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author | Robert Moore <Robert.Moore@intel.com> | 2022-03-31 09:34:37 -0700 |
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committer | Robert Moore <Robert.Moore@intel.com> | 2022-03-31 09:34:37 -0700 |
commit | 965c375e2ab6cd76521b251d8e3dd48c2e1f241a (patch) | |
tree | d379bca9600220f91de46c884937035a3efe8d3f /documents | |
parent | 778a61faff41ef7dabee1e249d0f0c5026979b7c (diff) | |
download | acpica-965c375e2ab6cd76521b251d8e3dd48c2e1f241a.tar.gz |
Logfile: Changes for version 20220331.
Version 20220331.
Diffstat (limited to 'documents')
-rw-r--r-- | documents/changes.txt | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/documents/changes.txt b/documents/changes.txt index d5cc9942f..cf3c21898 100644 --- a/documents/changes.txt +++ b/documents/changes.txt @@ -1,4 +1,82 @@ ---------------------------------------- +31 March 2022. Summary of changes for version 20220331: + +0) Global changes: + +Update all copyright notices to the year 2022. This effects all source +modules, as well as utility signons. + + +1) ACPICA kernel-resident subsystem: + +For the ASL Sleep() operator, issue a warning if the sleep value is +greater than 10 Milliseconds. Quick boottime is important, so warn about +sleeps greater than 10 ms. Distribution Linux kernels reach initrd in 350 +ms, so excessive delays should be called out. 10 ms is chosen randomly, +but three of such delays would already make up ten percent of the +boottime. + +Namespace: Avoid attempting to walk the Namespace if the Namespace does +not exist. + +AML interpreter/iASL compiler: Add new Acpi 6.4 semantics for the +LoadTable and Load operators. DDB_HANDLE is gone, now loadtable returns a +pass/fail integer. Now load returns a pass/fail integer, as well as +storing the return value in an optional 2nd argument. + +Headers: Use uintptr_t and offsetof() in Linux kernel builds. To avoid +"performing pointer subtraction with a null pointer has undefined +behavior" compiler warnings, use uintptr_t and offsetof() that are always +available during Linux kernel builds to define ACPI_UINTPTR_T and the +ACPI_TO_INTEGER() and ACPI_OFFSET() macros when building the ACPICA code +in the Linux kernel. + +Added support for the Windows 11 _OSI string ("Windows 2021"). Submitted +by superm1. + +executer/exsystem: Inform users about ACPI spec violation for the Stall() +operator. Values greater than 100 microseconds violate the ACPI +specification, so warn users about it. From the ACPI Specification +version 6.2 Errata A, 19.6.128 *Stall (Stall for a Short Time)*: +> The implementation of Stall is OS-specific, but must not relinquish +> control of the processor. Because of this, delays longer than 100 +> microseconds must use Sleep instead of Stall. + + +2) iASL Compiler/Disassembler and ACPICA tools: + +Data Table Compiler/Disassembler: Add support for the APMT table - ARM +Performance Monitoring Unit table. Submitted by @bwicaksononv. + +Data Table Compiler/Disassembler: For MADT, add support for the OEM- +defined subtables (Types 0x80-0x7F). + +Data Table Compiler: Fixed a problem with support for the SDEV table, +where a subtable Length was not computed correctly. + +Data Table Compiler/Disassembler: Add/fix the CFMWS subtable to the CEDT +Acpi table support. + +Data Table Compiler/Disassembler: Fix a compile issue with the CEDT and +add template. Submitted by MasterDrogo. + +Data Table Compiler/Disassembler: NHLT Changes provided by Piotr Maziarz: +iASL/NHLT: Rename linux specific structures to DeviceInfo to improve +readability of the code. +iASL/NHLT: Fix parsing undocumented bytes at the end of Endpoint. +Undocumented bytes at the end of Endpoint Descriptor can be present +independently of Linux-specific structures. Their size can also vary. +iASL/NHLT: Treat TableTerminator as SpecificConfig. SpecificConfig has 4 +bytes of size and then an amount of bytes specified by size. All of the +terminators that I've seen had a size equal to 4, but theoretically it +can vary. + +iASL/AcpiExec: Use _exit instead of exit in signal handers (ctrl-C). + +iASL: Remove a remark due to excessive output. Removed a remark for +duplicate Offset() operators, due to a user complaint. + +---------------------------------------- 17 December 2021. Summary of changes for version 20211217: 1) ACPICA kernel-resident subsystem: |