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diff --git a/changes.txt b/changes.txt index d797dedb6ab2d..19f5c0d621b31 100644 --- a/changes.txt +++ b/changes.txt @@ -1,4 +1,99 @@ ---------------------------------------- +22 April 2016. Summary of changes for version 20160422: + +1) ACPICA kernel-resident subsystem: + +Fixed a regression in the GAS (generic address structure) arbitrary bit +support in AcpiHwRead/AcpiHwWrite. Problem could cause incorrect behavior +and incorrect return values. Lv Zheng. ACPICA BZ 1270. + +ACPI 6.0: Added support for new/renamed resource macros. One new argument +was added to each of these macros, and the original name has been +deprecated. The AML disassembler will always disassemble to the new +names. Support for the new macros was added to iASL, disassembler, +resource manager, and the acpihelp utility. ACPICA BZ 1274. + + I2cSerialBus -> I2cSerialBusV2 + SpiSerialBus -> SpiSerialBusV2 + UartSerialBus -> UartSerialBusV2 + +ACPI 6.0: Added support for a new integer field that was appended to the +package object returned by the _BIX method. This adds iASL compile-time +and AML runtime error checking. ACPICA BZ 1273. + +ACPI 6.1: Added support for a new PCCT subtable, "HW-Reduced Comm +Subspace Type2" (Headers, Disassembler, and data table compiler). + +Example Code and Data Size: These are the sizes for the OS-independent +acpica.lib produced by the Microsoft Visual C++ 9.0 32-bit compiler. The +debug version of the code includes the debug output trace mechanism and +has a much larger code and data size. + + Current Release: + Non-Debug Version: 137.4K Code, 52.6K Data, 190.0K Total + Debug Version: 201.5K Code, 82.2K Data, 283.7K Total + Previous Release: + Non-Debug Version: 137.1K Code, 51.5K Data, 188.6K Total + Debug Version: 201.0K Code, 82.0K Data, 283.0K Total + + +2) iASL Compiler/Disassembler and Tools: + +iASL: Implemented an ASL grammar extension to allow/enable executable +"module-level code" to be created and executed under the various +operators that create new scopes. This type of AML code is already +supported in all known AML interpreters, and the grammar change will +appear in the next version of the ACPI specification. Simplifies the +conditional runtime creation of named objects under these object types: + + Device + PowerResource + Processor + Scope + ThermalZone + +iASL: Implemented a new ASL extension, a "For" loop macro to add greater +ease-of-use to the ASL language. The syntax is similar to the +corresponding C operator, and is implemented with the existing AML While +opcode -- thus requiring no changes to existing AML interpreters. + + For (Initialize, Predicate, Update) {TermList} + +Grammar: + ForTerm := + For ( + Initializer // Nothing | TermArg => ComputationalData + Predicate // Nothing | TermArg => ComputationalData + Update // Nothing | TermArg => ComputationalData + ) {TermList} + + +iASL: The _HID/_ADR detection and validation has been enhanced to search +under conditionals in order to allow these objects to be conditionally +created at runtime. + +iASL: Fixed several issues with the constant folding feature. The +improvement allows better detection and resolution of statements that can +be folded at compile time. ACPICA BZ 1266. + +iASL/Disassembler: Fixed a couple issues with the Else{If{}...} +conversion to the ASL ElseIf operator where incorrect ASL code could be +generated. + +iASL/Disassembler: Fixed a problem with the ASL+ code disassembly where +sometimes an extra (and extraneous) set of parentheses were emitted for +some combinations of operators. Although this did not cause any problems +with recompilation of the disassembled code, it made the code more +difficult to read. David Box. ACPICA BZ 1231. + +iASL: Changed to ignore the unreferenced detection for predefined names +of resource descriptor elements, when the resource descriptor is +created/defined within a control method. + +iASL: Disassembler: Fix a possible fault with externally declared Buffer +objects. + +---------------------------------------- 18 March 2016. Summary of changes for version 20160318: 1) ACPICA kernel-resident subsystem: |