Date: Thu, 21 May 2009 18:34:26 -0400 From: Jung-uk Kim <jkim@FreeBSD.org> To: freebsd-acpi@FreeBSD.org Cc: Andriy Gapon <avg@freebsd.org> Subject: Re: ACPICA version 20090521 released Message-ID: <200905211834.43324.jkim@FreeBSD.org> In-Reply-To: <4911F71203A09E4D9981D27F9D8308582E0E5016@orsmsx503.amr.corp.intel.com> References: <4911F71203A09E4D9981D27F9D8308582E0E5016@orsmsx503.amr.corp.intel.com>
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On Thursday 21 May 2009 11:56 am, Moore, Robert wrote: > 21 May 2009. Summary of changes for version 20090521: > > This release is available at www.acpica.org/downloads > > 1) ACPI CA Core Subsystem: > > Disabled the preservation of the SCI enable bit in the PM1 control > register. The SCI enable bit (bit 0, SCI_EN) is defined by the ACPI > specification to be a "preserved" bit - "OSPM always preserves this > bit position", section 4.7.3.2.1. However, some machines fail if > this bit is in fact preserved because the bit needs to be > explicitly set by the OS as a workaround. No machines fail if the > bit is not preserved. Therefore, ACPICA no longer attempts to > preserve this bit. > > Fixed a problem in AcpiRsGetPciRoutingTableLength where an invalid > or incorrectly formed _PRT package could cause a fault. Added > validation to ensure that each package element is actually a > sub-package. > > Implemented a new interface to install or override a single control > method, AcpiInstallMethod. This interface is useful when debugging > in order to repair an existing method or to install a missing > method without having to override the entire ACPI table. See the > ACPICA Programmer Reference for use and examples. Lin Ming, Bob > Moore. > > Fixed several reference count issues with the DdbHandle object that > is created from a Load or LoadTable operator. Prevent premature > deletion of the object. Also, mark the object as invalid once the > table has been unloaded. This is needed because the handle itself > may not be deleted after the table unload, depending on whether it > has been stored in a named object by the caller. Lin Ming. > > Fixed a problem with Mutex Sync Levels. Fixed a problem where if > multiple mutexes of the same sync level are acquired but then not > released in strict opposite order, the internally maintained > Current Sync Level becomes confused and can cause subsequent > execution errors. ACPICA BZ 471. > > Changed the allowable release order for ASL mutex objects. The ACPI > 4.0 specification has been changed to make the SyncLevel for mutex > objects more useful. When releasing a mutex, the SyncLevel of the > mutex must now be the same as the current sync level. This makes > more sense than the previous rule (SyncLevel less than or equal). > This change updates the code to match the specification. > > Fixed a problem with the local version of the AcpiOsPurgeCache > function. The (local) cache must be locked during all cache object > deletions. Andrew Baumann. > > Updated the Load operator to use operation region interfaces. This > replaces direct memory mapping with region access calls. Now, all > region accesses go through the installed region handler as they > should. > > Simplified and optimized the NsGetNextNode function. Reduced > parameter count and reduced code for this frequently used function. > > 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: 82.8K Code, 17.5K Data, 100.3K Total > Debug Version: 158.0K Code, 49.9K Data, 207.9K Total > Current Release: > Non-Debug Version: 83.4K Code, 17.5K Data, 100.9K Total > Debug Version: 158.9K Code, 50.0K Data, 208.9K Total > > 2) iASL Compiler/Disassembler and Tools: > > Disassembler: Fixed some issues with DMAR, HEST, MADT tables. Some > problems with sub-table disassembly and handling invalid > sub-tables. Attempt recovery after an invalid sub-table ID. I just uploaded a new patchset against -CURRENT: http://people.freebsd.org/~jkim/acpica-import-20090521.diff.gz Please note that I am planning on merging it before 8.0 release. Therefore, it needs more regression tests and serious code reviews now. Thanks, Jung-uk Kim
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