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Logfile: Changes for version 20200925

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Version 20200925.
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Robert Moore 2020-09-25 09:50:11 -07:00
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25 September 2020. Summary of changes for version 20200925:
This release is available at https://acpica.org/downloads
1) ACPICA kernel-resident subsystem:
Preserve memory opregion mappings. The ACPICA's strategy with respect to
the handling of memory mappings associated with memory operation regions
is to avoid mapping the entire region at once which may be problematic at
least in principle (for example, it may lead to conflicts with
overlapping mappings having different attributes created by drivers). It
may also be wasteful, because memory opregions on some systems take up
vastchunks of address space while the fields in those regions actually
accessed by AML are sparsely distributed.
For this reason, a one-page "window" is mapped for a given opregion on
the first memory access through it and if that "window" does not cover an
address range accessed through that opregion subsequently, it is unmapped
and a new "window" is mapped to replace it. Next, if the new "window" is
not sufficient to access memory through the opregion in question in the
future, it will be replaced with yet another "window" and so on. That
may lead to a suboptimal sequence of memory mapping and unmapping
operations, for example if two fields in one opregion separated from each
other by a sufficiently wide chunk of unused address space are accessed
in an alternating pattern.
Added support for 64 bit risc-v compilation. Useful for acpica tools and
incorporating ACPICA into the Firmware Test Suite. Colin Ian King
<colin.king@canonical.com>.
Added support for SMBus predefined names (from SMBus Control Method
Interface Specification, Version 1.0, December 10, 1999. New predefined
names:
_SBA
_SBI
_SBR
_SBT
_SBW
AML Disassembler: Added a new command, "All <NameSeg". This command will
evaluate all objects in the current namespace whose NameString contains
the input NameSeg as the last element of the NameString. Useful for
debugging.
2) iASL Compiler/Disassembler and ACPICA tools:
iASL: fixed a crash that occurred when predefined objects return packages
with lengths that exceed the initializer list.
iASL: added more detail to external resolution error message when
compiling multiple definition blocks.
iASL: improve alias analysis by saving object type. If the alias is a
method type, the parameter count is also recorded.
AcpiExec: Increase the default loop timeout value. Was 1 second, is now
10 seconds. Prevents unnecessary timeouts when executing control methods
from the command line.
AcpiHelp/disassembler: Added a bunch of "known" UUIDs to the internal
list. Includes:
Memory Device
Generic Buttons Device
NVDIMM Root Device
Control Method Battery
Device Graphs for _DSD method
Hierarchical Data Extension
....ARM CoreSight Graph
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17 July 2020. Summary of changes for version 20200717:
This release is available at https://acpica.org/downloads