---------------------------------------- 09 November 2006. Summary of changes for version 20061109: 1) ACPI CA Core Subsystem: Optimized the Load ASL operator in the case where the source operand is an operation region. Simply map the operation region memory, instead of performing a bytewise read. (Region must be of type SystemMemory, see below.) Fixed the Load ASL operator for the case where the source operand is a region field. A buffer object is also allowed as the source operand. BZ 480 Fixed a problem where the Load ASL operator allowed the source operand to be an operation region of any type. It is now restricted to regions of type SystemMemory, as per the ACPI specification. BZ 481 Additional cleanup and optimizations for the new Table Manager code. AcpiEnable will now fail if all of the required ACPI tables are not loaded (FADT, FACS, DSDT). BZ 477 Added #pragma pack(8/4) to acobject.h to ensure that the structures in this header are always compiled as aligned. The ACPI_OPERAND_OBJECT has been manually optimized to be aligned and will not work if it is byte-packed. Example Code and Data Size: These are the sizes for the OS-independent acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The debug version of the code includes the debug output trace mechanism and has a much larger code and data size. Previous Release: Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total Debug Version: 155.4K Code, 63.1K Data, 218.5K Total Current Release: Non-Debug Version: 77.9K Code, 17.0K Data, 94.9K Total Debug Version: 155.2K Code, 63.1K Data, 218.3K Total 2) iASL Compiler/Disassembler and Tools: Fixed a problem where the presence of the _OSI predefined control method within complex expressions could cause an internal compiler error. AcpiExec: Implemented full region support for multiple address spaces. SpaceId is now part of the REGION object. BZ 429 ---------------------------------------- 11 October 2006. Summary of changes for version 20061011: 1) ACPI CA Core Subsystem: Completed an AML interpreter performance enhancement for control method execution. Previously a 2-pass parse/execution, control methods are now completely parsed and executed in a single pass. This improves overall interpreter performance by ~25%, reduces code size, and reduces CPU stack use. (Valery Podrezov + interpreter changes in version 20051202 that eliminated namespace loading during the pass one parse.) Implemented _CID support for PCI Root Bridge detection. If the _HID does not match the predefined PCI Root Bridge IDs, the _CID list (if present) is now obtained and also checked for an ID match. Implemented additional support for the PCI _ADR execution: upsearch until a device scope is found before executing _ADR. This allows PCI_Config operation regions to be declared locally within control methods underneath PCI device objects. Fixed a problem with a possible race condition between threads executing AcpiWalkNamespace and the AML interpreter. This condition was removed by modifying AcpiWalkNamespace to (by default) ignore all temporary namespace entries created during any concurrent control method execution. An additional namespace race condition is known to exist between AcpiWalkNamespace and the Load/Unload ASL operators and is still under investigation. Restructured the AML ParseLoop function, breaking it into several subfunctions in order to reduce CPU stack use and improve maintainability. (Mikhail Kouzmich) AcpiGetHandle: Fix for parameter validation to detect invalid combinations of prefix handle and pathname. BZ 478 Example Code and Data Size: These are the sizes for the OS-independent acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The debug version of the code includes the debug output trace mechanism and has a much larger code and data size. Previous Release: Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total Debug Version: 154.6K Code, 63.0K Data, 217.6K Total Current Release: Non-Debug Version: 78.1K Code, 17.1K Data, 95.2K Total Debug Version: 155.4K Code, 63.1K Data, 218.5K Total 2) iASL Compiler/Disassembler and Tools: Ported the -g option (get local ACPI tables) to the new ACPICA Table Manager to restore original behavior. ---------------------------------------- 27 September 2006. Summary of changes for version 20060927: 1) ACPI CA Core Subsystem: Removed the "Flags" parameter from AcpiGetRegister and AcpiSetRegister. These functions now use a spinlock for mutual exclusion and the interrupt level indication flag is not needed. Fixed a problem with the Global Lock where the lock could appear to be obtained before it is actually obtained. The global lock semaphore was inadvertently created with one unit instead of zero units. (BZ 464) Fiodor Suietov. Fixed a possible memory leak and fault in AcpiExResolveObjectToValue during a read from a buffer or region field. (BZ 458) Fiodor Suietov. Example Code and Data Size: These are the sizes for the OS-independent acpica.lib produced by the Microsoft Visual C++ 6.0 32-bit compiler. The debug version of the code includes the debug output trace mechanism and has a much larger code and data size. Previous Release: Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total Debug Version: 154.7K Code, 63.0K Data, 217.7K Total Current Release: Non-Debug Version: 77.9K Code, 17.1K Data, 95.0K Total Debug Version: 154.6K Code, 63.0K Data, 217.6K Total 2) iASL Compiler/Disassembler and Tools: Fixed a compilation problem with the pre-defined Resource Descriptor field names where an "object does not exist" error could be incorrectly generated if the parent ResourceTemplate pathname places the template within a different namespace scope than the current scope. (BZ 7212) Fixed a problem where the compiler could hang after syntax errors detected in an ElseIf construct. (BZ 453) Fixed a problem with the AmlFilename parameter to the DefinitionBlock() operator. An incorrect output filename was produced when this parameter was a null string (""). Now, the original input filename is used as the AML output filename, with an ".aml" extension. Implemented a generic batch command mode for the AcpiExec utility (execute any AML debugger command) (Valery Podrezov). ---------------------------------------- 12 September 2006. Summary of changes for version 20060912: Reproducible: Always Steps to Reproduce:
20080514 in the tree, see the Changelog.
