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Diffstat (limited to 'sys/contrib/dev/acpica/CHANGES.txt')
| -rw-r--r-- | sys/contrib/dev/acpica/CHANGES.txt | 545 |
1 files changed, 545 insertions, 0 deletions
diff --git a/sys/contrib/dev/acpica/CHANGES.txt b/sys/contrib/dev/acpica/CHANGES.txt index 81ac58d..112d62d 100644 --- a/sys/contrib/dev/acpica/CHANGES.txt +++ b/sys/contrib/dev/acpica/CHANGES.txt @@ -1,4 +1,549 @@ ---------------------------------------- +19 November 2004. Summary of changes for version 20041119: + +1) ACPI CA Core Subsystem: + +Fixed a problem in the internal ConvertToInteger routine where new +integers were not truncated to 32 bits for 32-bit ACPI tables. This +routine converts buffers and strings to integers. + +Implemented support to store a value to an Index() on a String object. +This is an ACPI 2.0 feature that had not yet been implemented. + +Implemented new behavior for storing objects to individual package +elements (via the Index() operator). The previous behavior was to invoke +the implicit conversion rules if an object was already present at the +index. The new behavior is to simply delete any existing object and +directly store the new object. Although the ACPI specification seems +unclear on this subject, other ACPI implementations behave in this +manner. (This is the root of the AE_BAD_HEX_CONSTANT issue.) + +Modified the RSDP memory scan mechanism to support the extended checksum +for ACPI 2.0 (and above) RSDPs. Note that the search continues until a +valid RSDP signature is found with a valid checksum. + +Code and Data Size: Current and previous core subsystem library sizes +are shown below. These are the code and data sizes for the acpica.lib +produced by the Microsoft Visual C++ 6.0 compiler, and these values do +not include any ACPI driver or OSPM code. The debug version of the code +includes the debug output trace mechanism and has a much larger code and +data size. Note that these values will vary depending on the efficiency +of the compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total + Debug Version: 165.2K Code, 68.6K Data, 233.8K Total + Current Release: + Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total + Debug Version: 165.2K Code, 68.6K Data, 233.8K Total + + +2) iASL Compiler/Disassembler: + +Fixed a missing semicolon in the aslcompiler.y file. + +---------------------------------------- +05 November 2004. Summary of changes for version 20041105: + +1) ACPI CA Core Subsystem: + +Implemented support for FADT revision 2. This was an interim +table (between ACPI 1.0 and ACPI 2.0) that adds support for the +FADT reset register. + +Implemented optional support to allow uninitialized LocalX and +ArgX variables in a control method. The variables are +initialized to an Integer object with a value of zero. This +support is enabled by setting the AcpiGbl_EnableInterpreterSlack +flag to TRUE. + +Implemented support for Integer objects for the SizeOf operator. +Either 4 or 8 is returned, depending on the current integer size +(32-bit or 64-bit, depending on the parent table revision). + +Fixed a problem in the implementation of the SizeOf and +ObjectType operators where the operand was resolved to a value +too early, causing incorrect return values for some objects. + +Fixed some possible memory leaks during exceptional conditions. + +Code and Data Size: Current and previous core subsystem library +sizes are shown below. These are the code and data sizes for the +acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and +these values do not include any ACPI driver or OSPM code. The +debug version of the code includes the debug output trace +mechanism and has a much larger code and data size. Note that +these values will vary depending on the efficiency of the +compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total + Debug Version: 164.8K Code, 68.6K Data, 233.4K Total + Current Release: + Non-Debug Version: 78.5K Code, 11.5K Data, 90.0K Total + Debug Version: 165.2K Code, 68.6K Data, 233.8K Total + + +2) iASL Compiler/Disassembler: + +Implemented support for all ACPI 3.0 reserved names and methods. + +Implemented all ACPI 3.0 grammar elements in the front-end, +including support for semicolons. + +Implemented the ACPI 3.0 Function() and ToUUID() macros + +Fixed a problem in the disassembler where a Scope() operator +would not be emitted properly if the target of the scope was in +another table. + +---------------------------------------- +15 October 2004. Summary of changes for version 20041015: + +Note: ACPI CA is currently undergoing an in-depth and complete +formal evaluation to test/verify the following areas. Other +suggestions are welcome. This will result in an increase in the +frequency of releases and the number of bug fixes in the next few +months. + - Functional tests for all ASL/AML operators + - All implicit/explicit type conversions + - Bit fields and operation regions + - 64-bit math support and 32-bit-only "truncated" math support + - Exceptional conditions, both compiler and interpreter + - Dynamic object deletion and memory leaks + - ACPI 3.0 support when implemented + - External interfaces to the ACPI subsystem + + +1) ACPI CA Core Subsystem: + +Fixed two alignment issues on 64-bit platforms - within debug +statements in AcpiEvGpeDetect and AcpiEvCreateGpeBlock. Removed +references to the Address field within the non-aligned ACPI +generic address structure. + +Fixed a problem in the Increment and Decrement operators where +incorrect operand resolution could result in the inadvertent +modification of the original integer when the integer is passed +into another method as an argument and the arg is then +incremented/decremented. + +Fixed a problem in the FromBCD operator where the upper 32-bits +of a 64-bit BCD number were truncated during conversion. + +Fixed a problem in the ToDecimal operator where the length of the +resulting string could be set incorrectly too long if the input +operand was a Buffer object. + +Fixed a problem in the Logical operators (LLess, etc.) where a +NULL byte (0) within a buffer would prematurely terminate a +compare between buffer objects. + +Added a check for string overflow (>200 characters as per the +ACPI specification) during the Concatenate operator with two +string operands. + +Code and Data Size: Current and previous core subsystem library +sizes are shown below. These are the code and data sizes for the +acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and +these values do not include any ACPI driver or OSPM code. The +debug version of the code includes the debug output trace +mechanism and has a much larger code and data size. Note that +these values will vary depending on the efficiency of the +compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total + Debug Version: 164.6K Code, 68.5K Data, 233.1K Total + Current Release: + Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total + Debug Version: 164.8K Code, 68.6K Data, 233.4K Total + + +2) iASL Compiler/Disassembler: + +Allow the use of the ObjectType operator on uninitialized Locals +and Args (returns 0 as per the ACPI specification). + +Fixed a problem where the compiler would fault if there was a +syntax error in the FieldName of all of the various +CreateXXXField operators. + +Disallow the use of lower case letters within the EISAID macro, +as per the ACPI specification. All EISAID strings must be of the +form "UUUNNNN" Where U is an uppercase letter and N is a hex +digit. + + +---------------------------------------- +06 October 2004. Summary of changes for version 20041006: + +1) ACPI CA Core Subsystem: + +Implemented support for the ACPI 3.0 Timer operator. This ASL +function implements a 64-bit timer with 100 nanosecond +granularity. + +Defined a new OSL interface, AcpiOsGetTimer. This interface is +used to implement the ACPI 3.0 Timer operator. This allows the +host OS to implement the timer with the best clock available. +Also, it keeps the core subsystem out of the clock handling +business, since the host OS (usually) performs this function. + +Fixed an alignment issue on 64-bit platforms. The +HwLowLevelRead(Write) functions use a 64-bit address which is +part of the packed ACPI Generic Address Structure. Since the +structure is non-aligned, the alignment macros are now used to +extract the address to a local variable before use. + +Fixed a problem where the ToInteger operator assumed all input +strings were hexadecimal. The operator now handles both decimal +strings and hex strings (prefixed with "0x"). + +Fixed a problem where the string length in the string object +created as a result of the internal ConvertToString procedure +could be incorrect. This potentially affected all implicit +conversions and also the ToDecimalString and ToHexString +operators. + +Fixed two problems in the ToString operator. If the length +parameter was zero, an incorrect string object was created and +the value of the input length parameter was inadvertently changed +from zero to Ones. + +Fixed a problem where the optional ResourceSource string in the +ExtendedIRQ resource macro was ignored. + +Simplified the interfaces to the internal division functions, +reducing code size and complexity. + +Code and Data Size: Current and previous core subsystem library +sizes are shown below. These are the code and data sizes for the +acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and +these values do not include any ACPI driver or OSPM code. The +debug version of the code includes the debug output trace +mechanism and has a much larger code and data size. Note that +these values will vary depending on the efficiency of the +compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total + Debug Version: 164.5K Code, 68.3K Data, 232.8K Total + Current Release: + Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total + Debug Version: 164.6K Code, 68.5K Data, 233.1K Total + + +2) iASL Compiler/Disassembler: + +Implemented support for the ACPI 3.0 Timer operator. + +Fixed a problem where the Default() operator was inadvertently +ignored in a Switch/Case block. This was a problem in the +translation of the Switch statement to If...Else pairs. + +Added support to allow a standalone Return operator, with no +parentheses (or operands). + +Fixed a problem with code generation for the ElseIf operator +where the translated Else...If parse tree was improperly +constructed leading to the loss of some code. + +---------------------------------------- +22 September 2004. Summary of changes for version 20040922: + +1) ACPI CA Core Subsystem: + +Fixed a problem with the implementation of the LNot() operator +where "Ones" was not returned for the TRUE case. Changed the code +to return Ones instead of (!Arg) which was usually 1. This change +affects iASL constant folding for this operator also. + +Fixed a problem in AcpiUtInitializeBuffer where an existing +buffer was not initialized properly -- Now zero the entire buffer +in this case where the buffer already exists. + +Changed the interface to AcpiOsSleep from (UINT32 Seconds, UINT32 +Milliseconds) to simply (ACPI_INTEGER Milliseconds). This +simplifies all related code considerably. This will require +changes/updates to all OS interface layers (OSLs.) + +Implemented a new external interface, +AcpiInstallExceptionHandler, to allow a system exception handler +to be installed. This handler is invoked upon any run-time +exception that occurs during control method execution. + +Added support for the DSDT in AcpiTbFindTable. This allows the +DataTableRegion() operator to access the local copy of the DSDT. + +Code and Data Size: Current and previous core subsystem library +sizes are shown below. These are the code and data sizes for the +acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and +these values do not include any ACPI driver or OSPM code. The +debug version of the code includes the debug output trace +mechanism and has a much larger code and data size. Note that +these values will vary depending on the efficiency of the +compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total + Debug Version: 164.2K Code, 68.2K Data, 232.4K Total + Current Release: + Non-Debug Version: 77.9K Code, 11.4K Data, 89.3K Total + Debug Version: 164.5K Code, 68.3K Data, 232.8K Total + + +2) iASL Compiler/Disassembler: + +Fixed a problem with constant folding and the LNot operator. LNot +was returning 1 in the TRUE case, not Ones as per the ACPI +specification. This could result in the generation of an +incorrect folded/reduced constant. + +End-Of-File is now allowed within a "//"-style comment. A parse +error no longer occurs if such a comment is at the very end of +the input ASL source file. + +Implemented the "-r" option to override the Revision in the table +header. The initial use of this option will be to simplify the +evaluation of the AML interpreter by allowing a single ASL source +module to be compiled for either 32-bit or 64-bit integers. + + +---------------------------------------- +27 August 2004. Summary of changes for version 20040827: + +1) ACPI CA Core Subsystem: + +- Implemented support for implicit object conversion in the non- +numeric logical operators (LEqual, LGreater, LGreaterEqual, +LLess, LLessEqual, and LNotEqual.) Any combination of +Integers/Strings/Buffers may now be used; the second operand is +implicitly converted on the fly to match the type of the first +operand. For example: + + LEqual (Source1, Source2) + +Source1 and Source2 must each evaluate to an integer, a string, +or a buffer. The data type of Source1 dictates the required type +of Source2. Source2 is implicitly converted if necessary to match +the type of Source1. + +- Updated and corrected the behavior of the string conversion +support. The rules concerning conversion of buffers to strings +(according to the ACPI specification) are as follows: + +ToDecimalString - explicit byte-wise conversion of buffer to +string of decimal values (0-255) separated by commas. ToHexString +- explicit byte-wise conversion of buffer to string of hex values +(0-FF) separated by commas. ToString - explicit byte-wise +conversion of buffer to string. Byte-by-byte copy with no +transform except NULL terminated. Any other implicit buffer-to- +string conversion - byte-wise conversion of buffer to string of +hex values (0-FF) separated by spaces. + +- Fixed typo in definition of AcpiGbl_EnableInterpreterSlack. + +- Fixed a problem in AcpiNsGetPathnameLength where the returned +length was one byte too short in the case of a node in the root +scope. This could cause a fault during debug output. + +- Code and Data Size: Current and previous core subsystem library +sizes are shown below. These are the code and data sizes for the +acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and +these values do not include any ACPI driver or OSPM code. The +debug version of the code includes the debug output trace +mechanism and has a much larger code and data size. Note that +these values will vary depending on the efficiency of the +compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total + Debug Version: 164.1K Code, 68.3K Data, 232.4K Total + Current Release: + Non-Debug Version: 77.8K Code, 11.4K Data, 89.2K Total + Debug Version: 164.2K Code, 68.2K Data, 232.4K Total + + +2) iASL Compiler/Disassembler: + +- Fixed a Linux generation error. + + +---------------------------------------- +16 August 2004. Summary of changes for version 20040816: + +1) ACPI CA Core Subsystem: + +Designed and implemented support within the AML interpreter for +the so-called "implicit return". This support returns the result +of the last ASL operation within a control method, in the absence +of an explicit Return() operator. A few machines depend on this +behavior, even though it is not explicitly supported by the ASL +language. It is optional support that can be enabled at runtime +via the AcpiGbl_EnableInterpeterSlack flag. + +Removed support for the PCI_Config address space from the +internal low level hardware interfaces (AcpiHwLowLevelRead and +AcpiHwLowLevelWrite). This support was not used internally, and +would not work correctly anyway because the PCI bus number and +segment number were not supported. There are separate interfaces +for PCI configuration space access because of the unique +interface. + +Code and Data Size: Current and previous core subsystem library +sizes are shown below. These are the code and data sizes for the +acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and +these values do not include any ACPI driver or OSPM code. The +debug version of the code includes the debug output trace +mechanism and has a much larger code and data size. Note that +these values will vary depending on the efficiency of the +compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total + Debug Version: 164.1K Code, 68.2K Data, 232.3K Total + Current Release: + Non-Debug Version: 77.9K Code, 11.5K Data, 89.4K Total + Debug Version: 164.1K Code, 68.3K Data, 232.4K Total + + +2) iASL Compiler/Disassembler: + +Fixed a problem where constants in ASL expressions at the root +level (not within a control method) could be inadvertently +truncated during code generation. This problem was introduced in +the 20040715 release. + + +---------------------------------------- +15 July 2004. Summary of changes for version 20040715: + +1) ACPI CA Core Subsystem: + +Restructured the internal HW GPE interfaces to pass/track the +current state of interrupts (enabled/disabled) in order to avoid +possible deadlock and increase flexibility of the interfaces. + +Implemented a "lexicographical compare" for String and Buffer +objects within the logical operators -- LGreater, LLess, +LGreaterEqual, and LLessEqual -- as per further clarification to +the ACPI specification. Behavior is similar to C library +"strcmp". + +Completed a major reduction in CPU stack use for the +AcpiGetFirmwareTable external function. In the 32-bit non-debug +case, the stack use has been reduced from 168 bytes to 32 bytes. + +Deployed a new run-time configuration flag, +AcpiGbl_EnableInterpreterSlack, whose purpose is to allow the AML +interpreter to forgive certain bad AML constructs. Default +setting is FALSE. + +Implemented the first use of AcpiGbl_EnableInterpreterSlack in +the Field IO support code. If enabled, it allows field access to +go beyond the end of a region definition if the field is within +the region length rounded up to the next access width boundary (a +common coding error.) + +Renamed OSD_HANDLER to ACPI_OSD_HANDLER, and +OSD_EXECUTION_CALLBACK to ACPI_OSD_EXEC_CALLBACK for consistency +with other ACPI symbols. Also, these symbols are lowercased by +the latest version of the AcpiSrc tool. + +The prototypes for the PCI interfaces in acpiosxf.h have been +updated to rename "Register" to simply "Reg" to prevent certain +compilers from complaining. + +Code and Data Size: Current and previous core subsystem library +sizes are shown below. These are the code and data sizes for the +acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and +these values do not include any ACPI driver or OSPM code. The +debug version of the code includes the debug output trace +mechanism and has a much larger code and data size. Note that +these values will vary depending on the efficiency of the +compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total + Debug Version: 163.8K Code, 68.2K Data, 232.0K Total + Current Release: + Non-Debug Version: 78.0K Code, 11.5K Data, 89.5K Total + Debug Version: 164.1K Code, 68.2K Data, 232.3K Total + + +2) iASL Compiler/Disassembler: + +Implemented full support for Package objects within the Case() +operator. Note: The Break() operator is currently not supported +within Case blocks (TermLists) as there is some question about +backward compatibility with ACPI 1.0 interpreters. + +Fixed a problem where complex terms were not supported properly +within the Switch() operator. + +Eliminated extraneous warning for compiler-emitted reserved names +of the form "_T_x". (Used in Switch/Case operators.) + +Eliminated optimization messages for "_T_x" objects and small +constants within the DefinitionBlock operator. + + +---------------------------------------- +15 June 2004. Summary of changes for version 20040615: + +1) ACPI CA Core Subsystem: + +Implemented support for Buffer and String objects (as per ACPI +2.0) for the following ASL operators: LEqual, LGreater, LLess, +LGreaterEqual, and LLessEqual. + +All directory names in the entire source package are lower case, +as they were in earlier releases. + +Implemented "Disassemble" command in the AML debugger that will +disassemble a single control method. + +Code and Data Size: Current and previous core subsystem library +sizes are shown below. These are the code and data sizes for the +acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and +these values do not include any ACPI driver or OSPM code. The +debug version of the code includes the debug output trace +mechanism and has a much larger code and data size. Note that +these values will vary depending on the efficiency of the +compiler and the compiler options used during generation. + + Previous Release: + Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total + Debug Version: 163.3K Code, 67.2K Data, 230.5K Total + Current Release: + Non-Debug Version: 77.8K Code, 11.5K Data, 89.3K Total + Debug Version: 163.8K Code, 68.2K Data, 232.0K Total + + +2) iASL Compiler/Disassembler: + +Implemented support for Buffer and String objects (as per ACPI +2.0) for the following ASL operators: LEqual, LGreater, LLess, +LGreaterEqual, and LLessEqual. + +All directory names in the entire source package are lower case, +as they were in earlier releases. + +Fixed a fault when using the -g or -d<nofilename> options if the +FADT was not found. + +Fixed an issue with the Windows version of the compiler where +later versions of Windows place the FADT in the registry under +the name "FADT" and not "FACP" as earlier versions did. This +applies when using the -g or -d<nofilename> options. The +compiler now looks for both strings as necessary. + +Fixed a problem with compiler namepath optimization where a +namepath within the Scope() operator could not be optimized if +the namepath was a subpath of the current scope path. + +---------------------------------------- 27 May 2004. Summary of changes for version 20040527: 1) ACPI CA Core Subsystem: |
