Import ACPICA 20130215.vendor/acpica/20130214

1 files changed, 95 insertions, 1 deletions

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-17 January 2013. Summary of changes for version 20130117:
+14 February 2013. Summary of changes for version 20130214:
+
+1) ACPICA Kernel-resident Subsystem:
+
+Fixed a possible regression on some hosts: Reinstated the safe return 
+macros (return_ACPI_STATUS, etc.) that ensure that the argument is 
+evaluated only once. Although these macros are not needed for the ACPICA 
+code itself, they are often used by ACPI-related host device drivers where 
+the safe feature may be necessary.
+
+Fixed several issues related to the ACPI 5.0 reduced hardware support 
+(SOC): Now ensure that if the platform declares itself as hardware-reduced 
+via the FADT, the following functions become NOOPs (and always return 
+AE_OK) because ACPI is always enabled by definition on these machines:
+  AcpiEnable
+  AcpiDisable
+  AcpiHwGetMode
+  AcpiHwSetMode
+
+Dynamic Object Repair: Implemented additional runtime repairs for 
+predefined name return values. Both of these repairs can simplify code in 
+the related device drivers that invoke these methods:
+1) For the _STR and _MLS names, automatically repair/convert an ASCII 
+string to a Unicode buffer. 
+2) For the _CRS, _PRS, and _DMA names, return a resource descriptor with a 
+lone end tag descriptor in the following cases: A Return(0) was executed, 
+a null buffer was returned, or no object at all was returned (non-slack 
+mode only). Adds a new file, nsconvert.c
+ACPICA BZ 998. Bob Moore, Lv Zheng.
+
+Resource Manager: Added additional code to prevent possible infinite loops 
+while traversing corrupted or ill-formed resource template buffers. Check 
+for zero-length resource descriptors in all code that loops through 
+resource templates (the length field is used to index through the 
+template). This change also hardens the external AcpiWalkResources and 
+AcpiWalkResourceBuffer interfaces.
+
+Local Cache Manager: Enhanced the main data structure to eliminate an 
+unnecessary mechanism to access the next object in the list. Actually 
+provides a small performance enhancement for hosts that use the local 
+ACPICA cache manager. Jung-uk Kim.
+
+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.
+
+  Previous Release:
+    Non-Debug Version:  94.5K Code, 25.4K Data, 119.9K Total
+    Debug Version:     182.3K Code, 75.0K Data, 257.3K Total
+  Current Release:
+    Non-Debug Version:  95.0K Code, 25.9K Data, 120.9K Total
+    Debug Version:     182.9K Code, 75.6K Data, 258.5K Total
+
+
+2) iASL Compiler/Disassembler and Tools:
+
+iASL/Disassembler: Fixed several issues with the definition of the ACPI 
+5.0 RASF table (RAS Feature Table). This change incorporates late changes 
+that were made to the ACPI 5.0 specification.
+
+iASL/Disassembler: Added full support for the following new ACPI tables:
+  1) The MTMR table (MID Timer Table)
+  2) The VRTC table (Virtual Real Time Clock Table).
+Includes header file, disassembler, table compiler, and template support 
+for both tables.
+
+iASL: Implemented compile-time validation of package objects returned by 
+predefined names. This new feature validates static package objects 
+returned by the various predefined names defined to return packages. Both 
+object types and package lengths are validated, for both parent packages 
+and sub-packages, if any. The code is similar in structure and behavior to 
+the runtime repair mechanism within the AML interpreter and uses the 
+existing predefined name information table. Adds a new file, aslprepkg.c. 
+ACPICA BZ 938.
 
+iASL: Implemented auto-detection of binary ACPI tables for disassembly. 
+This feature detects a binary file with a valid ACPI table header and 
+invokes the disassembler automatically. Eliminates the need to 
+specifically invoke the disassembler with the -d option. ACPICA BZ 862.
+
+iASL/Disassembler: Added several warnings for the case where there are 
+unresolved control methods during the disassembly. This can potentially 
+cause errors when the output file is compiled, because the disassembler 
+assumes zero method arguments in these cases (it cannot determine the 
+actual number of arguments without resolution/definition of the method).
+
+Debugger: Added support to display all resources with a single command. 
+Invocation of the resources command with no arguments will now display all 
+resources within the current namespace.
+
+AcpiHelp: Added descriptive text for each ACPICA exception code displayed 
+via the -e option.
+
+----------------------------------------
+17 January 2013. Summary of changes for version 20130117:
 
 1) ACPICA Kernel-resident Subsystem: