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Diffstat (limited to 'sys/contrib/dev/acpica/changes.txt')
| -rw-r--r-- | sys/contrib/dev/acpica/changes.txt | 550 |
1 files changed, 548 insertions, 2 deletions
diff --git a/sys/contrib/dev/acpica/changes.txt b/sys/contrib/dev/acpica/changes.txt index ff863a7..18b43b8 100644 --- a/sys/contrib/dev/acpica/changes.txt +++ b/sys/contrib/dev/acpica/changes.txt @@ -1,7 +1,553 @@ ---------------------------------------- -27 May 2016. Summary of changes for version 20160527: +03 March 2017. Summary of changes for version 20170303: -This release is available at https://acpica.org/downloads + +0) ACPICA licensing: + +The licensing information at the start of each source code module has +been updated. In addition to the Intel license, the dual GPLv2/BSD +license has been added for completeness. Now, a single version of the +source code should be suitable for all ACPICA customers. This is the +major change for this release since it affects all source code modules. + + +1) ACPICA kernel-resident subsystem: + +Fixed two issues with the common asltypes.h header that could cause +problems in some environments: (Kim Jung-uk) + Removed typedef for YY_BUFFER_STATE ? + Fixes an error with earlier versions of Flex. + Removed use of FILE typedef (which is only defined in stdio.h) + + +2) iASL Compiler/Disassembler and Tools: + +Disassembler: fixed a regression introduced in 20170224. A fix for a +memory leak related to resource descriptor tags (names) could fault when +the disassembler was generated with 64-bit compilers. + +The ASLTS test suite has been updated to implement a new testing +architecture. During generation of the suite from ASL source, both the +ASL and ASL+ compilers are now validated, as well as the disassembler +itself (Erik Schmauss). The architecture executes as follows: + + For every ASL source module: + Compile (legacy ASL compilation) + Disassemble the resulting AML to ASL+ source code + Compile the new ASL+ module + Perform a binary compare on the legacy AML and the new ASL+ AML + The ASLTS suite then executes normally using the AML binaries. + +---------------------------------------- +24 February 2017. Summary of changes for version 20170224: + + +1) ACPICA kernel-resident subsystem: + +Interpreter: Fixed two issues with the control method return value auto- +repair feature, where an attempt to double-delete an internal object +could result in an ACPICA warning (for _CID repair and others). No fault +occurs, however, because the attempted deletion (actually a release to an +internal cache) is detected and ignored via object poisoning. + +Debugger: Fixed an AML interpreter mutex issue during the single stepping +of control methods. If certain debugger commands are executed during +stepping, a mutex aquire/release error could occur. Lv Zheng. + +Fixed some issues generating ACPICA with the Intel C compiler by +restoring the original behavior and compiler-specific include file in +acenv.h. Lv Zheng. + +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: 141.7K Code, 58.5K Data, 200.2K Total + Debug Version: 207.5K Code, 82.7K Data, 290.2K Total + Previous Release: + Non-Debug Version: 137.4K Code, 52.6K Data, 190.0K Total + Debug Version: 201.5K Code, 82.2K Data, 283.7K Total + + +2) iASL Compiler/Disassembler and Tools: + +iASL/Disassembler: A preliminary version of a new ASL-to-ASL+ conversion +tool has been designed, implemented, and included in this release. The +key feature of this utility is that the original comments within the +input ASL file are preserved during the conversion process, and included +within the converted ASL+ file -- thus creating a transparent conversion +of existing ASL files to ASL+ (ASL 2.0). Erik Schmauss. + + Usage: iasl -ca <ASL-filename> // Output is a .dsl file with +converted code + +iASL/Disassembler: Improved the detection and correct disassembly of +Switch/Case operators. This feature detects sequences of if/elseif/else +operators that originated from ASL Switch/Case/Default operators and +emits the original operators. David Box. + +iASL: Improved the IORT ACPI table support in the following areas. Lv +Zheng: + Clear MappingOffset if the MappingCount is zero. + Fix the disassembly of the SMMU GSU interrupt offset. + Update the template file for the IORT table. + +Disassembler: Enhanced the detection and disassembly of resource +template/descriptor within a Buffer object. An EndTag descriptor is now +required to have a zero second byte, since all known ASL compilers emit +this. This helps eliminate incorrect decisions when a buffer is +disassembled (false positives on resource templates). + +---------------------------------------- +19 January 2017. Summary of changes for version 20170119: + + +1) General ACPICA software: + +Entire source code base: Added the 2017 copyright to all source code +legal/licensing module headers and utility/tool signons. This includes +the standard Linux dual-license header. This affects virtually every file +in the ACPICA core subsystem, iASL compiler, all ACPICA utilities, and +the ACPICA test suite. + + +2) iASL Compiler/Disassembler and Tools: + +iASL: Removed/fixed an inadvertent remark when a method argument +containing a reference is used as a target operand within the method (and +never used as a simple argument), as in the example below. Jeffrey Hugo. + + dsdt.asl 1507: Store(0x1, Arg0) + Remark 2146 - ^ Method Argument is never used (Arg0) + +All tools: Removed the bit width of the compiler that generated the tool +from the common signon for all user space tools. This proved to be +confusing and unnecessary. This includes similar removal of HARDWARE_NAME +from the generic makefiles (Thomas Petazzoni). Example below. + + Old: + ASL+ Optimizing Compiler version 20170119-32 + ASL+ Optimizing Compiler version 20170119-64 + + New: + ASL+ Optimizing Compiler version 20170119 + +---------------------------------------- +22 December 2016. Summary of changes for version 20161222: + + +1) ACPICA kernel-resident subsystem: + +AML Debugger: Implemented a new mechanism to simplify and enhance +debugger integration into all environments, including kernel debuggers +and user-space utilities, as well as remote debug services. This +mechanism essentially consists of new OSL interfaces to support debugger +initialization/termination, as well as wait/notify interfaces to perform +the debugger handshake with the host. Lv Zheng. + + New OSL interfaces: + AcpiOsInitializeDebugger (void) + AcpiOsTerminateDebugger (void) + AcpiOsWaitCommandReady (void) + AcpiOsNotifyCommandComplete (void) + + New OS services layer: + osgendbg.c -- Example implementation, and used for AcpiExec + +Update for Generic Address Space (GAS) support: Although the AccessWidth +and/or BitOffset fields of the GAS are not often used, this change now +fully supports these fields. This affects the internal support for FADT +registers, registers in other ACPI data tables, and the AcpiRead and +AcpiWrite public interfaces. Lv Zheng. + +Sleep support: In order to simplify integration of ACPI sleep for the +various host operating systems, a new OSL interface has been introduced. +AcpiOsEnterSleep allows the host to perform any required operations +before the final write to the sleep control register(s) is performed by +ACPICA. Lv Zheng. + + New OSL interface: + AcpiOsEnterSleep(SleepState, RegisterAValue, RegisterBValue) + + Called from these internal interfaces: + AcpiHwLegacySleep + AcpiHwExtendedSleep + +EFI support: Added a very small EFI/ACPICA example application. Provides +a simple demo for EFI integration, as well as assisting with resolution +of issues related to customer ACPICA/EFI integration. Lv Zheng. See: + + source/tools/efihello/efihello.c + +Local C library: Implemented several new functions to enhance ACPICA +portability, for environments where these clib functions are not +available (such as EFI). Lv Zheng: + putchar + getchar + strpbrk + strtok + memmove + +Fixed a regression where occasionally a valid resource descriptor was +incorrectly detected as invalid at runtime, and a +AE_AML_NO_RESOURCE_END_TAG was returned. + +Fixed a problem with the recently implemented support that enables +control method invocations as Target operands to many ASL operators. +Warnings of this form: "Needed type [Reference], found [Processor]" were +seen at runtime for some method invocations. + +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: 141.5K Code, 58.5K Data, 200.0K Total + Debug Version: 201.7K Code, 82.7K Data, 284.4K Total + Previous Release: + Non-Debug Version: 140.5K Code, 58.5K Data, 198.9K Total + Debug Version: 201.3K Code, 82.7K Data, 284.0K Total + + +2) iASL Compiler/Disassembler and Tools: + +Disassembler: Enhanced output by adding the capability to detect and +disassemble ASL Switch/Case statements back to the original ASL source +code instead of if/else blocks. David Box. + +AcpiHelp: Split a large file into separate files based upon +functionality/purpose. New files are: + ahaml.c + ahasl.c + +---------------------------------------- +17 November 2016. Summary of changes for version 20161117: + + +1) ACPICA kernel-resident subsystem: + +Table Manager: Fixed a regression introduced in 20160729, "FADT support +cleanup". This was an attempt to remove all references in the source to +the FADT version 2, which never was a legal version number. It was +skipped because it was an early version of 64-bit support that was +eventually abandoned for the current 64-bit support. + +Interpreter: Fixed a problem where runtime implicit conversion was +incorrectly disabled for the ASL operators below. This brings the +behavior into compliance with the ACPI specification: + FromBCD + ToBCD + ToDecimalString + ToHexString + ToInteger + ToBuffer + +Table Manager: Added a new public interface, AcpiPutTable, used to +release and free an ACPI table returned by AcpiGetTable and related +interfaces. Lv Zheng. + +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: 140.5K Code, 58.5K Data, 198.9K Total + Debug Version: 201.3K Code, 82.7K Data, 284.0K Total + Previous Release: + Non-Debug Version: 140.4K Code, 58.1K Data, 198.5K Total + Debug Version: 200.7K Code, 82.1K Data, 282.8K Total + + +2) iASL Compiler/Disassembler and Tools: + +Disassembler: Fixed a regression for disassembly of Resource Template. +Detection of templates in the AML stream missed some types of templates. + +iASL: Fixed a problem where an Access Size error was returned for the PCC +address space when the AccessSize of the GAS register is greater than a +DWORD. Hoan Tran. + +iASL: Implemented several grammar changes for the operators below. These +changes are slated for the next version of the ACPI specification: + RefOf - Disallow method invocation as an operand + CondRefOf - Disallow method invocation as an operand + DerefOf - Disallow operands that use the result from operators +that + do not return a reference (Changed TermArg to +SuperName). + +iASL: Control method invocations are now allowed for Target operands, as +per the ACPI specification. Removed error for using a control method +invocation as a Target operand. + +Disassembler: Improved detection of Resource Templates, Unicode, and +Strings within Buffer objects. These subtypes do not contain a specific +opcode to indicate the originating ASL code, and they must be detected by +other means within the disassembler. + +iASL: Implemented an optimization improvement for 32-bit ACPI tables +(DSDT/SSDT). For the 32-bit case only, compute the optimum integer opcode +only after 64-bit to 32-bit truncation. A truncation warning message is +still emitted, however. + +AcpiXtract: Implemented handling for both types of line terminators (LF +or CR/LF) so that it can accept AcpiDump output files from any system. +Peter Wu. + +AcpiBin: Added two new options for comparing AML files: + -a: compare and display ALL mismatches + -o: start compare at this offset into the second file + +---------------------------------------- +30 September 2016. Summary of changes for version 20160930: + + +1) ACPICA kernel-resident subsystem: + +Fixed a regression in the internal AcpiTbFindTable function where a non +AE_OK exception could inadvertently be returned even if the function did +not fail. This problem affects the following operators: + DataTableRegion + LoadTable + +Fixed a regression in the LoadTable operator where a load to any +namespace location other than the root no longer worked properly. + +Increased the maximum loop count value that will result in the +AE_AML_INFINITE_LOOP exception. This is a mechanism that is intended to +prevent infinite loops within the AML interpreter and thus the host OS +kernel. The value is increased from 0xFFFF to 0xFFFFF loops (65,535 to +1,048,575). + +Moved the AcpiGbl_MaxLoopIterations configuration variable to the public +acpixf.h file. This allows hosts to easily configure the maximum loop +count at runtime. + +Removed an illegal character in the strtoul64.c file. This character +caused errors with some C compilers. + +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: 140.4K Code, 58.1K Data, 198.5K Total + Debug Version: 200.7K Code, 82.1K Data, 282.8K Total + Previous Release: + Non-Debug Version: 140.0K Code, 58.1K Data, 198.1K Total + Debug Version: 200.3K Code, 82.1K Data, 282.4K Total + + +2) iASL Compiler/Disassembler and Tools: + +Disassembler: Fixed a problem with the conversion of Else{If{ blocks into +the simpler ASL ElseIf keyword. During the conversion, a trailing If +block could be lost and missing from the disassembled output. + +iASL: Fixed a missing parser rule for the ObjectType operator. For ASL+, +the missing rule caused a parse error when using the Index operator as an +operand to ObjectType. This construct now compiles properly. Example: + ObjectType(PKG1[4]). + +iASL: Correctly handle unresolved symbols in the hardware map file (-lm +option). Previously, unresolved symbols could cause a protection fault. +Such symbols are now marked as unresolved in the map file. + +iASL: Implemented support to allow control method invocations as an +operand to the ASL DeRefOf operator. Example: + DeRefOf(MTH1(Local0)) + +Disassembler: Improved support for the ToPLD ASL macro. Detection of a +possible _PLD buffer now includes examination of both the normal buffer +length (16 or 20) as well as the surrounding AML package length. + +Disassembler: Fixed a problem with the decoding of complex expressions +within the Divide operator for ASL+. For the case where both the quotient +and remainder targets are specified, the entire statement cannot be +disassembled. Previously, the output incorrectly contained a mix of ASL- +and ASL+ operators. This mixed statement causes a syntax error when +compiled. Example: + Divide (Add (INT1, 6), 128, RSLT, QUOT) // was incorrectly +disassembled to: + Divide (INT1 + 6, 128, RSLT, QUOT) + +iASL/Tools: Added support to process AML and non-AML ACPI tables +consistently. For the disassembler and AcpiExec, allow all types of ACPI +tables (AML and data tables). For the iASL -e option, allow only AML +tables (DSDT/SSDT). + +---------------------------------------- +31 August 2016. Summary of changes for version 20160831: + + +1) ACPICA kernel-resident subsystem: + +Improve support for the so-called "module-level code", which is defined +to be math, logical and control AML opcodes that appear outside of any +control method. This change improves the support by adding more opcodes +that can be executed in the manner. Some other issues have been solved, +and the ASL grammar changes to support such code under all scope +operators (Device, etc.) are complete. Lv Zheng. + +UEFI support: these OSL functions have been implemented. This is an +additional step toward supporting the AcpiExec utility natively (with +full hardware access) under UEFI. Marcelo Ferreira. + AcpiOsReadPciConfiguration + AcpiOsWritePciConfiguration + +Fixed a possible mutex error during control method auto-serialization. Lv +Zheng. + +Updated support for the Generic Address Structure by fully implementing +all GAS fields when a 32-bit address is expanded to a 64-bit GAS. Lv +Zheng. + +Updated the return value for the internal _OSI method. Instead of +0xFFFFFFFF, the "Ones" value is now returned, which is 0xFFFFFFFFFFFFFFFF +for 64-bit ACPI tables. This fixes an incompatibility with other ACPI +implementations, and will be reflected and clarified in the next version +of the ACPI specification. + +Implemented two new table events that can be passed to an ACPICA table +handler. These events are used to indicate a table installation or +uninstallation. These events are used in addition to existed table load +and unload events. Lv Zheng. + +Implemented a cleanup for all internal string-to-integer conversions. +Consolidate multiple versions of this functionality and limit possible +bases to either 10 or 16 to simplify the code. Adds a new file, +utstrtoul64. + +Cleanup the inclusion order of the various compiler-specific headers. +This simplifies build configuration management. The compiler-specific +headers are now split out from the host-specific headers. Lv Zheng. + +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: 140.1K Code, 58.1K Data, 198.1K Total + Debug Version: 200.3K Code, 82.1K Data, 282.4K Total + + +2) iASL Compiler/Disassembler and Tools: + +iASL/AcpiExec: Added a command line option to display the build date/time +of the tool (-vd). This can be useful to verify that the correct version +of the tools are being used. + +AML Debugger: Implemented a new subcommand ("execute predef") to execute +all predefined control methods and names within the current namespace. +This can be useful for debugging problems with ACPI tables and the ACPI +namespace. + +---------------------------------------- +29 July 2016. Summary of changes for version 20160729: + + +1) ACPICA kernel-resident subsystem: + +Implemented basic UEFI support for the various ACPICA tools. This +includes: +1) An OSL to implement the various AcpiOs* interfaces on UEFI. +2) Support to obtain the ACPI tables on UEFI. +3) Local implementation of required C library functions not available on +UEFI. +4) A front-end (main) function for the tools for UEFI-related +initialization. + +The initial deployment of this support is the AcpiDump utility executing +as an UEFI application via EDK2 (EDKII, "UEFI Firmware Development Kit"). +Current environments supported are Linux/Unix. MSVC generation is not +supported at this time. See the generate/efi/README file for build +instructions. Lv Zheng. + +Future plans include porting the AcpiExec utility to execute natively on +the platform with I/O and memory access. This will allow viewing/dump of +the platform namespace and native execution of ACPI control methods that +access the actual hardware. To fully implement this support, the OSL +functions below must be implemented with UEFI interfaces. Any community +help in the implementation of these functions would be appreciated: + AcpiOsReadPort + AcpiOsWritePort + AcpiOsReadMemory + AcpiOsWriteMemory + AcpiOsReadPciConfiguration + AcpiOsWritePciConfiguration + +Restructured and standardized the C library configuration for ACPICA, +resulting in the various configuration options below. This includes a +global restructuring of the compiler-dependent and platform-dependent +include files. These changes may affect the existing platform-dependent +configuration files on some hosts. Lv Zheng. + +The current C library configuration options appear below. For any issues, +it may be helpful to examine the existing compiler-dependent and +platform-dependent files as examples. Lv Zheng. + +1) Linux kernel: + ACPI_USE_STANDARD_HEADERS=n in order not to use system-provided C +library. + ACPI_USE_SYSTEM_CLIBRARY=y in order not to use ACPICA mini C library. +2) Unix/Windows/BSD applications: + ACPI_USE_STANDARD_HEADERS=y in order to use system-provided C +library. + ACPI_USE_SYSTEM_CLIBRARY=y in order not to use ACPICA mini C library. +3) UEFI applications: + ACPI_USE_STANDARD_HEADERS=n in order not to use system-provided C +library. + ACPI_USE_SYSTEM_CLIBRARY=n in order to use ACPICA mini C library. +4) UEFI applications (EDK2/StdLib): + ACPI_USE_STANDARD_HEADERS=y in order to use EDK2 StdLib C library. + ACPI_USE_SYSTEM_CLIBRARY=y in order to use EDK2 StdLib C library. + + +AML interpreter: "module-level code" support. Allows for execution of so- +called "executable" AML code (math/logical operations, etc.) outside of +control methods not just at the module level (top level) but also within +any scope declared outside of a control method - Scope{}, Device{}, +Processor{}, PowerResource{}, and ThermalZone{}. Lv Zheng. + +Simplified the configuration of the "maximum AML loops" global option by +adding a global public variable, "AcpiGbl_MaxLoopIterations" which can be +modified at runtime. + + +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: 139.1K Code, 22.9K Data, 162.0K Total + Debug Version: 199.0K Code, 81.8K Data, 280.8K Total + + +2) iASL Compiler/Disassembler and Tools: + +iASL: Add full support for the RASF ACPI table (RAS Features Table). +Includes disassembler, data table compiler, and header support. + +iASL Expand "module-level code" support. Allows for +compilation/disassembly of so-called "executable" AML code (math/logical +operations, etc.) outside of control methods not just at the module level +(top level) but also within any scope declared outside of a control +method - Scope{}, Device{}, Processor{}, PowerResource{}, and +ThermalZone{}. + +AcpiDump: Added support for dumping all SSDTs on newer versions of +Windows. These tables are now easily available -- SSDTs are not available +through the registry on older versions. + +---------------------------------------- +27 May 2016. Summary of changes for version 20160527: 1) ACPICA kernel-resident subsystem: |
