASL module was 4063193267Sjkimcompiled. Also, escape sequences within a ResourceSource string are now 4064193267Sjkimhandled correctly (especially "\\") 4065151937Sjkim 4066151937Sjkim---------------------------------------- 4067151937Sjkim02 September 2005. Summary of changes for version 20050902: 4068151937Sjkim 4069151937Sjkim1) ACPI CA Core Subsystem: 4070151937Sjkim 4071193267SjkimFixed a problem with the internal Owner ID allocation and deallocation 4072193267Sjkimmechanisms for control method execution and recursive method invocation. 4073193267SjkimThis should eliminate the OWNER_ID_LIMIT exceptions and "Invalid OwnerId" 4074193267Sjkimmessages seen on some systems. Recursive method invocation depth is 4075193267Sjkimcurrently limited to 255. (Alexey Starikovskiy) 4076151937Sjkim 4077193267SjkimCompletely eliminated all vestiges of support for the "module-level 4078193267Sjkimexecutable code" until this support is fully implemented and debugged. This 4079193267Sjkimshould eliminate the NO_RETURN_VALUE exceptions seen during table load on 4080193267Sjkimsome systems that invoke this support. 4081151937Sjkim 4082193267SjkimFixed a problem within the resource manager code where the transaction flags 4083193267Sjkimfor a 64-bit address descriptor were handled incorrectly in the type- 4084193267Sjkimspecific flag byte. 4085151937Sjkim 4086193267SjkimConsolidated duplicate code within the address descriptor resource manager 4087193267Sjkimcode, reducing overall subsystem code size. 4088151937Sjkim 4089193267SjkimFixed a fault when using the AML debugger "disassemble" command to 4090193267Sjkimdisassemble individual control methods. 4091151937Sjkim 4092193267SjkimRemoved references to the "release_current" directory within the Unix 4093193267Sjkimrelease package. 4094151937Sjkim 4095193267SjkimCode and Data Size: The current and previous core subsystem library sizes 4096193267Sjkimare shown below. These are the code and data sizes for the acpica.lib 4097193267Sjkimproduced by the Microsoft Visual C++ 6.0 compiler. These values do not 4098193267Sjkiminclude any ACPI driver or OSPM code. The debug version of the code includes 4099193267Sjkimthe debug output trace mechanism and has a much larger code and data size. 4100193267SjkimNote that these values will vary depending on the efficiency of the compiler 4101193267Sjkimand the compiler options used during generation. 4102151937Sjkim 4103151937Sjkim Previous Release: 4104151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4105151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4106151937Sjkim Current Release: 4107151937Sjkim Non-Debug Version: 78.4K Code, 11.8K Data, 90.2K Total 4108151937Sjkim Debug Version: 169.6K Code, 69.9K Data, 239.5K Total 4109151937Sjkim 4110151937Sjkim 4111151937Sjkim2) iASL Compiler/Disassembler: 4112151937Sjkim 4113193267SjkimImplemented an error check for illegal duplicate values in the interrupt and 4114193267Sjkimdma lists for the following ASL macros: Dma(), Irq(), IrqNoFlags(), and 4115193267SjkimInterrupt(). 4116151937Sjkim 4117193267SjkimImplemented error checking for the Irq() and IrqNoFlags() macros to detect 4118193267Sjkimtoo many values in the interrupt list (16 max) and invalid values in the 4119193267Sjkimlist (range 0 - 15) 4120151937Sjkim 4121193267SjkimThe maximum length string literal within an ASL file is now restricted to 4122193267Sjkim200 characters as per the ACPI specification. 4123151937Sjkim 4124193267SjkimFixed a fault when using the -ln option (generate namespace listing). 4125151937Sjkim 4126193267SjkimImplemented an error check to determine if a DescriptorName within a 4127193267Sjkimresource descriptor has already been used within the current scope. 4128151937Sjkim 4129151937Sjkim---------------------------------------- 4130151937Sjkim15 August 2005. Summary of changes for version 20050815: 4131193267Sjkim 4132151937Sjkim1) ACPI CA Core Subsystem: 4133193267Sjkim 4134193267SjkimImplemented a full bytewise compare to determine if a table load request is 4135193267Sjkimattempting to load a duplicate table. The compare is performed if the table 4136193267Sjkimsignatures and table lengths match. This will allow different tables with 4137193267Sjkimthe same OEM Table ID and revision to be loaded - probably against the ACPI 4138193267Sjkimspecification, but discovered in the field nonetheless. 4139193267Sjkim 4140193267SjkimAdded the changes.txt logfile to each of the zipped release packages. 4141193267Sjkim 4142193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4143193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4144193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4145193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4146193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4147193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4148193267Sjkimthe compiler options used during generation. 4149193267Sjkim 4150151937Sjkim Previous Release: 4151151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4152151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4153151937Sjkim Current Release: 4154151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4155151937Sjkim Debug Version: 170.0K Code, 69.9K Data, 239.9K Total 4156193267Sjkim 4157193267Sjkim 4158151937Sjkim2) iASL Compiler/Disassembler: 4159193267Sjkim 4160193267SjkimFixed a problem where incorrect AML code could be generated for Package 4161193267Sjkimobjects if optimization is disabled (via the -oa switch). 4162193267Sjkim 4163193267SjkimFixed a problem with where incorrect AML code is generated for variable- 4164193267Sjkimlength packages when the package length is not specified and the number of 4165193267Sjkiminitializer values is greater than 255. 4166193267Sjkim 4167151937Sjkim 4168151937Sjkim---------------------------------------- 4169151937Sjkim29 July 2005. Summary of changes for version 20050729: 4170151937Sjkim 4171151937Sjkim1) ACPI CA Core Subsystem: 4172151937Sjkim 4173193267SjkimImplemented support to ignore an attempt to install/load a particular ACPI 4174193267Sjkimtable more than once. Apparently there exists BIOS code that repeatedly 4175193267Sjkimattempts to load the same SSDT upon certain events. With assistance from 4176193267SjkimVenkatesh Pallipadi. 4177151937Sjkim 4178193267SjkimRestructured the main interface to the AML parser in order to correctly 4179193267Sjkimhandle all exceptional conditions. This will prevent leakage of the OwnerId 4180193267Sjkimresource and should eliminate the AE_OWNER_ID_LIMIT exceptions seen on some 4181193267Sjkimmachines. With assistance from Alexey Starikovskiy. 4182151937Sjkim 4183193267SjkimSupport for "module level code" has been disabled in this version due to a 4184193267Sjkimnumber of issues that have appeared on various machines. The support can be 4185193267Sjkimenabled by defining ACPI_ENABLE_MODULE_LEVEL_CODE during subsystem 4186193267Sjkimcompilation. When the issues are fully resolved, the code will be enabled by 4187151937Sjkimdefault again. 4188151937Sjkim 4189193267SjkimModified the internal functions for debug print support to define the 4190193267SjkimFunctionName parameter as a (const char *) for compatibility with compiler 4191193267Sjkimbuilt-in macros such as __FUNCTION__, etc. 4192151937Sjkim 4193151937SjkimLinted the entire ACPICA source tree for both 32-bit and 64-bit. 4194151937Sjkim 4195193267SjkimImplemented support to display an object count summary for the AML Debugger 4196193267Sjkimcommands Object and Methods. 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, 11.6K Data, 90.2K Total 4208151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4209151937Sjkim Current Release: 4210151937Sjkim Non-Debug Version: 78.6K Code, 11.7K Data, 90.3K Total 4211151937Sjkim Debug Version: 167.0K Code, 69.9K Data, 236.9K Total 4212151937Sjkim 4213151937Sjkim 4214151937Sjkim2) iASL Compiler/Disassembler: 4215151937Sjkim 4216193267SjkimFixed a regression that appeared in the 20050708 version of the compiler 4217193267Sjkimwhere an error message was inadvertently emitted for invocations of the _OSI 4218193267Sjkimreserved control method. 4219151937Sjkim 4220151937Sjkim---------------------------------------- 4221151937Sjkim08 July 2005. Summary of changes for version 20050708: 4222151937Sjkim 4223151937Sjkim1) ACPI CA Core Subsystem: 4224151937Sjkim 4225193267SjkimThe use of the CPU stack in the debug version of the subsystem has been 4226193267Sjkimconsiderably reduced. Previously, a debug structure was declared in every 4227193267Sjkimfunction that used the debug macros. This structure has been removed in 4228193267Sjkimfavor of declaring the individual elements as parameters to the debug 4229193267Sjkimfunctions. This reduces the cumulative stack use during nested execution of 4230193267SjkimACPI function calls at the cost of a small increase in the code size of the 4231193267Sjkimdebug version of the subsystem. With assistance from Alexey Starikovskiy and 4232193267SjkimLen Brown. 4233151937Sjkim 4234193267SjkimAdded the ACPI_GET_FUNCTION_NAME macro to enable the compiler-dependent 4235193267Sjkimheaders to define a macro that will return the current function name at 4236193267Sjkimruntime (such as __FUNCTION__ or _func_, etc.) The function name is used by 4237193267Sjkimthe debug trace output. If ACPI_GET_FUNCTION_NAME is not defined in the 4238193267Sjkimcompiler-dependent header, the function name is saved on the CPU stack (one 4239193267Sjkimpointer per function.) This mechanism is used because apparently there 4240193267Sjkimexists no standard ANSI-C defined macro that that returns the function name. 4241151937Sjkim 4242193267SjkimRedesigned and reimplemented the "Owner ID" mechanism used to track 4243193267Sjkimnamespace objects created/deleted by ACPI tables and control method 4244193267Sjkimexecution. A bitmap is now used to allocate and free the IDs, thus solving 4245193267Sjkimthe wraparound problem present in the previous implementation. The size of 4246193267Sjkimthe namespace node descriptor was reduced by 2 bytes as a result (Alexey 4247151937SjkimStarikovskiy). 4248151937Sjkim 4249193267SjkimRemoved the UINT32_BIT and UINT16_BIT types that were used for the bitfield 4250193267Sjkimflag definitions within the headers for the predefined ACPI tables. These 4251193267Sjkimhave been replaced by UINT8_BIT in order to increase the code portability of 4252193267Sjkimthe subsystem. If the use of UINT8 remains a problem, we may be forced to 4253193267Sjkimeliminate bitfields entirely because of a lack of portability. 4254151937Sjkim 4255193267SjkimEnhanced the performance of the AcpiUtUpdateObjectReference procedure. This 4256193267Sjkimis a frequently used function and this improvement increases the performance 4257193267Sjkimof the entire subsystem (Alexey Starikovskiy). 4258151937Sjkim 4259193267SjkimFixed several possible memory leaks and the inverse - premature object 4260193267Sjkimdeletion (Alexey Starikovskiy). 4261151937Sjkim 4262193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4263193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4264193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4265193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4266193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4267193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4268193267Sjkimthe compiler options used during generation. 4269151937Sjkim 4270151937Sjkim Previous Release: 4271151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4272151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4273151937Sjkim Current Release: 4274151937Sjkim Non-Debug Version: 78.6K Code, 11.6K Data, 90.2K Total 4275151937Sjkim Debug Version: 170.0K Code, 69.7K Data, 239.7K Total 4276151937Sjkim 4277151937Sjkim---------------------------------------- 4278151937Sjkim24 June 2005. Summary of changes for version 20050624: 4279151937Sjkim 4280151937Sjkim1) ACPI CA Core Subsystem: 4281151937Sjkim 4282193267SjkimModified the new OSL cache interfaces to use ACPI_CACHE_T as the type for 4283193267Sjkimthe host-defined cache object. This allows the OSL implementation to define 4284193267Sjkimand type this object in any manner desired, simplifying the OSL 4285193267Sjkimimplementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for 4286193267SjkimLinux, and should be defined in the OS-specific header file for other 4287193267Sjkimoperating systems as required. 4288151937Sjkim 4289193267SjkimChanged the interface to AcpiOsAcquireObject to directly return the 4290193267Sjkimrequested object as the function return (instead of ACPI_STATUS.) This 4291193267Sjkimchange was made for performance reasons, since this is the purpose of the 4292193267Sjkiminterface in the first place. AcpiOsAcquireObject is now similar to the 4293193267SjkimAcpiOsAllocate interface. 4294151937Sjkim 4295193267SjkimImplemented a new AML debugger command named Businfo. This command displays 4296193267Sjkiminformation about all devices that have an associate _PRT object. The _ADR, 4297193267Sjkim_HID, _UID, and _CID are displayed for these devices. 4298151937Sjkim 4299193267SjkimModified the initialization sequence in AcpiInitializeSubsystem to call the 4300193267SjkimOSL interface AcpiOslInitialize first, before any local initialization. This 4301193267Sjkimchange was required because the global initialization now calls OSL 4302193267Sjkiminterfaces. 4303151937Sjkim 4304193267SjkimEnhanced the Dump command to display the entire contents of Package objects 4305193267Sjkim(including all sub-objects and their values.) 4306151937Sjkim 4307193267SjkimRestructured the code base to split some files because of size and/or 4308193267Sjkimbecause the code logically belonged in a separate file. New files are listed 4309193267Sjkimbelow. All makefiles and project files included in the ACPI CA release have 4310193267Sjkimbeen updated. 4311151937Sjkim utilities/utcache.c /* Local cache interfaces */ 4312151937Sjkim utilities/utmutex.c /* Local mutex support */ 4313151937Sjkim utilities/utstate.c /* State object support */ 4314151937Sjkim interpreter/parser/psloop.c /* Main AML parse loop */ 4315151937Sjkim 4316193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4317193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4318193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4319193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4320193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4321193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4322193267Sjkimthe compiler options used during generation. 4323151937Sjkim 4324151937Sjkim Previous Release: 4325151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4326151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4327151937Sjkim Current Release: 4328151937Sjkim Non-Debug Version: 78.6K Code, 11.5K Data, 90.1K Total 4329151937Sjkim Debug Version: 165.2K Code, 69.6K Data, 234.8K Total 4330151937Sjkim 4331151937Sjkim 4332151937Sjkim2) iASL Compiler/Disassembler: 4333151937Sjkim 4334193267SjkimFixed a regression introduced in version 20050513 where the use of a Package 4335193267Sjkimobject within a Case() statement caused a compile time exception. The 4336193267Sjkimoriginal behavior has been restored (a Match() operator is emitted.) 4337151937Sjkim 4338151937Sjkim---------------------------------------- 4339151937Sjkim17 June 2005. Summary of changes for version 20050617: 4340151937Sjkim 4341151937Sjkim1) ACPI CA Core Subsystem: 4342151937Sjkim 4343193267SjkimMoved the object cache operations into the OS interface layer (OSL) to allow 4344193267Sjkimthe host OS to handle these operations if desired (for example, the Linux 4345193267SjkimOSL will invoke the slab allocator). This support is optional; the compile 4346193267Sjkimtime define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache 4347193267Sjkimcode in the ACPI CA core. The new OSL interfaces are shown below. See 4348193267Sjkimutalloc.c for an example implementation, and acpiosxf.h for the exact 4349193267Sjkiminterface definitions. With assistance from Alexey Starikovskiy. 4350151937Sjkim AcpiOsCreateCache 4351151937Sjkim AcpiOsDeleteCache 4352151937Sjkim AcpiOsPurgeCache 4353151937Sjkim AcpiOsAcquireObject 4354151937Sjkim AcpiOsReleaseObject 4355151937Sjkim 4356193267SjkimModified the interfaces to AcpiOsAcquireLock and AcpiOsReleaseLock to return 4357193267Sjkimand restore a flags parameter. This fits better with many OS lock models. 4358193267SjkimNote: the current execution state (interrupt handler or not) is no longer 4359193267Sjkimpassed to these interfaces. If necessary, the OSL must determine this state 4360193267Sjkimby itself, a simple and fast operation. With assistance from Alexey 4361151937SjkimStarikovskiy. 4362151937Sjkim 4363193267SjkimFixed a problem in the ACPI table handling where a valid XSDT was assumed 4364193267Sjkimpresent if the revision of the RSDP was 2 or greater. According to the ACPI 4365193267Sjkimspecification, the XSDT is optional in all cases, and the table manager 4366193267Sjkimtherefore now checks for both an RSDP >=2 and a valid XSDT pointer. 4367193267SjkimOtherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain 4368193267Sjkimonly the RSDT. 4369151937Sjkim 4370193267SjkimFixed an interpreter problem with the Mid() operator in the case of an input 4371193267Sjkimstring where the resulting output string is of zero length. It now correctly 4372193267Sjkimreturns a valid, null terminated string object instead of a string object 4373193267Sjkimwith a null pointer. 4374151937Sjkim 4375193267SjkimFixed a problem with the control method argument handling to allow a store 4376193267Sjkimto an Arg object that already contains an object of type Device. The Device 4377193267Sjkimobject is now correctly overwritten. Previously, an error was returned. 4378151937Sjkim 4379167802Sjkim 4380193267SjkimEnhanced the debugger Find command to emit object values in addition to the 4381193267Sjkimfound object pathnames. The output format is the same as the dump namespace 4382193267Sjkimcommand. 4383151937Sjkim 4384193267SjkimEnhanced the debugger Set command. It now has the ability to set the value 4385193267Sjkimof any Named integer object in the namespace (Previously, only method locals 4386193267Sjkimand args could be set.) 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: 78.1K Code, 11.6K Data, 89.7K Total 4398151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4399151937Sjkim Current Release: 4400151937Sjkim Non-Debug Version: 78.3K Code, 11.6K Data, 89.9K Total 4401151937Sjkim Debug Version: 164.0K Code, 69.1K Data, 233.1K Total 4402151937Sjkim 4403151937Sjkim 4404151937Sjkim2) iASL Compiler/Disassembler: 4405151937Sjkim 4406193267SjkimFixed a regression in the disassembler where if/else/while constructs were 4407193267Sjkimoutput incorrectly. This problem was introduced in the previous release 4408193267Sjkim(20050526). This problem also affected the single-step disassembly in the 4409193267Sjkimdebugger. 4410151937Sjkim 4411193267SjkimFixed a problem where compiling the reserved _OSI method would randomly (but 4412193267Sjkimrarely) produce compile errors. 4413151937Sjkim 4414193267SjkimEnhanced the disassembler to emit compilable code in the face of incorrect 4415193267SjkimAML resource descriptors. If the optional ResourceSourceIndex is present, 4416193267Sjkimbut the ResourceSource is not, do not emit the ResourceSourceIndex in the 4417193267Sjkimdisassembly. Otherwise, the resulting code cannot be compiled without 4418193267Sjkimerrors. 4419151937Sjkim 4420151937Sjkim---------------------------------------- 4421151937Sjkim26 May 2005. Summary of changes for version 20050526: 4422151937Sjkim 4423151937Sjkim1) ACPI CA Core Subsystem: 4424151937Sjkim 4425193267SjkimImplemented support to execute Type 1 and Type 2 AML opcodes appearing at 4426193267Sjkimthe module level (not within a control method.) These opcodes are executed 4427193267Sjkimexactly once at the time the table is loaded. This type of code was legal up 4428193267Sjkimuntil the release of ACPI 2.0B (2002) and is now supported within ACPI CA in 4429193267Sjkimorder to provide backwards compatibility with earlier BIOS implementations. 4430193267SjkimThis eliminates the "Encountered executable code at module level" warning 4431193267Sjkimthat was previously generated upon detection of such code. 4432151937Sjkim 4433193267SjkimFixed a problem in the interpreter where an AE_NOT_FOUND exception could 4434193267Sjkiminadvertently be generated during the lookup of namespace objects in the 4435193267Sjkimsecond pass parse of ACPI tables and control methods. It appears that this 4436193267Sjkimproblem could occur during the resolution of forward references to namespace 4437193267Sjkimobjects. 4438151937Sjkim 4439193267SjkimAdded the ACPI_MUTEX_DEBUG #ifdef to the AcpiUtReleaseMutex function, 4440193267Sjkimcorresponding to the same #ifdef in the AcpiUtAcquireMutex function. This 4441193267Sjkimallows the deadlock detection debug code to be compiled out in the normal 4442193267Sjkimcase, improving mutex performance (and overall subsystem performance) 4443193267Sjkimconsiderably. 4444151937Sjkim 4445193267SjkimImplemented a handful of miscellaneous fixes for possible memory leaks on 4446193267Sjkimerror conditions and error handling control paths. These fixes were 4447193267Sjkimsuggested by FreeBSD and the Coverity Prevent source code analysis tool. 4448151937Sjkim 4449193267SjkimAdded a check for a null RSDT pointer in AcpiGetFirmwareTable (tbxfroot.c) 4450193267Sjkimto prevent a fault in this error case. 4451151937Sjkim 4452193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4453193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4454193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4455193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4456193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4457193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4458193267Sjkimthe compiler options used during generation. 4459151937Sjkim 4460151937Sjkim Previous Release: 4461151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4462151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4463151937Sjkim Current Release: 4464151937Sjkim Non-Debug Version: 78.1K Code, 11.6K Data, 89.7K Total 4465151937Sjkim Debug Version: 164.0K Code, 69.3K Data, 233.3K Total 4466151937Sjkim 4467151937Sjkim 4468151937Sjkim2) iASL Compiler/Disassembler: 4469151937Sjkim 4470193267SjkimImplemented support to allow Type 1 and Type 2 ASL operators to appear at 4471193267Sjkimthe module level (not within a control method.) These operators will be 4472193267Sjkimexecuted once at the time the table is loaded. This type of code was legal 4473193267Sjkimup until the release of ACPI 2.0B (2002) and is now supported by the iASL 4474193267Sjkimcompiler in order to provide backwards compatibility with earlier BIOS ASL 4475193267Sjkimcode. 4476151937Sjkim 4477193267SjkimThe ACPI integer width (specified via the table revision ID or the -r 4478193267Sjkimoverride, 32 or 64 bits) is now used internally during compile-time constant 4479193267Sjkimfolding to ensure that constants are truncated to 32 bits if necessary. 4480193267SjkimPreviously, the revision ID value was only emitted in the AML table header. 4481151937Sjkim 4482193267SjkimAn error message is now generated for the Mutex and Method operators if the 4483193267SjkimSyncLevel parameter is outside the legal range of 0 through 15. 4484151937Sjkim 4485193267SjkimFixed a problem with the Method operator ParameterTypes list handling (ACPI 4486193267Sjkim3.0). Previously, more than 2 types or 2 arguments generated a syntax error. 4487193267SjkimThe actual underlying implementation of method argument typechecking is 4488193267Sjkimstill under development, however. 4489151937Sjkim 4490151937Sjkim---------------------------------------- 4491151937Sjkim13 May 2005. Summary of changes for version 20050513: 4492151937Sjkim 4493151937Sjkim1) ACPI CA Core Subsystem: 4494151937Sjkim 4495193267SjkimImplemented support for PCI Express root bridges -- added support for device 4496193267SjkimPNP0A08 in the root bridge search within AcpiEvPciConfigRegionSetup. 4497151937Sjkim 4498193267SjkimThe interpreter now automatically truncates incoming 64-bit constants to 32 4499193267Sjkimbits if currently executing out of a 32-bit ACPI table (Revision < 2). This 4500193267Sjkimalso affects the iASL compiler constant folding. (Note: as per below, the 4501193267SjkimiASL compiler no longer allows 64-bit constants within 32-bit tables.) 4502151937Sjkim 4503193267SjkimFixed a problem where string and buffer objects with "static" pointers 4504193267Sjkim(pointers to initialization data within an ACPI table) were not handled 4505193267Sjkimconsistently. The internal object copy operation now always copies the data 4506193267Sjkimto a newly allocated buffer, regardless of whether the source object is 4507193267Sjkimstatic or not. 4508151937Sjkim 4509193267SjkimFixed a problem with the FromBCD operator where an implicit result 4510193267Sjkimconversion was improperly performed while storing the result to the target 4511193267Sjkimoperand. Since this is an "explicit conversion" operator, the implicit 4512193267Sjkimconversion should never be performed on the output. 4513151937Sjkim 4514193267SjkimFixed a problem with the CopyObject operator where a copy to an existing 4515193267Sjkimnamed object did not always completely overwrite the existing object stored 4516193267Sjkimat name. Specifically, a buffer-to-buffer copy did not delete the existing 4517193267Sjkimbuffer. 4518151937Sjkim 4519193267SjkimReplaced "InterruptLevel" with "InterruptNumber" in all GPE interfaces and 4520193267Sjkimstructs for consistency. 4521151937Sjkim 4522193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4523193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4524193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4525193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4526193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4527193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4528193267Sjkimthe compiler options used during generation. 4529151937Sjkim 4530151937Sjkim Previous Release: 4531151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4532151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4533151937Sjkim Current Release: (Same sizes) 4534151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4535151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4536151937Sjkim 4537151937Sjkim 4538151937Sjkim2) iASL Compiler/Disassembler: 4539151937Sjkim 4540193267SjkimThe compiler now emits a warning if an attempt is made to generate a 64-bit 4541193267Sjkiminteger constant from within a 32-bit ACPI table (Revision < 2). The integer 4542193267Sjkimis truncated to 32 bits. 4543151937Sjkim 4544193267SjkimFixed a problem with large package objects: if the static length of the 4545193267Sjkimpackage is greater than 255, the "variable length package" opcode is 4546193267Sjkimemitted. Previously, this caused an error. This requires an update to the 4547193267SjkimACPI spec, since it currently (incorrectly) states that packages larger than 4548193267Sjkim255 elements are not allowed. 4549151937Sjkim 4550193267SjkimThe disassembler now correctly handles variable length packages and packages 4551193267Sjkimlarger than 255 elements. 4552151937Sjkim 4553151937Sjkim---------------------------------------- 4554151937Sjkim08 April 2005. Summary of changes for version 20050408: 4555151937Sjkim 4556151937Sjkim1) ACPI CA Core Subsystem: 4557151937Sjkim 4558193267SjkimFixed three cases in the interpreter where an "index" argument to an ASL 4559193267Sjkimfunction was still (internally) 32 bits instead of the required 64 bits. 4560193267SjkimThis was the Index argument to the Index, Mid, and Match operators. 4561151937Sjkim 4562193267SjkimThe "strupr" function is now permanently local (AcpiUtStrupr), since this is 4563193267Sjkimnot a POSIX-defined function and not present in most kernel-level C 4564193267Sjkimlibraries. All references to the C library strupr function have been removed 4565193267Sjkimfrom the headers. 4566151937Sjkim 4567193267SjkimCompleted the deployment of static functions/prototypes. All prototypes with 4568193267Sjkimthe static attribute have been moved from the headers to the owning C file. 4569151937Sjkim 4570193267SjkimImplemented an extract option (-e) for the AcpiBin utility (AML binary 4571193267Sjkimutility). This option allows the utility to extract individual ACPI tables 4572193267Sjkimfrom the output of AcpiDmp. It provides the same functionality of the 4573193267Sjkimacpixtract.pl perl script without the worry of setting the correct perl 4574193267Sjkimoptions. AcpiBin runs on Windows and has not yet been generated/validated in 4575193267Sjkimthe Linux/Unix environment (but should be soon). 4576193267Sjkim 4577193267SjkimUpdated and fixed the table dump option for AcpiBin (-d). This option 4578193267Sjkimconverts a single ACPI table to a hex/ascii file, similar to the output of 4579193267SjkimAcpiDmp. 4580151937Sjkim 4581193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4582193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4583193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4584193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4585193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4586193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4587193267Sjkimthe compiler options used during generation. 4588151937Sjkim 4589151937Sjkim Previous Release: 4590151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4591151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4592151937Sjkim Current Release: 4593151937Sjkim Non-Debug Version: 78.2K Code, 11.6K Data, 89.8K Total 4594151937Sjkim Debug Version: 163.7K Code, 69.3K Data, 233.0K Total 4595151937Sjkim 4596151937Sjkim 4597151937Sjkim2) iASL Compiler/Disassembler: 4598151937Sjkim 4599193267SjkimDisassembler fix: Added a check to ensure that the table length found in the 4600193267SjkimACPI table header within the input file is not longer than the actual input 4601193267Sjkimfile size. This indicates some kind of file or table corruption. 4602151937Sjkim 4603151937Sjkim---------------------------------------- 4604151937Sjkim29 March 2005. Summary of changes for version 20050329: 4605151937Sjkim 4606151937Sjkim1) ACPI CA Core Subsystem: 4607151937Sjkim 4608193267SjkimAn error is now generated if an attempt is made to create a Buffer Field of 4609193267Sjkimlength zero (A CreateField with a length operand of zero.) 4610151937Sjkim 4611193267SjkimThe interpreter now issues a warning whenever executable code at the module 4612193267Sjkimlevel is detected during ACPI table load. This will give some idea of the 4613193267Sjkimprevalence of this type of code. 4614151937Sjkim 4615193267SjkimImplemented support for references to named objects (other than control 4616193267Sjkimmethods) within package objects. 4617151937Sjkim 4618193267SjkimEnhanced package object output for the debug object. Package objects are now 4619193267Sjkimcompletely dumped, showing all elements. 4620151937Sjkim 4621193267SjkimEnhanced miscellaneous object output for the debug object. Any object can 4622193267Sjkimnow be written to the debug object (for example, a device object can be 4623193267Sjkimwritten, and the type of the object will be displayed.) 4624151937Sjkim 4625193267SjkimThe "static" qualifier has been added to all local functions across both the 4626193267Sjkimcore subsystem and the iASL compiler. 4627151937Sjkim 4628193267SjkimThe number of "long" lines (> 80 chars) within the source has been 4629193267Sjkimsignificantly reduced, by about 1/3. 4630151937Sjkim 4631193267SjkimCleaned up all header files to ensure that all CA/iASL functions are 4632193267Sjkimprototyped (even static functions) and the formatting is consistent. 4633151937Sjkim 4634151937SjkimTwo new header files have been added, acopcode.h and acnames.h. 4635151937Sjkim 4636151937SjkimRemoved several obsolete functions that were no longer used. 4637151937Sjkim 4638193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4639193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4640193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4641193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4642193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4643193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4644193267Sjkimthe compiler options used during generation. 4645151937Sjkim 4646151937Sjkim Previous Release: 4647151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4648151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4649151937Sjkim Current Release: 4650151937Sjkim Non-Debug Version: 78.0K Code, 11.6K Data, 89.6K Total 4651151937Sjkim Debug Version: 163.5K Code, 69.3K Data, 232.8K Total 4652151937Sjkim 4653151937Sjkim 4654167802Sjkim 4655151937Sjkim2) iASL Compiler/Disassembler: 4656151937Sjkim 4657193267SjkimFixed a problem with the resource descriptor generation/support. For the 4658193267SjkimResourceSourceIndex and the ResourceSource fields, both must be present, or 4659193267Sjkimboth must be not present - can't have one without the other. 4660151937Sjkim 4661193267SjkimThe compiler now returns non-zero from the main procedure if any errors have 4662193267Sjkimoccurred during the compilation. 4663151937Sjkim 4664151937Sjkim 4665151937Sjkim---------------------------------------- 4666151937Sjkim09 March 2005. Summary of changes for version 20050309: 4667151937Sjkim 4668151937Sjkim1) ACPI CA Core Subsystem: 4669151937Sjkim 4670193267SjkimThe string-to-buffer implicit conversion code has been modified again after 4671193267Sjkima change to the ACPI specification. In order to match the behavior of the 4672193267Sjkimother major ACPI implementation, the target buffer is no longer truncated if 4673193267Sjkimthe source string is smaller than an existing target buffer. This change 4674193267Sjkimrequires an update to the ACPI spec, and should eliminate the recent 4675151937SjkimAE_AML_BUFFER_LIMIT issues. 4676151937Sjkim 4677193267SjkimThe "implicit return" support was rewritten to a new algorithm that solves 4678193267Sjkimthe general case. Rather than attempt to determine when a method is about to 4679193267Sjkimexit, the result of every ASL operator is saved momentarily until the very 4680193267Sjkimnext ASL operator is executed. Therefore, no matter how the method exits, 4681193267Sjkimthere will always be a saved implicit return value. This feature is only 4682193267Sjkimenabled with the AcpiGbl_EnableInterpreterSlack flag, and should eliminate 4683193267SjkimAE_AML_NO_RETURN_VALUE errors when enabled. 4684151937Sjkim 4685193267SjkimImplemented implicit conversion support for the predicate (operand) of the 4686193267SjkimIf, Else, and While operators. String and Buffer arguments are automatically 4687193267Sjkimconverted to Integers. 4688151937Sjkim 4689193267SjkimChanged the string-to-integer conversion behavior to match the new ACPI 4690193267Sjkimerrata: "If no integer object exists, a new integer is created. The ASCII 4691193267Sjkimstring is interpreted as a hexadecimal constant. Each string character is 4692193267Sjkiminterpreted as a hexadecimal value ('0'-'9', 'A'-'F', 'a', 'f'), starting 4693193267Sjkimwith the first character as the most significant digit, and ending with the 4694193267Sjkimfirst non-hexadecimal character or end-of-string." This means that the first 4695193267Sjkimnon-hex character terminates the conversion and this is the code that was 4696193267Sjkimchanged. 4697151937Sjkim 4698193267SjkimFixed a problem where the ObjectType operator would fail (fault) when used 4699193267Sjkimon an Index of a Package which pointed to a null package element. The 4700193267Sjkimoperator now properly returns zero (Uninitialized) in this case. 4701151937Sjkim 4702193267SjkimFixed a problem where the While operator used excessive memory by not 4703193267Sjkimproperly popping the result stack during execution. There was no memory leak 4704193267Sjkimafter execution, however. (Code provided by Valery Podrezov.) 4705151937Sjkim 4706193267SjkimFixed a problem where references to control methods within Package objects 4707193267Sjkimcaused the method to be invoked, instead of producing a reference object 4708193267Sjkimpointing to the method. 4709151937Sjkim 4710193267SjkimRestructured and simplified the pswalk.c module (AcpiPsDeleteParseTree) to 4711193267Sjkimimprove performance and reduce code size. (Code provided by Alexey 4712193267SjkimStarikovskiy.) 4713151937Sjkim 4714193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4715193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4716193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4717193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4718193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4719193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4720193267Sjkimthe compiler options used during generation. 4721151937Sjkim 4722151937Sjkim Previous Release: 4723151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4724151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4725151937Sjkim Current Release: 4726151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4727151937Sjkim Debug Version: 165.4K Code, 69.7K Data, 236.1K Total 4728151937Sjkim 4729151937Sjkim 4730151937Sjkim2) iASL Compiler/Disassembler: 4731151937Sjkim 4732193267SjkimFixed a problem with the Return operator with no arguments. Since the AML 4733193267Sjkimgrammar for the byte encoding requires an operand for the Return opcode, the 4734193267Sjkimcompiler now emits a Return(Zero) for this case. An ACPI specification 4735193267Sjkimupdate has been written for this case. 4736151937Sjkim 4737193267SjkimFor tables other than the DSDT, namepath optimization is automatically 4738193267Sjkimdisabled. This is because SSDTs can be loaded anywhere in the namespace, the 4739193267Sjkimcompiler has no knowledge of where, and thus cannot optimize namepaths. 4740151937Sjkim 4741193267SjkimAdded "ProcessorObj" to the ObjectTypeKeyword list. This object type was 4742193267Sjkiminadvertently omitted from the ACPI specification, and will require an 4743193267Sjkimupdate to the spec. 4744151937Sjkim 4745193267SjkimThe source file scan for ASCII characters is now optional (-a). This change 4746193267Sjkimwas made because some vendors place non-ascii characters within comments. 4747193267SjkimHowever, the scan is simply a brute-force byte compare to ensure all 4748193267Sjkimcharacters in the file are in the range 0x00 to 0x7F. 4749151937Sjkim 4750193267SjkimFixed a problem with the CondRefOf operator where the compiler was 4751193267Sjkiminappropriately checking for the existence of the target. Since the point of 4752193267Sjkimthe operator is to check for the existence of the target at run-time, the 4753193267Sjkimcompiler no longer checks for the target existence. 4754151937Sjkim 4755193267SjkimFixed a problem where errors generated from the internal AML interpreter 4756193267Sjkimduring constant folding were not handled properly, causing a fault. 4757151937Sjkim 4758193267SjkimFixed a problem with overly aggressive range checking for the Stall 4759193267Sjkimoperator. The valid range (max 255) is now only checked if the operand is of 4760193267Sjkimtype Integer. All other operand types cannot be statically checked. 4761151937Sjkim 4762193267SjkimFixed a problem where control method references within the RefOf, DeRefOf, 4763193267Sjkimand ObjectType operators were not treated properly. They are now treated as 4764193267Sjkimactual references, not method invocations. 4765151937Sjkim 4766193267SjkimFixed and enhanced the "list namespace" option (-ln). This option was broken 4767193267Sjkima number of releases ago. 4768151937Sjkim 4769193267SjkimImproved error handling for the Field, IndexField, and BankField operators. 4770193267SjkimThe compiler now cleanly reports and recovers from errors in the field 4771193267Sjkimcomponent (FieldUnit) list. 4772151937Sjkim 4773193267SjkimFixed a disassembler problem where the optional ResourceDescriptor fields 4774193267SjkimTRS and TTP were not always handled correctly. 4775151937Sjkim 4776151937SjkimDisassembler - Comments in output now use "//" instead of "/*" 4777151937Sjkim 4778151937Sjkim---------------------------------------- 4779151937Sjkim28 February 2005. Summary of changes for version 20050228: 4780151937Sjkim 4781151937Sjkim1) ACPI CA Core Subsystem: 4782151937Sjkim 4783193267SjkimFixed a problem where the result of an Index() operator (an object 4784193267Sjkimreference) must increment the reference count on the target object for the 4785193267Sjkimlife of the object reference. 4786151937Sjkim 4787193267SjkimImplemented AML Interpreter and Debugger support for the new ACPI 3.0 4788193267SjkimExtended Address (IO, Memory, Space), QwordSpace, DwordSpace, and WordSpace 4789193267Sjkimresource descriptors. 4790151937Sjkim 4791193267SjkimImplemented support in the _OSI method for the ACPI 3.0 "Extended Address 4792193267SjkimSpace Descriptor" string, indicating interpreter support for the descriptors 4793193267Sjkimabove. 4794151937Sjkim 4795151937SjkimImplemented header support for the new ACPI 3.0 FADT flag bits. 4796151937Sjkim 4797193267SjkimImplemented header support for the new ACPI 3.0 PCI Express bits for the PM1 4798193267Sjkimstatus/enable registers. 4799151937Sjkim 4800193267SjkimUpdated header support for the MADT processor local Apic struct and MADT 4801193267Sjkimplatform interrupt source struct for new ACPI 3.0 fields. 4802151937Sjkim 4803151937SjkimImplemented header support for the SRAT and SLIT ACPI tables. 4804151937Sjkim 4805193267SjkimImplemented the -s switch in AcpiExec to enable the "InterpreterSlack" flag 4806193267Sjkimat runtime. 4807151937Sjkim 4808193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4809193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4810193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4811193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4812193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4813193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4814193267Sjkimthe compiler options used during generation. 4815151937Sjkim 4816151937Sjkim Previous Release: 4817151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4818151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4819151937Sjkim Current Release: 4820151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 4821151937Sjkim Debug Version: 165.4K Code, 69.6K Data, 236.0K Total 4822151937Sjkim 4823151937Sjkim 4824151937Sjkim2) iASL Compiler/Disassembler: 4825151937Sjkim 4826193267SjkimFixed a problem with the internal 64-bit String-to-integer conversion with 4827193267Sjkimstrings less than two characters long. 4828151937Sjkim 4829193267SjkimFixed a problem with constant folding where the result of the Index() 4830193267Sjkimoperator can not be considered a constant. This means that Index() cannot be 4831193267Sjkima type3 opcode and this will require an update to the ACPI specification. 4832151937Sjkim 4833193267SjkimDisassembler: Implemented support for the TTP, MTP, and TRS resource 4834193267Sjkimdescriptor fields. These fields were inadvertently ignored and not output in 4835193267Sjkimthe disassembly of the resource descriptor. 4836151937Sjkim 4837151937Sjkim 4838151937Sjkim ---------------------------------------- 4839151937Sjkim11 February 2005. Summary of changes for version 20050211: 4840151937Sjkim 4841151937Sjkim1) ACPI CA Core Subsystem: 4842151937Sjkim 4843193267SjkimImplemented ACPI 3.0 support for implicit conversion within the Match() 4844193267Sjkimoperator. MatchObjects can now be of type integer, buffer, or string instead 4845193267Sjkimof just type integer. Package elements are implicitly converted to the type 4846193267Sjkimof the MatchObject. This change aligns the behavior of Match() with the 4847193267Sjkimbehavior of the other logical operators (LLess(), etc.) It also requires an 4848193267Sjkimerrata change to the ACPI specification as this support was intended for 4849193267SjkimACPI 3.0, but was inadvertently omitted. 4850151937Sjkim 4851193267SjkimFixed a problem with the internal implicit "to buffer" conversion. Strings 4852193267Sjkimthat are converted to buffers will cause buffer truncation if the string is 4853193267Sjkimsmaller than the target buffer. Integers that are converted to buffers will 4854193267Sjkimnot cause buffer truncation, only zero extension (both as per the ACPI 4855193267Sjkimspec.) The problem was introduced when code was added to truncate the 4856193267Sjkimbuffer, but this should not be performed in all cases, only the string case. 4857151937Sjkim 4858193267SjkimFixed a problem with the Buffer and Package operators where the interpreter 4859193267Sjkimwould get confused if two such operators were used as operands to an ASL 4860193267Sjkimoperator (such as LLess(Buffer(1){0},Buffer(1){1}). The internal result 4861193267Sjkimstack was not being popped after the execution of these operators, resulting 4862193267Sjkimin an AE_NO_RETURN_VALUE exception. 4863151937Sjkim 4864193267SjkimFixed a problem with constructs of the form Store(Index(...),...). The 4865193267Sjkimreference object returned from Index was inadvertently resolved to an actual 4866193267Sjkimvalue. This problem was introduced in version 20050114 when the behavior of 4867193267SjkimStore() was modified to restrict the object types that can be used as the 4868151937Sjkimsource operand (to match the ACPI specification.) 4869151937Sjkim 4870193267SjkimReduced excessive stack use within the AcpiGetObjectInfo procedure. 4871151937Sjkim 4872193267SjkimAdded a fix to aclinux.h to allow generation of AcpiExec on Linux. 4873151937Sjkim 4874193267SjkimUpdated the AcpiSrc utility to add the FADT_DESCRIPTOR_REV2_MINUS struct. 4875151937Sjkim 4876193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4877193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4878193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4879193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4880193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4881193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4882193267Sjkimthe compiler options used during generation. 4883151937Sjkim 4884151937Sjkim Previous Release: 4885151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4886151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4887151937Sjkim Current Release: 4888151937Sjkim Non-Debug Version: 78.2K Code, 11.5K Data, 89.7K Total 4889151937Sjkim Debug Version: 164.9K Code, 69.2K Data, 234.1K Total 4890151937Sjkim 4891151937Sjkim 4892151937Sjkim2) iASL Compiler/Disassembler: 4893151937Sjkim 4894193267SjkimFixed a code generation problem in the constant folding optimization code 4895193267Sjkimwhere incorrect code was generated if a constant was reduced to a buffer 4896193267Sjkimobject (i.e., a reduced type 5 opcode.) 4897151937Sjkim 4898193267SjkimFixed a typechecking problem for the ToBuffer operator. Caused by an 4899193267Sjkimincorrect return type in the internal opcode information table. 4900151937Sjkim 4901151937Sjkim---------------------------------------- 4902151937Sjkim25 January 2005. Summary of changes for version 20050125: 4903151937Sjkim 4904151937Sjkim1) ACPI CA Core Subsystem: 4905151937Sjkim 4906193267SjkimFixed a recently introduced problem with the Global Lock where the 4907193267Sjkimunderlying semaphore was not created. This problem was introduced in 4908193267Sjkimversion 20050114, and caused an AE_AML_NO_OPERAND exception during an 4909193267SjkimAcquire() operation on _GL. 4910151937Sjkim 4911193267SjkimThe local object cache is now optional, and is disabled by default. Both 4912193267SjkimAcpiExec and the iASL compiler enable the cache because they run in user 4913193267Sjkimmode and this enhances their performance. #define ACPI_ENABLE_OBJECT_CACHE 4914193267Sjkimto enable the local cache. 4915151937Sjkim 4916193267SjkimFixed an issue in the internal function AcpiUtEvaluateObject concerning the 4917193267Sjkimoptional "implicit return" support where an error was returned if no return 4918193267Sjkimobject was expected, but one was implicitly returned. AE_OK is now returned 4919193267Sjkimin this case and the implicitly returned object is deleted. 4920193267SjkimAcpiUtEvaluateObject is only occasionally used, and only to execute reserved 4921193267Sjkimmethods such as _STA and _INI where the return type is known up front. 4922151937Sjkim 4923193267SjkimFixed a few issues with the internal convert-to-integer code. It now returns 4924193267Sjkiman error if an attempt is made to convert a null string, a string of only 4925193267Sjkimblanks/tabs, or a zero-length buffer. This affects both implicit conversion 4926193267Sjkimand explicit conversion via the ToInteger() operator. 4927151937Sjkim 4928193267SjkimThe internal debug code in AcpiUtAcquireMutex has been commented out. It is 4929193267Sjkimnot needed for normal operation and should increase the performance of the 4930193267Sjkimentire subsystem. The code remains in case it is needed for debug purposes 4931193267Sjkimagain. 4932151937Sjkim 4933193267SjkimThe AcpiExec source and makefile are included in the Unix/Linux package for 4934193267Sjkimthe first time. 4935151937Sjkim 4936193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 4937193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 4938193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 4939193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 4940193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 4941193267Sjkimthat these values will vary depending on the efficiency of the compiler and 4942193267Sjkimthe compiler options used during generation. 4943151937Sjkim 4944151937Sjkim Previous Release: 4945151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 4946151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 4947151937Sjkim Current Release: 4948151937Sjkim Non-Debug Version: 78.1K Code, 11.5K Data, 89.6K Total 4949151937Sjkim Debug Version: 164.8K Code, 69.2K Data, 234.0K Total 4950151937Sjkim 4951151937Sjkim2) iASL Compiler/Disassembler: 4952151937Sjkim 4953193267SjkimSwitch/Case support: A warning is now issued if the type of the Switch value 4954193267Sjkimcannot be determined at compile time. For example, Switch(Arg0) will 4955193267Sjkimgenerate the warning, and the type is assumed to be an integer. As per the 4956193267SjkimACPI spec, use a construct such as Switch(ToInteger(Arg0)) to eliminate the 4957193267Sjkimwarning. 4958151937Sjkim 4959193267SjkimSwitch/Case support: Implemented support for buffer and string objects as 4960193267Sjkimthe switch value. This is an ACPI 3.0 feature, now that LEqual supports 4961193267Sjkimbuffers and strings. 4962151937Sjkim 4963193267SjkimSwitch/Case support: The emitted code for the LEqual() comparisons now uses 4964193267Sjkimthe switch value as the first operand, not the second. The case value is now 4965193267Sjkimthe second operand, and this allows the case value to be implicitly 4966193267Sjkimconverted to the type of the switch value, not the other way around. 4967151937Sjkim 4968193267SjkimSwitch/Case support: Temporary variables are now emitted immediately within 4969193267Sjkimthe control method, not at the global level. This means that there are now 4970193267Sjkim36 temps available per-method, not 36 temps per-module as was the case with 4971193267Sjkimthe earlier implementation (_T_0 through _T_9 and _T_A through _T_Z.) 4972151937Sjkim 4973151937Sjkim---------------------------------------- 4974151937Sjkim14 January 2005. Summary of changes for version 20050114: 4975151937Sjkim 4976193267SjkimAdded 2005 copyright to all module headers. This affects every module in 4977193267Sjkimthe core subsystem, iASL compiler, and the utilities. 4978151937Sjkim 4979151937Sjkim1) ACPI CA Core Subsystem: 4980151937Sjkim 4981193267SjkimFixed an issue with the String-to-Buffer conversion code where the string 4982193267Sjkimnull terminator was not included in the buffer after conversion, but there 4983193267Sjkimis existing ASL that assumes the string null terminator is included. This is 4984193267Sjkimthe root of the ACPI_AML_BUFFER_LIMIT regression. This problem was 4985193267Sjkimintroduced in the previous version when the code was updated to correctly 4986193267Sjkimset the converted buffer size as per the ACPI specification. The ACPI spec 4987193267Sjkimis ambiguous and will be updated to specify that the null terminator must be 4988193267Sjkimincluded in the converted buffer. This also affects the ToBuffer() ASL 4989193267Sjkimoperator. 4990151937Sjkim 4991193267SjkimFixed a problem with the Mid() ASL/AML operator where it did not work 4992193267Sjkimcorrectly on Buffer objects. Newly created sub-buffers were not being marked 4993193267Sjkimas initialized. 4994151937Sjkim 4995167802Sjkim 4996193267SjkimFixed a problem in AcpiTbFindTable where incorrect string compares were 4997193267Sjkimperformed on the OemId and OemTableId table header fields. These fields are 4998193267Sjkimnot null terminated, so strncmp is now used instead of strcmp. 4999151937Sjkim 5000193267SjkimImplemented a restriction on the Store() ASL/AML operator to align the 5001193267Sjkimbehavior with the ACPI specification. Previously, any object could be used 5002193267Sjkimas the source operand. Now, the only objects that may be used are Integers, 5003193267SjkimBuffers, Strings, Packages, Object References, and DDB Handles. If 5004193267Sjkimnecessary, the original behavior can be restored by enabling the 5005151937SjkimEnableInterpreterSlack flag. 5006151937Sjkim 5007193267SjkimEnhanced the optional "implicit return" support to allow an implicit return 5008193267Sjkimvalue from methods that are invoked externally via the AcpiEvaluateObject 5009193267Sjkiminterface. This enables implicit returns from the _STA and _INI methods, 5010193267Sjkimfor example. 5011151937Sjkim 5012193267SjkimChanged the Revision() ASL/AML operator to return the current version of the 5013193267SjkimAML interpreter, in the YYYYMMDD format. Previously, it incorrectly returned 5014193267Sjkimthe supported ACPI version (This is the function of the _REV method). 5015151937Sjkim 5016193267SjkimUpdated the _REV predefined method to return the currently supported version 5017193267Sjkimof ACPI, now 3. 5018151937Sjkim 5019151937SjkimImplemented batch mode option for the AcpiExec utility (-b). 5020151937Sjkim 5021193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5022193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5023193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5024193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5025193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5026193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5027193267Sjkimthe compiler options used during generation. 5028151937Sjkim 5029151937Sjkim Previous Release: 5030151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5031151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5032151937Sjkim Current Release: 5033151937Sjkim Non-Debug Version: 78.4K Code, 11.5K Data, 89.9K Total 5034151937Sjkim Debug Version: 165.4K Code, 69.4K Data, 234.8K Total 5035151937Sjkim 5036151937Sjkim---------------------------------------- 5037151937Sjkim10 December 2004. Summary of changes for version 20041210: 5038151937Sjkim 5039193267SjkimACPI 3.0 support is nearing completion in both the iASL compiler and the 5040193267SjkimACPI CA core subsystem. 5041151937Sjkim 5042151937Sjkim1) ACPI CA Core Subsystem: 5043151937Sjkim 5044193267SjkimFixed a problem in the ToDecimalString operator where the resulting string 5045193267Sjkimlength was incorrectly calculated. The length is now calculated exactly, 5046193267Sjkimeliminating incorrect AE_STRING_LIMIT exceptions. 5047151937Sjkim 5048193267SjkimFixed a problem in the ToHexString operator to allow a maximum 200 character 5049193267Sjkimstring to be produced. 5050151937Sjkim 5051193267SjkimFixed a problem in the internal string-to-buffer and buffer-to-buffer copy 5052193267Sjkimroutine where the length of the resulting buffer was not truncated to the 5053193267Sjkimnew size (if the target buffer already existed). 5054151937Sjkim 5055193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5056193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5057193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5058193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5059193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5060193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5061193267Sjkimthe compiler options used during generation. 5062151937Sjkim 5063151937Sjkim Previous Release: 5064151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5065151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5066151937Sjkim Current Release: 5067151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5068151937Sjkim Debug Version: 165.3K Code, 69.4K Data, 234.7K Total 5069151937Sjkim 5070151937Sjkim 5071151937Sjkim2) iASL Compiler/Disassembler: 5072151937Sjkim 5073193267SjkimImplemented the new ACPI 3.0 resource template macros - DWordSpace, 5074193267SjkimExtendedIO, ExtendedMemory, ExtendedSpace, QWordSpace, and WordSpace. 5075193267SjkimIncludes support in the disassembler. 5076151937Sjkim 5077193267SjkimImplemented support for the new (ACPI 3.0) parameter to the Register macro, 5078193267SjkimAccessSize. 5079151937Sjkim 5080193267SjkimFixed a problem where the _HE resource name for the Interrupt macro was 5081193267Sjkimreferencing bit 0 instead of bit 1. 5082151937Sjkim 5083193267SjkimImplemented check for maximum 255 interrupts in the Interrupt macro. 5084151937Sjkim 5085193267SjkimFixed a problem with the predefined resource descriptor names where 5086193267Sjkimincorrect AML code was generated if the offset within the resource buffer 5087193267Sjkimwas 0 or 1. The optimizer shortened the AML code to a single byte opcode 5088193267Sjkimbut did not update the surrounding package lengths. 5089151937Sjkim 5090193267SjkimChanges to the Dma macro: All channels within the channel list must be in 5091193267Sjkimthe range 0-7. Maximum 8 channels can be specified. BusMaster operand is 5092193267Sjkimoptional (default is BusMaster). 5093151937Sjkim 5094193267SjkimImplemented check for maximum 7 data bytes for the VendorShort macro. 5095151937Sjkim 5096193267SjkimThe ReadWrite parameter is now optional for the Memory32 and similar macros. 5097151937Sjkim 5098151937Sjkim---------------------------------------- 5099151937Sjkim03 December 2004. Summary of changes for version 20041203: 5100151937Sjkim 5101151937Sjkim1) ACPI CA Core Subsystem: 5102151937Sjkim 5103193267SjkimThe low-level field insertion/extraction code (exfldio) has been completely 5104193267Sjkimrewritten to eliminate unnecessary complexity, bugs, and boundary 5105193267Sjkimconditions. 5106151937Sjkim 5107193267SjkimFixed a problem in the ToInteger, ToBuffer, ToHexString, and ToDecimalString 5108193267Sjkimoperators where the input operand could be inadvertently deleted if no 5109193267Sjkimconversion was necessary (e.g., if the input to ToInteger was an Integer 5110193267Sjkimobject.) 5111151937Sjkim 5112193267SjkimFixed a problem with the ToDecimalString and ToHexString where an incorrect 5113193267Sjkimexception code was returned if the resulting string would be > 200 chars. 5114193267SjkimAE_STRING_LIMIT is now returned. 5115151937Sjkim 5116193267SjkimFixed a problem with the Concatenate operator where AE_OK was always 5117193267Sjkimreturned, even if the operation failed. 5118151937Sjkim 5119193267SjkimFixed a problem in oswinxf (used by AcpiExec and iASL) to allow > 128 5120193267Sjkimsemaphores to be allocated. 5121151937Sjkim 5122193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5123193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5124193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5125193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5126193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5127193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5128193267Sjkimthe compiler options used during generation. 5129151937Sjkim 5130151937Sjkim Previous Release: 5131151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5132151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5133151937Sjkim Current Release: 5134151937Sjkim Non-Debug Version: 78.3K Code, 11.5K Data, 89.8K Total 5135151937Sjkim Debug Version: 164.7K Code, 68.5K Data, 233.2K Total 5136151937Sjkim 5137151937Sjkim 5138151937Sjkim2) iASL Compiler/Disassembler: 5139151937Sjkim 5140193267SjkimFixed typechecking for the ObjectType and SizeOf operators. Problem was 5141193267Sjkimrecently introduced in 20041119. 5142151937Sjkim 5143193267SjkimFixed a problem with the ToUUID macro where the upper nybble of each buffer 5144193267Sjkimbyte was inadvertently set to zero. 5145151937Sjkim 5146151937Sjkim---------------------------------------- 5147138287Smarks19 November 2004. Summary of changes for version 20041119: 5148138287Smarks 5149138287Smarks1) ACPI CA Core Subsystem: 5150138287Smarks 5151193267SjkimFixed a problem in the internal ConvertToInteger routine where new integers 5152193267Sjkimwere not truncated to 32 bits for 32-bit ACPI tables. This routine converts 5153193267Sjkimbuffers and strings to integers. 5154138287Smarks 5155193267SjkimImplemented support to store a value to an Index() on a String object. This 5156193267Sjkimis an ACPI 2.0 feature that had not yet been implemented. 5157138287Smarks 5158193267SjkimImplemented new behavior for storing objects to individual package elements 5159193267Sjkim(via the Index() operator). The previous behavior was to invoke the implicit 5160193267Sjkimconversion rules if an object was already present at the index. The new 5161193267Sjkimbehavior is to simply delete any existing object and directly store the new 5162193267Sjkimobject. Although the ACPI specification seems unclear on this subject, other 5163193267SjkimACPI implementations behave in this manner. (This is the root of the 5164193267SjkimAE_BAD_HEX_CONSTANT issue.) 5165138287Smarks 5166193267SjkimModified the RSDP memory scan mechanism to support the extended checksum for 5167193267SjkimACPI 2.0 (and above) RSDPs. Note that the search continues until a valid 5168193267SjkimRSDP signature is found with a valid checksum. 5169138287Smarks 5170193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5171193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5172193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5173193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5174193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5175193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5176193267Sjkimthe compiler options used during generation. 5177138287Smarks 5178151937Sjkim Previous Release: 5179151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5180151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5181151937Sjkim Current Release: 5182151937Sjkim Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5183151937Sjkim Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5184138287Smarks 5185138287Smarks 5186138287Smarks2) iASL Compiler/Disassembler: 5187138287Smarks 5188138287SmarksFixed a missing semicolon in the aslcompiler.y file. 5189138287Smarks 5190138287Smarks---------------------------------------- 5191138287Smarks05 November 2004. Summary of changes for version 20041105: 5192138287Smarks 5193138287Smarks1) ACPI CA Core Subsystem: 5194138287Smarks 5195193267SjkimImplemented support for FADT revision 2. This was an interim table (between 5196193267SjkimACPI 1.0 and ACPI 2.0) that adds support for the FADT reset register. 5197138287Smarks 5198193267SjkimImplemented optional support to allow uninitialized LocalX and ArgX 5199193267Sjkimvariables in a control method. The variables are initialized to an Integer 5200193267Sjkimobject with a value of zero. This support is enabled by setting the 5201193267SjkimAcpiGbl_EnableInterpreterSlack flag to TRUE. 5202138287Smarks 5203193267SjkimImplemented support for Integer objects for the SizeOf operator. Either 4 5204193267Sjkimor 8 is returned, depending on the current integer size (32-bit or 64-bit, 5205193267Sjkimdepending on the parent table revision). 5206138287Smarks 5207193267SjkimFixed a problem in the implementation of the SizeOf and ObjectType operators 5208193267Sjkimwhere the operand was resolved to a value too early, causing incorrect 5209193267Sjkimreturn values for some objects. 5210138287Smarks 5211138287SmarksFixed some possible memory leaks during exceptional conditions. 5212138287Smarks 5213193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5214193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5215193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5216193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5217193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5218193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5219193267Sjkimthe compiler options used during generation. 5220138287Smarks 5221138287Smarks Previous Release: 5222138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5223138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5224138287Smarks Current Release: 5225138287Smarks Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total 5226138287Smarks Debug Version: 165.2K Code, 68.6K Data, 233.8K Total 5227138287Smarks 5228138287Smarks 5229138287Smarks2) iASL Compiler/Disassembler: 5230138287Smarks 5231138287SmarksImplemented support for all ACPI 3.0 reserved names and methods. 5232138287Smarks 5233193267SjkimImplemented all ACPI 3.0 grammar elements in the front-end, including 5234193267Sjkimsupport for semicolons. 5235138287Smarks 5236138287SmarksImplemented the ACPI 3.0 Function() and ToUUID() macros 5237138287Smarks 5238193267SjkimFixed a problem in the disassembler where a Scope() operator would not be 5239193267Sjkimemitted properly if the target of the scope was in another table. 5240138287Smarks 5241138287Smarks---------------------------------------- 5242138287Smarks15 October 2004. Summary of changes for version 20041015: 5243138287Smarks 5244193267SjkimNote: ACPI CA is currently undergoing an in-depth and complete formal 5245193267Sjkimevaluation to test/verify the following areas. Other suggestions are 5246193267Sjkimwelcome. This will result in an increase in the frequency of releases and 5247193267Sjkimthe number of bug fixes in the next few months. 5248138287Smarks - Functional tests for all ASL/AML operators 5249138287Smarks - All implicit/explicit type conversions 5250138287Smarks - Bit fields and operation regions 5251138287Smarks - 64-bit math support and 32-bit-only "truncated" math support 5252138287Smarks - Exceptional conditions, both compiler and interpreter 5253138287Smarks - Dynamic object deletion and memory leaks 5254138287Smarks - ACPI 3.0 support when implemented 5255138287Smarks - External interfaces to the ACPI subsystem 5256138287Smarks 5257138287Smarks 5258138287Smarks1) ACPI CA Core Subsystem: 5259138287Smarks 5260193267SjkimFixed two alignment issues on 64-bit platforms - within debug statements in 5261193267SjkimAcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed references to the Address 5262193267Sjkimfield within the non-aligned ACPI generic address structure. 5263138287Smarks 5264193267SjkimFixed a problem in the Increment and Decrement operators where incorrect 5265193267Sjkimoperand resolution could result in the inadvertent modification of the 5266193267Sjkimoriginal integer when the integer is passed into another method as an 5267193267Sjkimargument and the arg is then incremented/decremented. 5268138287Smarks 5269193267SjkimFixed a problem in the FromBCD operator where the upper 32-bits of a 64-bit 5270193267SjkimBCD number were truncated during conversion. 5271138287Smarks 5272193267SjkimFixed a problem in the ToDecimal operator where the length of the resulting 5273193267Sjkimstring could be set incorrectly too long if the input operand was a Buffer 5274193267Sjkimobject. 5275138287Smarks 5276193267SjkimFixed a problem in the Logical operators (LLess, etc.) where a NULL byte (0) 5277193267Sjkimwithin a buffer would prematurely terminate a compare between buffer 5278193267Sjkimobjects. 5279138287Smarks 5280193267SjkimAdded a check for string overflow (>200 characters as per the ACPI 5281193267Sjkimspecification) during the Concatenate operator with two string operands. 5282138287Smarks 5283193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5284193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5285193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5286193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5287193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5288193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5289193267Sjkimthe compiler options used during generation. 5290138287Smarks 5291138287Smarks Previous Release: 5292138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5293138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5294138287Smarks Current Release: 5295138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5296138287Smarks Debug Version: 164.8K Code, 68.6K Data, 233.4K Total 5297138287Smarks 5298138287Smarks 5299167802Sjkim 5300138287Smarks2) iASL Compiler/Disassembler: 5301138287Smarks 5302193267SjkimAllow the use of the ObjectType operator on uninitialized Locals and Args 5303193267Sjkim(returns 0 as per the ACPI specification). 5304138287Smarks 5305193267SjkimFixed a problem where the compiler would fault if there was a syntax error 5306193267Sjkimin the FieldName of all of the various CreateXXXField operators. 5307138287Smarks 5308193267SjkimDisallow the use of lower case letters within the EISAID macro, as per the 5309193267SjkimACPI specification. All EISAID strings must be of the form "UUUNNNN" Where 5310193267SjkimU is an uppercase letter and N is a hex digit. 5311138287Smarks 5312138287Smarks 5313138287Smarks---------------------------------------- 5314138287Smarks06 October 2004. Summary of changes for version 20041006: 5315138287Smarks 5316138287Smarks1) ACPI CA Core Subsystem: 5317138287Smarks 5318193267SjkimImplemented support for the ACPI 3.0 Timer operator. This ASL function 5319193267Sjkimimplements a 64-bit timer with 100 nanosecond granularity. 5320138287Smarks 5321193267SjkimDefined a new OSL interface, AcpiOsGetTimer. This interface is used to 5322193267Sjkimimplement the ACPI 3.0 Timer operator. This allows the host OS to implement 5323193267Sjkimthe timer with the best clock available. Also, it keeps the core subsystem 5324193267Sjkimout of the clock handling business, since the host OS (usually) performs 5325193267Sjkimthis function. 5326138287Smarks 5327193267SjkimFixed an alignment issue on 64-bit platforms. The HwLowLevelRead(Write) 5328193267Sjkimfunctions use a 64-bit address which is part of the packed ACPI Generic 5329193267SjkimAddress Structure. Since the structure is non-aligned, the alignment macros 5330193267Sjkimare now used to extract the address to a local variable before use. 5331138287Smarks 5332193267SjkimFixed a problem where the ToInteger operator assumed all input strings were 5333193267Sjkimhexadecimal. The operator now handles both decimal strings and hex strings 5334193267Sjkim(prefixed with "0x"). 5335138287Smarks 5336193267SjkimFixed a problem where the string length in the string object created as a 5337193267Sjkimresult of the internal ConvertToString procedure could be incorrect. This 5338193267Sjkimpotentially affected all implicit conversions and also the ToDecimalString 5339193267Sjkimand ToHexString operators. 5340138287Smarks 5341193267SjkimFixed two problems in the ToString operator. If the length parameter was 5342193267Sjkimzero, an incorrect string object was created and the value of the input 5343193267Sjkimlength parameter was inadvertently changed from zero to Ones. 5344138287Smarks 5345193267SjkimFixed a problem where the optional ResourceSource string in the ExtendedIRQ 5346193267Sjkimresource macro was ignored. 5347138287Smarks 5348193267SjkimSimplified the interfaces to the internal division functions, reducing code 5349193267Sjkimsize and complexity. 5350138287Smarks 5351193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5352193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5353193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5354193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5355193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5356193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5357193267Sjkimthe compiler options used during generation. 5358138287Smarks 5359138287Smarks Previous Release: 5360138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5361138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5362138287Smarks Current Release: 5363138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5364138287Smarks Debug Version: 164.6K Code, 68.5K Data, 233.1K Total 5365138287Smarks 5366138287Smarks 5367138287Smarks2) iASL Compiler/Disassembler: 5368138287Smarks 5369138287SmarksImplemented support for the ACPI 3.0 Timer operator. 5370138287Smarks 5371193267SjkimFixed a problem where the Default() operator was inadvertently ignored in a 5372193267SjkimSwitch/Case block. This was a problem in the translation of the Switch 5373193267Sjkimstatement to If...Else pairs. 5374138287Smarks 5375193267SjkimAdded support to allow a standalone Return operator, with no parentheses (or 5376193267Sjkimoperands). 5377138287Smarks 5378193267SjkimFixed a problem with code generation for the ElseIf operator where the 5379193267Sjkimtranslated Else...If parse tree was improperly constructed leading to the 5380193267Sjkimloss of some code. 5381138287Smarks 5382138287Smarks---------------------------------------- 5383138287Smarks22 September 2004. Summary of changes for version 20040922: 5384138287Smarks 5385138287Smarks1) ACPI CA Core Subsystem: 5386138287Smarks 5387193267SjkimFixed a problem with the implementation of the LNot() operator where "Ones" 5388193267Sjkimwas not returned for the TRUE case. Changed the code to return Ones instead 5389193267Sjkimof (!Arg) which was usually 1. This change affects iASL constant folding for 5390193267Sjkimthis operator also. 5391138287Smarks 5392193267SjkimFixed a problem in AcpiUtInitializeBuffer where an existing buffer was not 5393193267Sjkiminitialized properly -- Now zero the entire buffer in this case where the 5394193267Sjkimbuffer already exists. 5395138287Smarks 5396193267SjkimChanged the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 5397193267SjkimMilliseconds) to simply (ACPI_INTEGER Milliseconds). This simplifies all 5398193267Sjkimrelated code considerably. This will require changes/updates to all OS 5399193267Sjkiminterface layers (OSLs.) 5400138287Smarks 5401193267SjkimImplemented a new external interface, AcpiInstallExceptionHandler, to allow 5402193267Sjkima system exception handler to be installed. This handler is invoked upon any 5403193267Sjkimrun-time exception that occurs during control method execution. 5404138287Smarks 5405193267SjkimAdded support for the DSDT in AcpiTbFindTable. This allows the 5406138287SmarksDataTableRegion() operator to access the local copy of the DSDT. 5407138287Smarks 5408193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5409193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5410193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5411193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5412193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5413193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5414193267Sjkimthe compiler options used during generation. 5415138287Smarks 5416138287Smarks Previous Release: 5417138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5418138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5419138287Smarks Current Release: 5420138287Smarks Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total 5421138287Smarks Debug Version: 164.5K Code, 68.3K Data, 232.8K Total 5422138287Smarks 5423138287Smarks 5424138287Smarks2) iASL Compiler/Disassembler: 5425138287Smarks 5426193267SjkimFixed a problem with constant folding and the LNot operator. LNot was 5427193267Sjkimreturning 1 in the TRUE case, not Ones as per the ACPI specification. This 5428193267Sjkimcould result in the generation of an incorrect folded/reduced constant. 5429138287Smarks 5430193267SjkimEnd-Of-File is now allowed within a "//"-style comment. A parse error no 5431193267Sjkimlonger occurs if such a comment is at the very end of the input ASL source 5432193267Sjkimfile. 5433138287Smarks 5434193267SjkimImplemented the "-r" option to override the Revision in the table header. 5435193267SjkimThe initial use of this option will be to simplify the evaluation of the AML 5436193267Sjkiminterpreter by allowing a single ASL source module to be compiled for either 5437193267Sjkim32-bit or 64-bit integers. 5438138287Smarks 5439138287Smarks 5440138287Smarks---------------------------------------- 5441138287Smarks27 August 2004. Summary of changes for version 20040827: 5442138287Smarks 5443138287Smarks1) ACPI CA Core Subsystem: 5444138287Smarks 5445193267Sjkim- Implemented support for implicit object conversion in the non-numeric 5446193267Sjkimlogical operators (LEqual, LGreater, LGreaterEqual, LLess, LLessEqual, and 5447193267SjkimLNotEqual.) Any combination of Integers/Strings/Buffers may now be used; 5448193267Sjkimthe second operand is implicitly converted on the fly to match the type of 5449193267Sjkimthe first operand. For example: 5450138287Smarks 5451138287Smarks LEqual (Source1, Source2) 5452138287Smarks 5453193267SjkimSource1 and Source2 must each evaluate to an integer, a string, or a buffer. 5454193267SjkimThe data type of Source1 dictates the required type of Source2. Source2 is 5455193267Sjkimimplicitly converted if necessary to match the type of Source1. 5456138287Smarks 5457193267Sjkim- Updated and corrected the behavior of the string conversion support. The 5458193267Sjkimrules concerning conversion of buffers to strings (according to the ACPI 5459193267Sjkimspecification) are as follows: 5460138287Smarks 5461193267SjkimToDecimalString - explicit byte-wise conversion of buffer to string of 5462193267Sjkimdecimal values (0-255) separated by commas. ToHexString - explicit byte-wise 5463193267Sjkimconversion of buffer to string of hex values (0-FF) separated by commas. 5464193267SjkimToString - explicit byte-wise conversion of buffer to string. Byte-by-byte 5465193267Sjkimcopy with no transform except NULL terminated. Any other implicit buffer-to- 5466193267Sjkimstring conversion - byte-wise conversion of buffer to string of hex values 5467193267Sjkim(0-FF) separated by spaces. 5468138287Smarks 5469138287Smarks- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. 5470138287Smarks 5471193267Sjkim- Fixed a problem in AcpiNsGetPathnameLength where the returned length was 5472193267Sjkimone byte too short in the case of a node in the root scope. This could 5473193267Sjkimcause a fault during debug output. 5474138287Smarks 5475193267Sjkim- Code and Data Size: Current and previous core subsystem library sizes are 5476193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5477193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5478193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5479193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5480193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5481193267Sjkimthe compiler options used during generation. 5482138287Smarks 5483138287Smarks Previous Release: 5484138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5485138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5486138287Smarks Current Release: 5487138287Smarks Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total 5488138287Smarks Debug Version: 164.2K Code, 68.2K Data, 232.4K Total 5489138287Smarks 5490138287Smarks 5491138287Smarks2) iASL Compiler/Disassembler: 5492138287Smarks 5493138287Smarks- Fixed a Linux generation error. 5494138287Smarks 5495138287Smarks 5496138287Smarks---------------------------------------- 5497138287Smarks16 August 2004. Summary of changes for version 20040816: 5498138287Smarks 5499138287Smarks1) ACPI CA Core Subsystem: 5500138287Smarks 5501193267SjkimDesigned and implemented support within the AML interpreter for the so- 5502193267Sjkimcalled "implicit return". This support returns the result of the last ASL 5503193267Sjkimoperation within a control method, in the absence of an explicit Return() 5504193267Sjkimoperator. A few machines depend on this behavior, even though it is not 5505193267Sjkimexplicitly supported by the ASL language. It is optional support that can 5506193267Sjkimbe enabled at runtime via the AcpiGbl_EnableInterpreterSlack flag. 5507138287Smarks 5508193267SjkimRemoved support for the PCI_Config address space from the internal low level 5509193267Sjkimhardware interfaces (AcpiHwLowLevelRead and AcpiHwLowLevelWrite). This 5510193267Sjkimsupport was not used internally, and would not work correctly anyway because 5511193267Sjkimthe PCI bus number and segment number were not supported. There are 5512193267Sjkimseparate interfaces for PCI configuration space access because of the unique 5513138287Smarksinterface. 5514138287Smarks 5515193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5516193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5517193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5518193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5519193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5520193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5521193267Sjkimthe compiler options used during generation. 5522138287Smarks 5523138287Smarks Previous Release: 5524138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5525138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5526138287Smarks Current Release: 5527138287Smarks Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total 5528138287Smarks Debug Version: 164.1K Code, 68.3K Data, 232.4K Total 5529138287Smarks 5530138287Smarks 5531138287Smarks2) iASL Compiler/Disassembler: 5532138287Smarks 5533193267SjkimFixed a problem where constants in ASL expressions at the root level (not 5534193267Sjkimwithin a control method) could be inadvertently truncated during code 5535193267Sjkimgeneration. This problem was introduced in the 20040715 release. 5536138287Smarks 5537138287Smarks 5538138287Smarks---------------------------------------- 5539138287Smarks15 July 2004. Summary of changes for version 20040715: 5540138287Smarks 5541138287Smarks1) ACPI CA Core Subsystem: 5542138287Smarks 5543193267SjkimRestructured the internal HW GPE interfaces to pass/track the current state 5544193267Sjkimof interrupts (enabled/disabled) in order to avoid possible deadlock and 5545193267Sjkimincrease flexibility of the interfaces. 5546138287Smarks 5547193267SjkimImplemented a "lexicographical compare" for String and Buffer objects within 5548193267Sjkimthe logical operators -- LGreater, LLess, LGreaterEqual, and LLessEqual -- 5549193267Sjkimas per further clarification to the ACPI specification. Behavior is similar 5550193267Sjkimto C library "strcmp". 5551138287Smarks 5552193267SjkimCompleted a major reduction in CPU stack use for the AcpiGetFirmwareTable 5553193267Sjkimexternal function. In the 32-bit non-debug case, the stack use has been 5554193267Sjkimreduced from 168 bytes to 32 bytes. 5555138287Smarks 5556193267SjkimDeployed a new run-time configuration flag, AcpiGbl_EnableInterpreterSlack, 5557193267Sjkimwhose purpose is to allow the AML interpreter to forgive certain bad AML 5558193267Sjkimconstructs. Default setting is FALSE. 5559138287Smarks 5560193267SjkimImplemented the first use of AcpiGbl_EnableInterpreterSlack in the Field IO 5561193267Sjkimsupport code. If enabled, it allows field access to go beyond the end of a 5562193267Sjkimregion definition if the field is within the region length rounded up to the 5563193267Sjkimnext access width boundary (a common coding error.) 5564138287Smarks 5565193267SjkimRenamed OSD_HANDLER to ACPI_OSD_HANDLER, and OSD_EXECUTION_CALLBACK to 5566193267SjkimACPI_OSD_EXEC_CALLBACK for consistency with other ACPI symbols. Also, these 5567193267Sjkimsymbols are lowercased by the latest version of the AcpiSrc tool. 5568138287Smarks 5569193267SjkimThe prototypes for the PCI interfaces in acpiosxf.h have been updated to 5570193267Sjkimrename "Register" to simply "Reg" to prevent certain compilers from 5571193267Sjkimcomplaining. 5572138287Smarks 5573193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5574193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5575193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5576193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5577193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5578193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5579193267Sjkimthe compiler options used during generation. 5580138287Smarks 5581138287Smarks Previous Release: 5582138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5583138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5584138287Smarks Current Release: 5585138287Smarks Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total 5586138287Smarks Debug Version: 164.1K Code, 68.2K Data, 232.3K Total 5587138287Smarks 5588138287Smarks 5589138287Smarks2) iASL Compiler/Disassembler: 5590138287Smarks 5591193267SjkimImplemented full support for Package objects within the Case() operator. 5592193267SjkimNote: The Break() operator is currently not supported within Case blocks 5593193267Sjkim(TermLists) as there is some question about backward compatibility with ACPI 5594193267Sjkim1.0 interpreters. 5595138287Smarks 5596167802Sjkim 5597193267SjkimFixed a problem where complex terms were not supported properly within the 5598193267SjkimSwitch() operator. 5599138287Smarks 5600193267SjkimEliminated extraneous warning for compiler-emitted reserved names of the 5601193267Sjkimform "_T_x". (Used in Switch/Case operators.) 5602138287Smarks 5603193267SjkimEliminated optimization messages for "_T_x" objects and small constants 5604193267Sjkimwithin the DefinitionBlock operator. 5605138287Smarks 5606138287Smarks 5607138287Smarks---------------------------------------- 5608138287Smarks15 June 2004. Summary of changes for version 20040615: 5609138287Smarks 5610138287Smarks1) ACPI CA Core Subsystem: 5611138287Smarks 5612193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5613193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5614193267SjkimLLessEqual. 5615138287Smarks 5616193267SjkimAll directory names in the entire source package are lower case, as they 5617193267Sjkimwere in earlier releases. 5618138287Smarks 5619193267SjkimImplemented "Disassemble" command in the AML debugger that will disassemble 5620193267Sjkima single control method. 5621138287Smarks 5622193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5623193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5624193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5625193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5626193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5627193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5628193267Sjkimthe compiler options used during generation. 5629138287Smarks 5630138287Smarks Previous Release: 5631138287Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5632138287Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5633167802Sjkim 5634138287Smarks Current Release: 5635138287Smarks Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total 5636138287Smarks Debug Version: 163.8K Code, 68.2K Data, 232.0K Total 5637138287Smarks 5638138287Smarks 5639138287Smarks2) iASL Compiler/Disassembler: 5640138287Smarks 5641193267SjkimImplemented support for Buffer and String objects (as per ACPI 2.0) for the 5642193267Sjkimfollowing ASL operators: LEqual, LGreater, LLess, LGreaterEqual, and 5643193267SjkimLLessEqual. 5644138287Smarks 5645193267SjkimAll directory names in the entire source package are lower case, as they 5646193267Sjkimwere in earlier releases. 5647138287Smarks 5648193267SjkimFixed a fault when using the -g or -d<nofilename> options if the FADT was 5649193267Sjkimnot found. 5650138287Smarks 5651193267SjkimFixed an issue with the Windows version of the compiler where later versions 5652193267Sjkimof Windows place the FADT in the registry under the name "FADT" and not 5653193267Sjkim"FACP" as earlier versions did. This applies when using the -g or - 5654193267Sjkimd<nofilename> options. The compiler now looks for both strings as 5655193267Sjkimnecessary. 5656138287Smarks 5657193267SjkimFixed a problem with compiler namepath optimization where a namepath within 5658193267Sjkimthe Scope() operator could not be optimized if the namepath was a subpath of 5659193267Sjkimthe current scope path. 5660138287Smarks 5661138287Smarks---------------------------------------- 5662131440Smarks27 May 2004. Summary of changes for version 20040527: 5663131440Smarks 5664131440Smarks1) ACPI CA Core Subsystem: 5665131440Smarks 5666193267SjkimCompleted a new design and implementation for EBDA (Extended BIOS Data Area) 5667193267Sjkimsupport in the RSDP scan code. The original code improperly scanned for the 5668193267SjkimEBDA by simply scanning from memory location 0 to 0x400. The correct method 5669193267Sjkimis to first obtain the EBDA pointer from within the BIOS data area, then 5670193267Sjkimscan 1K of memory starting at the EBDA pointer. There appear to be few if 5671131440Smarksany machines that place the RSDP in the EBDA, however. 5672131440Smarks 5673193267SjkimIntegrated a fix for a possible fault during evaluation of BufferField 5674193267Sjkimarguments. Obsolete code that was causing the problem was removed. 5675131440Smarks 5676193267SjkimFound and fixed a problem in the Field Support Code where data could be 5677193267Sjkimcorrupted on a bit field read that starts on an aligned boundary but does 5678193267Sjkimnot end on an aligned boundary. Merged the read/write "datum length" 5679193267Sjkimcalculation code into a common procedure. 5680131440Smarks 5681131440SmarksRolled in a couple of changes to the FreeBSD-specific header. 5682131440Smarks 5683167802Sjkim 5684193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5685193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5686193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5687193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5688193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5689193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5690193267Sjkimthe compiler options used during generation. 5691131440Smarks 5692131440Smarks Previous Release: 5693131440Smarks Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5694131440Smarks Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5695131440Smarks Current Release: 5696131440Smarks Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total 5697131440Smarks Debug Version: 163.3K Code, 67.2K Data, 230.5K Total 5698131440Smarks 5699131440Smarks 5700131440Smarks2) iASL Compiler/Disassembler: 5701131440Smarks 5702193267SjkimFixed a generation warning produced by some overly-verbose compilers for a 5703193267Sjkim64-bit constant. 5704131440Smarks 5705131440Smarks---------------------------------------- 5706129684Snjl14 May 2004. Summary of changes for version 20040514: 5707129684Snjl 5708129684Snjl1) ACPI CA Core Subsystem: 5709129684Snjl 5710193267SjkimFixed a problem where hardware GPE enable bits sometimes not set properly 5711193267Sjkimduring and after GPE method execution. Result of 04/27 changes. 5712129684Snjl 5713129684SnjlRemoved extra "clear all GPEs" when sleeping/waking. 5714129684Snjl 5715193267SjkimRemoved AcpiHwEnableGpe and AcpiHwDisableGpe, replaced by the single 5716193267SjkimAcpiHwWriteGpeEnableReg. Changed a couple of calls to the functions above to 5717193267Sjkimthe new AcpiEv* calls as appropriate. 5718129684Snjl 5719193267SjkimACPI_OS_NAME was removed from the OS-specific headers. The default name is 5720193267Sjkimnow "Microsoft Windows NT" for maximum compatibility. However this can be 5721193267Sjkimchanged by modifying the acconfig.h file. 5722129684Snjl 5723193267SjkimAllow a single invocation of AcpiInstallNotifyHandler for a handler that 5724193267Sjkimtraps both types of notifies (System, Device). Use ACPI_ALL_NOTIFY flag. 5725129684Snjl 5726193267SjkimRun _INI methods on ThermalZone objects. This is against the ACPI 5727193267Sjkimspecification, but there is apparently ASL code in the field that has these 5728193267Sjkim_INI methods, and apparently "other" AML interpreters execute them. 5729129684Snjl 5730193267SjkimPerformed a full 16/32/64 bit lint that resulted in some small changes. 5731129684Snjl 5732193267SjkimAdded a sleep simulation command to the AML debugger to test sleep code. 5733129684Snjl 5734193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5735193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5736193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5737193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5738193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5739193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5740193267Sjkimthe compiler options used during generation. 5741129684Snjl 5742129684Snjl Previous Release: 5743129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5744129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5745129684Snjl Current Release: 5746129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5747129684Snjl Debug Version: 163.2K Code, 67.2K Data, 230.4K Total 5748129684Snjl 5749129684Snjl---------------------------------------- 5750129684Snjl27 April 2004. Summary of changes for version 20040427: 5751129684Snjl 5752129684Snjl1) ACPI CA Core Subsystem: 5753129684Snjl 5754193267SjkimCompleted a major overhaul of the GPE handling within ACPI CA. There are 5755193267Sjkimnow three types of GPEs: wake-only, runtime-only, and combination wake/run. 5756193267SjkimThe only GPEs allowed to be combination wake/run are for button-style 5757193267Sjkimdevices such as a control-method power button, control-method sleep button, 5758193267Sjkimor a notebook lid switch. GPEs that have an _Lxx or _Exx method and are not 5759193267Sjkimreferenced by any _PRW methods are marked for "runtime" and hardware 5760193267Sjkimenabled. Any GPE that is referenced by a _PRW method is marked for "wake" 5761193267Sjkim(and disabled at runtime). However, at sleep time, only those GPEs that 5762193267Sjkimhave been specifically enabled for wake via the AcpiEnableGpe interface will 5763193267Sjkimactually be hardware enabled. 5764129684Snjl 5765193267SjkimA new external interface has been added, AcpiSetGpeType(), that is meant to 5766193267Sjkimbe used by device drivers to force a GPE to a particular type. It will be 5767193267Sjkimespecially useful for the drivers for the button devices mentioned above. 5768129684Snjl 5769193267SjkimCompleted restructuring of the ACPI CA initialization sequence so that 5770193267Sjkimdefault operation region handlers are installed before GPEs are initialized 5771193267Sjkimand the _PRW methods are executed. This will prevent errors when the _PRW 5772193267Sjkimmethods attempt to access system memory or I/O space. 5773129684Snjl 5774193267SjkimGPE enable/disable no longer reads the GPE enable register. We now keep the 5775193267Sjkimenable info for runtime and wake separate and in the GPE_EVENT_INFO. We 5776193267Sjkimthus no longer depend on the hardware to maintain these bits. 5777129684Snjl 5778193267SjkimAlways clear the wake status and fixed/GPE status bits before sleep, even 5779193267Sjkimfor state S5. 5780129684Snjl 5781193267SjkimImproved the AML debugger output for displaying the GPE blocks and their 5782193267Sjkimcurrent status. 5783129684Snjl 5784193267SjkimAdded new strings for the _OSI method, of the form "Windows 2001 SPx" where 5785193267Sjkimx = 0,1,2,3,4. 5786129684Snjl 5787193267SjkimFixed a problem where the physical address was incorrectly calculated when 5788193267Sjkimthe Load() operator was used to directly load from an Operation Region (vs. 5789193267Sjkimloading from a Field object.) Also added check for minimum table length for 5790193267Sjkimthis case. 5791129684Snjl 5792193267SjkimFix for multiple mutex acquisition. Restore original thread SyncLevel on 5793193267Sjkimmutex release. 5794129684Snjl 5795193267SjkimAdded ACPI_VALID_SXDS flag to the AcpiGetObjectInfo interface for 5796129684Snjlconsistency with the other fields returned. 5797129684Snjl 5798193267SjkimShrunk the ACPI_GPE_EVENT_INFO structure by 40%. There is one such 5799193267Sjkimstructure for each GPE in the system, so the size of this structure is 5800193267Sjkimimportant. 5801129684Snjl 5802193267SjkimCPU stack requirement reduction: Cleaned up the method execution and object 5803193267Sjkimevaluation paths so that now a parameter structure is passed, instead of 5804193267Sjkimcopying the various method parameters over and over again. 5805129684Snjl 5806193267SjkimIn evregion.c: Correctly exit and reenter the interpreter region if and 5807193267Sjkimonly if dispatching an operation region request to a user-installed handler. 5808193267SjkimDo not exit/reenter when dispatching to a default handler (e.g., default 5809193267Sjkimsystem memory or I/O handlers) 5810129684Snjl 5811129684Snjl 5812193267SjkimNotes for updating drivers for the new GPE support. The following changes 5813193267Sjkimmust be made to ACPI-related device drivers that are attached to one or more 5814193267SjkimGPEs: (This information will be added to the ACPI CA Programmer Reference.) 5815129684Snjl 5816193267Sjkim1) AcpiInstallGpeHandler no longer automatically enables the GPE, you must 5817193267Sjkimexplicitly call AcpiEnableGpe. 5818193267Sjkim2) There is a new interface called AcpiSetGpeType. This should be called 5819193267Sjkimbefore enabling the GPE. Also, this interface will automatically disable 5820193267Sjkimthe GPE if it is currently enabled. 5821129684Snjl3) AcpiEnableGpe no longer supports a GPE type flag. 5822129684Snjl 5823129684SnjlSpecific drivers that must be changed: 5824129684Snjl1) EC driver: 5825193267Sjkim AcpiInstallGpeHandler (NULL, GpeNum, ACPI_GPE_EDGE_TRIGGERED, 5826129684SnjlAeGpeHandler, NULL); 5827129684Snjl AcpiSetGpeType (NULL, GpeNum, ACPI_GPE_TYPE_RUNTIME); 5828129684Snjl AcpiEnableGpe (NULL, GpeNum, ACPI_NOT_ISR); 5829129684Snjl 5830129684Snjl2) Button Drivers (Power, Lid, Sleep): 5831129684SnjlRun _PRW method under parent device 5832129684SnjlIf _PRW exists: /* This is a control-method button */ 5833129684Snjl Extract GPE number and possibly GpeDevice 5834129684Snjl AcpiSetGpeType (GpeDevice, GpeNum, ACPI_GPE_TYPE_WAKE_RUN); 5835129684Snjl AcpiEnableGpe (GpeDevice, GpeNum, ACPI_NOT_ISR); 5836129684Snjl 5837193267SjkimFor all other devices that have _PRWs, we automatically set the GPE type to 5838193267SjkimACPI_GPE_TYPE_WAKE, but the GPE is NOT automatically (wake) enabled. This 5839193267Sjkimmust be done on a selective basis, usually requiring some kind of user app 5840193267Sjkimto allow the user to pick the wake devices. 5841129684Snjl 5842129684Snjl 5843193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5844193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5845193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5846193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5847193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5848193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5849193267Sjkimthe compiler options used during generation. 5850129684Snjl 5851129684Snjl Previous Release: 5852129684Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5853129684Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5854129684Snjl Current Release: 5855167802Sjkim 5856129684Snjl Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total 5857129684Snjl Debug Version: 162.9K Code, 67.0K Data, 229.9K Total 5858129684Snjl 5859129684Snjl 5860129684Snjl 5861129684Snjl---------------------------------------- 5862128212Snjl02 April 2004. Summary of changes for version 20040402: 5863128212Snjl 5864128212Snjl1) ACPI CA Core Subsystem: 5865128212Snjl 5866193267SjkimFixed an interpreter problem where an indirect store through an ArgX 5867193267Sjkimparameter was incorrectly applying the "implicit conversion rules" during 5868193267Sjkimthe store. From the ACPI specification: "If the target is a method local or 5869193267Sjkimargument (LocalX or ArgX), no conversion is performed and the result is 5870193267Sjkimstored directly to the target". The new behavior is to disable implicit 5871193267Sjkimconversion during ALL stores to an ArgX. 5872128212Snjl 5873193267SjkimChanged the behavior of the _PRW method scan to ignore any and all errors 5874193267Sjkimreturned by a given _PRW. This prevents the scan from aborting from the 5875193267Sjkimfailure of any single _PRW. 5876128212Snjl 5877193267SjkimMoved the runtime configuration parameters from the global init procedure to 5878193267Sjkimstatic variables in acglobal.h. This will allow the host to override the 5879193267Sjkimdefault values easily. 5880128212Snjl 5881193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5882193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5883193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5884193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5885193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5886193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5887193267Sjkimthe compiler options used during generation. 5888128212Snjl 5889128212Snjl Previous Release: 5890128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5891128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5892128212Snjl Current Release: 5893128212Snjl Non-Debug Version: 77.0K Code, 11.4K Data, 88.4K Total 5894128212Snjl Debug Version: 161.0K Code, 66.3K Data, 227.3K Total 5895128212Snjl 5896128212Snjl 5897128212Snjl2) iASL Compiler/Disassembler: 5898128212Snjl 5899193267SjkimiASL now fully disassembles SSDTs. However, External() statements are not 5900193267Sjkimgenerated automatically for unresolved symbols at this time. This is a 5901193267Sjkimplanned feature for future implementation. 5902128212Snjl 5903193267SjkimFixed a scoping problem in the disassembler that occurs when the type of the 5904193267Sjkimtarget of a Scope() operator is overridden. This problem caused an 5905193267Sjkimincorrectly nested internal namespace to be constructed. 5906128212Snjl 5907193267SjkimAny warnings or errors that are emitted during disassembly are now commented 5908193267Sjkimout automatically so that the resulting file can be recompiled without any 5909193267Sjkimhand editing. 5910128212Snjl 5911128212Snjl---------------------------------------- 5912128212Snjl26 March 2004. Summary of changes for version 20040326: 5913128212Snjl 5914128212Snjl1) ACPI CA Core Subsystem: 5915128212Snjl 5916193267SjkimImplemented support for "wake" GPEs via interaction between GPEs and the 5917193267Sjkim_PRW methods. Every GPE that is pointed to by one or more _PRWs is 5918193267Sjkimidentified as a WAKE GPE and by default will no longer be enabled at 5919193267Sjkimruntime. Previously, we were blindly enabling all GPEs with a corresponding 5920193267Sjkim_Lxx or _Exx method - but most of these turn out to be WAKE GPEs anyway. We 5921193267Sjkimbelieve this has been the cause of thousands of "spurious" GPEs on some 5922128212Snjlsystems. 5923128212Snjl 5924193267SjkimThis new GPE behavior is can be reverted to the original behavior (enable 5925193267SjkimALL GPEs at runtime) via a runtime flag. 5926128212Snjl 5927193267SjkimFixed a problem where aliased control methods could not access objects 5928193267Sjkimproperly. The proper scope within the namespace was not initialized 5929193267Sjkim(transferred to the target of the aliased method) before executing the 5930193267Sjkimtarget method. 5931128212Snjl 5932193267SjkimFixed a potential race condition on internal object deletion on the return 5933193267Sjkimobject in AcpiEvaluateObject. 5934128212Snjl 5935193267SjkimIntegrated a fix for resource descriptors where both _MEM and _MTP were 5936193267Sjkimbeing extracted instead of just _MEM. (i.e. bitmask was incorrectly too 5937193267Sjkimwide, 0x0F instead of 0x03.) 5938128212Snjl 5939193267SjkimAdded a special case for ACPI_ROOT_OBJECT in AcpiUtGetNodeName, preventing a 5940193267Sjkimfault in some cases. 5941128212Snjl 5942128212SnjlUpdated Notify() values for debug statements in evmisc.c 5943128212Snjl 5944193267SjkimReturn proper status from AcpiUtMutexInitialize, not just simply AE_OK. 5945128212Snjl 5946193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 5947193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 5948193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 5949193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 5950193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 5951193267Sjkimthat these values will vary depending on the efficiency of the compiler and 5952193267Sjkimthe compiler options used during generation. 5953128212Snjl 5954128212Snjl Previous Release: 5955167802Sjkim 5956128212Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 5957128212Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 5958128212Snjl Current Release: 5959128212Snjl Non-Debug Version: 76.9K Code, 11.4K Data, 88.3K Total 5960128212Snjl Debug Version: 160.8K Code, 66.1K Data, 226.9K Total 5961128212Snjl 5962128212Snjl---------------------------------------- 5963127175Snjl11 March 2004. Summary of changes for version 20040311: 5964127175Snjl 5965127175Snjl1) ACPI CA Core Subsystem: 5966127175Snjl 5967193267SjkimFixed a problem where errors occurring during the parse phase of control 5968193267Sjkimmethod execution did not abort cleanly. For example, objects created and 5969193267Sjkiminstalled in the namespace were not deleted. This caused all subsequent 5970193267Sjkiminvocations of the method to return the AE_ALREADY_EXISTS exception. 5971127175Snjl 5972193267SjkimImplemented a mechanism to force a control method to "Serialized" execution 5973193267Sjkimif the method attempts to create namespace objects. (The root of the 5974193267SjkimAE_ALREADY_EXISTS problem.) 5975127175Snjl 5976193267SjkimImplemented support for the predefined _OSI "internal" control method. 5977193267SjkimInitial supported strings are "Linux", "Windows 2000", "Windows 2001", and 5978193267Sjkim"Windows 2001.1", and can be easily upgraded for new strings as necessary. 5979193267SjkimThis feature will allow "other" operating systems to execute the fully 5980193267Sjkimtested, "Windows" code path through the ASL code 5981127175Snjl 5982193267SjkimGlobal Lock Support: Now allows multiple acquires and releases with any 5983193267Sjkiminternal thread. Removed concept of "owning thread" for this special mutex. 5984127175Snjl 5985193267SjkimFixed two functions that were inappropriately declaring large objects on the 5986193267SjkimCPU stack: PsParseLoop, NsEvaluateRelative. Reduces the stack usage during 5987193267Sjkimmethod execution considerably. 5988127175Snjl 5989193267SjkimFixed a problem in the ACPI 2.0 FACS descriptor (actbl2.h) where the 5990193267SjkimS4Bios_f field was incorrectly defined as UINT32 instead of UINT32_BIT. 5991127175Snjl 5992193267SjkimFixed a problem where AcpiEvGpeDetect would fault if there were no GPEs 5993193267Sjkimdefined on the machine. 5994127175Snjl 5995193267SjkimImplemented two runtime options: One to force all control method execution 5996193267Sjkimto "Serialized" to mimic Windows behavior, another to disable _OSI support 5997193267Sjkimif it causes problems on a given machine. 5998127175Snjl 5999193267SjkimCode and Data Size: Current and previous core subsystem library sizes are 6000193267Sjkimshown below. These are the code and data sizes for the acpica.lib produced 6001193267Sjkimby the Microsoft Visual C++ 6.0 compiler, and these values do not include 6002193267Sjkimany ACPI driver or OSPM code. The debug version of the code includes the 6003193267Sjkimdebug output trace mechanism and has a much larger code and data size. Note 6004193267Sjkimthat these values will vary depending on the efficiency of the compiler and 6005193267Sjkimthe compiler options used during generation. 6006127175Snjl 6007127175Snjl Previous Release: 6008127175Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6009127175Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6010127175Snjl Current Release: 6011127175Snjl Non-Debug Version: 76.5K Code, 11.3K Data, 87.8K Total 6012127175Snjl Debug Version: 160.3K Code, 66.0K Data, 226.3K Total 6013127175Snjl 6014127175Snjl2) iASL Compiler/Disassembler: 6015127175Snjl 6016193267SjkimFixed an array size problem for FreeBSD that would cause the compiler to 6017193267Sjkimfault. 6018127175Snjl 6019127175Snjl---------------------------------------- 6020126372Snjl20 February 2004. Summary of changes for version 20040220: 6021126372Snjl 6022167802Sjkim 6023126372Snjl1) ACPI CA Core Subsystem: 6024126372Snjl 6025193267SjkimImplemented execution of _SxD methods for Device objects in the 6026126372SnjlGetObjectInfo interface. 6027126372Snjl 6028126372SnjlFixed calls to _SST method to pass the correct arguments. 6029126372Snjl 6030126372SnjlAdded a call to _SST on wake to restore to "working" state. 6031126372Snjl 6032193267SjkimCheck for End-Of-Buffer failure case in the WalkResources interface. 6033126372Snjl 6034193267SjkimIntegrated fix for 64-bit alignment issue in acglobal.h by moving two 6035193267Sjkimstructures to the beginning of the file. 6036126372Snjl 6037126372SnjlAfter wake, clear GPE status register(s) before enabling GPEs. 6038126372Snjl 6039193267SjkimAfter wake, clear/enable power button. (Perhaps we should clear/enable all 6040193267Sjkimfixed events upon wake.) 6041126372Snjl 6042126372SnjlFixed a couple of possible memory leaks in the Namespace manager. 6043126372Snjl 6044126372SnjlIntegrated latest acnetbsd.h file. 6045126372Snjl 6046126372Snjl---------------------------------------- 6047126372Snjl11 February 2004. Summary of changes for version 20040211: 6048126372Snjl 6049167802Sjkim 6050126372Snjl1) ACPI CA Core Subsystem: 6051126372Snjl 6052193267SjkimCompleted investigation and implementation of the call-by-reference 6053193267Sjkimmechanism for control method arguments. 6054126372Snjl 6055193267SjkimFixed a problem where a store of an object into an indexed package could 6056193267Sjkimfail if the store occurs within a different method than the method that 6057193267Sjkimcreated the package. 6058126372Snjl 6059193267SjkimFixed a problem where the ToDecimal operator could return incorrect results. 6060126372Snjl 6061193267SjkimFixed a problem where the CopyObject operator could fail on some of the more 6062193267Sjkimobscure objects (e.g., Reference objects.) 6063126372Snjl 6064193267SjkimImproved the output of the Debug object to display buffer, package, and 6065193267Sjkimindex objects. 6066126372Snjl 6067193267SjkimFixed a problem where constructs of the form "RefOf (ArgX)" did not return 6068193267Sjkimthe expected result. 6069126372Snjl 6070193267SjkimAdded permanent ACPI_REPORT_ERROR macros for all instances of the 6071126372SnjlACPI_AML_INTERNAL exception. 6072126372Snjl 6073126372SnjlIntegrated latest version of acfreebsd.h 6074126372Snjl 6075126372Snjl---------------------------------------- 6076126372Snjl16 January 2004. Summary of changes for version 20040116: 6077126372Snjl 6078193267SjkimThe purpose of this release is primarily to update the copyright years in 6079193267Sjkimeach module, thus causing a huge number of diffs. There are a few small 6080193267Sjkimfunctional changes, however. 6081126372Snjl 6082126372Snjl1) ACPI CA Core Subsystem: 6083126372Snjl 6084193267SjkimImproved error messages when there is a problem finding one or more of the 6085193267Sjkimrequired base ACPI tables 6086126372Snjl 6087126372SnjlReintroduced the definition of APIC_HEADER in actbl.h 6088126372Snjl 6089126372SnjlChanged definition of MADT_ADDRESS_OVERRIDE to 64 bits (actbl.h) 6090126372Snjl 6091126372SnjlRemoved extraneous reference to NewObj in dsmthdat.c 6092126372Snjl 6093126372Snjl2) iASL compiler 6094126372Snjl 6095193267SjkimFixed a problem introduced in December that disabled the correct disassembly 6096193267Sjkimof Resource Templates 6097126372Snjl 6098126372Snjl 6099126372Snjl---------------------------------------- 6100126372Snjl03 December 2003. Summary of changes for version 20031203: 6101126372Snjl 6102126372Snjl1) ACPI CA Core Subsystem: 6103126372Snjl 6104126372SnjlChanged the initialization of Operation Regions during subsystem 6105126372Snjlinit to perform two entire walks of the ACPI namespace; The first 6106126372Snjlto initialize the regions themselves, the second to execute the 6107126372Snjl_REG methods. This fixed some interdependencies across _REG 6108126372Snjlmethods found on some machines. 6109126372Snjl 6110126372SnjlFixed a problem where a Store(Local0, Local1) could simply update 6111126372Snjlthe object reference count, and not create a new copy of the 6112126372Snjlobject if the Local1 is uninitialized. 6113126372Snjl 6114126372SnjlImplemented support for the _SST reserved method during sleep 6115126372Snjltransitions. 6116126372Snjl 6117126372SnjlImplemented support to clear the SLP_TYP and SLP_EN bits when 6118126372Snjlwaking up, this is apparently required by some machines. 6119126372Snjl 6120193267SjkimWhen sleeping, clear the wake status only if SleepState is not S5. 6121126372Snjl 6122126372SnjlFixed a problem in AcpiRsExtendedIrqResource() where an incorrect 6123126372Snjlpointer arithmetic advanced a string pointer too far. 6124126372Snjl 6125126372SnjlFixed a problem in AcpiTbGetTablePtr() where a garbage pointer 6126126372Snjlcould be returned if the requested table has not been loaded. 6127126372Snjl 6128193267SjkimWithin the support for IRQ resources, restructured the handling of 6129126372Snjlthe active and edge/level bits. 6130126372Snjl 6131126372SnjlFixed a few problems in AcpiPsxExecute() where memory could be 6132126372Snjlleaked under certain error conditions. 6133126372Snjl 6134126372SnjlImproved error messages for the cases where the ACPI mode could 6135126372Snjlnot be entered. 6136126372Snjl 6137126372SnjlCode and Data Size: Current and previous core subsystem library 6138126372Snjlsizes are shown below. These are the code and data sizes for the 6139126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6140126372Snjlthese values do not include any ACPI driver or OSPM code. The 6141126372Snjldebug version of the code includes the debug output trace 6142126372Snjlmechanism and has a much larger code and data size. Note that 6143193267Sjkimthese values will vary depending on the efficiency of the compiler 6144126372Snjland the compiler options used during generation. 6145126372Snjl 6146126372Snjl Previous Release (20031029): 6147126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6148126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6149126372Snjl Current Release: 6150126372Snjl Non-Debug Version: 74.8K Code, 10.1K Data, 84.9K Total 6151126372Snjl Debug Version: 158.7K Code, 65.1K Data, 223.8K Total 6152126372Snjl 6153126372Snjl2) iASL Compiler/Disassembler: 6154126372Snjl 6155126372SnjlImplemented a fix for the iASL disassembler where a bad index was 6156126372Snjlgenerated. This was most noticeable on 64-bit platforms 6157126372Snjl 6158126372Snjl 6159126372Snjl---------------------------------------- 6160126372Snjl29 October 2003. Summary of changes for version 20031029: 6161126372Snjl 6162126372Snjl1) ACPI CA Core Subsystem: 6163126372Snjl 6164167802Sjkim 6165126372SnjlFixed a problem where a level-triggered GPE with an associated 6166126372Snjl_Lxx control method was incorrectly cleared twice. 6167126372Snjl 6168126372SnjlFixed a problem with the Field support code where an access can 6169126372Snjloccur beyond the end-of-region if the field is non-aligned but 6170126372Snjlextends to the very end of the parent region (resulted in an 6171126372SnjlAE_AML_REGION_LIMIT exception.) 6172126372Snjl 6173126372SnjlFixed a problem with ACPI Fixed Events where an RT Clock handler 6174193267Sjkimwould not get invoked on an RTC event. The RTC event bitmasks for 6175126372Snjlthe PM1 registers were not being initialized properly. 6176126372Snjl 6177126372SnjlImplemented support for executing _STA and _INI methods for 6178126372SnjlProcessor objects. Although this is currently not part of the 6179193267SjkimACPI specification, there is existing ASL code that depends on the 6180126372Snjlinit-time execution of these methods. 6181126372Snjl 6182126372SnjlImplemented and deployed a GetDescriptorName function to decode 6183126372Snjlthe various types of internal descriptors. Guards against null 6184126372Snjldescriptors during debug output also. 6185126372Snjl 6186126372SnjlImplemented and deployed a GetNodeName function to extract the 4- 6187193267Sjkimcharacter namespace node name. This function simplifies the debug 6188193267Sjkimand error output, as well as guarding against null pointers during 6189126372Snjloutput. 6190126372Snjl 6191126372SnjlImplemented and deployed the ACPI_FORMAT_UINT64 helper macro to 6192126372Snjlsimplify the debug and error output of 64-bit integers. This 6193126372Snjlmacro replaces the HIDWORD and LODWORD macros for dumping these 6194126372Snjlintegers. 6195126372Snjl 6196126372SnjlUpdated the implementation of the Stall() operator to only call 6197126372SnjlAcpiOsStall(), and also return an error if the operand is larger 6198126372Snjlthan 255. This preserves the required behavior of not 6199126372Snjlrelinquishing the processor, as would happen if AcpiOsSleep() was 6200126372Snjlcalled for "long stalls". 6201126372Snjl 6202126372SnjlConstructs of the form "Store(LocalX,LocalX)" where LocalX is not 6203126372Snjlinitialized are now treated as NOOPs. 6204126372Snjl 6205126372SnjlCleaned up a handful of warnings during 64-bit generation. 6206126372Snjl 6207126372SnjlFixed a reported error where and incorrect GPE number was passed 6208126372Snjlto the GPE dispatch handler. This value is only used for error 6209193267Sjkimoutput, however. Used this opportunity to clean up and streamline 6210126372Snjlthe GPE dispatch code. 6211126372Snjl 6212126372SnjlCode and Data Size: Current and previous core subsystem library 6213126372Snjlsizes are shown below. These are the code and data sizes for the 6214126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6215126372Snjlthese values do not include any ACPI driver or OSPM code. The 6216167802Sjkim 6217126372Snjldebug version of the code includes the debug output trace 6218126372Snjlmechanism and has a much larger code and data size. Note that 6219193267Sjkimthese values will vary depending on the efficiency of the compiler 6220126372Snjland the compiler options used during generation. 6221126372Snjl 6222126372Snjl Previous Release (20031002): 6223126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6224126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6225126372Snjl Current Release: 6226126372Snjl Non-Debug Version: 74.4K Code, 10.1K Data, 84.5K Total 6227126372Snjl Debug Version: 158.3K Code, 65.0K Data, 223.3K Total 6228126372Snjl 6229126372Snjl 6230126372Snjl2) iASL Compiler/Disassembler: 6231126372Snjl 6232193267SjkimUpdated the iASL compiler to return an error if the operand to the 6233126372SnjlStall() operator is larger than 255. 6234126372Snjl 6235126372Snjl 6236126372Snjl---------------------------------------- 6237126372Snjl02 October 2003. Summary of changes for version 20031002: 6238126372Snjl 6239126372Snjl 6240126372Snjl1) ACPI CA Core Subsystem: 6241126372Snjl 6242126372SnjlFixed a problem with Index Fields where the index was not 6243126372Snjlincremented for fields that require multiple writes to the 6244126372Snjlindex/data registers (Fields that are wider than the data 6245126372Snjlregister.) 6246126372Snjl 6247126372SnjlFixed a problem with all Field objects where a write could go 6248126372Snjlbeyond the end-of-field if the field was larger than the access 6249193267Sjkimgranularity and therefore required multiple writes to complete the 6250126372Snjlrequest. An extra write beyond the end of the field could happen 6251126372Snjlinadvertently. 6252126372Snjl 6253126372SnjlFixed a problem with Index Fields where a BUFFER_OVERFLOW error 6254126372Snjlwould incorrectly be returned if the width of the Data Register 6255126372Snjlwas larger than the specified field access width. 6256126372Snjl 6257126372SnjlCompleted fixes for LoadTable() and Unload() and verified their 6258126372Snjloperation. Implemented full support for the "DdbHandle" object 6259126372Snjlthroughout the ACPI CA subsystem. 6260126372Snjl 6261126372SnjlImplemented full support for the MADT and ECDT tables in the ACPI 6262126372SnjlCA header files. Even though these tables are not directly 6263126372Snjlconsumed by ACPI CA, the header definitions are useful for ACPI 6264126372Snjldevice drivers. 6265126372Snjl 6266126372SnjlIntegrated resource descriptor fixes posted to the Linux ACPI 6267126372Snjllist. This included checks for minimum descriptor length, and 6268126372Snjlsupport for trailing NULL strings within descriptors that have 6269126372Snjloptional string elements. 6270126372Snjl 6271126372SnjlCode and Data Size: Current and previous core subsystem library 6272126372Snjlsizes are shown below. These are the code and data sizes for the 6273126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6274126372Snjlthese values do not include any ACPI driver or OSPM code. The 6275126372Snjldebug version of the code includes the debug output trace 6276126372Snjlmechanism and has a much larger code and data size. Note that 6277193267Sjkimthese values will vary depending on the efficiency of the compiler 6278126372Snjland the compiler options used during generation. 6279126372Snjl 6280126372Snjl Previous Release (20030918): 6281126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6282126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6283126372Snjl Current Release: 6284126372Snjl Non-Debug Version: 74.1K Code, 9.7K Data, 83.8K Total 6285126372Snjl Debug Version: 157.9K Code, 64.8K Data, 222.7K Total 6286126372Snjl 6287126372Snjl 6288126372Snjl2) iASL Compiler: 6289126372Snjl 6290126372SnjlImplemented detection of non-ASCII characters within the input 6291126372Snjlsource ASL file. This catches attempts to compile binary (AML) 6292126372Snjlfiles early in the compile, with an informative error message. 6293126372Snjl 6294126372SnjlFixed a problem where the disassembler would fault if the output 6295193267Sjkimfilename could not be generated or if the output file could not be 6296126372Snjlopened. 6297126372Snjl 6298126372Snjl---------------------------------------- 6299126372Snjl18 September 2003. Summary of changes for version 20030918: 6300126372Snjl 6301126372Snjl 6302126372Snjl1) ACPI CA Core Subsystem: 6303126372Snjl 6304126372SnjlFound and fixed a longstanding problem with the late execution of 6305126372Snjlthe various deferred AML opcodes (such as Operation Regions, 6306126372SnjlBuffer Fields, Buffers, and Packages). If the name string 6307126372Snjlspecified for the name of the new object placed the object in a 6308126372Snjlscope other than the current scope, the initialization/execution 6309126372Snjlof the opcode failed. The solution to this problem was to 6310126372Snjlimplement a mechanism where the late execution of such opcodes 6311126372Snjldoes not attempt to lookup/create the name a second time in an 6312126372Snjlincorrect scope. This fixes the "region size computed 6313126372Snjlincorrectly" problem. 6314126372Snjl 6315193267SjkimFixed a call to AcpiHwRegisterWrite in hwregs.c that was causing a 6316126372SnjlGlobal Lock AE_BAD_PARAMETER error. 6317126372Snjl 6318126372SnjlFixed several 64-bit issues with prototypes, casting and data 6319126372Snjltypes. 6320126372Snjl 6321126372SnjlRemoved duplicate prototype from acdisasm.h 6322126372Snjl 6323126372SnjlFixed an issue involving EC Operation Region Detach (Shaohua Li) 6324126372Snjl 6325126372SnjlCode and Data Size: Current and previous core subsystem library 6326126372Snjlsizes are shown below. These are the code and data sizes for the 6327126372Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6328126372Snjlthese values do not include any ACPI driver or OSPM code. The 6329126372Snjldebug version of the code includes the debug output trace 6330126372Snjlmechanism and has a much larger code and data size. Note that 6331193267Sjkimthese values will vary depending on the efficiency of the compiler 6332126372Snjland the compiler options used during generation. 6333126372Snjl 6334126372Snjl Previous Release: 6335167802Sjkim 6336126372Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6337126372Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6338126372Snjl Current Release: 6339126372Snjl Non-Debug Version: 73.9K Code, 9.7K Data, 83.6K Total 6340126372Snjl Debug Version: 157.3K Code, 64.5K Data, 221.8K Total 6341126372Snjl 6342126372Snjl 6343126372Snjl2) Linux: 6344126372Snjl 6345126372SnjlFixed the AcpiOsSleep implementation in osunixxf.c to pass the 6346126372Snjlcorrect sleep time in seconds. 6347126372Snjl 6348126372Snjl---------------------------------------- 6349126372Snjl14 July 2003. Summary of changes for version 20030619: 6350126372Snjl 6351126372Snjl1) ACPI CA Core Subsystem: 6352126372Snjl 6353126372SnjlParse SSDTs in order discovered, as opposed to reverse order 6354126372Snjl(Hrvoje Habjanic) 6355126372Snjl 6356126372SnjlFixes from FreeBSD and NetBSD. (Frank van der Linden, Thomas 6357126372SnjlKlausner, 6358126372Snjl Nate Lawson) 6359126372Snjl 6360126372Snjl 6361126372Snjl2) Linux: 6362126372Snjl 6363126372SnjlDynamically allocate SDT list (suggested by Andi Kleen) 6364126372Snjl 6365126372Snjlproc function return value cleanups (Andi Kleen) 6366126372Snjl 6367126372SnjlCorrectly handle NMI watchdog during long stalls (Andrew Morton) 6368126372Snjl 6369126372SnjlMake it so acpismp=force works (reported by Andrew Morton) 6370126372Snjl 6371126372Snjl 6372126372Snjl---------------------------------------- 6373117521Snjl19 June 2003. Summary of changes for version 20030619: 6374117521Snjl 6375117521Snjl1) ACPI CA Core Subsystem: 6376117521Snjl 6377193267SjkimFix To/FromBCD, eliminating the need for an arch-specific #define. 6378117521Snjl 6379117521SnjlDo not acquire a semaphore in the S5 shutdown path. 6380117521Snjl 6381117521SnjlFix ex_digits_needed for 0. (Takayoshi Kochi) 6382117521Snjl 6383117521SnjlFix sleep/stall code reversal. (Andi Kleen) 6384117521Snjl 6385117521SnjlRevert a change having to do with control method calling 6386117521Snjlsemantics. 6387117521Snjl 6388117521Snjl2) Linux: 6389117521Snjl 6390117521Snjlacpiphp update (Takayoshi Kochi) 6391117521Snjl 6392117521SnjlExport acpi_disabled for sonypi (Stelian Pop) 6393117521Snjl 6394117521SnjlMention acpismp=force in config help 6395117521Snjl 6396117521SnjlRe-add acpitable.c and acpismp=force. This improves backwards 6397167802Sjkim 6398193267Sjkimcompatibility and also cleans up the code to a significant degree. 6399117521Snjl 6400117521SnjlAdd ASUS Value-add driver (Karol Kozimor and Julien Lerouge) 6401117521Snjl 6402117521Snjl---------------------------------------- 6403117521Snjl22 May 2003. Summary of changes for version 20030522: 6404117521Snjl 6405117521Snjl1) ACPI CA Core Subsystem: 6406117521Snjl 6407117521SnjlFound and fixed a reported problem where an AE_NOT_FOUND error 6408117521Snjloccurred occasionally during _BST evaluation. This turned out to 6409117521Snjlbe an Owner ID allocation issue where a called method did not get 6410193267Sjkima new ID assigned to it. Eventually, (after 64k calls), the Owner 6411193267SjkimID UINT16 would wraparound so that the ID would be the same as the 6412126372Snjlcaller's and the called method would delete the caller's 6413117521Snjlnamespace. 6414117521Snjl 6415117521SnjlImplemented extended error reporting for control methods that are 6416117521Snjlaborted due to a run-time exception. Output includes the exact 6417193267SjkimAML instruction that caused the method abort, a dump of the method 6418126372Snjllocals and arguments at the time of the abort, and a trace of all 6419126372Snjlnested control method calls. 6420117521Snjl 6421117521SnjlModified the interpreter to allow the creation of buffers of zero 6422117521Snjllength from the AML code. Implemented new code to ensure that no 6423117521Snjlattempt is made to actually allocate a memory buffer (of length 6424193267Sjkimzero) - instead, a simple buffer object with a NULL buffer pointer 6425126372Snjland length zero is created. A warning is no longer issued when 6426126372Snjlthe AML attempts to create a zero-length buffer. 6427117521Snjl 6428117521SnjlImplemented a workaround for the "leading asterisk issue" in 6429117521Snjl_HIDs, _UIDs, and _CIDs in the AML interpreter. One leading 6430117521Snjlasterisk is automatically removed if present in any HID, UID, or 6431117521SnjlCID strings. The iASL compiler will still flag this asterisk as 6432117521Snjlan error, however. 6433117521Snjl 6434193267SjkimImplemented full support for _CID methods that return a package of 6435193267Sjkimmultiple CIDs (Compatible IDs). The AcpiGetObjectInfo() interface 6436126372Snjlnow additionally returns a device _CID list if present. This 6437126372Snjlrequired a change to the external interface in order to pass an 6438126372SnjlACPI_BUFFER object as a parameter since the _CID list is of 6439117521Snjlvariable length. 6440117521Snjl 6441117521SnjlFixed a problem with the new AE_SAME_HANDLER exception where 6442117521Snjlhandler initialization code did not know about this exception. 6443117521Snjl 6444117521SnjlCode and Data Size: Current and previous core subsystem library 6445117521Snjlsizes are shown below. These are the code and data sizes for the 6446117521Snjlacpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and 6447117521Snjlthese values do not include any ACPI driver or OSPM code. The 6448117521Snjldebug version of the code includes the debug output trace 6449117521Snjlmechanism and has a much larger code and data size. Note that 6450193267Sjkimthese values will vary depending on the efficiency of the compiler 6451126372Snjland the compiler options used during generation. 6452117521Snjl 6453117521Snjl Previous Release (20030509): 6454117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6455117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6456117521Snjl Current Release: 6457117521Snjl Non-Debug Version: 73.7K Code, 9.7K Data, 83.4K Total 6458117521Snjl Debug Version: 156.9K Code, 64.2K Data, 221.1K Total 6459117521Snjl 6460117521Snjl 6461117521Snjl2) Linux: 6462117521Snjl 6463117521SnjlFixed a bug in which we would reinitialize the ACPI interrupt 6464193267Sjkimafter it was already working, thus disabling all ACPI and the IRQs 6465126372Snjlfor any other device sharing the interrupt. (Thanks to Stian 6466117521SnjlJordet) 6467117521Snjl 6468117521SnjlToshiba driver update (John Belmonte) 6469117521Snjl 6470117521SnjlReturn only 0 or 1 for our interrupt handler status (Andrew 6471117521SnjlMorton) 6472117521Snjl 6473117521Snjl 6474117521Snjl3) iASL Compiler: 6475117521Snjl 6476117521SnjlFixed a reported problem where multiple (nested) ElseIf() 6477117521Snjlstatements were not handled correctly by the compiler, resulting 6478117521Snjlin incorrect warnings and incorrect AML code. This was a problem 6479117521Snjlin both the ASL parser and the code generator. 6480117521Snjl 6481117521Snjl 6482117521Snjl4) Documentation: 6483117521Snjl 6484193267SjkimAdded changes to existing interfaces, new exception codes, and new 6485126372Snjltext concerning reference count object management versus garbage 6486126372Snjlcollection. 6487117521Snjl 6488117521Snjl---------------------------------------- 6489117521Snjl09 May 2003. Summary of changes for version 20030509. 6490117521Snjl 6491117521Snjl 6492117521Snjl1) ACPI CA Core Subsystem: 6493117521Snjl 6494117521SnjlChanged the subsystem initialization sequence to hold off 6495193267Sjkiminstallation of address space handlers until the hardware has been 6496193267Sjkiminitialized and the system has entered ACPI mode. This is because 6497126372Snjlthe installation of space handlers can cause _REG methods to be 6498193267Sjkimrun. Previously, the _REG methods could potentially be run before 6499126372SnjlACPI mode was enabled. 6500117521Snjl 6501193267SjkimFixed some memory leak issues related to address space handler and 6502126372Snjlnotify handler installation. There were some problems with the 6503126372Snjlreference count mechanism caused by the fact that the handler 6504117521Snjlobjects are shared across several namespace objects. 6505117521Snjl 6506117521SnjlFixed a reported problem where reference counts within the 6507117521Snjlnamespace were not properly updated when named objects created by 6508117521Snjlmethod execution were deleted. 6509117521Snjl 6510117521SnjlFixed a reported problem where multiple SSDTs caused a deletion 6511117521Snjlissue during subsystem termination. Restructured the table data 6512117521Snjlstructures to simplify the linked lists and the related code. 6513117521Snjl 6514117521SnjlFixed a problem where the table ID associated with secondary 6515193267Sjkimtables (SSDTs) was not being propagated into the namespace objects 6516126372Snjlcreated by those tables. This would only present a problem for 6517126372Snjltables that are unloaded at run-time, however. 6518117521Snjl 6519117521SnjlUpdated AcpiOsReadable and AcpiOsWritable to use the ACPI_SIZE 6520117521Snjltype as the length parameter (instead of UINT32). 6521117521Snjl 6522117521SnjlSolved a long-standing problem where an ALREADY_EXISTS error 6523117521Snjlappears on various systems. This problem could happen when there 6524117521Snjlare multiple PCI_Config operation regions under a single PCI root 6525117521Snjlbus. This doesn't happen very frequently, but there are some 6526117521Snjlsystems that do this in the ASL. 6527117521Snjl 6528117521SnjlFixed a reported problem where the internal DeleteNode function 6529117521Snjlwas incorrectly handling the case where a namespace node was the 6530117521Snjlfirst in the parent's child list, and had additional peers (not 6531117521Snjlthe only child, but first in the list of children.) 6532117521Snjl 6533193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6534126372Snjlbelow. These are the code and data sizes for the acpica.lib 6535126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6536126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6537126372Snjlversion of the code includes the debug output trace mechanism and 6538193267Sjkimhas a much larger code and data size. Note that these values will 6539126372Snjlvary depending on the efficiency of the compiler and the compiler 6540126372Snjloptions used during generation. 6541117521Snjl 6542117521Snjl Previous Release 6543117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6544117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6545117521Snjl Current Release: 6546117521Snjl Non-Debug Version: 73.4K Code, 9.7K Data, 83.1K Total 6547117521Snjl Debug Version: 156.1K Code, 63.9K Data, 220.0K Total 6548117521Snjl 6549117521Snjl 6550117521Snjl2) Linux: 6551117521Snjl 6552117521SnjlAllow ":" in OS override string (Ducrot Bruno) 6553117521Snjl 6554117521SnjlKobject fix (Greg KH) 6555117521Snjl 6556117521Snjl 6557117521Snjl3 iASL Compiler/Disassembler: 6558117521Snjl 6559117521SnjlFixed a problem in the generation of the C source code files (AML 6560117521Snjlis emitted in C source statements for BIOS inclusion) where the 6561193267SjkimAscii dump that appears within a C comment at the end of each line 6562126372Snjlcould cause a compile time error if the AML sequence happens to 6563126372Snjlhave an open comment or close comment sequence embedded. 6564117521Snjl 6565117521Snjl 6566117521Snjl---------------------------------------- 6567117521Snjl24 April 2003. Summary of changes for version 20030424. 6568117521Snjl 6569117521Snjl 6570117521Snjl1) ACPI CA Core Subsystem: 6571117521Snjl 6572117521SnjlSupport for big-endian systems has been implemented. Most of the 6573193267Sjkimsupport has been invisibly added behind big-endian versions of the 6574126372SnjlACPI_MOVE_* macros. 6575117521Snjl 6576117521SnjlFixed a problem in AcpiHwDisableGpeBlock() and 6577117521SnjlAcpiHwClearGpeBlock() where an incorrect offset was passed to the 6578117521Snjllow level hardware write routine. The offset parameter was 6579193267Sjkimactually eliminated from the low level read/write routines because 6580126372Snjlthey had become obsolete. 6581117521Snjl 6582117521SnjlFixed a problem where a handler object was deleted twice during 6583117521Snjlthe removal of a fixed event handler. 6584117521Snjl 6585117521Snjl 6586117521Snjl2) Linux: 6587117521Snjl 6588117521SnjlA fix for SMP systems with link devices was contributed by 6589167802Sjkim 6590117521SnjlCompaq's Dan Zink. 6591117521Snjl 6592117521Snjl(2.5) Return whether we handled the interrupt in our IRQ handler. 6593193267Sjkim(Linux ISRs no longer return void, so we can propagate the handler 6594126372Snjlreturn value from the ACPI CA core back to the OS.) 6595117521Snjl 6596117521Snjl 6597167802Sjkim 6598117521Snjl3) Documentation: 6599117521Snjl 6600117521SnjlThe ACPI CA Programmer Reference has been updated to reflect new 6601117521Snjlinterfaces and changes to existing interfaces. 6602117521Snjl 6603117521Snjl---------------------------------------- 6604117521Snjl28 March 2003. Summary of changes for version 20030328. 6605117521Snjl 6606117521Snjl1) ACPI CA Core Subsystem: 6607117521Snjl 6608117521SnjlThe GPE Block Device support has been completed. New interfaces 6609117521Snjlare AcpiInstallGpeBlock and AcpiRemoveGpeBlock. The Event 6610117521Snjlinterfaces (enable, disable, clear, getstatus) have been split 6611117521Snjlinto separate interfaces for Fixed Events and General Purpose 6612117521SnjlEvents (GPEs) in order to support GPE Block Devices properly. 6613117521Snjl 6614117521SnjlFixed a problem where the error message "Failed to acquire 6615117521Snjlsemaphore" would appear during operations on the embedded 6616117521Snjlcontroller (EC). 6617117521Snjl 6618193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6619126372Snjlbelow. These are the code and data sizes for the acpica.lib 6620126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6621126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6622126372Snjlversion of the code includes the debug output trace mechanism and 6623193267Sjkimhas a much larger code and data size. Note that these values will 6624126372Snjlvary depending on the efficiency of the compiler and the compiler 6625126372Snjloptions used during generation. 6626117521Snjl 6627117521Snjl Previous Release 6628117521Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6629117521Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6630117521Snjl Current Release: 6631117521Snjl Non-Debug Version: 73.7K Code, 9.5K Data, 83.2K Total 6632117521Snjl Debug Version: 156.1K Code, 63.6K Data, 219.7K Total 6633117521Snjl 6634117521Snjl 6635117521Snjl---------------------------------------- 6636114237Snjl28 February 2003. Summary of changes for version 20030228. 6637114237Snjl 6638114237Snjl 6639114237Snjl1) ACPI CA Core Subsystem: 6640114237Snjl 6641114237SnjlThe GPE handling and dispatch code has been completely overhauled 6642114237Snjlin preparation for support of GPE Block Devices (ID ACPI0006). 6643114237SnjlThis affects internal data structures and code only; there should 6644114237Snjlbe no differences visible externally. One new file has been 6645114237Snjladded, evgpeblk.c 6646114237Snjl 6647114237SnjlThe FADT fields GPE0_BLK_LEN and GPE1_BLK_LEN are now the only 6648114237Snjlfields that are used to determine the GPE block lengths. The 6649114237SnjlREGISTER_BIT_WIDTH field of the X_GPEx_BLK extended address 6650193267Sjkimstructures are ignored. This is per the ACPI specification but it 6651126372Snjlisn't very clear. The full 256 Block 0/1 GPEs are now supported 6652193267Sjkim(the use of REGISTER_BIT_WIDTH limited the number of GPEs to 128). 6653114237Snjl 6654114237SnjlIn the SCI interrupt handler, removed the read of the PM1_CONTROL 6655114237Snjlregister to look at the SCI_EN bit. On some machines, this read 6656114237Snjlcauses an SMI event and greatly slows down SCI events. (This may 6657114237Snjlin fact be the cause of slow battery status response on some 6658114237Snjlsystems.) 6659114237Snjl 6660193267SjkimFixed a problem where a store of a NULL string to a package object 6661126372Snjlcould cause the premature deletion of the object. This was seen 6662126372Snjlduring execution of the battery _BIF method on some systems, 6663126372Snjlresulting in no battery data being returned. 6664114237Snjl 6665114237SnjlAdded AcpiWalkResources interface to simplify parsing of resource 6666114237Snjllists. 6667114237Snjl 6668193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6669126372Snjlbelow. These are the code and data sizes for the acpica.lib 6670126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6671126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6672126372Snjlversion of the code includes the debug output trace mechanism and 6673193267Sjkimhas a much larger code and data size. Note that these values will 6674126372Snjlvary depending on the efficiency of the compiler and the compiler 6675126372Snjloptions used during generation. 6676114237Snjl 6677114237Snjl Previous Release 6678114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6679114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6680114237Snjl Current Release: 6681114237Snjl Non-Debug Version: 72.3K Code, 9.5K Data, 81.8K Total 6682114237Snjl Debug Version: 154.0K Code, 63.4K Data, 217.4K Total 6683114237Snjl 6684114237Snjl 6685114237Snjl2) Linux 6686114237Snjl 6687114237SnjlS3 fixes (Ole Rohne) 6688114237Snjl 6689114237SnjlUpdate ACPI PHP driver with to use new acpi_walk_resource API 6690114237Snjl(Bjorn Helgaas) 6691114237Snjl 6692114237SnjlAdd S4BIOS support (Pavel Machek) 6693114237Snjl 6694114237SnjlMap in entire table before performing checksum (John Stultz) 6695114237Snjl 6696193267SjkimExpand the mem= cmdline to allow the specification of reserved and 6697126372SnjlACPI DATA blocks (Pavel Machek) 6698114237Snjl 6699114237SnjlNever use ACPI on VISWS 6700114237Snjl 6701114237SnjlFix derive_pci_id (Ducrot Bruno, Alvaro Lopez) 6702114237Snjl 6703114237SnjlRevert a change that allowed P_BLK lengths to be 4 or 5. This is 6704114237Snjlcausing us to think that some systems support C2 when they really 6705114237Snjldon't. 6706114237Snjl 6707114237SnjlDo not count processor objects for non-present CPUs (Thanks to 6708114237SnjlDominik Brodowski) 6709114237Snjl 6710114237Snjl 6711114237Snjl3) iASL Compiler: 6712114237Snjl 6713114237SnjlFixed a problem where ASL include files could not be found and 6714114237Snjlopened. 6715114237Snjl 6716114237SnjlAdded support for the _PDC reserved name. 6717114237Snjl 6718114237Snjl 6719117521Snjl---------------------------------------- 6720114237Snjl22 January 2003. Summary of changes for version 20030122. 6721114237Snjl 6722114237Snjl 6723114237Snjl1) ACPI CA Core Subsystem: 6724114237Snjl 6725114237SnjlAdded a check for constructs of the form: Store (Local0, Local0) 6726114237Snjlwhere Local0 is not initialized. Apparently, some BIOS 6727193267Sjkimprogrammers believe that this is a NOOP. Since this store doesn't 6728126372Snjldo anything anyway, the new prototype behavior will ignore this 6729126372Snjlerror. This is a case where we can relax the strict checking in 6730126372Snjlthe interpreter in the name of compatibility. 6731114237Snjl 6732114237Snjl 6733114237Snjl2) Linux 6734114237Snjl 6735114237SnjlThe AcpiSrc Source Conversion Utility has been released with the 6736114237SnjlLinux package for the first time. This is the utility that is 6737193267Sjkimused to convert the ACPI CA base source code to the Linux version. 6738114237Snjl 6739114237Snjl(Both) Handle P_BLK lengths shorter than 6 more gracefully 6740114237Snjl 6741114237Snjl(Both) Move more headers to include/acpi, and delete an unused 6742114237Snjlheader. 6743114237Snjl 6744114237Snjl(Both) Move drivers/acpi/include directory to include/acpi 6745114237Snjl 6746114237Snjl(Both) Boot functions don't use cmdline, so don't pass it around 6747114237Snjl 6748114237Snjl(Both) Remove include of unused header (Adrian Bunk) 6749114237Snjl 6750114237Snjl(Both) acpiphp.h includes both linux/acpi.h and acpi_bus.h. Since 6751114237Snjlthe 6752193267Sjkimformer now also includes the latter, acpiphp.h only needs the one, 6753126372Snjlnow. 6754114237Snjl 6755193267Sjkim(2.5) Make it possible to select method of bios restoring after S3 6756114237Snjlresume. [=> no more ugly ifdefs] (Pavel Machek) 6757114237Snjl 6758114237Snjl(2.5) Make proc write interfaces work (Pavel Machek) 6759114237Snjl 6760114237Snjl(2.5) Properly init/clean up in cpufreq/acpi (Dominik Brodowski) 6761114237Snjl 6762114237Snjl(2.5) Break out ACPI Perf code into its own module, under cpufreq 6763114237Snjl(Dominik Brodowski) 6764114237Snjl 6765114237Snjl(2.4) S4BIOS support (Ducrot Bruno) 6766114237Snjl 6767114237Snjl(2.4) Fix acpiphp_glue.c for latest ACPI struct changes (Sergio 6768114237SnjlVisinoni) 6769114237Snjl 6770114237Snjl 6771114237Snjl3) iASL Compiler: 6772114237Snjl 6773114237SnjlAdded support to disassemble SSDT and PSDTs. 6774114237Snjl 6775114237SnjlImplemented support to obtain SSDTs from the Windows registry if 6776114237Snjlavailable. 6777114237Snjl 6778114237Snjl 6779102550Siwasaki---------------------------------------- 6780114237Snjl09 January 2003. Summary of changes for version 20030109. 6781114237Snjl 6782114237Snjl1) ACPI CA Core Subsystem: 6783114237Snjl 6784114237SnjlChanged the behavior of the internal Buffer-to-String conversion 6785193267Sjkimfunction. The current ACPI specification states that the contents 6786126372Snjlof the buffer are "converted to a string of two-character 6787126372Snjlhexadecimal numbers, each separated by a space". Unfortunately, 6788193267Sjkimthis definition is not backwards compatible with existing ACPI 1.0 6789193267Sjkimimplementations (although the behavior was not defined in the ACPI 6790126372Snjl1.0 specification). The new behavior simply copies data from the 6791193267Sjkimbuffer to the string until a null character is found or the end of 6792126372Snjlthe buffer is reached. The new String object is always null 6793126372Snjlterminated. This problem was seen during the generation of _BIF 6794126372Snjlbattery data where incorrect strings were returned for battery 6795126372Snjltype, etc. This will also require an errata to the ACPI 6796126372Snjlspecification. 6797114237Snjl 6798114237SnjlRenamed all instances of NATIVE_UINT and NATIVE_INT to 6799114237SnjlACPI_NATIVE_UINT and ACPI_NATIVE_INT, respectively. 6800114237Snjl 6801114237SnjlCopyright in all module headers (both Linux and non-Linux) has be 6802114237Snjlupdated to 2003. 6803114237Snjl 6804193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6805126372Snjlbelow. These are the code and data sizes for the acpica.lib 6806126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6807126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6808126372Snjlversion of the code includes the debug output trace mechanism and 6809193267Sjkimhas a much larger code and data size. Note that these values will 6810126372Snjlvary depending on the efficiency of the compiler and the compiler 6811126372Snjloptions used during generation. 6812114237Snjl 6813114237Snjl Previous Release 6814114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6815114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6816114237Snjl Current Release: 6817114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6818114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6819114237Snjl 6820114237Snjl 6821114237Snjl2) Linux 6822114237Snjl 6823114237SnjlFixed an oops on module insertion/removal (Matthew Tippett) 6824114237Snjl 6825114237Snjl(2.4) Fix to handle dynamic size of mp_irqs (Joerg Prante) 6826114237Snjl 6827114237Snjl(2.5) Replace pr_debug (Randy Dunlap) 6828114237Snjl 6829114237Snjl(2.5) Remove usage of CPUFREQ_ALL_CPUS (Dominik Brodowski) 6830114237Snjl 6831114237Snjl(Both) Eliminate spawning of thread from timer callback, in favor 6832114237Snjlof schedule_work() 6833114237Snjl 6834114237Snjl(Both) Show Lid status in /proc (Zdenek OGAR Skalak) 6835114237Snjl 6836114237Snjl(Both) Added define for Fixed Function HW region (Matthew Wilcox) 6837114237Snjl 6838114237Snjl(Both) Add missing statics to button.c (Pavel Machek) 6839114237Snjl 6840114237SnjlSeveral changes have been made to the source code translation 6841114237Snjlutility that generates the Linux Code in order to make the code 6842114237Snjlmore "Linux-like": 6843114237Snjl 6844114237SnjlAll typedefs on structs and unions have been removed in keeping 6845114237Snjlwith the Linux coding style. 6846114237Snjl 6847114237SnjlRemoved the non-Linux SourceSafe module revision number from each 6848114237Snjlmodule header. 6849114237Snjl 6850114237SnjlCompleted major overhaul of symbols to be lowercased for linux. 6851114237SnjlDoubled the number of symbols that are lowercased. 6852114237Snjl 6853114237SnjlFixed a problem where identifiers within procedure headers and 6854114237Snjlwithin quotes were not fully lower cased (they were left with a 6855114237Snjlstarting capital.) 6856114237Snjl 6857114237SnjlSome C macros whose only purpose is to allow the generation of 16- 6858114237Snjlbit code are now completely removed in the Linux code, increasing 6859114237Snjlreadability and maintainability. 6860114237Snjl 6861114237Snjl---------------------------------------- 6862114237Snjl 6863114237Snjl12 December 2002. Summary of changes for version 20021212. 6864114237Snjl 6865114237Snjl 6866114237Snjl1) ACPI CA Core Subsystem: 6867114237Snjl 6868114237SnjlFixed a problem where the creation of a zero-length AML Buffer 6869114237Snjlwould cause a fault. 6870114237Snjl 6871193267SjkimFixed a problem where a Buffer object that pointed to a static AML 6872126372Snjlbuffer (in an ACPI table) could inadvertently be deleted, causing 6873126372Snjlmemory corruption. 6874114237Snjl 6875114237SnjlFixed a problem where a user buffer (passed in to the external 6876114237SnjlACPI CA interfaces) could be overwritten if the buffer was too 6877114237Snjlsmall to complete the operation, causing memory corruption. 6878114237Snjl 6879114237SnjlFixed a problem in the Buffer-to-String conversion code where a 6880114237Snjlstring of length one was always returned, regardless of the size 6881114237Snjlof the input Buffer object. 6882114237Snjl 6883114237SnjlRemoved the NATIVE_CHAR data type across the entire source due to 6884114237Snjllack of need and lack of consistent use. 6885114237Snjl 6886193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6887126372Snjlbelow. These are the code and data sizes for the acpica.lib 6888126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6889126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6890126372Snjlversion of the code includes the debug output trace mechanism and 6891193267Sjkimhas a much larger code and data size. Note that these values will 6892126372Snjlvary depending on the efficiency of the compiler and the compiler 6893126372Snjloptions used during generation. 6894114237Snjl 6895114237Snjl Previous Release 6896114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6897114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6898114237Snjl Current Release: 6899114237Snjl Non-Debug Version: 72.0K Code, 9.5K Data, 81.5K Total 6900114237Snjl Debug Version: 153.0K Code, 62.9K Data, 215.9K Total 6901114237Snjl 6902114237Snjl 6903114237Snjl---------------------------------------- 6904114237Snjl05 December 2002. Summary of changes for version 20021205. 6905114237Snjl 6906114237Snjl1) ACPI CA Core Subsystem: 6907114237Snjl 6908114237SnjlFixed a problem where a store to a String or Buffer object could 6909114237Snjlcause corruption of the DSDT if the object type being stored was 6910114237Snjlthe same as the target object type and the length of the object 6911114237Snjlbeing stored was equal to or smaller than the original (existing) 6912114237Snjltarget object. This was seen to cause corruption of battery _BIF 6913114237Snjlbuffers if the _BIF method modified the buffer on the fly. 6914114237Snjl 6915193267SjkimFixed a problem where an internal error was generated if a control 6916126372Snjlmethod invocation was used in an OperationRegion, Buffer, or 6917126372SnjlPackage declaration. This was caused by the deferred parsing of 6918126372Snjlthe control method and thus the deferred creation of the internal 6919126372Snjlmethod object. The solution to this problem was to create the 6920126372Snjlinternal method object at the moment the method is encountered in 6921126372Snjlthe first pass - so that subsequent references to the method will 6922126372Snjlable to obtain the required parameter count and thus properly 6923126372Snjlparse the method invocation. This problem presented itself as an 6924126372SnjlAE_AML_INTERNAL during the pass 1 parse phase during table load. 6925114237Snjl 6926114237SnjlFixed a problem where the internal String object copy routine did 6927193267Sjkimnot always allocate sufficient memory for the target String object 6928126372Snjland caused memory corruption. This problem was seen to cause 6929126372Snjl"Allocation already present in list!" errors as memory allocation 6930126372Snjlbecame corrupted. 6931114237Snjl 6932193267SjkimImplemented a new function for the evaluation of namespace objects 6933126372Snjlthat allows the specification of the allowable return object 6934126372Snjltypes. This simplifies a lot of code that checks for a return 6935126372Snjlobject of one or more specific objects returned from the 6936114237Snjlevaluation (such as _STA, etc.) This may become and external 6937114237Snjlfunction if it would be useful to ACPI-related drivers. 6938114237Snjl 6939114237SnjlCompleted another round of prefixing #defines with "ACPI_" for 6940114237Snjlclarity. 6941114237Snjl 6942114237SnjlCompleted additional code restructuring to allow more modular 6943114237Snjllinking for iASL compiler and AcpiExec. Several files were split 6944114237Snjlcreating new files. New files: nsparse.c dsinit.c evgpe.c 6945114237Snjl 6946114237SnjlImplemented an abort mechanism to terminate an executing control 6947193267Sjkimmethod via the AML debugger. This feature is useful for debugging 6948126372Snjlcontrol methods that depend (wait) for specific hardware 6949126372Snjlresponses. 6950114237Snjl 6951193267SjkimCode and Data Size: Current core subsystem library sizes are shown 6952126372Snjlbelow. These are the code and data sizes for the acpica.lib 6953126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 6954126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 6955126372Snjlversion of the code includes the debug output trace mechanism and 6956193267Sjkimhas a much larger code and data size. Note that these values will 6957126372Snjlvary depending on the efficiency of the compiler and the compiler 6958126372Snjloptions used during generation. 6959114237Snjl 6960114237Snjl Previous Release 6961114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 6962114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 6963114237Snjl Current Release: 6964114237Snjl Non-Debug Version: 72.1K Code, 9.5K Data, 81.6K Total 6965114237Snjl Debug Version: 152.7K Code, 62.7K Data, 215.4K Total 6966114237Snjl 6967114237Snjl 6968114237Snjl2) iASL Compiler/Disassembler 6969114237Snjl 6970114237SnjlFixed a compiler code generation problem for "Interrupt" Resource 6971114237SnjlDescriptors. If specified in the ASL, the optional "Resource 6972114237SnjlSource Index" and "Resource Source" fields were not inserted into 6973114237Snjlthe correct location within the AML resource descriptor, creating 6974114237Snjlan invalid descriptor. 6975114237Snjl 6976193267SjkimFixed a disassembler problem for "Interrupt" resource descriptors. 6977126372SnjlThe optional "Resource Source Index" and "Resource Source" fields 6978126372Snjlwere ignored. 6979114237Snjl 6980114237Snjl 6981114237Snjl---------------------------------------- 6982114237Snjl22 November 2002. Summary of changes for version 20021122. 6983114237Snjl 6984114237Snjl 6985114237Snjl1) ACPI CA Core Subsystem: 6986114237Snjl 6987114237SnjlFixed a reported problem where an object stored to a Method Local 6988114237Snjlor Arg was not copied to a new object during the store - the 6989114237Snjlobject pointer was simply copied to the Local/Arg. This caused 6990114237Snjlall subsequent operations on the Local/Arg to also affect the 6991114237Snjloriginal source of the store operation. 6992114237Snjl 6993114237SnjlFixed a problem where a store operation to a Method Local or Arg 6994114237Snjlwas not completed properly if the Local/Arg contained a reference 6995114237Snjl(from RefOf) to a named field. The general-purpose store-to- 6996114237Snjlnamespace-node code is now used so that this case is handled 6997114237Snjlautomatically. 6998114237Snjl 6999193267SjkimFixed a problem where the internal object copy routine would cause 7000126372Snjla protection fault if the object being copied was a Package and 7001126372Snjlcontained either 1) a NULL package element or 2) a nested sub- 7002114237Snjlpackage. 7003114237Snjl 7004114237SnjlFixed a problem with the GPE initialization that resulted from an 7005114237Snjlambiguity in the ACPI specification. One section of the 7006114237Snjlspecification states that both the address and length of the GPE 7007193267Sjkimblock must be zero if the block is not supported. Another section 7008126372Snjlimplies that only the address need be zero if the block is not 7009193267Sjkimsupported. The code has been changed so that both the address and 7010126372Snjlthe length must be non-zero to indicate a valid GPE block (i.e., 7011126372Snjlif either the address or the length is zero, the GPE block is 7012126372Snjlinvalid.) 7013114237Snjl 7014193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7015126372Snjlbelow. These are the code and data sizes for the acpica.lib 7016126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7017126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7018126372Snjlversion of the code includes the debug output trace mechanism and 7019193267Sjkimhas a much larger code and data size. Note that these values will 7020126372Snjlvary depending on the efficiency of the compiler and the compiler 7021126372Snjloptions used during generation. 7022114237Snjl 7023114237Snjl Previous Release 7024114237Snjl Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7025114237Snjl Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7026114237Snjl Current Release: 7027114237Snjl Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7028114237Snjl Debug Version: 152.9K Code, 63.3K Data, 216.2K Total 7029114237Snjl 7030114237Snjl 7031114237Snjl2) Linux 7032114237Snjl 7033114237SnjlCleaned up EC driver. Exported an external EC read/write 7034114237Snjlinterface. By going through this, other drivers (most notably 7035114237Snjlsonypi) will be able to serialize access to the EC. 7036114237Snjl 7037114237Snjl 7038114237Snjl3) iASL Compiler/Disassembler 7039114237Snjl 7040114237SnjlImplemented support to optionally generate include files for both 7041114237SnjlASM and C (the -i switch). This simplifies BIOS development by 7042114237Snjlautomatically creating include files that contain external 7043114237Snjldeclarations for the symbols that are created within the 7044167802Sjkim 7045114237Snjl(optionally generated) ASM and C AML source files. 7046114237Snjl 7047114237Snjl 7048114237Snjl---------------------------------------- 7049107325Siwasaki15 November 2002. Summary of changes for version 20021115. 7050104470Siwasaki 7051107325Siwasaki1) ACPI CA Core Subsystem: 7052107325Siwasaki 7053114237SnjlFixed a memory leak problem where an error during resolution of 7054167802Sjkim 7055114237Snjlmethod arguments during a method invocation from another method 7056114237Snjlfailed to cleanup properly by deleting all successfully resolved 7057114237Snjlargument objects. 7058107325Siwasaki 7059114237SnjlFixed a problem where the target of the Index() operator was not 7060114237Snjlcorrectly constructed if the source object was a package. This 7061114237Snjlproblem has not been detected because the use of a target operand 7062114237Snjlwith Index() is very rare. 7063107325Siwasaki 7064107325SiwasakiFixed a problem with the Index() operator where an attempt was 7065107325Siwasakimade to delete the operand objects twice. 7066107325Siwasaki 7067107325SiwasakiFixed a problem where an attempt was made to delete an operand 7068114237Snjltwice during execution of the CondRefOf() operator if the target 7069114237Snjldid not exist. 7070107325Siwasaki 7071114237SnjlImplemented the first of perhaps several internal create object 7072193267Sjkimfunctions that create and initialize a specific object type. This 7073126372Snjlconsolidates duplicated code wherever the object is created, thus 7074126372Snjlshrinking the size of the subsystem. 7075107325Siwasaki 7076114237SnjlImplemented improved debug/error messages for errors that occur 7077114237Snjlduring nested method invocations. All executing method pathnames 7078193267Sjkimare displayed (with the error) as the call stack is unwound - thus 7079126372Snjlsimplifying debug. 7080107325Siwasaki 7081107325SiwasakiFixed a problem introduced in the 10/02 release that caused 7082114237Snjlpremature deletion of a buffer object if a buffer was used as an 7083114237SnjlASL operand where an integer operand is required (Thus causing an 7084193267Sjkimimplicit object conversion from Buffer to Integer.) The change in 7085126372Snjlthe 10/02 release was attempting to fix a memory leak (albeit 7086114237Snjlincorrectly.) 7087107325Siwasaki 7088193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7089126372Snjlbelow. These are the code and data sizes for the acpica.lib 7090126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7091126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7092126372Snjlversion of the code includes the debug output trace mechanism and 7093193267Sjkimhas a much larger code and data size. Note that these values will 7094126372Snjlvary depending on the efficiency of the compiler and the compiler 7095126372Snjloptions used during generation. 7096107325Siwasaki 7097107325Siwasaki Previous Release 7098107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7099107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7100107325Siwasaki Current Release: 7101107325Siwasaki Non-Debug Version: 71.3K Code, 9.0K Data, 80.3K Total 7102107325Siwasaki Debug Version: 152.7K Code, 63.2K Data, 215.5K Total 7103107325Siwasaki 7104107325Siwasaki 7105107325Siwasaki2) Linux 7106107325Siwasaki 7107114237SnjlChanged the implementation of the ACPI semaphores to use down() 7108114237Snjlinstead of down_interruptable(). It is important that the 7109114237Snjlexecution of ACPI control methods not be interrupted by signals. 7110114237SnjlMethods must run to completion, or the system may be left in an 7111114237Snjlunknown/unstable state. 7112107325Siwasaki 7113193267SjkimFixed a compilation error when CONFIG_SOFTWARE_SUSPEND is not set. 7114126372Snjl(Shawn Starr) 7115107325Siwasaki 7116107325Siwasaki 7117107325Siwasaki3) iASL Compiler/Disassembler 7118107325Siwasaki 7119107325Siwasaki 7120114237SnjlChanged the default location of output files. All output files 7121114237Snjlare now placed in the current directory by default instead of in 7122114237Snjlthe directory of the source file. This change may affect some 7123114237Snjlexisting makefiles, but it brings the behavior of the compiler in 7124114237Snjlline with other similar tools. The location of the output files 7125114237Snjlcan be overridden with the -p command line switch. 7126107325Siwasaki 7127114237Snjl 7128107325Siwasaki---------------------------------------- 7129107325Siwasaki11 November 2002. Summary of changes for version 20021111. 7130107325Siwasaki 7131107325Siwasaki 7132114237Snjl0) ACPI Specification 2.0B is released and is now available at: 7133114237Snjlhttp://www.acpi.info/index.html 7134107325Siwasaki 7135107325Siwasaki 7136107325Siwasaki1) ACPI CA Core Subsystem: 7137107325Siwasaki 7138107325SiwasakiImplemented support for the ACPI 2.0 SMBus Operation Regions. 7139114237SnjlThis includes the early detection and handoff of the request to 7140114237Snjlthe SMBus region handler (avoiding all of the complex field 7141107325Siwasakisupport code), and support for the bidirectional return packet 7142107325Siwasakifrom an SMBus write operation. This paves the way for the 7143107325Siwasakidevelopment of SMBus drivers in each host operating system. 7144107325Siwasaki 7145107325SiwasakiFixed a problem where the semaphore WAIT_FOREVER constant was 7146107325Siwasakidefined as 32 bits, but must be 16 bits according to the ACPI 7147107325Siwasakispecification. This had the side effect of causing ASL 7148107325SiwasakiMutex/Event timeouts even though the ASL code requested a wait 7149107325Siwasakiforever. Changed all internal references to the ACPI timeout 7150193267Sjkimparameter to 16 bits to prevent future problems. Changed the name 7151126372Snjlof WAIT_FOREVER to ACPI_WAIT_FOREVER. 7152107325Siwasaki 7153193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7154126372Snjlbelow. These are the code and data sizes for the acpica.lib 7155126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7156126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7157126372Snjlversion of the code includes the debug output trace mechanism and 7158193267Sjkimhas a much larger code and data size. Note that these values will 7159126372Snjlvary depending on the efficiency of the compiler and the compiler 7160126372Snjloptions used during generation. 7161107325Siwasaki 7162107325Siwasaki Previous Release 7163107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7164107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7165107325Siwasaki Current Release: 7166107325Siwasaki Non-Debug Version: 71.9K Code, 9.1K Data, 81.0K Total 7167107325Siwasaki Debug Version: 153.1K Code, 63.3K Data, 216.4K Total 7168107325Siwasaki 7169107325Siwasaki 7170107325Siwasaki2) Linux 7171107325Siwasaki 7172107325SiwasakiModule loading/unloading fixes (John Cagle) 7173107325Siwasaki 7174107325Siwasaki 7175107325Siwasaki3) iASL Compiler/Disassembler 7176107325Siwasaki 7177107325SiwasakiAdded support for the SMBBlockProcessCall keyword (ACPI 2.0) 7178107325Siwasaki 7179107325SiwasakiImplemented support for the disassembly of all SMBus protocol 7180107325Siwasakikeywords (SMBQuick, SMBWord, etc.) 7181107325Siwasaki 7182107325Siwasaki---------------------------------------- 7183107325Siwasaki01 November 2002. Summary of changes for version 20021101. 7184107325Siwasaki 7185107325Siwasaki 7186107325Siwasaki1) ACPI CA Core Subsystem: 7187107325Siwasaki 7188193267SjkimFixed a problem where platforms that have a GPE1 block but no GPE0 7189126372Snjlblock were not handled correctly. This resulted in a "GPE 7190114237Snjloverlap" error message. GPE0 is no longer required. 7191107325Siwasaki 7192107325SiwasakiRemoved code added in the previous release that inserted nodes 7193114237Snjlinto the namespace in alphabetical order. This caused some side- 7194114237Snjleffects on various machines. The root cause of the problem is 7195114237Snjlstill under investigation since in theory, the internal ordering 7196114237Snjlof the namespace nodes should not matter. 7197107325Siwasaki 7198107325Siwasaki 7199114237SnjlEnhanced error reporting for the case where a named object is not 7200114237Snjlfound during control method execution. The full ACPI namepath 7201114237Snjl(name reference) of the object that was not found is displayed in 7202114237Snjlthis case. 7203107325Siwasaki 7204193267SjkimNote: as a result of the overhaul of the namespace object types in 7205126372Snjlthe previous release, the namespace nodes for the predefined 7206114237Snjlscopes (_TZ, _PR, etc.) are now of the type ACPI_TYPE_LOCAL_SCOPE 7207114237Snjlinstead of ACPI_TYPE_ANY. This simplifies the namespace 7208114237Snjlmanagement code but may affect code that walks the namespace tree 7209114237Snjllooking for specific object types. 7210114237Snjl 7211193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7212126372Snjlbelow. These are the code and data sizes for the acpica.lib 7213126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7214126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7215126372Snjlversion of the code includes the debug output trace mechanism and 7216193267Sjkimhas a much larger code and data size. Note that these values will 7217126372Snjlvary depending on the efficiency of the compiler and the compiler 7218126372Snjloptions used during generation. 7219107325Siwasaki 7220107325Siwasaki Previous Release 7221107325Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7222107325Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7223107325Siwasaki Current Release: 7224107325Siwasaki Non-Debug Version: 71.4K Code, 9.0K Data, 80.4K Total 7225107325Siwasaki Debug Version: 152.3K Code, 63.0K Data, 215.3K Total 7226107325Siwasaki 7227107325Siwasaki 7228107325Siwasaki2) Linux 7229107325Siwasaki 7230107325SiwasakiFixed a problem introduced in the previous release where the 7231193267SjkimProcessor and Thermal objects were not recognized and installed in 7232193267Sjkim/proc. This was related to the scope type change described above. 7233107325Siwasaki 7234107325Siwasaki 7235107325Siwasaki3) iASL Compiler/Disassembler 7236107325Siwasaki 7237114237SnjlImplemented the -g option to get all of the required ACPI tables 7238114237Snjlfrom the registry and save them to files (Windows version of the 7239193267Sjkimcompiler only.) The required tables are the FADT, FACS, and DSDT. 7240107325Siwasaki 7241114237SnjlAdded ACPI table checksum validation during table disassembly in 7242114237Snjlorder to catch corrupted tables. 7243107325Siwasaki 7244107325Siwasaki 7245107325Siwasaki---------------------------------------- 7246107325Siwasaki22 October 2002. Summary of changes for version 20021022. 7247107325Siwasaki 7248107325Siwasaki1) ACPI CA Core Subsystem: 7249107325Siwasaki 7250114237SnjlImplemented a restriction on the Scope operator that the target 7251114237Snjlmust already exist in the namespace at the time the operator is 7252114237Snjlencountered (during table load or method execution). In other 7253114237Snjlwords, forward references are not allowed and Scope() cannot 7254114237Snjlcreate a new object. This changes the previous behavior where the 7255193267Sjkiminterpreter would create the name if not found. This new behavior 7256126372Snjlcorrectly enables the search-to-root algorithm during namespace 7257126372Snjllookup of the target name. Because of this upsearch, this fixes 7258126372Snjlthe known Compaq _SB_.OKEC problem and makes both the AML 7259126372Snjlinterpreter and iASL compiler compatible with other ACPI 7260114237Snjlimplementations. 7261107325Siwasaki 7262114237SnjlCompleted a major overhaul of the internal ACPI object types for 7263114237Snjlthe ACPI Namespace and the associated operand objects. Many of 7264114237Snjlthese types had become obsolete with the introduction of the two- 7265114237Snjlpass namespace load. This cleanup simplifies the code and makes 7266114237Snjlthe entire namespace load mechanism much clearer and easier to 7267114237Snjlunderstand. 7268107325Siwasaki 7269114237SnjlImproved debug output for tracking scope opening/closing to help 7270114237Snjldiagnose scoping issues. The old scope name as well as the new 7271114237Snjlscope name are displayed. Also improved error messages for 7272114237Snjlproblems with ASL Mutex objects and error messages for GPE 7273114237Snjlproblems. 7274107325Siwasaki 7275107325SiwasakiCleaned up the namespace dump code, removed obsolete code. 7276107325Siwasaki 7277114237SnjlAll string output (for all namespace/object dumps) now uses the 7278193267Sjkimcommon ACPI string output procedure which handles escapes properly 7279126372Snjland does not emit non-printable characters. 7280107325Siwasaki 7281107325SiwasakiFixed some issues with constants in the 64-bit version of the 7282107325Siwasakilocal C library (utclib.c) 7283107325Siwasaki 7284107325Siwasaki 7285107325Siwasaki2) Linux 7286107325Siwasaki 7287107325SiwasakiEC Driver: No longer attempts to acquire the Global Lock at 7288107325Siwasakiinterrupt level. 7289107325Siwasaki 7290107325Siwasaki 7291107325Siwasaki3) iASL Compiler/Disassembler 7292107325Siwasaki 7293193267SjkimImplemented ACPI 2.0B grammar change that disallows all Type 1 and 7294126372Snjl2 opcodes outside of a control method. This means that the 7295114237Snjl"executable" operators (versus the "namespace" operators) cannot 7296193267Sjkimbe used at the table level; they can only be used within a control 7297126372Snjlmethod. 7298107325Siwasaki 7299107325SiwasakiImplemented the restriction on the Scope() operator where the 7300107325Siwasakitarget must already exist in the namespace at the time the 7301114237Snjloperator is encountered (during ASL compilation). In other words, 7302193267Sjkimforward references are not allowed and Scope() cannot create a new 7303126372Snjlobject. This makes the iASL compiler compatible with other ACPI 7304193267Sjkimimplementations and makes the Scope() implementation adhere to the 7305126372SnjlACPI specification. 7306107325Siwasaki 7307193267SjkimFixed a problem where namepath optimization for the Alias operator 7308193267Sjkimwas optimizing the wrong path (of the two namepaths.) This caused 7309126372Snjla "Missing alias link" error message. 7310107325Siwasaki 7311114237SnjlFixed a problem where an "unknown reserved name" warning could be 7312114237Snjlincorrectly generated for names like "_SB" when the trailing 7313114237Snjlunderscore is not used in the original ASL. 7314107325Siwasaki 7315107325SiwasakiFixed a problem where the reserved name check did not handle 7316114237SnjlNamePaths with multiple NameSegs correctly. The first nameseg of 7317114237Snjlthe NamePath was examined instead of the last NameSeg. 7318107325Siwasaki 7319107325Siwasaki 7320107325Siwasaki---------------------------------------- 7321107325Siwasaki 7322104470Siwasaki02 October 2002. Summary of changes for this release. 7323104470Siwasaki 7324104470Siwasaki 7325104470Siwasaki1) ACPI CA Core Subsystem version 20021002: 7326104470Siwasaki 7327104470SiwasakiFixed a problem where a store/copy of a string to an existing 7328193267Sjkimstring did not always set the string length properly in the String 7329126372Snjlobject. 7330104470Siwasaki 7331104470SiwasakiFixed a reported problem with the ToString operator where the 7332193267Sjkimbehavior was identical to the ToHexString operator instead of just 7333126372Snjlsimply converting a raw buffer to a string data type. 7334104470Siwasaki 7335104470SiwasakiFixed a problem where CopyObject and the other "explicit" 7336193267Sjkimconversion operators were not updating the internal namespace node 7337126372Snjltype as part of the store operation. 7338104470Siwasaki 7339104470SiwasakiFixed a memory leak during implicit source operand conversion 7340193267Sjkimwhere the original object was not deleted if it was converted to a 7341126372Snjlnew object of a different type. 7342104470Siwasaki 7343193267SjkimEnhanced error messages for all problems associated with namespace 7344193267Sjkimlookups. Common procedure generates and prints the lookup name as 7345126372Snjlwell as the formatted status. 7346104470Siwasaki 7347104470SiwasakiCompleted implementation of a new design for the Alias support 7348193267Sjkimwithin the namespace. The existing design did not handle the case 7349193267Sjkimwhere a new object was assigned to one of the two names due to the 7350193267Sjkimuse of an explicit conversion operator, resulting in the two names 7351126372Snjlpointing to two different objects. The new design simply points 7352126372Snjlthe Alias name to the original name node - not to the object. 7353193267SjkimThis results in a level of indirection that must be handled in the 7354126372Snjlname resolution mechanism. 7355104470Siwasaki 7356193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7357126372Snjlbelow. These are the code and data sizes for the acpica.lib 7358126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7359126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7360126372Snjlversion of the code includes the debug output trace mechanism and 7361193267Sjkimhas a larger code and data size. Note that these values will vary 7362126372Snjldepending on the efficiency of the compiler and the compiler 7363126372Snjloptions used during generation. 7364104470Siwasaki 7365104470Siwasaki Previous Release 7366104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7367104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7368104470Siwasaki Current Release: 7369104470Siwasaki Non-Debug Version: 70.7K Code, 8.6K Data, 79.3K Total 7370104470Siwasaki Debug Version: 151.7K Code, 62.4K Data, 214.1K Total 7371104470Siwasaki 7372104470Siwasaki 7373104470Siwasaki2) Linux 7374104470Siwasaki 7375104470SiwasakiInitialize thermal driver's timer before it is used. (Knut 7376104470SiwasakiNeumann) 7377104470Siwasaki 7378104470SiwasakiAllow handling negative celsius values. (Kochi Takayoshi) 7379104470Siwasaki 7380114237SnjlFix thermal management and make trip points. R/W (Pavel Machek) 7381104470Siwasaki 7382104470SiwasakiFix /proc/acpi/sleep. (P. Christeas) 7383104470Siwasaki 7384104470SiwasakiIA64 fixes. (David Mosberger) 7385104470Siwasaki 7386104470SiwasakiFix reversed logic in blacklist code. (Sergio Monteiro Basto) 7387104470Siwasaki 7388104470SiwasakiReplace ACPI_DEBUG define with ACPI_DEBUG_OUTPUT. (Dominik 7389104470SiwasakiBrodowski) 7390104470Siwasaki 7391104470Siwasaki 7392104470Siwasaki3) iASL Compiler/Disassembler 7393104470Siwasaki 7394104470SiwasakiClarified some warning/error messages. 7395104470Siwasaki 7396104470Siwasaki 7397104470Siwasaki---------------------------------------- 7398104470Siwasaki18 September 2002. Summary of changes for this release. 7399104470Siwasaki 7400104470Siwasaki 7401104470Siwasaki1) ACPI CA Core Subsystem version 20020918: 7402104470Siwasaki 7403114237SnjlFixed a reported problem with reference chaining (via the Index() 7404193267Sjkimand RefOf() operators) in the ObjectType() and SizeOf() operators. 7405126372SnjlThe definition of these operators includes the dereferencing of 7406126372Snjlall chained references to return information on the base object. 7407104470Siwasaki 7408104470SiwasakiFixed a problem with stores to indexed package elements - the 7409104470Siwasakiexisting code would not complete the store if an "implicit 7410114237Snjlconversion" was not performed. In other words, if the existing 7411114237Snjlobject (package element) was to be replaced completely, the code 7412114237Snjldidn't handle this case. 7413104470Siwasaki 7414104470SiwasakiRelaxed typechecking on the ASL "Scope" operator to allow the 7415104470Siwasakitarget name to refer to an object of type Integer, String, or 7416104470SiwasakiBuffer, in addition to the scoping object types (Device, 7417104470Siwasakipredefined Scopes, Processor, PowerResource, and ThermalZone.) 7418114237SnjlThis allows existing AML code that has workarounds for a bug in 7419193267SjkimWindows to function properly. A warning is issued, however. This 7420126372Snjlaffects both the AML interpreter and the iASL compiler. Below is 7421126372Snjlan example of this type of ASL code: 7422104470Siwasaki 7423104470Siwasaki Name(DEB,0x00) 7424104470Siwasaki Scope(DEB) 7425104470Siwasaki { 7426104470Siwasaki 7427114237SnjlFixed some reported problems with 64-bit integer support in the 7428114237Snjllocal implementation of C library functions (clib.c) 7429104470Siwasaki 7430104470Siwasaki 7431104470Siwasaki2) Linux 7432104470Siwasaki 7433104470SiwasakiUse ACPI fix map region instead of IOAPIC region, since it is 7434104470Siwasakiundefined in non-SMP. 7435104470Siwasaki 7436114237SnjlEnsure that the SCI has the proper polarity and trigger, even on 7437114237Snjlsystems that do not have an interrupt override entry in the MADT. 7438104470Siwasaki 7439104470Siwasaki2.5 big driver reorganization (Pat Mochel) 7440104470Siwasaki 7441104470SiwasakiUse early table mapping code from acpitable.c (Andi Kleen) 7442104470Siwasaki 7443104470SiwasakiNew blacklist entries (Andi Kleen) 7444104470Siwasaki 7445114237SnjlBlacklist improvements. Split blacklist code out into a separate 7446114237Snjlfile. Move checking the blacklist to very early. Previously, we 7447114237Snjlwould use ACPI tables, and then halfway through init, check the 7448114237Snjlblacklist -- too late. Now, it's early enough to completely fall- 7449114237Snjlback to non-ACPI. 7450104470Siwasaki 7451104470Siwasaki 7452104470Siwasaki3) iASL Compiler/Disassembler version 20020918: 7453104470Siwasaki 7454114237SnjlFixed a problem where the typechecking code didn't know that an 7455114237Snjlalias could point to a method. In other words, aliases were not 7456114237Snjlbeing dereferenced during typechecking. 7457104470Siwasaki 7458104470Siwasaki 7459104470Siwasaki---------------------------------------- 7460104470Siwasaki29 August 2002. Summary of changes for this release. 7461104470Siwasaki 7462104470Siwasaki1) ACPI CA Core Subsystem Version 20020829: 7463104470Siwasaki 7464114237SnjlIf the target of a Scope() operator already exists, it must be an 7465114237Snjlobject type that actually opens a scope -- such as a Device, 7466193267SjkimMethod, Scope, etc. This is a fatal runtime error. Similar error 7467126372Snjlcheck has been added to the iASL compiler also. 7468104470Siwasaki 7469114237SnjlTightened up the namespace load to disallow multiple names in the 7470114237Snjlsame scope. This previously was allowed if both objects were of 7471114237Snjlthe same type. (i.e., a lookup was the same as entering a new 7472114237Snjlname). 7473104470Siwasaki 7474104470Siwasaki 7475104470Siwasaki2) Linux 7476104470Siwasaki 7477104470SiwasakiEnsure that the ACPI interrupt has the proper trigger and 7478104470Siwasakipolarity. 7479104470Siwasaki 7480104470Siwasakilocal_irq_disable is extraneous. (Matthew Wilcox) 7481104470Siwasaki 7482104470SiwasakiMake "acpi=off" actually do what it says, and not use the ACPI 7483104470Siwasakiinterpreter *or* the tables. 7484104470Siwasaki 7485193267SjkimAdded arch-neutral support for parsing SLIT and SRAT tables (Kochi 7486126372SnjlTakayoshi) 7487104470Siwasaki 7488104470Siwasaki 7489104470Siwasaki3) iASL Compiler/Disassembler Version 20020829: 7490104470Siwasaki 7491104470SiwasakiImplemented namepath optimization for name declarations. For 7492104470Siwasakiexample, a declaration like "Method (\_SB_.ABCD)" would get 7493104470Siwasakioptimized to "Method (ABCD)" if the declaration is within the 7494104470Siwasaki\_SB_ scope. This optimization is in addition to the named 7495104470Siwasakireference path optimization first released in the previous 7496114237Snjlversion. This would seem to complete all possible optimizations 7497114237Snjlfor namepaths within the ASL/AML. 7498104470Siwasaki 7499114237SnjlIf the target of a Scope() operator already exists, it must be an 7500114237Snjlobject type that actually opens a scope -- such as a Device, 7501114237SnjlMethod, Scope, etc. 7502104470Siwasaki 7503114237SnjlImplemented a check and warning for unreachable code in the same 7504114237Snjlblock below a Return() statement. 7505104470Siwasaki 7506114237SnjlFixed a problem where the listing file was not generated if the 7507114237Snjlcompiler aborted if the maximum error count was exceeded (200). 7508104470Siwasaki 7509193267SjkimFixed a problem where the typechecking of method return values was 7510126372Snjlbroken. This includes the check for a return value when the 7511114237Snjlmethod is invoked as a TermArg (a return value is expected.) 7512104470Siwasaki 7513104470SiwasakiFixed a reported problem where EOF conditions during a quoted 7514104470Siwasakistring or comment caused a fault. 7515104470Siwasaki 7516104470Siwasaki 7517104470Siwasaki---------------------------------------- 7518102550Siwasaki15 August 2002. Summary of changes for this release. 7519102550Siwasaki 7520102550Siwasaki1) ACPI CA Core Subsystem Version 20020815: 7521102550Siwasaki 7522114237SnjlFixed a reported problem where a Store to a method argument that 7523193267Sjkimcontains a reference did not perform the indirect store correctly. 7524126372SnjlThis problem was created during the conversion to the new 7525126372Snjlreference object model - the indirect store to a method argument 7526126372Snjlcode was not updated to reflect the new model. 7527102550Siwasaki 7528114237SnjlReworked the ACPI mode change code to better conform to ACPI 2.0, 7529193267Sjkimhandle corner cases, and improve code legibility (Kochi Takayoshi) 7530102550Siwasaki 7531102550SiwasakiFixed a problem with the pathname parsing for the carat (^) 7532114237Snjlprefix. The heavy use of the carat operator by the new namepath 7533193267Sjkimoptimization in the iASL compiler uncovered a problem with the AML 7534126372Snjlinterpreter handling of this prefix. In the case where one or 7535126372Snjlmore carats precede a single nameseg, the nameseg was treated as 7536126372Snjlstandalone and the search rule (to root) was inadvertently 7537114237Snjlapplied. This could cause both the iASL compiler and the 7538114237Snjlinterpreter to find the wrong object or to miss the error that 7539114237Snjlshould occur if the object does not exist at that exact pathname. 7540102550Siwasaki 7541114237SnjlFound and fixed the problem where the HP Pavilion DSDT would not 7542193267Sjkimload. This was a relatively minor tweak to the table loading code 7543126372Snjl(a problem caused by the unexpected encounter with a method 7544193267Sjkiminvocation not within a control method), but it does not solve the 7545126372Snjloverall issue of the execution of AML code at the table level. 7546126372SnjlThis investigation is still ongoing. 7547102550Siwasaki 7548193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7549126372Snjlbelow. These are the code and data sizes for the acpica.lib 7550126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7551126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7552126372Snjlversion of the code includes the debug output trace mechanism and 7553193267Sjkimhas a larger code and data size. Note that these values will vary 7554126372Snjldepending on the efficiency of the compiler and the compiler 7555126372Snjloptions used during generation. 7556102550Siwasaki 7557102550Siwasaki Previous Release 7558104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7559104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7560102550Siwasaki Current Release: 7561104470Siwasaki Non-Debug Version: 69.6K Code, 8.3K Data, 77.9K Total 7562104470Siwasaki Debug Version: 150.0K Code, 61.7K Data, 211.7K Total 7563102550Siwasaki 7564102550Siwasaki 7565102550Siwasaki2) Linux 7566102550Siwasaki 7567102550SiwasakiRemove redundant slab.h include (Brad Hards) 7568102550Siwasaki 7569102550SiwasakiFix several bugs in thermal.c (Herbert Nachtnebel) 7570102550Siwasaki 7571102550SiwasakiMake CONFIG_ACPI_BOOT work properly (Pavel Machek) 7572102550Siwasaki 7573104470SiwasakiChange acpi_system_suspend to use updated irq functions (Pavel 7574104470SiwasakiMachek) 7575102550Siwasaki 7576102550SiwasakiExport acpi_get_firmware_table (Matthew Wilcox) 7577102550Siwasaki 7578102550SiwasakiUse proper root proc entry for ACPI (Kochi Takayoshi) 7579102550Siwasaki 7580102550SiwasakiFix early-boot table parsing (Bjorn Helgaas) 7581102550Siwasaki 7582102550Siwasaki 7583102550Siwasaki3) iASL Compiler/Disassembler 7584102550Siwasaki 7585114237SnjlReworked the compiler options to make them more consistent and to 7586114237Snjluse two-letter options where appropriate. We were running out of 7587114237Snjlsensible letters. This may break some makefiles, so check the 7588114237Snjlcurrent options list by invoking the compiler with no parameters. 7589102550Siwasaki 7590102550SiwasakiCompleted the design and implementation of the ASL namepath 7591114237Snjloptimization option for the compiler. This option optimizes all 7592114237Snjlreferences to named objects to the shortest possible path. The 7593193267Sjkimfirst attempt tries to utilize a single nameseg (4 characters) and 7594126372Snjlthe "search-to-root" algorithm used by the interpreter. If that 7595126372Snjlcannot be used (because either the name is not in the search path 7596126372Snjlor there is a conflict with another object with the same name), 7597126372Snjlthe pathname is optimized using the carat prefix (usually a 7598126372Snjlshorter string than specifying the entire path from the root.) 7599102550Siwasaki 7600114237SnjlImplemented support to obtain the DSDT from the Windows registry 7601114237Snjl(when the disassembly option is specified with no input file). 7602114237SnjlAdded this code as the implementation for AcpiOsTableOverride in 7603114237Snjlthe Windows OSL. Migrated the 16-bit code (used in the AcpiDump 7604114237Snjlutility) to scan memory for the DSDT to the AcpiOsTableOverride 7605114237Snjlfunction in the DOS OSL to make the disassembler truly OS 7606114237Snjlindependent. 7607102550Siwasaki 7608114237SnjlImplemented a new option to disassemble and compile in one step. 7609114237SnjlWhen used without an input filename, this option will grab the 7610193267SjkimDSDT from the local machine, disassemble it, and compile it in one 7611126372Snjlstep. 7612102550Siwasaki 7613114237SnjlAdded a warning message for invalid escapes (a backslash followed 7614114237Snjlby any character other than the allowable escapes). This catches 7615114237Snjlthe quoted string error "\_SB_" (which should be "\\_SB_" ). 7616167802Sjkim 7617193267SjkimAlso, there are numerous instances in the ACPI specification where 7618126372Snjlthis error occurs. 7619102550Siwasaki 7620104470SiwasakiAdded a compiler option to disable all optimizations. This is 7621114237Snjlbasically the "compatibility mode" because by using this option, 7622114237Snjlthe AML code will come out exactly the same as other ASL 7623114237Snjlcompilers. 7624102550Siwasaki 7625114237SnjlAdded error messages for incorrectly ordered dependent resource 7626114237Snjlfunctions. This includes: missing EndDependentFn macro at end of 7627114237Snjldependent resource list, nested dependent function macros (both 7628114237Snjlstart and end), and missing StartDependentFn macro. These are 7629114237Snjlcommon errors that should be caught at compile time. 7630102550Siwasaki 7631114237SnjlImplemented _OSI support for the disassembler and compiler. _OSI 7632114237Snjlmust be included in the namespace for proper disassembly (because 7633114237Snjlthe disassembler must know the number of arguments.) 7634102550Siwasaki 7635104470SiwasakiAdded an "optimization" message type that is optional (off by 7636114237Snjldefault). This message is used for all optimizations - including 7637193267Sjkimconstant folding, integer optimization, and namepath optimization. 7638102550Siwasaki 7639102550Siwasaki---------------------------------------- 7640102550Siwasaki25 July 2002. Summary of changes for this release. 7641102550Siwasaki 7642102550Siwasaki 7643102550Siwasaki1) ACPI CA Core Subsystem Version 20020725: 7644102550Siwasaki 7645114237SnjlThe AML Disassembler has been enhanced to produce compilable ASL 7646193267Sjkimcode and has been integrated into the iASL compiler (see below) as 7647126372Snjlwell as the single-step disassembly for the AML debugger and the 7648126372Snjldisassembler for the AcpiDump utility. All ACPI 2.0A opcodes, 7649126372Snjlresource templates and macros are fully supported. The 7650114237Snjldisassembler has been tested on over 30 different AML files, 7651114237Snjlproducing identical AML when the resulting disassembled ASL file 7652114237Snjlis recompiled with the same ASL compiler. 7653102550Siwasaki 7654114237SnjlModified the Resource Manager to allow zero interrupts and zero 7655114237Snjldma channels during the GetCurrentResources call. This was 7656114237Snjlcausing problems on some platforms. 7657102550Siwasaki 7658114237SnjlAdded the AcpiOsRedirectOutput interface to the OSL to simplify 7659114237Snjloutput redirection for the AcpiOsPrintf and AcpiOsVprintf 7660114237Snjlinterfaces. 7661102550Siwasaki 7662193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7663126372Snjlbelow. These are the code and data sizes for the acpica.lib 7664126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7665126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7666126372Snjlversion of the code includes the debug output trace mechanism and 7667193267Sjkimhas a larger code and data size. Note that these values will vary 7668126372Snjldepending on the efficiency of the compiler and the compiler 7669126372Snjloptions used during generation. 7670102550Siwasaki 7671102550Siwasaki Previous Release 7672104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7673104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7674102550Siwasaki Current Release: 7675104470Siwasaki Non-Debug Version: 69.1K Code, 8.2K Data, 77.3K Total 7676104470Siwasaki Debug Version: 149.4K Code, 61.6K Data, 211.0K Total 7677102550Siwasaki 7678102550Siwasaki 7679102550Siwasaki2) Linux 7680102550Siwasaki 7681102550SiwasakiFixed a panic in the EC driver (Dominik Brodowski) 7682102550Siwasaki 7683114237SnjlImplemented checksum of the R/XSDT itself during Linux table scan 7684114237Snjl(Richard Schaal) 7685102550Siwasaki 7686102550Siwasaki 7687102550Siwasaki3) iASL compiler 7688102550Siwasaki 7689114237SnjlThe AML disassembler is integrated into the compiler. The "-d" 7690114237Snjloption invokes the disassembler to completely disassemble an 7691114237Snjlinput AML file, producing as output a text ASL file with the 7692114237Snjlextension ".dsl" (to avoid name collisions with existing .asl 7693114237Snjlsource files.) A future enhancement will allow the disassembler 7694114237Snjlto obtain the BIOS DSDT from the registry under Windows. 7695102550Siwasaki 7696102550SiwasakiFixed a problem with the VendorShort and VendorLong resource 7697102550Siwasakidescriptors where an invalid AML sequence was created. 7698102550Siwasaki 7699114237SnjlImplemented a fix for BufferData term in the ASL parser. It was 7700114237Snjlinadvertently defined twice, allowing invalid syntax to pass and 7701114237Snjlcausing reduction conflicts. 7702102550Siwasaki 7703104470SiwasakiFixed a problem where the Ones opcode could get converted to a 7704193267Sjkimvalue of zero if "Ones" was used where a byte, word or dword value 7705126372Snjlwas expected. The 64-bit value is now truncated to the correct 7706126372Snjlsize with the correct value. 7707102550Siwasaki 7708102550Siwasaki 7709167802Sjkim 7710102550Siwasaki---------------------------------------- 7711102550Siwasaki02 July 2002. Summary of changes for this release. 7712102550Siwasaki 7713102550Siwasaki 7714102550Siwasaki1) ACPI CA Core Subsystem Version 20020702: 7715102550Siwasaki 7716114237SnjlThe Table Manager code has been restructured to add several new 7717114237Snjlfeatures. Tables that are not required by the core subsystem 7718114237Snjl(other than the FADT, DSDT, FACS, PSDTs, etc.) are no longer 7719193267Sjkimvalidated in any way and are returned from AcpiGetFirmwareTable if 7720126372Snjlrequested. The AcpiOsTableOverride interface is now called for 7721126372Snjleach table that is loaded by the subsystem in order to allow the 7722126372Snjlhost to override any table it chooses. Previously, only the DSDT 7723126372Snjlcould be overridden. Added one new files, tbrsdt.c and 7724114237Snjltbgetall.c. 7725102550Siwasaki 7726193267SjkimFixed a problem with the conversion of internal package objects to 7727126372Snjlexternal objects (when a package is returned from a control 7728114237Snjlmethod.) The return buffer length was set to zero instead of the 7729114237Snjlproper length of the package object. 7730102550Siwasaki 7731104470SiwasakiFixed a reported problem with the use of the RefOf and DeRefOf 7732114237Snjloperators when passing reference arguments to control methods. A 7733114237Snjlnew type of Reference object is used internally for references 7734114237Snjlproduced by the RefOf operator. 7735102550Siwasaki 7736193267SjkimAdded additional error messages in the Resource Manager to explain 7737126372SnjlAE_BAD_DATA errors when they occur during resource parsing. 7738102550Siwasaki 7739104470SiwasakiSplit the AcpiEnableSubsystem into two primitives to enable a 7740193267Sjkimfiner granularity initialization sequence. These two calls should 7741126372Snjlbe called in this order: AcpiEnableSubsystem (flags), 7742114237SnjlAcpiInitializeObjects (flags). The flags parameter remains the 7743114237Snjlsame. 7744102550Siwasaki 7745102550Siwasaki 7746102550Siwasaki2) Linux 7747102550Siwasaki 7748114237SnjlUpdated the ACPI utilities module to understand the new style of 7749193267Sjkimfully resolved package objects that are now returned from the core 7750126372Snjlsubsystem. This eliminates errors of the form: 7751102550Siwasaki 7752102550Siwasaki ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PPB_._PRT] 7753102550Siwasaki acpi_utils-0430 [145] acpi_evaluate_reference: 7754102550Siwasaki Invalid element in package (not a device reference) 7755102550Siwasaki 7756102550SiwasakiThe method evaluation utility uses the new buffer allocation 7757102550Siwasakischeme instead of calling AcpiEvaluate Object twice. 7758102550Siwasaki 7759102550SiwasakiAdded support for ECDT. This allows the use of the Embedded 7760167802Sjkim 7761114237SnjlController before the namespace has been fully initialized, which 7762114237Snjlis necessary for ACPI 2.0 support, and for some laptops to 7763114237Snjlinitialize properly. (Laptops using ECDT are still rare, so only 7764114237Snjllimited testing was performed of the added functionality.) 7765102550Siwasaki 7766102550SiwasakiFixed memory leaks in the EC driver. 7767102550Siwasaki 7768102550SiwasakiEliminated a brittle code structure in acpi_bus_init(). 7769102550Siwasaki 7770114237SnjlEliminated the acpi_evaluate() helper function in utils.c. It is 7771114237Snjlno longer needed since acpi_evaluate_object can optionally 7772104470Siwasakiallocate memory for the return object. 7773102550Siwasaki 7774193267SjkimImplemented fix for keyboard hang when getting battery readings on 7775126372Snjlsome systems (Stephen White) 7776102550Siwasaki 7777102550SiwasakiPCI IRQ routing update (Dominik Brodowski) 7778102550Siwasaki 7779114237SnjlFix an ifdef to allow compilation on UP with LAPIC but no IOAPIC 7780114237Snjlsupport 7781102550Siwasaki 7782102550Siwasaki---------------------------------------- 7783102550Siwasaki11 June 2002. Summary of changes for this release. 7784102550Siwasaki 7785102550Siwasaki 7786102550Siwasaki1) ACPI CA Core Subsystem Version 20020611: 7787102550Siwasaki 7788104470SiwasakiFixed a reported problem where constants such as Zero and One 7789114237Snjlappearing within _PRT packages were not handled correctly within 7790114237Snjlthe resource manager code. Originally reported against the ASL 7791114237Snjlcompiler because the code generator now optimizes integers to 7792193267Sjkimtheir minimal AML representation (i.e. AML constants if possible.) 7793126372SnjlThe _PRT code now handles all AML constant opcodes correctly 7794126372Snjl(Zero, One, Ones, Revision). 7795102550Siwasaki 7796102550SiwasakiFixed a problem with the Concatenate operator in the AML 7797193267Sjkiminterpreter where a buffer result object was incorrectly marked as 7798126372Snjlnot fully evaluated, causing a run-time error of AE_AML_INTERNAL. 7799102550Siwasaki 7800104470SiwasakiAll package sub-objects are now fully resolved before they are 7801114237Snjlreturned from the external ACPI interfaces. This means that name 7802114237Snjlstrings are resolved to object handles, and constant operators 7803114237Snjl(Zero, One, Ones, Revision) are resolved to Integers. 7804102550Siwasaki 7805102550SiwasakiImplemented immediate resolution of the AML Constant opcodes 7806104470Siwasaki(Zero, One, Ones, Revision) to Integer objects upon detection 7807104470Siwasakiwithin the AML stream. This has simplified and reduced the 7808104470Siwasakigenerated code size of the subsystem by eliminating about 10 7809104470Siwasakiswitch statements for these constants (which previously were 7810193267Sjkimcontained in Reference objects.) The complicating issues are that 7811126372Snjlthe Zero opcode is used as a "placeholder" for unspecified 7812193267Sjkimoptional target operands and stores to constants are defined to be 7813126372Snjlno-ops. 7814102550Siwasaki 7815193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7816126372Snjlbelow. These are the code and data sizes for the acpica.lib 7817114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7818114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 7819114237Snjlversion of the code includes the debug output trace mechanism and 7820193267Sjkimhas a larger code and data size. Note that these values will vary 7821126372Snjldepending on the efficiency of the compiler and the compiler 7822114237Snjloptions used during generation. 7823102550Siwasaki 7824102550Siwasaki Previous Release 7825104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7826104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7827102550Siwasaki Current Release: 7828104470Siwasaki Non-Debug Version: 68.7K Code, 7.4K Data, 76.1K Total 7829104470Siwasaki Debug Version: 142.9K Code, 58.7K Data, 201.6K Total 7830102550Siwasaki 7831102550Siwasaki 7832102550Siwasaki2) Linux 7833102550Siwasaki 7834167802Sjkim 7835104470SiwasakiAdded preliminary support for obtaining _TRA data for PCI root 7836104470Siwasakibridges (Bjorn Helgaas). 7837102550Siwasaki 7838102550Siwasaki 7839102550Siwasaki3) iASL Compiler Version X2046: 7840102550Siwasaki 7841193267SjkimFixed a problem where the "_DDN" reserved name was defined to be a 7842126372Snjlcontrol method with one argument. There are no arguments, and 7843114237Snjl_DDN does not have to be a control method. 7844102550Siwasaki 7845114237SnjlFixed a problem with the Linux version of the compiler where the 7846114237Snjlsource lines printed with error messages were the wrong lines. 7847114237SnjlThis turned out to be the "LF versus CR/LF" difference between 7848114237SnjlWindows and Unix. This appears to be the longstanding issue 7849114237Snjlconcerning listing output and error messages. 7850102550Siwasaki 7851114237SnjlFixed a problem with the Linux version of compiler where opcode 7852114237Snjlnames within error messages were wrong. This was caused by a 7853114237Snjlslight difference in the output of the Flex tool on Linux versus 7854114237SnjlWindows. 7855102550Siwasaki 7856193267SjkimFixed a problem with the Linux compiler where the hex output files 7857126372Snjlcontained some garbage data caused by an internal buffer overrun. 7858102550Siwasaki 7859102550Siwasaki 7860102550Siwasaki---------------------------------------- 7861102550Siwasaki17 May 2002. Summary of changes for this release. 7862102550Siwasaki 7863102550Siwasaki 7864102550Siwasaki1) ACPI CA Core Subsystem Version 20020517: 7865102550Siwasaki 7866102550SiwasakiImplemented a workaround to an BIOS bug discovered on the HP 7867104470SiwasakiOmniBook where the FADT revision number and the table size are 7868193267Sjkiminconsistent (ACPI 2.0 revision vs. ACPI 1.0 table size). The new 7869126372Snjlbehavior is to fallback to using only the ACPI 1.0 fields of the 7870126372SnjlFADT if the table is too small to be a ACPI 2.0 table as claimed 7871126372Snjlby the revision number. Although this is a BIOS bug, this is a 7872126372Snjlcase where the workaround is simple enough and with no side 7873126372Snjleffects, so it seemed prudent to add it. A warning message is 7874126372Snjlissued, however. 7875102550Siwasaki 7876193267SjkimImplemented minimum size checks for the fixed-length ACPI tables - 7877126372Snjl- the FADT and FACS, as well as consistency checks between the 7878114237Snjlrevision number and the table size. 7879102550Siwasaki 7880114237SnjlFixed a reported problem in the table override support where the 7881114237Snjlnew table pointer was incorrectly treated as a physical address 7882114237Snjlinstead of a logical address. 7883102550Siwasaki 7884114237SnjlEliminated the use of the AE_AML_ERROR exception and replaced it 7885114237Snjlwith more descriptive codes. 7886102550Siwasaki 7887193267SjkimFixed a problem where an exception would occur if an ASL Field was 7888126372Snjldefined with no named Field Units underneath it (used by some 7889114237Snjlindex fields). 7890102550Siwasaki 7891193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7892126372Snjlbelow. These are the code and data sizes for the acpica.lib 7893126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7894126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7895126372Snjlversion of the code includes the debug output trace mechanism and 7896193267Sjkimhas a larger code and data size. Note that these values will vary 7897126372Snjldepending on the efficiency of the compiler and the compiler 7898126372Snjloptions used during generation. 7899102550Siwasaki 7900102550Siwasaki Previous Release 7901104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 7902104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 7903102550Siwasaki Current Release: 7904104470Siwasaki Non-Debug Version: 69.3K Code, 7.4K Data, 76.7K Total 7905104470Siwasaki Debug Version: 143.8K Code, 58.8K Data, 202.6K Total 7906102550Siwasaki 7907102550Siwasaki 7908102550Siwasaki 7909102550Siwasaki2) Linux 7910102550Siwasaki 7911114237SnjlMuch work done on ACPI init (MADT and PCI IRQ routing support). 7912114237Snjl(Paul D. and Dominik Brodowski) 7913102550Siwasaki 7914102550SiwasakiFix PCI IRQ-related panic on boot (Sam Revitch) 7915102550Siwasaki 7916102550SiwasakiSet BM_ARB_DIS when entering a sleep state (Ducrot Bruno) 7917102550Siwasaki 7918102550SiwasakiFix "MHz" typo (Dominik Brodowski) 7919102550Siwasaki 7920102550SiwasakiFix RTC year 2000 issue (Dominik Brodowski) 7921102550Siwasaki 7922102550SiwasakiPreclude multiple button proc entries (Eric Brunet) 7923102550Siwasaki 7924102550SiwasakiMoved arch-specific code out of include/platform/aclinux.h 7925102550Siwasaki 7926102550Siwasaki3) iASL Compiler Version X2044: 7927102550Siwasaki 7928193267SjkimImplemented error checking for the string used in the EISAID macro 7929193267Sjkim(Usually used in the definition of the _HID object.) The code now 7930126372Snjlstrictly enforces the PnP format - exactly 7 characters, 3 7931126372Snjluppercase letters and 4 hex digits. 7932102550Siwasaki 7933102550SiwasakiIf a raw string is used in the definition of the _HID object 7934102550Siwasaki(instead of the EISAID macro), the string must contain all 7935114237Snjlalphanumeric characters (e.g., "*PNP0011" is not allowed because 7936114237Snjlof the asterisk.) 7937102550Siwasaki 7938114237SnjlImplemented checking for invalid use of ACPI reserved names for 7939114237Snjlmost of the name creation operators (Name, Device, Event, Mutex, 7940114237SnjlOperationRegion, PowerResource, Processor, and ThermalZone.) 7941114237SnjlPreviously, this check was only performed for control methods. 7942102550Siwasaki 7943114237SnjlImplemented an additional check on the Name operator to emit an 7944114237Snjlerror if a reserved name that must be implemented in ASL as a 7945114237Snjlcontrol method is used. We know that a reserved name must be a 7946114237Snjlmethod if it is defined with input arguments. 7947102550Siwasaki 7948193267SjkimThe warning emitted when a namespace object reference is not found 7949126372Snjlduring the cross reference phase has been changed into an error. 7950193267SjkimThe "External" directive should be used for names defined in other 7951126372Snjlmodules. 7952102550Siwasaki 7953102550Siwasaki 7954102550Siwasaki4) Tools and Utilities 7955102550Siwasaki 7956114237SnjlThe 16-bit tools (adump16 and aexec16) have been regenerated and 7957114237Snjltested. 7958102550Siwasaki 7959193267SjkimFixed a problem with the output of both acpidump and adump16 where 7960126372Snjlthe indentation of closing parentheses and brackets was not 7961167802Sjkim 7962114237Snjlaligned properly with the parent block. 7963102550Siwasaki 7964102550Siwasaki 7965102550Siwasaki---------------------------------------- 7966102550Siwasaki03 May 2002. Summary of changes for this release. 7967102550Siwasaki 7968102550Siwasaki 7969102550Siwasaki1) ACPI CA Core Subsystem Version 20020503: 7970102550Siwasaki 7971114237SnjlAdded support a new OSL interface that allows the host operating 7972167802Sjkim 7973114237Snjlsystem software to override the DSDT found in the firmware - 7974193267SjkimAcpiOsTableOverride. With this interface, the OSL can examine the 7975126372Snjlversion of the firmware DSDT and replace it with a different one 7976126372Snjlif desired. 7977102550Siwasaki 7978114237SnjlAdded new external interfaces for accessing ACPI registers from 7979114237Snjldevice drivers and other system software - AcpiGetRegister and 7980114237SnjlAcpiSetRegister. This was simply an externalization of the 7981114237Snjlexisting AcpiHwBitRegister interfaces. 7982102550Siwasaki 7983104470SiwasakiFixed a regression introduced in the previous build where the 7984104470SiwasakiASL/AML CreateField operator always returned an error, 7985102550Siwasaki"destination must be a NS Node". 7986102550Siwasaki 7987114237SnjlExtended the maximum time (before failure) to successfully enable 7988114237SnjlACPI mode to 3 seconds. 7989102550Siwasaki 7990193267SjkimCode and Data Size: Current core subsystem library sizes are shown 7991126372Snjlbelow. These are the code and data sizes for the acpica.lib 7992126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 7993126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 7994126372Snjlversion of the code includes the debug output trace mechanism and 7995193267Sjkimhas a larger code and data size. Note that these values will vary 7996126372Snjldepending on the efficiency of the compiler and the compiler 7997126372Snjloptions used during generation. 7998102550Siwasaki 7999102550Siwasaki Previous Release 8000104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8001104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8002102550Siwasaki Current Release: 8003104470Siwasaki Non-Debug Version: 68.8K Code, 7.1K Data, 75.9K Total 8004104470Siwasaki Debug Version: 142.9K Code, 58.4K Data, 201.3K Total 8005102550Siwasaki 8006102550Siwasaki 8007102550Siwasaki2) Linux 8008102550Siwasaki 8009104470SiwasakiEnhanced ACPI init code for SMP. We are now fully MPS and $PIR- 8010193267Sjkimfree. While 3 out of 4 of our in-house systems work fine, the last 8011126372Snjlone still hangs when testing the LAPIC timer. 8012102550Siwasaki 8013114237SnjlRenamed many files in 2.5 kernel release to omit "acpi_" from the 8014114237Snjlname. 8015102550Siwasaki 8016102550SiwasakiAdded warning on boot for Presario 711FR. 8017102550Siwasaki 8018102550SiwasakiSleep improvements (Pavel Machek) 8019102550Siwasaki 8020102550SiwasakiACPI can now be built without CONFIG_PCI enabled. 8021102550Siwasaki 8022102550SiwasakiIA64: Fixed memory map functions (JI Lee) 8023102550Siwasaki 8024102550Siwasaki 8025102550Siwasaki3) iASL Compiler Version X2043: 8026102550Siwasaki 8027114237SnjlAdded support to allow the compiler to be integrated into the MS 8028114237SnjlVC++ development environment for one-button compilation of single 8029114237Snjlfiles or entire projects -- with error-to-source-line mapping. 8030102550Siwasaki 8031104470SiwasakiImplemented support for compile-time constant folding for the 8032104470SiwasakiType3, Type4, and Type5 opcodes first defined in the ACPI 2.0 8033104470Siwasakispecification. This allows the ASL writer to use expressions 8034104470Siwasakiinstead of Integer/Buffer/String constants in terms that must 8035114237Snjlevaluate to constants at compile time and will also simplify the 8036114237Snjlemitted AML in any such sub-expressions that can be folded 8037104470Siwasaki(evaluated at compile-time.) This increases the size of the 8038104470Siwasakicompiler significantly because a portion of the ACPI CA AML 8039104470Siwasakiinterpreter is included within the compiler in order to pre- 8040104470Siwasakievaluate constant expressions. 8041102550Siwasaki 8042114237Snjl 8043102550SiwasakiFixed a problem with the "Unicode" ASL macro that caused the 8044114237Snjlcompiler to fault. (This macro is used in conjunction with the 8045114237Snjl_STR reserved name.) 8046102550Siwasaki 8047114237SnjlImplemented an AML opcode optimization to use the Zero, One, and 8048114237SnjlOnes opcodes where possible to further reduce the size of integer 8049114237Snjlconstants and thus reduce the overall size of the generated AML 8050114237Snjlcode. 8051102550Siwasaki 8052193267SjkimImplemented error checking for new reserved terms for ACPI version 8053126372Snjl2.0A. 8054102550Siwasaki 8055104470SiwasakiImplemented the -qr option to display the current list of ACPI 8056104470Siwasakireserved names known to the compiler. 8057102550Siwasaki 8058104470SiwasakiImplemented the -qc option to display the current list of ASL 8059104470Siwasakioperators that are allowed within constant expressions and can 8060193267Sjkimtherefore be folded at compile time if the operands are constants. 8061102550Siwasaki 8062102550Siwasaki 8063102550Siwasaki4) Documentation 8064102550Siwasaki 8065193267SjkimUpdated the Programmer's Reference for new interfaces, data types, 8066126372Snjland memory allocation model options. 8067102550Siwasaki 8068114237SnjlUpdated the iASL Compiler User Reference to apply new format and 8069114237Snjladd information about new features and options. 8070102550Siwasaki 8071102550Siwasaki---------------------------------------- 8072102550Siwasaki19 April 2002. Summary of changes for this release. 8073102550Siwasaki 8074102550Siwasaki1) ACPI CA Core Subsystem Version 20020419: 8075102550Siwasaki 8076114237SnjlThe source code base for the Core Subsystem has been completely 8077114237Snjlcleaned with PC-lint (FlexLint) for both 32-bit and 64-bit 8078114237Snjlversions. The Lint option files used are included in the 8079114237Snjl/acpi/generate/lint directory. 8080102550Siwasaki 8081102550SiwasakiImplemented enhanced status/error checking across the entire 8082114237SnjlHardware manager subsystem. Any hardware errors (reported from 8083114237Snjlthe OSL) are now bubbled up and will abort a running control 8084114237Snjlmethod. 8085102550Siwasaki 8086167802Sjkim 8087114237SnjlFixed a problem where the per-ACPI-table integer width (32 or 64) 8088114237Snjlwas stored only with control method nodes, causing a fault when 8089114237Snjlnon-control method code was executed during table loading. The 8090114237Snjlsolution implemented uses a global variable to indicate table 8091114237Snjlwidth across the entire ACPI subsystem. Therefore, ACPI CA does 8092114237Snjlnot support mixed integer widths across different ACPI tables 8093114237Snjl(DSDT, SSDT). 8094102550Siwasaki 8095114237SnjlFixed a problem where NULL extended fields (X fields) in an ACPI 8096114237Snjl2.0 ACPI FADT caused the table load to fail. Although the 8097114237Snjlexisting ACPI specification is a bit fuzzy on this topic, the new 8098114237Snjlbehavior is to fall back on a ACPI 1.0 field if the corresponding 8099193267SjkimACPI 2.0 X field is zero (even though the table revision indicates 8100193267Sjkima full ACPI 2.0 table.) The ACPI specification will be updated to 8101126372Snjlclarify this issue. 8102102550Siwasaki 8103104470SiwasakiFixed a problem with the SystemMemory operation region handler 8104104470Siwasakiwhere memory was always accessed byte-wise even if the AML- 8105104470Siwasakispecified access width was larger than a byte. This caused 8106104470Siwasakiproblems on systems with memory-mapped I/O. Memory is now 8107193267Sjkimaccessed with the width specified. On systems that do not support 8108193267Sjkimnon-aligned transfers, a check is made to guarantee proper address 8109126372Snjlalignment before proceeding in order to avoid an AML-caused 8110126372Snjlalignment fault within the kernel. 8111102550Siwasaki 8112102550Siwasaki 8113114237SnjlFixed a problem with the ExtendedIrq resource where only one byte 8114114237Snjlof the 4-byte Irq field was extracted. 8115102550Siwasaki 8116114237SnjlFixed the AcpiExDigitsNeeded() procedure to support _UID. This 8117114237Snjlfunction was out of date and required a rewrite. 8118114237Snjl 8119193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8120126372Snjlbelow. These are the code and data sizes for the acpica.lib 8121126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8122126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8123126372Snjlversion of the code includes the debug output trace mechanism and 8124193267Sjkimhas a larger code and data size. Note that these values will vary 8125126372Snjldepending on the efficiency of the compiler and the compiler 8126126372Snjloptions used during generation. 8127102550Siwasaki 8128102550Siwasaki Previous Release 8129104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8130104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8131102550Siwasaki Current Release: 8132104470Siwasaki Non-Debug Version: 68.5K Code, 7.0K Data, 75.5K Total 8133104470Siwasaki Debug Version: 142.4K Code, 58.3K Data, 200.7K Total 8134102550Siwasaki 8135102550Siwasaki 8136102550Siwasaki2) Linux 8137102550Siwasaki 8138102550SiwasakiPCI IRQ routing fixes (Dominik Brodowski) 8139102550Siwasaki 8140102550Siwasaki 8141102550Siwasaki3) iASL Compiler Version X2042: 8142102550Siwasaki 8143104470SiwasakiImplemented an additional compile-time error check for a field 8144104470Siwasakiunit whose size + minimum access width would cause a run-time 8145114237Snjlaccess beyond the end-of-region. Previously, only the field size 8146114237Snjlitself was checked. 8147102550Siwasaki 8148104470SiwasakiThe Core subsystem and iASL compiler now share a common parse 8149104470Siwasakiobject in preparation for compile-time evaluation of the type 8150104470Siwasaki3/4/5 ASL operators. 8151102550Siwasaki 8152102550Siwasaki 8153102550Siwasaki---------------------------------------- 8154102550SiwasakiSummary of changes for this release: 03_29_02 8155102550Siwasaki 8156102550Siwasaki1) ACPI CA Core Subsystem Version 20020329: 8157102550Siwasaki 8158104470SiwasakiImplemented support for late evaluation of TermArg operands to 8159193267SjkimBuffer and Package objects. This allows complex expressions to be 8160126372Snjlused in the declarations of these object types. 8161102550Siwasaki 8162193267SjkimFixed an ACPI 1.0 compatibility issue when reading Fields. In ACPI 8163126372Snjl1.0, if the field was larger than 32 bits, it was returned as a 8164126372Snjlbuffer - otherwise it was returned as an integer. In ACPI 2.0, 8165193267Sjkimthe field is returned as a buffer only if the field is larger than 8166126372Snjl64 bits. The TableRevision is now considered when making this 8167126372Snjlconversion to avoid incompatibility with existing ASL code. 8168102550Siwasaki 8169104470SiwasakiImplemented logical addressing for AcpiOsGetRootPointer. This 8170114237Snjlallows an RSDP with either a logical or physical address. With 8171114237Snjlthis support, the host OS can now override all ACPI tables with 8172114237Snjlone logical RSDP. Includes implementation of "typed" pointer 8173114237Snjlsupport to allow a common data type for both physical and logical 8174114237Snjlpointers internally. This required a change to the 8175114237SnjlAcpiOsGetRootPointer interface. 8176102550Siwasaki 8177193267SjkimImplemented the use of ACPI 2.0 Generic Address Structures for all 8178193267SjkimGPE, Fixed Event, and PM Timer I/O. This allows the use of memory 8179126372Snjlmapped I/O for these ACPI features. 8180102550Siwasaki 8181102550SiwasakiInitialization now ignores not only non-required tables (All 8182114237Snjltables other than the FADT, FACS, DSDT, and SSDTs), but also does 8183114237Snjlnot validate the table headers of unrecognized tables. 8184102550Siwasaki 8185102550SiwasakiFixed a problem where a notify handler could only be 8186102550Siwasakiinstalled/removed on an object of type Device. All "notify" 8187167802Sjkim 8188102550Siwasakiobjects are now supported -- Devices, Processor, Power, and 8189102550SiwasakiThermal. 8190102550Siwasaki 8191114237SnjlRemoved most verbosity from the ACPI_DB_INFO debug level. Only 8192193267Sjkimcritical information is returned when this debug level is enabled. 8193102550Siwasaki 8194193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8195126372Snjlbelow. These are the code and data sizes for the acpica.lib 8196126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8197126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8198126372Snjlversion of the code includes the debug output trace mechanism and 8199193267Sjkimhas a larger code and data size. Note that these values will vary 8200126372Snjldepending on the efficiency of the compiler and the compiler 8201126372Snjloptions used during generation. 8202102550Siwasaki 8203102550Siwasaki Previous Release 8204104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8205104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8206102550Siwasaki Current Release: 8207104470Siwasaki Non-Debug Version: 66.6K Code, 6.5K Data, 73.1K Total 8208104470Siwasaki Debug Version: 139.8K Code, 57.4K Data, 197.2K Total 8209102550Siwasaki 8210102550Siwasaki 8211102550Siwasaki2) Linux: 8212102550Siwasaki 8213114237SnjlThe processor driver (acpi_processor.c) now fully supports ACPI 8214114237Snjl2.0-based processor performance control (e.g. Intel(R) 8215114237SnjlSpeedStep(TM) technology) Note that older laptops that only have 8216114237Snjlthe Intel "applet" interface are not supported through this. The 8217114237Snjl'limit' and 'performance' interface (/proc) are fully functional. 8218114237Snjl[Note that basic policy for controlling performance state 8219114237Snjltransitions will be included in the next version of ospmd.] The 8220114237Snjlidle handler was modified to more aggressively use C2, and PIIX4 8221114237Snjlerrata handling underwent a complete overhaul (big thanks to 8222114237SnjlDominik Brodowski). 8223102550Siwasaki 8224114237SnjlAdded support for ACPI-PCI device binding (acpi_pci_root.c). _ADR- 8225114237Snjlbased devices in the ACPI namespace are now dynamically bound 8226114237Snjl(associated) with their PCI counterparts (e.g. PCI1->01:00.0). 8227114237SnjlThis allows, among other things, ACPI to resolve bus numbers for 8228114237Snjlsubordinate PCI bridges. 8229102550Siwasaki 8230104470SiwasakiEnhanced PCI IRQ routing to get the proper bus number for _PRT 8231104470Siwasakientries defined underneath PCI bridges. 8232102550Siwasaki 8233104470SiwasakiAdded IBM 600E to bad bios list due to invalid _ADR value for 8234104470SiwasakiPIIX4 PCI-ISA bridge, resulting in improper PCI IRQ routing. 8235102550Siwasaki 8236114237SnjlIn the process of adding full MADT support (e.g. IOAPIC) for IA32 8237114237Snjl(acpi.c, mpparse.c) -- stay tuned. 8238102550Siwasaki 8239102550SiwasakiAdded back visual differentiation between fixed-feature and 8240114237Snjlcontrol-method buttons in dmesg. Buttons are also subtyped (e.g. 8241114237Snjlbutton/power/PWRF) to simplify button identification. 8242102550Siwasaki 8243114237SnjlWe no longer use -Wno-unused when compiling debug. Please ignore 8244114237Snjlany "_THIS_MODULE defined but not used" messages. 8245102550Siwasaki 8246102550SiwasakiCan now shut down the system using "magic sysrq" key. 8247102550Siwasaki 8248102550Siwasaki 8249102550Siwasaki3) iASL Compiler version 2041: 8250102550Siwasaki 8251104470SiwasakiFixed a problem where conversion errors for hex/octal/decimal 8252104470Siwasakiconstants were not reported. 8253102550Siwasaki 8254193267SjkimImplemented a fix for the General Register template Address field. 8255126372SnjlThis field was 8 bits when it should be 64. 8256102550Siwasaki 8257193267SjkimFixed a problem where errors/warnings were no longer being emitted 8258126372Snjlwithin the listing output file. 8259102550Siwasaki 8260114237SnjlImplemented the ACPI 2.0A restriction on ACPI Table Signatures to 8261114237Snjlexactly 4 characters, alphanumeric only. 8262102550Siwasaki 8263102550Siwasaki 8264102550Siwasaki 8265102550Siwasaki 8266102550Siwasaki---------------------------------------- 8267102550SiwasakiSummary of changes for this release: 03_08_02 8268102550Siwasaki 8269102550Siwasaki 8270102550Siwasaki1) ACPI CA Core Subsystem Version 20020308: 8271102550Siwasaki 8272114237SnjlFixed a problem with AML Fields where the use of the "AccessAny" 8273193267Sjkimkeyword could cause an interpreter error due to attempting to read 8274126372Snjlor write beyond the end of the parent Operation Region. 8275102550Siwasaki 8276193267SjkimFixed a problem in the SystemMemory Operation Region handler where 8277126372Snjlan attempt was made to map memory beyond the end of the region. 8278126372SnjlThis was the root cause of the "AE_ERROR" and "AE_NO_MEMORY" 8279126372Snjlerrors on some Linux systems. 8280102550Siwasaki 8281114237SnjlFixed a problem where the interpreter/namespace "search to root" 8282114237Snjlalgorithm was not functioning for some object types. Relaxed the 8283114237Snjlinternal restriction on the search to allow upsearches for all 8284114237Snjlexternal object types as well as most internal types. 8285102550Siwasaki 8286102550Siwasaki 8287102550Siwasaki2) Linux: 8288102550Siwasaki 8289193267SjkimWe now use safe_halt() macro versus individual calls to sti | hlt. 8290102550Siwasaki 8291193267SjkimWriting to the processor limit interface should now work. "echo 1" 8292126372Snjlwill increase the limit, 2 will decrease, and 0 will reset to the 8293167802Sjkim 8294126372Snjldefault. 8295102550Siwasaki 8296102550Siwasaki 8297102550Siwasaki3) ASL compiler: 8298102550Siwasaki 8299102550SiwasakiFixed segfault on Linux version. 8300102550Siwasaki 8301102550Siwasaki 8302102550Siwasaki---------------------------------------- 8303102550SiwasakiSummary of changes for this release: 02_25_02 8304102550Siwasaki 8305102550Siwasaki1) ACPI CA Core Subsystem: 8306102550Siwasaki 8307102550Siwasaki 8308102550SiwasakiFixed a problem where the GPE bit masks were not initialized 8309102550Siwasakiproperly, causing erratic GPE behavior. 8310102550Siwasaki 8311193267SjkimImplemented limited support for multiple calling conventions. The 8312126372Snjlcode can be generated with either the VPL (variable parameter 8313114237Snjllist, or "C") convention, or the FPL (fixed parameter list, or 8314114237Snjl"Pascal") convention. The core subsystem is about 3.4% smaller 8315114237Snjlwhen generated with FPL. 8316102550Siwasaki 8317102550Siwasaki 8318102550Siwasaki2) Linux 8319102550Siwasaki 8320114237SnjlRe-add some /proc/acpi/event functionality that was lost during 8321114237Snjlthe rewrite 8322102550Siwasaki 8323193267SjkimResolved issue with /proc events for fixed-feature buttons showing 8324126372Snjlup as the system device. 8325102550Siwasaki 8326193267SjkimFixed checks on C2/C3 latencies to be inclusive of maximum values. 8327102550Siwasaki 8328114237SnjlReplaced AE_ERRORs in acpi_osl.c with more specific error codes. 8329102550Siwasaki 8330114237SnjlChanged ACPI PRT option from "pci=noacpi-routing" to "pci=noacpi" 8331102550Siwasaki 8332104470SiwasakiFixed limit interface & usage to fix bugs with passive cooling 8333104470Siwasakihysterisis. 8334102550Siwasaki 8335102550SiwasakiRestructured PRT support. 8336102550Siwasaki 8337102550Siwasaki 8338102550Siwasaki---------------------------------------- 8339102550SiwasakiSummary of changes for this label: 02_14_02 8340102550Siwasaki 8341102550Siwasaki 8342102550Siwasaki1) ACPI CA Core Subsystem: 8343102550Siwasaki 8344114237SnjlImplemented support in AcpiLoadTable to allow loading of FACS and 8345114237SnjlFADT tables. 8346102550Siwasaki 8347114237SnjlSuport for the now-obsolete interim 0.71 64-bit ACPI tables has 8348193267Sjkimbeen removed. All 64-bit platforms should be migrated to the ACPI 8349193267Sjkim2.0 tables. The actbl71.h header has been removed from the source 8350126372Snjltree. 8351102550Siwasaki 8352114237SnjlAll C macros defined within the subsystem have been prefixed with 8353114237Snjl"ACPI_" to avoid collision with other system include files. 8354102550Siwasaki 8355193267SjkimRemoved the return value for the two AcpiOsPrint interfaces, since 8356126372Snjlit is never used and causes lint warnings for ignoring the return 8357126372Snjlvalue. 8358102550Siwasaki 8359104470SiwasakiAdded error checking to all internal mutex acquire and release 8360104470Siwasakicalls. Although a failure from one of these interfaces is 8361104470Siwasakiprobably a fatal system error, these checks will cause the 8362114237Snjlimmediate abort of the currently executing method or interface. 8363102550Siwasaki 8364114237SnjlFixed a problem where the AcpiSetCurrentResources interface could 8365193267Sjkimfault. This was a side effect of the deployment of the new memory 8366126372Snjlallocation model. 8367102550Siwasaki 8368193267SjkimFixed a couple of problems with the Global Lock support introduced 8369193267Sjkimin the last major build. The "common" (1.0/2.0) internal FACS was 8370126372Snjlbeing overwritten with the FACS signature and clobbering the 8371126372SnjlGlobal Lock pointer. Also, the actual firmware FACS was being 8372126372Snjlunmapped after construction of the "common" FACS, preventing 8373126372Snjlaccess to the actual Global Lock field within it. The "common" 8374126372Snjlinternal FACS is no longer installed as an actual ACPI table; it 8375126372Snjlis used simply as a global. 8376102550Siwasaki 8377193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8378126372Snjlbelow. These are the code and data sizes for the acpica.lib 8379126372Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8380126372Snjlvalues do not include any ACPI driver or OSPM code. The debug 8381126372Snjlversion of the code includes the debug output trace mechanism and 8382193267Sjkimhas a larger code and data size. Note that these values will vary 8383126372Snjldepending on the efficiency of the compiler and the compiler 8384126372Snjloptions used during generation. 8385102550Siwasaki 8386102550Siwasaki Previous Release (02_07_01) 8387104470Siwasaki Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8388104470Siwasaki Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8389102550Siwasaki Current Release: 8390104470Siwasaki Non-Debug Version: 65.4K Code, 6.2K Data, 71.6K Total 8391104470Siwasaki Debug Version: 138.0K Code, 56.6K Data, 194.6K Total 8392102550Siwasaki 8393102550Siwasaki 8394102550Siwasaki2) Linux 8395102550Siwasaki 8396102550SiwasakiUpdated Linux-specific code for core macro and OSL interface 8397102550Siwasakichanges described above. 8398102550Siwasaki 8399114237SnjlImproved /proc/acpi/event. It now can be opened only once and has 8400114237Snjlproper poll functionality. 8401102550Siwasaki 8402102550SiwasakiFixed and restructured power management (acpi_bus). 8403102550Siwasaki 8404193267SjkimOnly create /proc "view by type" when devices of that class exist. 8405102550Siwasaki 8406104470SiwasakiFixed "charging/discharging" bug (and others) in acpi_battery. 8407102550Siwasaki 8408102550SiwasakiImproved thermal zone code. 8409102550Siwasaki 8410102550Siwasaki 8411102550Siwasaki3) ASL Compiler, version X2039: 8412102550Siwasaki 8413114237Snjl 8414114237SnjlImplemented the new compiler restriction on ASL String hex/octal 8415193267Sjkimescapes to non-null, ASCII values. An error results if an invalid 8416126372Snjlvalue is used. (This will require an ACPI 2.0 specification 8417126372Snjlchange.) 8418102550Siwasaki 8419193267SjkimAML object labels that are output to the optional C and ASM source 8420126372Snjlare now prefixed with both the ACPI table signature and table ID 8421126372Snjlto help guarantee uniqueness within a large BIOS project. 8422102550Siwasaki 8423102550Siwasaki 8424102550Siwasaki---------------------------------------- 8425102550SiwasakiSummary of changes for this label: 02_01_02 8426102550Siwasaki 8427102550Siwasaki1) ACPI CA Core Subsystem: 8428102550Siwasaki 8429114237SnjlACPI 2.0 support is complete in the entire Core Subsystem and the 8430114237SnjlASL compiler. All new ACPI 2.0 operators are implemented and all 8431114237Snjlother changes for ACPI 2.0 support are complete. With 8432193267Sjkimsimultaneous code and data optimizations throughout the subsystem, 8433126372SnjlACPI 2.0 support has been implemented with almost no additional 8434126372Snjlcost in terms of code and data size. 8435102550Siwasaki 8436114237SnjlImplemented a new mechanism for allocation of return buffers. If 8437114237Snjlthe buffer length is set to ACPI_ALLOCATE_BUFFER, the buffer will 8438114237Snjlbe allocated on behalf of the caller. Consolidated all return 8439114237Snjlbuffer validation and allocation to a common procedure. Return 8440193267Sjkimbuffers will be allocated via the primary OSL allocation interface 8441193267Sjkimsince it appears that a separate pool is not needed by most users. 8442126372SnjlIf a separate pool is required for these buffers, the caller can 8443126372Snjlstill use the original mechanism and pre-allocate the buffer(s). 8444102550Siwasaki 8445102550SiwasakiImplemented support for string operands within the DerefOf 8446102550Siwasakioperator. 8447102550Siwasaki 8448114237SnjlRestructured the Hardware and Event managers to be table driven, 8449114237Snjlsimplifying the source code and reducing the amount of generated 8450114237Snjlcode. 8451102550Siwasaki 8452102550SiwasakiSplit the common read/write low-level ACPI register bitfield 8453104470Siwasakiprocedure into a separate read and write, simplifying the code 8454104470Siwasakiconsiderably. 8455102550Siwasaki 8456114237SnjlObsoleted the AcpiOsCallocate OSL interface. This interface was 8457114237Snjlused only a handful of times and didn't have enough critical mass 8458193267Sjkimfor a separate interface. Replaced with a common calloc procedure 8459126372Snjlin the core. 8460102550Siwasaki 8461104470SiwasakiFixed a reported problem with the GPE number mapping mechanism 8462104470Siwasakithat allows GPE1 numbers to be non-contiguous with GPE0. 8463114237SnjlReorganized the GPE information and shrunk a large array that was 8464114237Snjloriginally large enough to hold info for all possible GPEs (256) 8465114237Snjlto simply large enough to hold all GPEs up to the largest GPE 8466114237Snjlnumber on the machine. 8467102550Siwasaki 8468114237SnjlFixed a reported problem with resource structure alignment on 64- 8469114237Snjlbit platforms. 8470102550Siwasaki 8471102550SiwasakiChanged the AcpiEnableEvent and AcpiDisableEvent external 8472102550Siwasakiinterfaces to not require any flags for the common case of 8473102550Siwasakienabling/disabling a GPE. 8474102550Siwasaki 8475104470SiwasakiImplemented support to allow a "Notify" on a Processor object. 8476102550Siwasaki 8477114237SnjlMost TBDs in comments within the source code have been resolved 8478114237Snjland eliminated. 8479102550Siwasaki 8480167802Sjkim 8481102550SiwasakiFixed a problem in the interpreter where a standalone parent 8482102550Siwasakiprefix (^) was not handled correctly in the interpreter and 8483102550Siwasakidebugger. 8484102550Siwasaki 8485102550SiwasakiRemoved obsolete and unnecessary GPE save/restore code. 8486102550Siwasaki 8487193267SjkimImplemented Field support in the ASL Load operator. This allows a 8488126372Snjltable to be loaded from a named field, in addition to loading a 8489114237Snjltable directly from an Operation Region. 8490102550Siwasaki 8491193267SjkimImplemented timeout and handle support in the external Global Lock 8492126372Snjlinterfaces. 8493102550Siwasaki 8494114237SnjlFixed a problem in the AcpiDump utility where pathnames were no 8495193267Sjkimlonger being generated correctly during the dump of named objects. 8496102550Siwasaki 8497102550SiwasakiModified the AML debugger to give a full display of if/while 8498102550Siwasakipredicates instead of just one AML opcode at a time. (The 8499193267Sjkimpredicate can have several nested ASL statements.) The old method 8500126372Snjlwas confusing during single stepping. 8501102550Siwasaki 8502193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8503126372Snjlbelow. These are the code and data sizes for the acpica.lib 8504114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8505114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8506114237Snjlversion of the code includes the debug output trace mechanism and 8507193267Sjkimhas a larger code and data size. Note that these values will vary 8508126372Snjldepending on the efficiency of the compiler and the compiler 8509114237Snjloptions used during generation. 8510102550Siwasaki 8511102550Siwasaki Previous Release (12_18_01) 8512114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8513114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8514102550Siwasaki Current Release: 8515114237Snjl Non-Debug Version: 65.2K Code, 6.2K Data, 71.4K Total 8516114237Snjl Debug Version: 136.9K Code, 56.4K Data, 193.3K Total 8517102550Siwasaki 8518102550Siwasaki2) Linux 8519102550Siwasaki 8520104470Siwasaki Implemented fix for PIIX reverse throttling errata (Processor 8521104470Siwasakidriver) 8522102550Siwasaki 8523102550SiwasakiAdded new Limit interface (Processor and Thermal drivers) 8524102550Siwasaki 8525102550SiwasakiNew thermal policy (Thermal driver) 8526102550Siwasaki 8527102550SiwasakiMany updates to /proc 8528102550Siwasaki 8529102550SiwasakiBattery "low" event support (Battery driver) 8530102550Siwasaki 8531104470SiwasakiSupports ACPI PCI IRQ routing (PCI Link and PCI root drivers) 8532102550Siwasaki 8533104470SiwasakiIA32 - IA64 initialization unification, no longer experimental 8534102550Siwasaki 8535102550SiwasakiMenuconfig options redesigned 8536102550Siwasaki 8537102550Siwasaki3) ASL Compiler, version X2037: 8538102550Siwasaki 8539193267SjkimImplemented several new output features to simplify integration of 8540126372SnjlAML code into firmware: 1) Output the AML in C source code with 8541193267Sjkimlabels for each named ASL object. The original ASL source code 8542193267Sjkimis interleaved as C comments. 2) Output the AML in ASM source code 8543126372Snjlwith labels and interleaved ASL source. 3) Output the AML in 8544126372Snjlraw hex table form, in either C or ASM. 8545102550Siwasaki 8546102550SiwasakiImplemented support for optional string parameters to the 8547102550SiwasakiLoadTable operator. 8548102550Siwasaki 8549104470SiwasakiCompleted support for embedded escape sequences within string 8550114237Snjlliterals. The compiler now supports all single character escapes 8551114237Snjlas well as the Octal and Hex escapes. Note: the insertion of a 8552114237Snjlnull byte into a string literal (via the hex/octal escape) causes 8553114237Snjlthe string to be immediately terminated. A warning is issued. 8554102550Siwasaki 8555104470SiwasakiFixed a problem where incorrect AML was generated for the case 8556104470Siwasakiwhere an ASL namepath consists of a single parent prefix ( 8557102550Siwasaki 8558102550Siwasaki) with no trailing name segments. 8559102550Siwasaki 8560102550SiwasakiThe compiler has been successfully generated with a 64-bit C 8561102550Siwasakicompiler. 8562102550Siwasaki 8563102550Siwasaki 8564102550Siwasaki 8565102550Siwasaki 8566102550Siwasaki---------------------------------------- 8567102550SiwasakiSummary of changes for this label: 12_18_01 8568102550Siwasaki 8569102550Siwasaki1) Linux 8570102550Siwasaki 8571114237SnjlEnhanced blacklist with reason and severity fields. Any table's 8572114237Snjlsignature may now be used to identify a blacklisted system. 8573102550Siwasaki 8574114237SnjlCall _PIC control method to inform the firmware which interrupt 8575114237Snjlmodel the OS is using. Turn on any disabled link devices. 8576102550Siwasaki 8577102550SiwasakiCleaned up busmgr /proc error handling (Andreas Dilger) 8578102550Siwasaki 8579102550Siwasaki 2) ACPI CA Core Subsystem: 8580102550Siwasaki 8581193267SjkimImplemented ACPI 2.0 semantics for the "Break" operator (Exit from 8582126372Snjlwhile loop) 8583102550Siwasaki 8584102550SiwasakiCompleted implementation of the ACPI 2.0 "Continue", 8585102550Siwasaki"ConcatenateResTemplate", "DataTableRegion", and "LoadTable" 8586193267Sjkimoperators. All new ACPI 2.0 operators are now implemented in both 8587193267Sjkimthe ASL compiler and the AML interpreter. The only remaining ACPI 8588126372Snjl2.0 task is support for the String data type in the DerefOf 8589193267Sjkimoperator. Fixed a problem with AcquireMutex where the status code 8590126372Snjlwas lost if the caller had to actually wait for the mutex. 8591102550Siwasaki 8592104470SiwasakiIncreased the maximum ASL Field size from 64K bits to 4G bits. 8593102550Siwasaki 8594193267SjkimCompleted implementation of the external Global Lock interfaces -- 8595126372SnjlAcpiAcquireGlobalLock and AcpiReleaseGlobalLock. The Timeout and 8596126372SnjlHandler parameters were added. 8597102550Siwasaki 8598102550SiwasakiCompleted another pass at removing warnings and issues when 8599114237Snjlcompiling with 64-bit compilers. The code now compiles cleanly 8600114237Snjlwith the Intel 64-bit C/C++ compiler. Most notably, the pointer 8601114237Snjladd and subtract (diff) macros have changed considerably. 8602102550Siwasaki 8603167802Sjkim 8604114237SnjlCreated and deployed a new ACPI_SIZE type that is 64-bits wide on 8605114237Snjl64-bit platforms, 32-bits on all others. This type is used 8606193267Sjkimwherever memory allocation and/or the C sizeof() operator is used, 8607126372Snjland affects the OSL memory allocation interfaces AcpiOsAllocate 8608126372Snjland AcpiOsCallocate. 8609102550Siwasaki 8610102550SiwasakiImplemented sticky user breakpoints in the AML debugger. 8611102550Siwasaki 8612193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8613126372Snjlbelow. These are the code and data sizes for the acpica.lib 8614114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8615114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8616114237Snjlversion of the code includes the debug output trace mechanism and 8617114237Snjlhas a larger code and data size. Note that these values will vary 8618114237Snjldepending on the efficiency of the compiler and the compiler 8619114237Snjloptions used during generation. 8620102550Siwasaki 8621102550Siwasaki Previous Release (12_05_01) 8622114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8623114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8624102550Siwasaki Current Release: 8625114237Snjl Non-Debug Version: 66.1K Code, 5.5K Data, 71.6K Total 8626114237Snjl Debug Version: 138.3K Code, 55.9K Data, 194.2K Total 8627102550Siwasaki 8628102550Siwasaki 3) ASL Compiler, version X2034: 8629102550Siwasaki 8630114237SnjlNow checks for (and generates an error if detected) the use of a 8631114237SnjlBreak or Continue statement without an enclosing While statement. 8632102550Siwasaki 8633167802Sjkim 8634102550SiwasakiSuccessfully generated the compiler with the Intel 64-bit C 8635102550Siwasakicompiler. 8636102550Siwasaki 8637102550Siwasaki ---------------------------------------- 8638102550SiwasakiSummary of changes for this label: 12_05_01 8639102550Siwasaki 8640102550Siwasaki 1) ACPI CA Core Subsystem: 8641102550Siwasaki 8642102550SiwasakiThe ACPI 2.0 CopyObject operator is fully implemented. This 8643104470Siwasakioperator creates a new copy of an object (and is also used to 8644193267Sjkimbypass the "implicit conversion" mechanism of the Store operator.) 8645102550Siwasaki 8646102550SiwasakiThe ACPI 2.0 semantics for the SizeOf operator are fully 8647102550Siwasakiimplemented. The change is that performing a SizeOf on a 8648114237Snjlreference object causes an automatic dereference of the object to 8649114237Snjltha actual value before the size is evaluated. This behavior was 8650114237Snjlundefined in ACPI 1.0. 8651102550Siwasaki 8652114237SnjlThe ACPI 2.0 semantics for the Extended IRQ resource descriptor 8653114237Snjlhave been implemented. The interrupt polarity and mode are now 8654114237Snjlindependently set. 8655102550Siwasaki 8656114237SnjlFixed a problem where ASL Constants (Zero, One, Ones, Revision) 8657114237Snjlappearing in Package objects were not properly converted to 8658114237Snjlintegers when the internal Package was converted to an external 8659114237Snjlobject (via the AcpiEvaluateObject interface.) 8660102550Siwasaki 8661114237SnjlFixed a problem with the namespace object deletion mechanism for 8662114237Snjlobjects created by control methods. There were two parts to this 8663193267Sjkimproblem: 1) Objects created during the initialization phase method 8664193267Sjkimparse were not being deleted, and 2) The object owner ID mechanism 8665126372Snjlto track objects was broken. 8666102550Siwasaki 8667114237SnjlFixed a problem where the use of the ASL Scope operator within a 8668114237Snjlcontrol method would result in an invalid opcode exception. 8669102550Siwasaki 8670114237SnjlFixed a problem introduced in the previous label where the buffer 8671114237Snjllength required for the _PRT structure was not being returned 8672114237Snjlcorrectly. 8673102550Siwasaki 8674193267SjkimCode and Data Size: Current core subsystem library sizes are shown 8675126372Snjlbelow. These are the code and data sizes for the acpica.lib 8676114237Snjlproduced by the Microsoft Visual C++ 6.0 compiler, and these 8677114237Snjlvalues do not include any ACPI driver or OSPM code. The debug 8678114237Snjlversion of the code includes the debug output trace mechanism and 8679193267Sjkimhas a larger code and data size. Note that these values will vary 8680126372Snjldepending on the efficiency of the compiler and the compiler 8681114237Snjloptions used during generation. 8682102550Siwasaki 8683102550Siwasaki Previous Release (11_20_01) 8684114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8685114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8686102550Siwasaki 8687102550Siwasaki Current Release: 8688114237Snjl Non-Debug Version: 64.7K Code, 5.3K Data, 70.0K Total 8689114237Snjl Debug Version: 136.2K Code, 55.6K Data, 191.8K Total 8690102550Siwasaki 8691102550Siwasaki 2) Linux: 8692102550Siwasaki 8693102550SiwasakiUpdated all files to apply cleanly against 2.4.16. 8694102550Siwasaki 8695104470SiwasakiAdded basic PCI Interrupt Routing Table (PRT) support for IA32 8696114237Snjl(acpi_pci.c), and unified the PRT code for IA32 and IA64. This 8697114237Snjlversion supports both static and dyanmic PRT entries, but dynamic 8698114237Snjlentries are treated as if they were static (not yet 8699114237Snjlreconfigurable). Architecture- specific code to use this data is 8700114237Snjlabsent on IA32 but should be available shortly. 8701102550Siwasaki 8702114237SnjlChanged the initialization sequence to start the ACPI interpreter 8703114237Snjl(acpi_init) prior to initialization of the PCI driver (pci_init) 8704114237Snjlin init/main.c. This ordering is required to support PRT and 8705114237Snjlfacilitate other (future) enhancement. A side effect is that the 8706193267SjkimACPI bus driver and certain device drivers can no longer be loaded 8707126372Snjlas modules. 8708102550Siwasaki 8709104470SiwasakiModified the 'make menuconfig' options to allow PCI Interrupt 8710104470SiwasakiRouting support to be included without the ACPI Bus and other 8711104470Siwasakidevice drivers. 8712102550Siwasaki 8713102550Siwasaki 3) ASL Compiler, version X2033: 8714102550Siwasaki 8715102550SiwasakiFixed some issues with the use of the new CopyObject and 8716102550SiwasakiDataTableRegion operators. Both are fully functional. 8717102550Siwasaki 8718102550Siwasaki ---------------------------------------- 8719102550SiwasakiSummary of changes for this label: 11_20_01 8720102550Siwasaki 8721102550Siwasaki 20 November 2001. Summary of changes for this release. 8722102550Siwasaki 8723102550Siwasaki 1) ACPI CA Core Subsystem: 8724102550Siwasaki 8725104470SiwasakiUpdated Index support to match ACPI 2.0 semantics. Storing a 8726193267SjkimInteger, String, or Buffer to an Index of a Buffer will store only 8727126372Snjlthe least-significant byte of the source to the Indexed buffer 8728126372Snjlbyte. Multiple writes are not performed. 8729102550Siwasaki 8730104470SiwasakiFixed a problem where the access type used in an AccessAs ASL 8731104470Siwasakioperator was not recorded correctly into the field object. 8732102550Siwasaki 8733102550SiwasakiFixed a problem where ASL Event objects were created in a 8734114237Snjlsignalled state. Events are now created in an unsignalled state. 8735102550Siwasaki 8736114237SnjlThe internal object cache is now purged after table loading and 8737114237Snjlinitialization to reduce the use of dynamic kernel memory -- on 8738114237Snjlthe assumption that object use is greatest during the parse phase 8739193267Sjkimof the entire table (versus the run-time use of individual control 8740126372Snjlmethods.) 8741102550Siwasaki 8742102550SiwasakiACPI 2.0 variable-length packages are now fully operational. 8743102550Siwasaki 8744193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8745126372Snjlfeature development with an actual reduction in the library size. 8746126372SnjlCurrent core subsystem library sizes are shown below. These are 8747126372Snjlthe code and data sizes for the acpica.lib produced by the 8748193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8749126372Snjlany ACPI driver or OSPM code. The debug version of the code 8750126372Snjlincludes the debug output trace mechanism and has a larger code 8751126372Snjland data size. Note that these values will vary depending on the 8752126372Snjlefficiency of the compiler and the compiler options used during 8753126372Snjlgeneration. 8754102550Siwasaki 8755102550Siwasaki Previous Release (11_09_01): 8756114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8757114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8758102550Siwasaki 8759102550Siwasaki Current Release: 8760114237Snjl Non-Debug Version: 64.1K Code, 5.3K Data, 69.4K Total 8761114237Snjl Debug Version: 135.1K Code, 55.4K Data, 190.5K Total 8762102550Siwasaki 8763102550Siwasaki 2) Linux: 8764102550Siwasaki 8765114237SnjlEnhanced the ACPI boot-time initialization code to allow the use 8766114237Snjlof Local APIC tables for processor enumeration on IA-32, and to 8767114237Snjlpave the way for a fully MPS-free boot (on SMP systems) in the 8768114237Snjlnear future. This functionality replaces 8769114237Snjlarch/i386/kernel/acpitables.c, which was introduced in an earlier 8770114237Snjl2.4.15-preX release. To enable this feature you must add 8771114237Snjl"acpi_boot=on" to the kernel command line -- see the help entry 8772193267Sjkimfor CONFIG_ACPI_BOOT for more information. An IA-64 release is in 8773126372Snjlthe works... 8774102550Siwasaki 8775114237SnjlRestructured the configuration options to allow boot-time table 8776114237Snjlparsing support without inclusion of the ACPI Interpreter (and 8777114237Snjlother) code. 8778102550Siwasaki 8779193267SjkimNOTE: This release does not include fixes for the reported events, 8780126372Snjlpower-down, and thermal passive cooling issues (coming soon). 8781102550Siwasaki 8782102550Siwasaki 3) ASL Compiler: 8783102550Siwasaki 8784114237SnjlAdded additional typechecking for Fields within restricted access 8785114237SnjlOperation Regions. All fields within EC and CMOS regions must be 8786114237Snjldeclared with ByteAcc. All fields withing SMBus regions must be 8787114237Snjldeclared with the BufferAcc access type. 8788102550Siwasaki 8789114237SnjlFixed a problem where the listing file output of control methods 8790114237Snjlno longer interleaved the actual AML code with the ASL source 8791114237Snjlcode. 8792102550Siwasaki 8793102550Siwasaki 8794102550Siwasaki 8795167802Sjkim 8796102550Siwasaki---------------------------------------- 8797102550SiwasakiSummary of changes for this label: 11_09_01 8798102550Siwasaki 8799102550Siwasaki1) ACPI CA Core Subsystem: 8800102550Siwasaki 8801114237SnjlImplemented ACPI 2.0-defined support for writes to fields with a 8802193267SjkimBuffer, String, or Integer source operand that is smaller than the 8803126372Snjltarget field. In these cases, the source operand is zero-extended 8804126372Snjlto fill the target field. 8805102550Siwasaki 8806104470SiwasakiFixed a problem where a Field starting bit offset (within the 8807104470Siwasakiparent operation region) was calculated incorrectly if the 8808167802Sjkim 8809104470Siwasakialignment of the field differed from the access width. This 8810114237Snjlaffected CreateWordField, CreateDwordField, CreateQwordField, and 8811114237Snjlpossibly other fields that use the "AccessAny" keyword. 8812102550Siwasaki 8813114237SnjlFixed a problem introduced in the 11_02_01 release where indirect 8814114237Snjlstores through method arguments did not operate correctly. 8815102550Siwasaki 8816102550Siwasaki2) Linux: 8817102550Siwasaki 8818102550SiwasakiImplemented boot-time ACPI table parsing support 8819114237Snjl(CONFIG_ACPI_BOOT) for IA32 and IA64 UP/SMP systems. This code 8820114237Snjlfacilitates the use of ACPI tables (e.g. MADT, SRAT) rather than 8821114237Snjllegacy BIOS interfaces (e.g. MPS) for the configuration of system 8822193267Sjkimprocessors, memory, and interrupts during setup_arch(). Note that 8823126372Snjlthis patch does not include the required architecture-specific 8824126372Snjlchanges required to apply this information -- subsequent patches 8825126372Snjlwill be posted for both IA32 and IA64 to achieve this. 8826102550Siwasaki 8827114237SnjlAdded low-level sleep support for IA32 platforms, courtesy of Pat 8828114237SnjlMochel. This allows IA32 systems to transition to/from various 8829114237Snjlsleeping states (e.g. S1, S3), although the lack of a centralized 8830114237Snjldriver model and power-manageable drivers will prevent its 8831114237Snjl(successful) use on most systems. 8832102550Siwasaki 8833114237SnjlRevamped the ACPI 'menuconfig' layout: created new "ACPI Support" 8834193267Sjkimsubmenu, unified IA32 and IA64 options, added new "Boot using ACPI 8835126372Snjltables" option, etc. 8836102550Siwasaki 8837114237SnjlIncreased the default timeout for the EC driver from 1ms to 10ms 8838114237Snjl(1000 cycles of 10us) to try to address AE_TIME errors during EC 8839114237Snjltransactions. 8840102550Siwasaki 8841102550Siwasaki ---------------------------------------- 8842102550SiwasakiSummary of changes for this label: 11_02_01 8843102550Siwasaki 8844102550Siwasaki1) ACPI CA Core Subsystem: 8845102550Siwasaki 8846102550SiwasakiACPI 2.0 Support: Implemented ACPI 2.0 64-bit Field access 8847102550Siwasaki(QWordAcc keyword). All ACPI 2.0 64-bit support is now 8848102550Siwasakiimplemented. 8849102550Siwasaki 8850114237SnjlOSL Interfaces: Several of the OSL (AcpiOs*) interfaces required 8851114237Snjlchanges to support ACPI 2.0 Qword field access. Read/Write 8852193267SjkimPciConfiguration(), Read/Write Memory(), and Read/Write Port() now 8853126372Snjlaccept an ACPI_INTEGER (64 bits) as the value parameter. Also, 8854193267Sjkimthe value parameter for the address space handler interface is now 8855193267Sjkiman ACPI_INTEGER. OSL implementations of these interfaces must now 8856126372Snjlhandle the case where the Width parameter is 64. 8857102550Siwasaki 8858104470SiwasakiIndex Fields: Fixed a problem where unaligned bit assembly and 8859104470Siwasakidisassembly for IndexFields was not supported correctly. 8860102550Siwasaki 8861102550SiwasakiIndex and Bank Fields: Nested Index and Bank Fields are now 8862104470Siwasakisupported. During field access, a check is performed to ensure 8863114237Snjlthat the value written to an Index or Bank register is not out of 8864114237Snjlthe range of the register. The Index (or Bank) register is 8865114237Snjlwritten before each access to the field data. Future support will 8866114237Snjlinclude allowing individual IndexFields to be wider than the 8867114237SnjlDataRegister width. 8868102550Siwasaki 8869114237SnjlFields: Fixed a problem where the AML interpreter was incorrectly 8870114237Snjlattempting to write beyond the end of a Field/OpRegion. This was 8871114237Snjla boundary case that occurred when a DWORD field was written to a 8872114237SnjlBYTE access OpRegion, forcing multiple writes and causing the 8873114237Snjlinterpreter to write one datum too many. 8874102550Siwasaki 8875102550SiwasakiFields: Fixed a problem with Field/OpRegion access where the 8876114237Snjlstarting bit address of a field was incorrectly calculated if the 8877114237Snjlcurrent access type was wider than a byte (WordAcc, DwordAcc, or 8878114237SnjlQwordAcc). 8879102550Siwasaki 8880104470SiwasakiFields: Fixed a problem where forward references to individual 8881193267SjkimFieldUnits (individual Field names within a Field definition) were 8882126372Snjlnot resolved during the AML table load. 8883102550Siwasaki 8884104470SiwasakiFields: Fixed a problem where forward references from a Field 8885104470Siwasakidefinition to the parent Operation Region definition were not 8886104470Siwasakiresolved during the AML table load. 8887104470Siwasaki 8888114237SnjlFields: Duplicate FieldUnit names within a scope are now detected 8889114237Snjlduring AML table load. 8890102550Siwasaki 8891193267SjkimAcpi Interfaces: Fixed a problem where the AcpiGetName() interface 8892126372Snjlreturned an incorrect name for the root node. 8893102550Siwasaki 8894193267SjkimCode and Data Size: Code and Data optimizations have permitted new 8895126372Snjlfeature development with an actual reduction in the library size. 8896126372SnjlCurrent core subsystem library sizes are shown below. These are 8897126372Snjlthe code and data sizes for the acpica.lib produced by the 8898193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8899126372Snjlany ACPI driver or OSPM code. The debug version of the code 8900126372Snjlincludes the debug output trace mechanism and has a larger code 8901126372Snjland data size. Note that these values will vary depending on the 8902126372Snjlefficiency of the compiler and the compiler options used during 8903126372Snjlgeneration. 8904102550Siwasaki 8905102550Siwasaki Previous Release (10_18_01): 8906114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8907114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8908102550Siwasaki 8909102550Siwasaki Current Release: 8910114237Snjl Non-Debug Version: 63.7K Code, 5.2K Data, 68.9K Total 8911114237Snjl Debug Version: 134.5K Code, 55.4K Data, 189.9K Total 8912102550Siwasaki 8913102550Siwasaki 2) Linux: 8914102550Siwasaki 8915102550SiwasakiImproved /proc processor output (Pavel Machek) Re-added 8916102550SiwasakiMODULE_LICENSE("GPL") to all modules. 8917102550Siwasaki 8918102550Siwasaki 3) ASL Compiler version X2030: 8919102550Siwasaki 8920104470SiwasakiDuplicate FieldUnit names within a scope are now detected and 8921104470Siwasakiflagged as errors. 8922102550Siwasaki 8923102550Siwasaki 4) Documentation: 8924102550Siwasaki 8925104470SiwasakiProgrammer Reference updated to reflect OSL and address space 8926104470Siwasakihandler interface changes described above. 8927102550Siwasaki 8928102550Siwasaki---------------------------------------- 8929102550SiwasakiSummary of changes for this label: 10_18_01 8930102550Siwasaki 8931102550SiwasakiACPI CA Core Subsystem: 8932102550Siwasaki 8933193267SjkimFixed a problem with the internal object reference count mechanism 8934126372Snjlthat occasionally caused premature object deletion. This resolves 8935126372Snjlall of the outstanding problem reports where an object is deleted 8936193267Sjkimin the middle of an interpreter evaluation. Although this problem 8937126372Snjlonly showed up in rather obscure cases, the solution to the 8938126372Snjlproblem involved an adjustment of all reference counts involving 8939126372Snjlobjects attached to namespace nodes. 8940102550Siwasaki 8941102550SiwasakiFixed a problem with Field support in the interpreter where 8942114237Snjlwriting to an aligned field whose length is an exact multiple (2 8943193267Sjkimor greater) of the field access granularity would cause an attempt 8944126372Snjlto write beyond the end of the field. 8945102550Siwasaki 8946102550SiwasakiThe top level AML opcode execution functions within the 8947102550Siwasakiinterpreter have been renamed with a more meaningful and 8948102550Siwasakiconsistent naming convention. The modules exmonad.c and 8949102550Siwasakiexdyadic.c were eliminated. New modules are exoparg1.c, 8950102550Siwasakiexoparg2.c, exoparg3.c, and exoparg6.c. 8951102550Siwasaki 8952114237SnjlSupport for the ACPI 2.0 "Mid" ASL operator has been implemented. 8953102550Siwasaki 8954114237SnjlFixed a problem where the AML debugger was causing some internal 8955114237Snjlobjects to not be deleted during subsystem termination. 8956102550Siwasaki 8957104470SiwasakiFixed a problem with the external AcpiEvaluateObject interface 8958104470Siwasakiwhere the subsystem would fault if the named object to be 8959104470Siwasakievaluated refered to a constant such as Zero, Ones, etc. 8960102550Siwasaki 8961102550SiwasakiFixed a problem with IndexFields and BankFields where the 8962114237Snjlsubsystem would fault if the index, data, or bank registers were 8963114237Snjlnot defined in the same scope as the field itself. 8964102550Siwasaki 8965104470SiwasakiAdded printf format string checking for compilers that support 8966104470Siwasakithis feature. Corrected more than 50 instances of issues with 8967104470Siwasakiformat specifiers within invocations of ACPI_DEBUG_PRINT 8968104470Siwasakithroughout the core subsystem code. 8969102550Siwasaki 8970104470SiwasakiThe ASL "Revision" operator now returns the ACPI support level 8971193267Sjkimimplemented in the core - the value "2" since the ACPI 2.0 support 8972126372Snjlis more than 50% implemented. 8973102550Siwasaki 8974114237SnjlEnhanced the output of the AML debugger "dump namespace" command 8975114237Snjlto output in a more human-readable form. 8976102550Siwasaki 8977114237SnjlCurrent core subsystem library code sizes are shown below. These 8978167802Sjkim 8979114237Snjlare the code and data sizes for the acpica.lib produced by the 8980193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 8981126372Snjlany ACPI driver or OSPM code. The debug version of the code 8982126372Snjlincludes the full debug trace mechanism -- leading to a much 8983167802Sjkim 8984114237Snjllarger code and data size. Note that these values will vary 8985114237Snjldepending on the efficiency of the compiler and the compiler 8986114237Snjloptions used during generation. 8987102550Siwasaki 8988102550Siwasaki Previous Label (09_20_01): 8989114237Snjl Non-Debug Version: 65K Code, 5K Data, 70K Total 8990114237Snjl Debug Version: 138K Code, 58K Data, 196K Total 8991102550Siwasaki 8992102550Siwasaki This Label: 8993102550Siwasaki 8994114237Snjl Non-Debug Version: 63.9K Code, 5.1K Data, 69.0K Total 8995114237Snjl Debug Version: 136.7K Code, 57.4K Data, 194.2K Total 8996114237Snjl 8997102550SiwasakiLinux: 8998102550Siwasaki 8999104470SiwasakiImplemented a "Bad BIOS Blacklist" to track machines that have 9000104470Siwasakiknown ASL/AML problems. 9001102550Siwasaki 9002193267SjkimEnhanced the /proc interface for the thermal zone driver and added 9003126372Snjlsupport for _HOT (the critical suspend trip point). The 'info' 9004193267Sjkimfile now includes threshold/policy information, and allows setting 9005126372Snjlof _SCP (cooling preference) and _TZP (polling frequency) values 9006193267Sjkimto the 'info' file. Examples: "echo tzp=5 > info" sets the polling 9007126372Snjlfrequency to 5 seconds, and "echo scp=1 > info" sets the cooling 9008126372Snjlpreference to the passive/quiet mode (if supported by the ASL). 9009102550Siwasaki 9010104470SiwasakiImplemented a workaround for a gcc bug that resuted in an OOPs 9011104470Siwasakiwhen loading the control method battery driver. 9012102550Siwasaki 9013102550Siwasaki ---------------------------------------- 9014102550SiwasakiSummary of changes for this label: 09_20_01 9015102550Siwasaki 9016102550Siwasaki ACPI CA Core Subsystem: 9017102550Siwasaki 9018104470SiwasakiThe AcpiEnableEvent and AcpiDisableEvent interfaces have been 9019104470Siwasakimodified to allow individual GPE levels to be flagged as wake- 9020114237Snjlenabled (i.e., these GPEs are to remain enabled when the platform 9021114237Snjlsleeps.) 9022102550Siwasaki 9023104470SiwasakiThe AcpiEnterSleepState and AcpiLeaveSleepState interfaces now 9024104470Siwasakisupport wake-enabled GPEs. This means that upon entering the 9025104470Siwasakisleep state, all GPEs that are not wake-enabled are disabled. 9026104470SiwasakiWhen leaving the sleep state, these GPEs are reenabled. 9027102550Siwasaki 9028114237SnjlA local double-precision divide/modulo module has been added to 9029114237Snjlenhance portability to OS kernels where a 64-bit math library is 9030114237Snjlnot available. The new module is "utmath.c". 9031102550Siwasaki 9032104470SiwasakiSeveral optimizations have been made to reduce the use of CPU 9033114237Snjlstack. Originally over 2K, the maximum stack usage is now below 9034114237Snjl2K at 1860 bytes (1.82k) 9035102550Siwasaki 9036114237SnjlFixed a problem with the AcpiGetFirmwareTable interface where the 9037193267Sjkimroot table pointer was not mapped into a logical address properly. 9038102550Siwasaki 9039193267SjkimFixed a problem where a NULL pointer was being dereferenced in the 9040126372Snjlinterpreter code for the ASL Notify operator. 9041102550Siwasaki 9042102550SiwasakiFixed a problem where the use of the ASL Revision operator 9043114237Snjlreturned an error. This operator now returns the current version 9044114237Snjlof the ACPI CA core subsystem. 9045102550Siwasaki 9046114237SnjlFixed a problem where objects passed as control method parameters 9047114237Snjlto AcpiEvaluateObject were always deleted at method termination. 9048114237SnjlHowever, these objects may end up being stored into the namespace 9049114237Snjlby the called method. The object reference count mechanism was 9050114237Snjlapplied to these objects instead of a force delete. 9051102550Siwasaki 9052114237SnjlFixed a problem where static strings or buffers (contained in the 9053114237SnjlAML code) that are declared as package elements within the ASL 9054114237Snjlcode could cause a fault because the interpreter would attempt to 9055114237Snjldelete them. These objects are now marked with the "static 9056114237Snjlobject" flag to prevent any attempt to delete them. 9057102550Siwasaki 9058114237SnjlImplemented an interpreter optimization to use operands directly 9059114237Snjlfrom the state object instead of extracting the operands to local 9060114237Snjlvariables. This reduces stack use and code size, and improves 9061114237Snjlperformance. 9062102550Siwasaki 9063193267SjkimThe module exxface.c was eliminated as it was an unnecessary extra 9064126372Snjllayer of code. 9065102550Siwasaki 9066114237SnjlCurrent core subsystem library code sizes are shown below. These 9067114237Snjlare the code and data sizes for the acpica.lib produced by the 9068193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9069126372Snjlany ACPI driver or OSPM code. The debug version of the code 9070126372Snjlincludes the full debug trace mechanism -- leading to a much 9071114237Snjllarger code and data size. Note that these values will vary 9072114237Snjldepending on the efficiency of the compiler and the compiler 9073114237Snjloptions used during generation. 9074102550Siwasaki 9075102550Siwasaki Non-Debug Version: 65K Code, 5K Data, 70K Total 9076114237Snjl(Previously 69K) Debug Version: 138K Code, 58K Data, 196K 9077114237SnjlTotal (Previously 195K) 9078102550Siwasaki 9079102550SiwasakiLinux: 9080102550Siwasaki 9081114237SnjlSupport for ACPI 2.0 64-bit integers has been added. All ACPI 9082114237SnjlInteger objects are now 64 bits wide 9083102550Siwasaki 9084114237SnjlAll Acpi data types and structures are now in lower case. Only 9085114237SnjlAcpi macros are upper case for differentiation. 9086102550Siwasaki 9087102550Siwasaki Documentation: 9088102550Siwasaki 9089102550SiwasakiChanges to the external interfaces as described above. 9090102550Siwasaki 9091102550Siwasaki ---------------------------------------- 9092102550SiwasakiSummary of changes for this label: 08_31_01 9093102550Siwasaki 9094102550Siwasaki ACPI CA Core Subsystem: 9095102550Siwasaki 9096114237SnjlA bug with interpreter implementation of the ASL Divide operator 9097114237Snjlwas found and fixed. The implicit function return value (not the 9098114237Snjlexplicit store operands) was returning the remainder instead of 9099114237Snjlthe quotient. This was a longstanding bug and it fixes several 9100114237Snjlknown outstanding issues on various platforms. 9101102550Siwasaki 9102104470SiwasakiThe ACPI_DEBUG_PRINT and function trace entry/exit macros have 9103193267Sjkimbeen further optimized for size. There are 700 invocations of the 9104126372SnjlDEBUG_PRINT macro alone, so each optimization reduces the size of 9105126372Snjlthe debug version of the subsystem significantly. 9106102550Siwasaki 9107114237SnjlA stack trace mechanism has been implemented. The maximum stack 9108193267Sjkimusage is about 2K on 32-bit platforms. The debugger command "stat 9109126372Snjlstack" will display the current maximum stack usage. 9110102550Siwasaki 9111114237SnjlAll public symbols and global variables within the subsystem are 9112114237Snjlnow prefixed with the string "Acpi". This keeps all of the 9113114237Snjlsymbols grouped together in a kernel map, and avoids conflicts 9114114237Snjlwith other kernel subsystems. 9115102550Siwasaki 9116114237SnjlMost of the internal fixed lookup tables have been moved into the 9117114237Snjlcode segment via the const operator. 9118102550Siwasaki 9119104470SiwasakiSeveral enhancements have been made to the interpreter to both 9120104470Siwasakireduce the code size and improve performance. 9121102550Siwasaki 9122114237SnjlCurrent core subsystem library code sizes are shown below. These 9123114237Snjlare the code and data sizes for the acpica.lib produced by the 9124193267SjkimMicrosoft Visual C++ 6.0 compiler, and these values do not include 9125126372Snjlany ACPI driver or OSPM code. The debug version of the code 9126126372Snjlincludes the full debug trace mechanism which contains over 700 9127126372Snjlinvocations of the DEBUG_PRINT macro, 500 function entry macro 9128126372Snjlinvocations, and over 900 function exit macro invocations -- 9129126372Snjlleading to a much larger code and data size. Note that these 9130114237Snjlvalues will vary depending on the efficiency of the compiler and 9131114237Snjlthe compiler options used during generation. 9132102550Siwasaki 9133102550Siwasaki Non-Debug Version: 64K Code, 5K Data, 69K Total 9134102550SiwasakiDebug Version: 137K Code, 58K Data, 195K Total 9135102550Siwasaki 9136102550Siwasaki Linux: 9137102550Siwasaki 9138104470SiwasakiImplemented wbinvd() macro, pending a kernel-wide definition. 9139102550Siwasaki 9140102550SiwasakiFixed /proc/acpi/event to handle poll() and short reads. 9141102550Siwasaki 9142102550Siwasaki ASL Compiler, version X2026: 9143102550Siwasaki 9144104470SiwasakiFixed a problem introduced in the previous label where the AML 9145167802Sjkim 9146104470Siwasakicode emitted for package objects produced packages with zero 9147104470Siwasakilength. 9148102550Siwasaki 9149102550Siwasaki ---------------------------------------- 9150102550SiwasakiSummary of changes for this label: 08_16_01 9151102550Siwasaki 9152102550SiwasakiACPI CA Core Subsystem: 9153102550Siwasaki 9154114237SnjlThe following ACPI 2.0 ASL operators have been implemented in the 9155114237SnjlAML interpreter (These are already supported by the Intel ASL 9156193267Sjkimcompiler): ToDecimalString, ToHexString, ToString, ToInteger, and 9157126372SnjlToBuffer. Support for 64-bit AML constants is implemented in the 9158126372SnjlAML parser, debugger, and disassembler. 9159102550Siwasaki 9160114237SnjlThe internal memory tracking mechanism (leak detection code) has 9161114237Snjlbeen upgraded to reduce the memory overhead (a separate tracking 9162114237Snjlblock is no longer allocated for each memory allocation), and now 9163114237Snjlsupports all of the internal object caches. 9164102550Siwasaki 9165114237SnjlThe data structures and code for the internal object caches have 9166114237Snjlbeen coelesced and optimized so that there is a single cache and 9167114237Snjlmemory list data structure and a single group of functions that 9168114237Snjlimplement generic cache management. This has reduced the code 9169114237Snjlsize in both the debug and release versions of the subsystem. 9170102550Siwasaki 9171193267SjkimThe DEBUG_PRINT macro(s) have been optimized for size and replaced 9172126372Snjlby ACPI_DEBUG_PRINT. The syntax for this macro is slightly 9173126372Snjldifferent, because it generates a single call to an internal 9174126372Snjlfunction. This results in a savings of about 90 bytes per 9175193267Sjkiminvocation, resulting in an overall code and data savings of about 9176126372Snjl16% in the debug version of the subsystem. 9177102550Siwasaki 9178102550Siwasaki Linux: 9179102550Siwasaki 9180114237SnjlFixed C3 disk corruption problems and re-enabled C3 on supporting 9181114237Snjlmachines. 9182102550Siwasaki 9183102550SiwasakiIntegrated low-level sleep code by Patrick Mochel. 9184102550Siwasaki 9185102550SiwasakiFurther tweaked source code Linuxization. 9186102550Siwasaki 9187102550SiwasakiOther minor fixes. 9188102550Siwasaki 9189102550Siwasaki ASL Compiler: 9190102550Siwasaki 9191114237SnjlSupport for ACPI 2.0 variable length packages is fixed/completed. 9192102550Siwasaki 9193114237SnjlFixed a problem where the optional length parameter for the ACPI 9194114237Snjl2.0 ToString operator. 9195102550Siwasaki 9196114237SnjlFixed multiple extraneous error messages when a syntax error is 9197114237Snjldetected within the declaration line of a control method. 9198102550Siwasaki 9199102550Siwasaki ---------------------------------------- 9200102550SiwasakiSummary of changes for this label: 07_17_01 9201102550Siwasaki 9202102550SiwasakiACPI CA Core Subsystem: 9203102550Siwasaki 9204104470SiwasakiAdded a new interface named AcpiGetFirmwareTable to obtain any 9205193267SjkimACPI table via the ACPI signature. The interface can be called at 9206126372Snjlany time during kernel initialization, even before the kernel 9207193267Sjkimvirtual memory manager is initialized and paging is enabled. This 9208126372Snjlallows kernel subsystems to obtain ACPI tables very early, even 9209126372Snjlbefore the ACPI CA subsystem is initialized. 9210102550Siwasaki 9211104470SiwasakiFixed a problem where Fields defined with the AnyAcc attribute 9212104470Siwasakicould be resolved to the incorrect address under the following 9213114237Snjlconditions: 1) the field width is larger than 8 bits and 2) the 9214114237Snjlparent operation region is not defined on a DWORD boundary. 9215102550Siwasaki 9216114237SnjlFixed a problem where the interpreter is not being locked during 9217114237Snjlnamespace initialization (during execution of the _INI control 9218114237Snjlmethods), causing an error when an attempt is made to release it 9219114237Snjllater. 9220102550Siwasaki 9221104470SiwasakiACPI 2.0 support in the AML Interpreter has begun and will be 9222114237Snjlongoing throughout the rest of this year. In this label, The Mod 9223114237Snjloperator is implemented. 9224102550Siwasaki 9225102550SiwasakiAdded a new data type to contain full PCI addresses named 9226193267SjkimACPI_PCI_ID. This structure contains the PCI Segment, Bus, Device, 9227126372Snjland Function values. 9228102550Siwasaki 9229102550Siwasaki Linux: 9230102550Siwasaki 9231102550SiwasakiEnhanced the Linux version of the source code to change most 9232102550Siwasakicapitalized ACPI type names to lowercase. For example, all 9233114237Snjlinstances of ACPI_STATUS are changed to acpi_status. This will 9234114237Snjlresult in a large diff, but the change is strictly cosmetic and 9235114237Snjlaligns the CA code closer to the Linux coding standard. 9236102550Siwasaki 9237102550SiwasakiOSL Interfaces: 9238102550Siwasaki 9239193267SjkimThe interfaces to the PCI configuration space have been changed to 9240193267Sjkimadd the PCI Segment number and to split the single 32-bit combined 9241126372SnjlDeviceFunction field into two 16-bit fields. This was 9242114237Snjlaccomplished by moving the four values that define an address in 9243114237SnjlPCI configuration space (segment, bus, device, and function) to 9244114237Snjlthe new ACPI_PCI_ID structure. 9245102550Siwasaki 9246104470SiwasakiThe changes to the PCI configuration space interfaces led to a 9247104470Siwasakireexamination of the complete set of address space access 9248114237Snjlinterfaces for PCI, I/O, and Memory. The previously existing 18 9249114237Snjlinterfaces have proven difficult to maintain (any small change 9250193267Sjkimmust be propagated across at least 6 interfaces) and do not easily 9251193267Sjkimallow for future expansion to 64 bits if necessary. Also, on some 9252126372Snjlsystems, it would not be appropriate to demultiplex the access 9253126372Snjlwidth (8, 16, 32,or 64) before calling the OSL if the 9254114237Snjlcorresponding native OS interfaces contain a similar access width 9255114237Snjlparameter. For these reasons, the 18 address space interfaces 9256114237Snjlhave been replaced by these 6 new ones: 9257102550Siwasaki 9258102550SiwasakiAcpiOsReadPciConfiguration 9259102550SiwasakiAcpiOsWritePciConfiguration 9260102550SiwasakiAcpiOsReadMemory 9261102550SiwasakiAcpiOsWriteMemory 9262102550SiwasakiAcpiOsReadPort 9263102550SiwasakiAcpiOsWritePort 9264102550Siwasaki 9265114237SnjlAdded a new interface named AcpiOsGetRootPointer to allow the OSL 9266114237Snjlto perform the platform and/or OS-specific actions necessary to 9267114237Snjlobtain the ACPI RSDP table pointer. On IA-32 platforms, this 9268114237Snjlinterface will simply call down to the CA core to perform the low- 9269114237Snjlmemory search for the table. On IA-64, the RSDP is obtained from 9270114237SnjlEFI. Migrating this interface to the OSL allows the CA core to 9271167802Sjkim 9272114237Snjlremain OS and platform independent. 9273102550Siwasaki 9274104470SiwasakiAdded a new interface named AcpiOsSignal to provide a generic 9275114237Snjl"function code and pointer" interface for various miscellaneous 9276114237Snjlsignals and notifications that must be made to the host OS. The 9277114237Snjlfirst such signals are intended to support the ASL Fatal and 9278114237SnjlBreakpoint operators. In the latter case, the AcpiOsBreakpoint 9279114237Snjlinterface has been obsoleted. 9280102550Siwasaki 9281102550SiwasakiThe definition of the AcpiFormatException interface has been 9282114237Snjlchanged to simplify its use. The caller no longer must supply a 9283114237Snjlbuffer to the call; A pointer to a const string is now returned 9284114237Snjldirectly. This allows the call to be easily used in printf 9285114237Snjlstatements, etc. since the caller does not have to manage a local 9286114237Snjlbuffer. 9287102550Siwasaki 9288114237Snjl 9289102550Siwasaki ASL Compiler, Version X2025: 9290102550Siwasaki 9291114237SnjlThe ACPI 2.0 Switch/Case/Default operators have been implemented 9292114237Snjland are fully functional. They will work with all ACPI 1.0 9293193267Sjkiminterpreters, since the operators are simply translated to If/Else 9294126372Snjlpairs. 9295102550Siwasaki 9296104470SiwasakiThe ACPI 2.0 ElseIf operator is implemented and will also work 9297104470Siwasakiwith 1.0 interpreters, for the same reason. 9298102550Siwasaki 9299114237SnjlImplemented support for ACPI 2.0 variable-length packages. These 9300114237Snjlpackages have a separate opcode, and their size is determined by 9301114237Snjlthe interpreter at run-time. 9302102550Siwasaki 9303193267SjkimDocumentation The ACPI CA Programmer Reference has been updated to 9304126372Snjlreflect the new interfaces and changes to existing interfaces. 9305102550Siwasaki 9306102550Siwasaki ------------------------------------------ 9307102550SiwasakiSummary of changes for this label: 06_15_01 9308102550Siwasaki 9309102550Siwasaki ACPI CA Core Subsystem: 9310102550Siwasaki 9311102550SiwasakiFixed a problem where a DWORD-accessed field within a Buffer 9312114237Snjlobject would get its byte address inadvertently rounded down to 9313114237Snjlthe nearest DWORD. Buffers are always Byte-accessible. 9314102550Siwasaki 9315102550Siwasaki ASL Compiler, version X2024: 9316102550Siwasaki 9317114237SnjlFixed a problem where the Switch() operator would either fault or 9318114237Snjlhang the compiler. Note however, that the AML code for this ACPI 9319114237Snjl2.0 operator is not yet implemented. 9320102550Siwasaki 9321114237SnjlCompiler uses the new AcpiOsGetTimer interface to obtain compile 9322114237Snjltimings. 9323102550Siwasaki 9324114237SnjlImplementation of the CreateField operator automatically converts 9325114237Snjla reference to a named field within a resource descriptor from a 9326114237Snjlbyte offset to a bit offset if required. 9327102550Siwasaki 9328102550SiwasakiAdded some missing named fields from the resource descriptor 9329193267Sjkimsupport. These are the names that are automatically created by the 9330126372Snjlcompiler to reference fields within a descriptor. They are only 9331126372Snjlvalid at compile time and are not passed through to the AML 9332114237Snjlinterpreter. 9333102550Siwasaki 9334104470SiwasakiResource descriptor named fields are now typed as Integers and 9335104470Siwasakisubject to compile-time typechecking when used in expressions. 9336102550Siwasaki 9337102550Siwasaki ------------------------------------------ 9338102550SiwasakiSummary of changes for this label: 05_18_01 9339102550Siwasaki 9340102550Siwasaki ACPI CA Core Subsystem: 9341102550Siwasaki 9342114237SnjlFixed a couple of problems in the Field support code where bits 9343193267Sjkimfrom adjacent fields could be returned along with the proper field 9344126372Snjlbits. Restructured the field support code to improve performance, 9345126372Snjlreadability and maintainability. 9346102550Siwasaki 9347114237SnjlNew DEBUG_PRINTP macro automatically inserts the procedure name 9348114237Snjlinto the output, saving hundreds of copies of procedure name 9349114237Snjlstrings within the source, shrinking the memory footprint of the 9350114237Snjldebug version of the core subsystem. 9351102550Siwasaki 9352102550Siwasaki Source Code Structure: 9353102550Siwasaki 9354104470SiwasakiThe source code directory tree was restructured to reflect the 9355114237Snjlcurrent organization of the component architecture. Some files 9356114237Snjland directories have been moved and/or renamed. 9357102550Siwasaki 9358102550Siwasaki Linux: 9359102550Siwasaki 9360102550SiwasakiFixed leaking kacpidpc processes. 9361102550Siwasaki 9362102550SiwasakiFixed queueing event data even when /proc/acpi/event is not 9363102550Siwasakiopened. 9364102550Siwasaki 9365102550Siwasaki ASL Compiler, version X2020: 9366102550Siwasaki 9367114237SnjlMemory allocation performance enhancement - over 24X compile time 9368114237Snjlimprovement on large ASL files. Parse nodes and namestring 9369114237Snjlbuffers are now allocated from a large internal compiler buffer. 9370102550Siwasaki 9371102550SiwasakiThe temporary .SRC file is deleted unless the "-s" option is 9372102550Siwasakispecified 9373102550Siwasaki 9374193267SjkimThe "-d" debug output option now sends all output to the .DBG file 9375126372Snjlinstead of the console. 9376102550Siwasaki 9377102550Siwasaki"External" second parameter is now optional 9378102550Siwasaki 9379102550Siwasaki"ElseIf" syntax now properly allows the predicate 9380102550Siwasaki 9381102550SiwasakiLast operand to "Load" now recognized as a Target operand 9382102550Siwasaki 9383102550SiwasakiDebug object can now be used anywhere as a normal object. 9384102550Siwasaki 9385102550SiwasakiResourceTemplate now returns an object of type BUFFER 9386102550Siwasaki 9387102550SiwasakiEISAID now returns an object of type INTEGER 9388102550Siwasaki 9389102550Siwasaki"Index" now works with a STRING operand 9390102550Siwasaki 9391102550Siwasaki"LoadTable" now accepts optional parameters 9392102550Siwasaki 9393102550Siwasaki"ToString" length parameter is now optional 9394102550Siwasaki 9395102550Siwasaki"Interrupt (ResourceType," parse error fixed. 9396102550Siwasaki 9397104470Siwasaki"Register" with a user-defined region space parse error fixed 9398102550Siwasaki 9399114237SnjlEscaped backslash at the end of a string ("\\") scan/parse error 9400114237Snjlfixed 9401102550Siwasaki 9402102550Siwasaki"Revision" is now an object of type INTEGER. 9403102550Siwasaki 9404102550Siwasaki 9405102550Siwasaki 9406102550Siwasaki------------------------------------------ 9407102550SiwasakiSummary of changes for this label: 05_02_01 9408102550Siwasaki 9409102550SiwasakiLinux: 9410102550Siwasaki 9411102550Siwasaki/proc/acpi/event now blocks properly. 9412102550Siwasaki 9413102550SiwasakiRemoved /proc/sys/acpi. You can still dump your DSDT from 9414102550Siwasaki/proc/acpi/dsdt. 9415102550Siwasaki 9416102550Siwasaki ACPI CA Core Subsystem: 9417102550Siwasaki 9418193267SjkimFixed a problem introduced in the previous label where some of the 9419126372Snjl"small" resource descriptor types were not recognized. 9420102550Siwasaki 9421193267SjkimImproved error messages for the case where an ASL Field is outside 9422126372Snjlthe range of the parent operation region. 9423102550Siwasaki 9424102550Siwasaki ASL Compiler, version X2018: 9425102550Siwasaki 9426167802Sjkim 9427193267SjkimAdded error detection for ASL Fields that extend beyond the length 9428126372Snjlof the parent operation region (only if the length of the region 9429126372Snjlis known at compile time.) This includes fields that have a 9430126372Snjlminimum access width that is smaller than the parent region, and 9431126372Snjlindividual field units that are partially or entirely beyond the 9432126372Snjlextent of the parent. 9433102550Siwasaki 9434102550Siwasaki 9435102550Siwasaki 9436102550Siwasaki------------------------------------------ 9437102550SiwasakiSummary of changes for this label: 04_27_01 9438102550Siwasaki 9439102550Siwasaki ACPI CA Core Subsystem: 9440102550Siwasaki 9441193267SjkimFixed a problem where the namespace mutex could be released at the 9442126372Snjlwrong time during execution of AcpiRemoveAddressSpaceHandler. 9443102550Siwasaki 9444104470SiwasakiAdded optional thread ID output for debug traces, to simplify 9445114237Snjldebugging of multiple threads. Added context switch notification 9446114237Snjlwhen the debug code realizes that a different thread is now 9447114237Snjlexecuting ACPI code. 9448102550Siwasaki 9449114237SnjlSome additional external data types have been prefixed with the 9450114237Snjlstring "ACPI_" for consistency. This may effect existing code. 9451193267SjkimThe data types affected are the external callback typedefs - e.g., 9452167802Sjkim 9453126372SnjlWALK_CALLBACK becomes ACPI_WALK_CALLBACK. 9454102550Siwasaki 9455102550Siwasaki Linux: 9456102550Siwasaki 9457102550SiwasakiFixed an issue with the OSL semaphore implementation where a 9458102550Siwasakithread was waking up with an error from receiving a SIGCHLD 9459102550Siwasakisignal. 9460102550Siwasaki 9461114237SnjlLinux version of ACPI CA now uses the system C library for string 9462114237Snjlmanipulation routines instead of a local implementation. 9463102550Siwasaki 9464102550SiwasakiCleaned up comments and removed TBDs. 9465102550Siwasaki 9466102550Siwasaki ASL Compiler, version X2017: 9467102550Siwasaki 9468102550SiwasakiEnhanced error detection and reporting for all file I/O 9469102550Siwasakioperations. 9470102550Siwasaki 9471102550Siwasaki Documentation: 9472102550Siwasaki 9473102550SiwasakiProgrammer Reference updated to version 1.06. 9474102550Siwasaki 9475102550Siwasaki 9476102550Siwasaki 9477102550Siwasaki------------------------------------------ 9478102550SiwasakiSummary of changes for this label: 04_13_01 9479102550Siwasaki 9480102550Siwasaki ACPI CA Core Subsystem: 9481102550Siwasaki 9482102550SiwasakiRestructured support for BufferFields and RegionFields. 9483104470SiwasakiBankFields support is now fully operational. All known 32-bit 9484114237Snjllimitations on field sizes have been removed. Both BufferFields 9485114237Snjland (Operation) RegionFields are now supported by the same field 9486114237Snjlmanagement code. 9487102550Siwasaki 9488114237SnjlResource support now supports QWORD address and IO resources. The 9489114237Snjl16/32/64 bit address structures and the Extended IRQ structure 9490114237Snjlhave been changed to properly handle Source Resource strings. 9491102550Siwasaki 9492114237SnjlA ThreadId of -1 is now used to indicate a "mutex not acquired" 9493193267Sjkimcondition internally and must never be returned by AcpiOsThreadId. 9494126372SnjlThis reserved value was changed from 0 since Unix systems allow a 9495126372Snjlthread ID of 0. 9496102550Siwasaki 9497102550SiwasakiLinux: 9498102550Siwasaki 9499102550SiwasakiDriver code reorganized to enhance portability 9500102550Siwasaki 9501102550SiwasakiAdded a kernel configuration option to control ACPI_DEBUG 9502102550Siwasaki 9503102550SiwasakiFixed the EC driver to honor _GLK. 9504102550Siwasaki 9505102550SiwasakiASL Compiler, version X2016: 9506102550Siwasaki 9507114237SnjlFixed support for the "FixedHw" keyword. Previously, the FixedHw 9508114237Snjladdress space was set to 0, not 0x7f as it should be. 9509102550Siwasaki 9510102550Siwasaki ------------------------------------------ 9511102550SiwasakiSummary of changes for this label: 03_13_01 9512102550Siwasaki 9513102550Siwasaki ACPI CA Core Subsystem: 9514102550Siwasaki 9515104470SiwasakiDuring ACPI initialization, the _SB_._INI method is now run if 9516104470Siwasakipresent. 9517102550Siwasaki 9518193267SjkimNotify handler fix - notifies are deferred until the parent method 9519126372Snjlcompletes execution. This fixes the "mutex already acquired" 9520126372Snjlissue seen occasionally. 9521102550Siwasaki 9522104470SiwasakiPart of the "implicit conversion" rules in ACPI 2.0 have been 9523114237Snjlfound to cause compatibility problems with existing ASL/AML. The 9524114237Snjlconvert "result-to-target-type" implementation has been removed 9525114237Snjlfor stores to method Args and Locals. Source operand conversion 9526114237Snjlis still fully implemented. Possible changes to ACPI 2.0 9527114237Snjlspecification pending. 9528102550Siwasaki 9529104470SiwasakiFix to AcpiRsCalculatePciRoutingTableLength to return correct 9530104470Siwasakilength. 9531102550Siwasaki 9532102550SiwasakiFix for compiler warnings for 64-bit compiles. 9533102550Siwasaki 9534102550Siwasaki Linux: 9535102550Siwasaki 9536102550Siwasaki/proc output aligned for easier parsing. 9537102550Siwasaki 9538102550SiwasakiRelease-version compile problem fixed. 9539102550Siwasaki 9540104470SiwasakiNew kernel configuration options documented in Configure.help. 9541102550Siwasaki 9542102550SiwasakiIBM 600E - Fixed Sleep button may generate "Invalid <NULL> 9543102550Siwasakicontext" message. 9544102550Siwasaki 9545102550Siwasaki OSPM: 9546102550Siwasaki 9547102550SiwasakiPower resource driver integrated with bus manager. 9548102550Siwasaki 9549102550SiwasakiFixed kernel fault during active cooling for thermal zones. 9550102550Siwasaki 9551102550SiwasakiSource Code: 9552102550Siwasaki 9553102550SiwasakiThe source code tree has been restructured. 9554102550Siwasaki 9555102550Siwasaki 9556102550Siwasaki 9557102550Siwasaki------------------------------------------ 9558102550SiwasakiSummary of changes for this label: 03_02_01 9559102550Siwasaki 9560102550Siwasaki Linux OS Services Layer (OSL): 9561102550Siwasaki 9562102550SiwasakiMajor revision of all Linux-specific code. 9563102550Siwasaki 9564102550SiwasakiModularized all ACPI-specific drivers. 9565102550Siwasaki 9566102550SiwasakiAdded new thermal zone and power resource drivers. 9567102550Siwasaki 9568114237SnjlRevamped /proc interface (new functionality is under /proc/acpi). 9569102550Siwasaki 9570102550SiwasakiNew kernel configuration options. 9571102550Siwasaki 9572102550Siwasaki Linux known issues: 9573102550Siwasaki 9574114237SnjlNew kernel configuration options not documented in Configure.help 9575114237Snjlyet. 9576102550Siwasaki 9577114237Snjl 9578102550SiwasakiModule dependencies not currently implemented. If used, they 9579102550Siwasakishould be loaded in this order: busmgr, power, ec, system, 9580102550Siwasakiprocessor, battery, ac_adapter, button, thermal. 9581102550Siwasaki 9582102550SiwasakiModules will not load if CONFIG_MODVERSION is set. 9583102550Siwasaki 9584102550SiwasakiIBM 600E - entering S5 may reboot instead of shutting down. 9585102550Siwasaki 9586104470SiwasakiIBM 600E - Sleep button may generate "Invalid <NULL> context" 9587104470Siwasakimessage. 9588102550Siwasaki 9589104470SiwasakiSome systems may fail with "execution mutex already acquired" 9590104470Siwasakimessage. 9591102550Siwasaki 9592102550Siwasaki ACPI CA Core Subsystem: 9593102550Siwasaki 9594114237SnjlAdded a new OSL Interface, AcpiOsGetThreadId. This was required 9595193267Sjkimfor the deadlock detection code. Defined to return a non-zero, 32- 9596126372Snjlbit thread ID for the currently executing thread. May be a non- 9597126372Snjlzero constant integer on single-thread systems. 9598102550Siwasaki 9599193267SjkimImplemented deadlock detection for internal subsystem mutexes. We 9600126372Snjlmay add conditional compilation for this code (debug only) later. 9601102550Siwasaki 9602104470SiwasakiASL/AML Mutex object semantics are now fully supported. This 9603114237Snjlincludes multiple acquires/releases by owner and support for the 9604167802Sjkim 9605114237SnjlMutex SyncLevel parameter. 9606102550Siwasaki 9607102550SiwasakiA new "Force Release" mechanism automatically frees all ASL 9608104470SiwasakiMutexes that have been acquired but not released when a thread 9609114237Snjlexits the interpreter. This forces conformance to the ACPI spec 9610114237Snjl("All mutexes must be released when an invocation exits") and 9611114237Snjlprevents deadlocked ASL threads. This mechanism can be expanded 9612114237Snjl(later) to monitor other resource acquisitions if OEM ASL code 9613114237Snjlcontinues to misbehave (which it will). 9614102550Siwasaki 9615104470SiwasakiSeveral new ACPI exception codes have been added for the Mutex 9616104470Siwasakisupport. 9617102550Siwasaki 9618104470SiwasakiRecursive method calls are now allowed and supported (the ACPI 9619114237Snjlspec does in fact allow recursive method calls.) The number of 9620114237Snjlrecursive calls is subject to the restrictions imposed by the 9621114237SnjlSERIALIZED method keyword and SyncLevel (ACPI 2.0) method 9622104470Siwasakiparameter. 9623102550Siwasaki 9624102550SiwasakiImplemented support for the SyncLevel parameter for control 9625102550Siwasakimethods (ACPI 2.0 feature) 9626102550Siwasaki 9627114237SnjlFixed a deadlock problem when multiple threads attempted to use 9628114237Snjlthe interpreter. 9629102550Siwasaki 9630102550SiwasakiFixed a problem where the string length of a String package 9631102550Siwasakielement was not always set in a package returned from 9632102550SiwasakiAcpiEvaluateObject. 9633102550Siwasaki 9634114237SnjlFixed a problem where the length of a String package element was 9635114237Snjlnot always included in the length of the overall package returned 9636114237Snjlfrom AcpiEvaluateObject. 9637102550Siwasaki 9638102550SiwasakiAdded external interfaces (Acpi*) to the ACPI debug memory 9639102550Siwasakimanager. This manager keeps a list of all outstanding 9640193267Sjkimallocations, and can therefore detect memory leaks and attempts to 9641126372Snjlfree memory blocks more than once. Useful for code such as the 9642114237Snjlpower manager, etc. May not be appropriate for device drivers. 9643114237SnjlPerformance with the debug code enabled is slow. 9644102550Siwasaki 9645102550SiwasakiThe ACPI Global Lock is now an optional hardware element. 9646102550Siwasaki 9647102550Siwasaki ASL Compiler Version X2015: 9648102550Siwasaki 9649102550SiwasakiIntegrated changes to allow the compiler to be generated on 9650102550Siwasakimultiple platforms. 9651102550Siwasaki 9652102550SiwasakiLinux makefile added to generate the compiler on Linux 9653102550Siwasaki 9654102550Siwasaki Source Code: 9655102550Siwasaki 9656102550SiwasakiAll platform-specific headers have been moved to their own 9657102550Siwasakisubdirectory, Include/Platform. 9658102550Siwasaki 9659102550SiwasakiNew source file added, Interpreter/ammutex.c 9660102550Siwasaki 9661102550SiwasakiNew header file, Include/acstruct.h 9662102550Siwasaki 9663102550Siwasaki Documentation: 9664102550Siwasaki 9665114237SnjlThe programmer reference has been updated for the following new 9666114237Snjlinterfaces: AcpiOsGetThreadId AcpiAllocate AcpiCallocate AcpiFree 9667102550Siwasaki 9668102550Siwasaki ------------------------------------------ 9669102550SiwasakiSummary of changes for this label: 02_08_01 9670102550Siwasaki 9671102550SiwasakiCore ACPI CA Subsystem: Fixed a problem where an error was 9672193267Sjkimincorrectly returned if the return resource buffer was larger than 9673126372Snjlthe actual data (in the resource interfaces). 9674102550Siwasaki 9675114237SnjlReferences to named objects within packages are resolved to the 9676167802Sjkim 9677114237Snjlfull pathname string before packages are returned directly (via 9678114237Snjlthe AcpiEvaluateObject interface) or indirectly via the resource 9679114237Snjlinterfaces. 9680102550Siwasaki 9681102550SiwasakiLinux OS Services Layer (OSL): 9682102550Siwasaki 9683102550SiwasakiImproved /proc battery interface. 9684102550Siwasaki 9685102550Siwasaki 9686104470SiwasakiAdded C-state debugging output and other miscellaneous fixes. 9687102550Siwasaki 9688102550SiwasakiASL Compiler Version X2014: 9689102550Siwasaki 9690114237SnjlAll defined method arguments can now be used as local variables, 9691114237Snjlincluding the ones that are not actually passed in as parameters. 9692114237SnjlThe compiler tracks initialization of the arguments and issues an 9693114237Snjlexception if they are used without prior assignment (just like 9694114237Snjllocals). 9695102550Siwasaki 9696193267SjkimThe -o option now specifies a filename prefix that is used for all 9697126372Snjloutput files, including the AML output file. Otherwise, the 9698114237Snjldefault behavior is as follows: 1) the AML goes to the file 9699114237Snjlspecified in the DSDT. 2) all other output files use the input 9700114237Snjlsource filename as the base. 9701102550Siwasaki 9702102550Siwasaki ------------------------------------------ 9703102550SiwasakiSummary of changes for this label: 01_25_01 9704102550Siwasaki 9705114237SnjlCore ACPI CA Subsystem: Restructured the implementation of object 9706114237Snjlstore support within the interpreter. This includes support for 9707114237Snjlthe Store operator as well as any ASL operators that include a 9708114237Snjltarget operand. 9709102550Siwasaki 9710102550SiwasakiPartially implemented support for Implicit Result-to-Target 9711114237Snjlconversion. This is when a result object is converted on the fly 9712114237Snjlto the type of an existing target object. Completion of this 9713114237Snjlsupport is pending further analysis of the ACPI specification 9714114237Snjlconcerning this matter. 9715102550Siwasaki 9716114237SnjlCPU-specific code has been removed from the subsystem (hardware 9717114237Snjldirectory). 9718102550Siwasaki 9719102550SiwasakiNew Power Management Timer functions added 9720102550Siwasaki 9721114237SnjlLinux OS Services Layer (OSL): Moved system state transition code 9722114237Snjlto the core, fixed it, and modified Linux OSL accordingly. 9723102550Siwasaki 9724102550SiwasakiFixed C2 and C3 latency calculations. 9725102550Siwasaki 9726102550Siwasaki 9727114237SnjlWe no longer use the compilation date for the version message on 9728193267Sjkiminitialization, but retrieve the version from AcpiGetSystemInfo(). 9729102550Siwasaki 9730102550SiwasakiIncorporated for fix Sony VAIO machines. 9731102550Siwasaki 9732104470SiwasakiDocumentation: The Programmer Reference has been updated and 9733104470Siwasakireformatted. 9734102550Siwasaki 9735102550Siwasaki 9736102550SiwasakiASL Compiler: Version X2013: Fixed a problem where the line 9737102550Siwasakinumbering and error reporting could get out of sync in the 9738102550Siwasakipresence of multiple include files. 9739102550Siwasaki 9740102550Siwasaki ------------------------------------------ 9741102550SiwasakiSummary of changes for this label: 01_15_01 9742102550Siwasaki 9743102550SiwasakiCore ACPI CA Subsystem: 9744102550Siwasaki 9745114237SnjlImplemented support for type conversions in the execution of the 9746114237SnjlASL Concatenate operator (The second operand is converted to 9747114237Snjlmatch the type of the first operand before concatenation.) 9748102550Siwasaki 9749102550SiwasakiSupport for implicit source operand conversion is partially 9750114237Snjlimplemented. The ASL source operand types Integer, Buffer, and 9751114237SnjlString are freely interchangeable for most ASL operators and are 9752114237Snjlconverted by the interpreter on the fly as required. Implicit 9753114237SnjlTarget operand conversion (where the result is converted to the 9754114237Snjltarget type before storing) is not yet implemented. 9755102550Siwasaki 9756102550SiwasakiSupport for 32-bit and 64-bit BCD integers is implemented. 9757102550Siwasaki 9758193267SjkimProblem fixed where a field read on an aligned field could cause a 9759126372Snjlread past the end of the field. 9760102550Siwasaki 9761114237SnjlNew exception, AE_AML_NO_RETURN_VALUE, is returned when a method 9762114237Snjldoes not return a value, but the caller expects one. (The ASL 9763114237Snjlcompiler flags this as a warning.) 9764102550Siwasaki 9765102550SiwasakiASL Compiler: 9766102550Siwasaki 9767102550SiwasakiVersion X2011: 9768102550Siwasaki1. Static typechecking of all operands is implemented. This 9769193267Sjkimprevents the use of invalid objects (such as using a Package where 9770126372Snjlan Integer is required) at compile time instead of at interpreter 9771126372Snjlrun-time. 9772114237Snjl2. The ASL source line is printed with ALL errors and warnings. 9773102550Siwasaki3. Bug fix for source EOF without final linefeed. 9774193267Sjkim4. Debug option is split into a parse trace and a namespace trace. 9775102550Siwasaki5. Namespace output option (-n) includes initial values for 9776102550Siwasakiintegers and strings. 9777102550Siwasaki6. Parse-only option added for quick syntax checking. 9778102550Siwasaki7. Compiler checks for duplicate ACPI name declarations 9779102550Siwasaki 9780102550SiwasakiVersion X2012: 9781102550Siwasaki1. Relaxed typechecking to allow interchangeability between 9782114237Snjlstrings, integers, and buffers. These types are now converted by 9783114237Snjlthe interpreter at runtime. 9784114237Snjl2. Compiler reports time taken by each internal subsystem in the 9785114237Snjldebug output file. 9786102550Siwasaki 9787102550Siwasaki 9788102550Siwasaki ------------------------------------------ 9789102550SiwasakiSummary of changes for this label: 12_14_00 9790102550Siwasaki 9791102550SiwasakiASL Compiler: 9792102550Siwasaki 9793104470SiwasakiThis is the first official release of the compiler. Since the 9794104470Siwasakicompiler requires elements of the Core Subsystem, this label 9795104470Siwasakisynchronizes everything. 9796102550Siwasaki 9797102550Siwasaki------------------------------------------ 9798102550SiwasakiSummary of changes for this label: 12_08_00 9799102550Siwasaki 9800102550Siwasaki 9801114237SnjlFixed a problem where named references within the ASL definition 9802114237Snjlof both OperationRegions and CreateXXXFields did not work 9803114237Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9804114237Snjlinitialization of the region/field. This is similar (but not 9805114237Snjlrelated internally) to the problem that was fixed in the last 9806114237Snjllabel. 9807114237Snjl 9808102550SiwasakiImplemented both 32-bit and 64-bit support for the BCD ASL 9809102550Siwasakifunctions ToBCD and FromBCD. 9810102550Siwasaki 9811102550SiwasakiUpdated all legal headers to include "2000" in the copyright 9812102550Siwasakiyears. 9813102550Siwasaki 9814102550Siwasaki ------------------------------------------ 9815102550SiwasakiSummary of changes for this label: 12_01_00 9816102550Siwasaki 9817193267SjkimFixed a problem where method invocations within the ASL definition 9818126372Snjlof both OperationRegions and CreateXXXFields did not work 9819126372Snjlproperly. The symptom was an AE_AML_OPERAND_TYPE during 9820114237Snjlinitialization of the region/field: 9821102550Siwasaki 9822114237Snjl nsinit-0209: AE_AML_OPERAND_TYPE while getting region arguments 9823114237Snjl[DEBG] ammonad-0284: Exec_monadic2_r/Not: bad operand(s) 9824114237Snjl(0x3005) 9825102550Siwasaki 9826102550SiwasakiFixed a problem where operators with more than one nested 9827104470Siwasakisubexpression would fail. The symptoms were varied, by mostly 9828114237SnjlAE_AML_OPERAND_TYPE errors. This was actually a rather serious 9829114237Snjlproblem that has gone unnoticed until now. 9830102550Siwasaki 9831102550Siwasaki Subtract (Add (1,2), Multiply (3,4)) 9832102550Siwasaki 9833114237SnjlFixed a problem where AcpiGetHandle didn't quite get fixed in the 9834114237Snjlprevious build (The prefix part of a relative path was handled 9835114237Snjlincorrectly). 9836102550Siwasaki 9837114237SnjlFixed a problem where Operation Region initialization failed if 9838114237Snjlthe operation region name was a "namepath" instead of a simple 9839114237Snjl"nameseg". Symptom was an AE_NO_OPERAND error. 9840102550Siwasaki 9841114237SnjlFixed a problem where an assignment to a local variable via the 9842114237Snjlindirect RefOf mechanism only worked for the first such 9843102550Siwasakiassignment. Subsequent assignments were ignored. 9844102550Siwasaki 9845102550Siwasaki ------------------------------------------ 9846102550SiwasakiSummary of changes for this label: 11_15_00 9847102550Siwasaki 9848193267SjkimACPI 2.0 table support with backwards support for ACPI 1.0 and the 9849193267Sjkim0.71 extensions. Note: although we can read ACPI 2.0 BIOS tables, 9850126372Snjlthe AML interpreter does NOT have support for the new 2.0 ASL 9851126372Snjlgrammar terms at this time. 9852102550Siwasaki 9853193267SjkimAll ACPI hardware access is via the GAS structures in the ACPI 2.0 9854126372SnjlFADT. 9855102550Siwasaki 9856193267SjkimAll physical memory addresses across all platforms are now 64 bits 9857126372Snjlwide. Logical address width remains dependent on the platform 9858126372Snjl(i.e., "void *"). 9859102550Siwasaki 9860114237SnjlAcpiOsMapMemory interface changed to a 64-bit physical address. 9861102550Siwasaki 9862114237SnjlThe AML interpreter integer size is now 64 bits, as per the ACPI 9863114237Snjl2.0 specification. 9864102550Siwasaki 9865104470SiwasakiFor backwards compatibility with ACPI 1.0, ACPI tables with a 9866104470Siwasakirevision number less than 2 use 32-bit integers only. 9867102550Siwasaki 9868114237SnjlFixed a problem where the evaluation of OpRegion operands did not 9869114237Snjlalways resolve them to numbers properly. 9870102550Siwasaki 9871102550Siwasaki------------------------------------------ 9872102550SiwasakiSummary of changes for this label: 10_20_00 9873102550Siwasaki 9874114237SnjlFix for CBN_._STA issue. This fix will allow correct access to 9875114237SnjlCBN_ OpRegions when the _STA returns 0x8. 9876102550Siwasaki 9877104470SiwasakiSupport to convert ACPI constants (Ones, Zeros, One) to actual 9878104470Siwasakivalues before a package object is returned 9879102550Siwasaki 9880104470SiwasakiFix for method call as predicate to if/while construct causing 9881104470Siwasakiincorrect if/while behavior 9882102550Siwasaki 9883114237SnjlFix for Else block package lengths sometimes calculated wrong (if 9884114237Snjlblock > 63 bytes) 9885102550Siwasaki 9886102550SiwasakiFix for Processor object length field, was always zero 9887102550Siwasaki 9888102550SiwasakiTable load abort if FACP sanity check fails 9889102550Siwasaki 9890102550SiwasakiFix for problem with Scope(name) if name already exists 9891102550Siwasaki 9892102550SiwasakiWarning emitted if a named object referenced cannot be found 9893102550Siwasaki(resolved) during method execution. 9894102550Siwasaki 9895102550Siwasaki 9896102550Siwasaki 9897102550Siwasaki 9898102550Siwasaki 9899102550Siwasaki------------------------------------------ 9900102550SiwasakiSummary of changes for this label: 9_29_00 9901102550Siwasaki 9902114237SnjlNew table initialization interfaces: AcpiInitializeSubsystem no 9903114237Snjllonger has any parameters AcpiFindRootPointer - Find the RSDP (if 9904114237Snjlnecessary) AcpiLoadTables (RSDP) - load all tables found at RSDP- 9905114237Snjl>RSDT Obsolete Interfaces AcpiLoadFirmwareTables - replaced by 9906114237SnjlAcpiLoadTables 9907102550Siwasaki 9908193267SjkimNote: These interface changes require changes to all existing OSDs 9909102550Siwasaki 9910114237SnjlThe PCI_Config default address space handler is always installed 9911114237Snjlat the root namespace object. 9912102550Siwasaki 9913102550Siwasaki------------------------------------------- 9914102550SiwasakiSummary of changes for this label: 09_15_00 9915102550Siwasaki 9916102550SiwasakiThe new initialization architecture is implemented. New 9917114237Snjlinterfaces are: AcpiInitializeSubsystem (replaces AcpiInitialize) 9918114237SnjlAcpiEnableSubsystem Obsolete Interfaces: AcpiLoadNamespace 9919167802Sjkim 9920114237Snjl(Namespace is automatically loaded when a table is loaded) 9921102550Siwasaki 9922193267SjkimThe ACPI_OPERAND_OBJECT has been optimized to shrink its size from 9923126372Snjl52 bytes to 32 bytes. There is usually one of these for every 9924126372Snjlnamespace object, so the memory savings is significant. 9925102550Siwasaki 9926114237SnjlImplemented just-in-time evaluation of the CreateField operators. 9927102550Siwasaki 9928102550SiwasakiBug fixes for IA-64 support have been integrated. 9929102550Siwasaki 9930102550SiwasakiAdditional code review comments have been implemented 9931102550Siwasaki 9932193267SjkimThe so-called "third pass parse" has been replaced by a final walk 9933193267Sjkimthrough the namespace to initialize all operation regions (address 9934126372Snjlspaces) and fields that have not yet been initialized during the 9935126372Snjlexecution of the various _INI and REG methods. 9936102550Siwasaki 9937102550SiwasakiNew file - namespace/nsinit.c 9938102550Siwasaki 9939102550Siwasaki------------------------------------------- 9940102550SiwasakiSummary of changes for this label: 09_01_00 9941102550Siwasaki 9942193267SjkimNamespace manager data structures have been reworked to change the 9943126372Snjlprimary object from a table to a single object. This has 9944193267Sjkimresulted in dynamic memory savings of 3X within the namespace and 9945126372Snjl2X overall in the ACPI CA subsystem. 9946102550Siwasaki 9947102550SiwasakiFixed problem where the call to AcpiEvFindPciRootBuses was 9948102550Siwasakiinadvertently left commented out. 9949102550Siwasaki 9950114237SnjlReduced the warning count when generating the source with the GCC 9951114237Snjlcompiler. 9952102550Siwasaki 9953102550SiwasakiRevision numbers added to each module header showing the 9954104470SiwasakiSourceSafe version of the file. Please refer to this version 9955114237Snjlnumber when giving us feedback or comments on individual modules. 9956102550Siwasaki 9957114237SnjlThe main object types within the subsystem have been renamed to 9958114237Snjlclarify their purpose: 9959102550Siwasaki 9960102550SiwasakiACPI_INTERNAL_OBJECT -> ACPI_OPERAND_OBJECT 9961102550SiwasakiACPI_GENERIC_OP -> ACPI_PARSE_OBJECT 9962102550SiwasakiACPI_NAME_TABLE_ENTRY -> ACPI_NAMESPACE_NODE 9963102550Siwasaki 9964114237SnjlNOTE: no changes to the initialization sequence are included in 9965114237Snjlthis label. 9966102550Siwasaki 9967102550Siwasaki------------------------------------------- 9968102550SiwasakiSummary of changes for this label: 08_23_00 9969102550Siwasaki 9970102550SiwasakiFixed problem where TerminateControlMethod was being called 9971102550Siwasakimultiple times per method 9972102550Siwasaki 9973193267SjkimFixed debugger problem where single stepping caused a semaphore to 9974126372Snjlbe oversignalled 9975102550Siwasaki 9976104470SiwasakiImproved performance through additional parse object caching - 9977104470Siwasakiadded ACPI_EXTENDED_OP type 9978102550Siwasaki 9979102550Siwasaki------------------------------------------- 9980102550SiwasakiSummary of changes for this label: 08_10_00 9981102550Siwasaki 9982102550SiwasakiParser/Interpreter integration: Eliminated the creation of 9983102550Siwasakicomplete parse trees for ACPI tables and control methods. 9984114237SnjlInstead, parse subtrees are created and then deleted as soon as 9985193267Sjkimthey are processed (Either entered into the namespace or executed 9986126372Snjlby the interpreter). This reduces the use of dynamic kernel 9987126372Snjlmemory significantly. (about 10X) 9988102550Siwasaki 9989114237SnjlException codes broken into classes and renumbered. Be sure to 9990114237Snjlrecompile all code that includes acexcep.h. Hopefully we won't 9991114237Snjlhave to renumber the codes again now that they are split into 9992114237Snjlclasses (environment, programmer, AML code, ACPI table, and 9993114237Snjlinternal). 9994102550Siwasaki 9995104470SiwasakiFixed some additional alignment issues in the Resource Manager 9996104470Siwasakisubcomponent 9997102550Siwasaki 9998114237SnjlImplemented semaphore tracking in the AcpiExec utility, and fixed 9999114237Snjlseveral places where mutexes/semaphores were being unlocked 10000114237Snjlwithout a corresponding lock operation. There are no known 10001114237Snjlsemaphore or mutex "leaks" at this time. 10002102550Siwasaki 10003114237SnjlFixed the case where an ASL Return operator is used to return an 10004114237Snjlunnamed package. 10005102550Siwasaki 10006102550Siwasaki------------------------------------------- 10007102550SiwasakiSummary of changes for this label: 07_28_00 10008102550Siwasaki 10009102550SiwasakiFixed a problem with the way addresses were calculated in 10010114237SnjlAcpiAmlReadFieldData() and AcpiAmlWriteFieldData(). This problem 10011114237Snjlmanifested itself when a Field was created with WordAccess or 10012193267SjkimDwordAccess, but the field unit defined within the Field was less 10013167802Sjkim 10014126372Snjlthan a Word or Dword. 10015102550Siwasaki 10016102550SiwasakiFixed a problem in AmlDumpOperands() module's loop to pull 10017104470Siwasakioperands off of the operand stack to display information. The 10018114237Snjlproblem manifested itself as a TLB error on 64-bit systems when 10019114237Snjlaccessing an operand stack with two or more operands. 10020102550Siwasaki 10021114237SnjlFixed a problem with the PCI configuration space handlers where 10022114237Snjlcontext was getting confused between accesses. This required a 10023114237Snjlchange to the generic address space handler and address space 10024193267Sjkimsetup definitions. Handlers now get both a global handler context 10025126372Snjl(this is the one passed in by the user when executing 10026114237SnjlAcpiInstallAddressSpaceHandler() and a specific region context 10027114237Snjlthat is unique to each region (For example, the _ADR, _SEG and 10028114237Snjl_BBN values associated with a specific region). The generic 10029114237Snjlfunction definitions have changed to the following: 10030102550Siwasaki 10031114237Snjltypedef ACPI_STATUS (*ADDRESS_SPACE_HANDLER) ( UINT32 Function, 10032114237SnjlUINT32 Address, UINT32 BitWidth, UINT32 *Value, void 10033104470Siwasaki*HandlerContext, // This used to be void *Context void 10034102550Siwasaki*RegionContext); // This is an additional parameter 10035102550Siwasaki 10036102550Siwasakitypedef ACPI_STATUS (*ADDRESS_SPACE_SETUP) ( ACPI_HANDLE 10037102550SiwasakiRegionHandle, UINT32 Function, void *HandlerContext, void 10038102550Siwasaki**RegionContext); // This used to be **ReturnContext 10039102550Siwasaki 10040102550Siwasaki------------------------------------------- 10041102550SiwasakiSummary of changes for this label: 07_21_00 10042102550Siwasaki 10043102550SiwasakiMajor file consolidation and rename. All files within the 10044193267Sjkiminterpreter have been renamed as well as most header files. This 10045126372Snjlwas done to prevent collisions with existing files in the host 10046126372SnjlOSs -- filenames such as "config.h" and "global.h" seem to be 10047126372Snjlquite common. The VC project files have been updated. All 10048114237Snjlmakefiles will require modification. 10049102550Siwasaki 10050114237SnjlThe parser/interpreter integration continues in Phase 5 with the 10051114237Snjlimplementation of a complete 2-pass parse (the AML is parsed 10052114237Snjltwice) for each table; This avoids the construction of a huge 10053114237Snjlparse tree and therefore reduces the amount of dynamic memory 10054114237Snjlrequired by the subsystem. Greater use of the parse object cache 10055114237Snjlmeans that performance is unaffected. 10056102550Siwasaki 10057102550SiwasakiMany comments from the two code reviews have been rolled in. 10058102550Siwasaki 10059102550SiwasakiThe 64-bit alignment support is complete. 10060102550Siwasaki 10061102550Siwasaki------------------------------------------- 10062102550SiwasakiSummary of changes for this label: 06_30_00 10063102550Siwasaki 10064114237SnjlWith a nod and a tip of the hat to the technology of yesteryear, 10065114237Snjlwe've added support in the source code for 80 column output 10066114237Snjldevices. The code is now mostly constrained to 80 columns or 10067114237Snjlless to support environments and editors that 1) cannot display 10068114237Snjlor print more than 80 characters on a single line, and 2) cannot 10069114237Snjldisable line wrapping. 10070102550Siwasaki 10071104470SiwasakiA major restructuring of the namespace data structure has been 10072104470Siwasakicompleted. The result is 1) cleaner and more 10073114237Snjlunderstandable/maintainable code, and 2) a significant reduction 10074114237Snjlin the dynamic memory requirement for each named ACPI object 10075114237Snjl(almost half). 10076102550Siwasaki 10077102550Siwasaki------------------------------------------- 10078102550SiwasakiSummary of changes for this label: 06_23_00 10079102550Siwasaki 10080114237SnjlLinux support has been added. In order to obtain approval to get 10081114237Snjlthe ACPI CA subsystem into the Linux kernel, we've had to make 10082114237Snjlquite a few changes to the base subsystem that will affect all 10083114237Snjlusers (all the changes are generic and OS- independent). The 10084114237Snjleffects of these global changes have been somewhat far reaching. 10085114237SnjlFiles have been merged and/or renamed and interfaces have been 10086114237Snjlrenamed. The major changes are described below. 10087102550Siwasaki 10088102550SiwasakiOsd* interfaces renamed to AcpiOs* to eliminate namespace 10089102550Siwasakipollution/confusion within our target kernels. All OSD 10090114237Snjlinterfaces must be modified to match the new naming convention. 10091102550Siwasaki 10092193267SjkimFiles merged across the subsystem. A number of the smaller source 10093126372Snjland header files have been merged to reduce the file count and 10094126372Snjlincrease the density of the existing files. There are too many 10095126372Snjlto list here. In general, makefiles that call out individual 10096126372Snjlfiles will require rebuilding. 10097102550Siwasaki 10098104470SiwasakiInterpreter files renamed. All interpreter files now have the 10099104470Siwasakiprefix am* instead of ie* and is*. 10100102550Siwasaki 10101104470SiwasakiHeader files renamed: The acapi.h file is now acpixf.h. The 10102114237Snjlacpiosd.h file is now acpiosxf.h. We are removing references to 10103114237Snjlthe acronym "API" since it is somewhat windowsy. The new name is 10104114237Snjl"external interface" or xface or xf in the filenames.j 10105102550Siwasaki 10106102550Siwasaki 10107114237SnjlAll manifest constants have been forced to upper case (some were 10108193267Sjkimmixed case.) Also, the string "ACPI_" has been prepended to many 10109126372Snjl(not all) of the constants, typedefs, and structs. 10110102550Siwasaki 10111102550SiwasakiThe globals "DebugLevel" and "DebugLayer" have been renamed 10112102550Siwasaki"AcpiDbgLevel" and "AcpiDbgLayer" respectively. 10113102550Siwasaki 10114102550SiwasakiAll other globals within the subsystem are now prefixed with 10115102550Siwasaki"AcpiGbl_" Internal procedures within the subsystem are now 10116114237Snjlprefixed with "Acpi" (with only a few exceptions). The original 10117193267Sjkimtwo-letter abbreviation for the subcomponent remains after "Acpi" 10118126372Snjl- for example, CmCallocate became AcpiCmCallocate. 10119102550Siwasaki 10120102550SiwasakiAdded a source code translation/conversion utility. Used to 10121114237Snjlgenerate the Linux source code, it can be modified to generate 10122114237Snjlother types of source as well. Can also be used to cleanup 10123114237Snjlexisting source by removing extraneous spaces and blank lines. 10124114237SnjlFound in tools/acpisrc/* 10125102550Siwasaki 10126102550SiwasakiOsdUnMapMemory was renamed to OsdUnmapMemory and then 10127102550SiwasakiAcpiOsUnmapMemory. (UnMap became Unmap). 10128102550Siwasaki 10129114237SnjlA "MaxUnits" parameter has been added to AcpiOsCreateSemaphore. 10130114237SnjlWhen set to one, this indicates that the caller wants to use the 10131167802Sjkim 10132114237Snjlsemaphore as a mutex, not a counting semaphore. ACPI CA uses 10133114237Snjlboth types. However, implementers of this call may want to use 10134114237Snjldifferent OS primitives depending on the type of semaphore 10135114237Snjlrequested. For example, some operating systems provide separate 10136167802Sjkim 10137193267Sjkim"mutex" and "semaphore" interfaces - where the mutex interface is 10138126372Snjlmuch faster because it doesn't have all the overhead of a full 10139126372Snjlsemaphore implementation. 10140102550Siwasaki 10141104470SiwasakiFixed a deadlock problem where a method that accesses the PCI 10142114237Snjladdress space can block forever if it is the first access to the 10143114237Snjlspace. 10144102550Siwasaki 10145102550Siwasaki------------------------------------------- 10146102550SiwasakiSummary of changes for this label: 06_02_00 10147102550Siwasaki 10148102550SiwasakiSupport for environments that cannot handle unaligned data 10149114237Snjlaccesses (e.g. firmware and OS environments devoid of alignment 10150193267Sjkimhandler technology namely SAL/EFI and the IA-64 Linux kernel) has 10151126372Snjlbeen added (via configurable macros) in these three areas: - 10152114237SnjlTransfer of data from the raw AML byte stream is done via byte 10153193267Sjkimmoves instead of word/dword/qword moves. - External objects are 10154126372Snjlaligned within the user buffer, including package elements (sub- 10155193267Sjkimobjects). - Conversion of name strings to UINT32 Acpi Names is now 10156126372Snjldone byte-wise. 10157102550Siwasaki 10158102550SiwasakiThe Store operator was modified to mimic Microsoft's 10159102550Siwasakiimplementation when storing to a Buffer Field. 10160102550Siwasaki 10161102550SiwasakiAdded a check of the BM_STS bit before entering C3. 10162102550Siwasaki 10163114237SnjlThe methods subdirectory has been obsoleted and removed. A new 10164114237Snjlfile, cmeval.c subsumes the functionality. 10165102550Siwasaki 10166102550SiwasakiA 16-bit (DOS) version of AcpiExec has been developed. The 10167102550Siwasakimakefile is under the acpiexec directory. 10168