Sync ACPICA with Intel's version 20211217.

* S4/S5 related fixes.

* Fix a buffer overflow.

* Add support for PCC Opregion special context data.

* Various improvements, such as adding support for

Sync ACPICA with Intel's version 20211217.

* S4/S5 related fixes.

* Fix a buffer overflow.

* Add support for PCC Opregion special context data.

* Various improvements, such as adding support for various tables,
in iasl(8).

For a detailed list, please see sys/contrib/dev/acpica/changes.txt.

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Sync ACPICA with Intel's version 20210930.

* Add new "Windows 2020" _OSI string.

* Improve iasl(8).

* Some sleep/resume fixes (that I guess do not affect us).

For a detailed list, please see sys/

Sync ACPICA with Intel's version 20210930.

* Add new "Windows 2020" _OSI string.

* Improve iasl(8).

* Some sleep/resume fixes (that I guess do not affect us).

For a detailed list, please see sys/contrib/dev/acpica/changes.txt.

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Sync ACPICA with Intel's version 20210730.

* Various fixes for iasl(8).

* Fixes and additions in table definitions.

For a detailed list, please see sys/contrib/dev/acpica/changes.txt.

Sync ACPICA with Intel's version 20210604.

* Fixes and cleanups.

* Add PlatformRtMechanism OperationRegion handler support.

* Add support for various tables.

For a detailed list, please see sys/c

Sync ACPICA with Intel's version 20210604.

* Fixes and cleanups.

* Add PlatformRtMechanism OperationRegion handler support.

* Add support for various tables.

For a detailed list, please see sys/contrib/dev/acpica/changes.txt.

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Sync ACPICA with Intel's version 20210331.

* ACPI 6.4 support.

* Various fixes.

For a detailed list, please see sys/contrib/dev/acpica/changes.txt.

Sync ACPICA with Intel's version 20210105.

iasl: Remove support for obsolete tables

Also, update copyrights.

For detailed list, please see sys/contrib/dev/acpica/changes.txt.

Sync ACPICA with Intel's version 20200326.

* Code cleanup for early GCC 10.

* Various fixes and improvements in acpiexec, acpixtract and iasl.

For detailed list, please see sys/contrib/dev/acpica/

Sync ACPICA with Intel's version 20200326.

* Code cleanup for early GCC 10.

* Various fixes and improvements in acpiexec, acpixtract and iasl.

For detailed list, please see sys/contrib/dev/acpica/changes.txt.

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Sync ACPICA with Intel's version 20200110 (coming from 20190703).

* Allow more OwnerId's to prevent OWNER_ID_LIMIT exceptions.

* Return a Buffer object for all fields created via CreateField.

* Ad

Sync ACPICA with Intel's version 20200110 (coming from 20190703).

* Allow more OwnerId's to prevent OWNER_ID_LIMIT exceptions.

* Return a Buffer object for all fields created via CreateField.

* Add AcpiDispatchGpe() function.

* Exit the interpreter before initializing objects within a newly
loaded table.

* Add new 'Fields' debugger command.

* Make AcpiLoadTable() return a table index and add AcpiUnloadTable().

* Fix acpinames(8) which was broken for some time.

* Added "Windows 2019" _OSI string.

* Various improvements to iasl(8).

* Fix some compilation warnings, fix missing ACPI_PRINTF_LIKE.

* Update copyrights to 2020.

For detailed list, please see sys/contrib/dev/acpica/changes.txt.

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Sync ACPICA with Intel's version 20190215.

* Add support for the ACPI specification version 6.3.

* Fix skipping erroneous extended opcodes.

* Some improvements in iasl(8).

* Remove the legacy Acp

Sync ACPICA with Intel's version 20190215.

* Add support for the ACPI specification version 6.3.

* Fix skipping erroneous extended opcodes.

* Some improvements in iasl(8).

* Remove the legacy AcpiGbl_ExecuteTablesAsMethods global and all
associated code, i.e. the debug.acpi.group_module_level_code tunable
and acpiexec(8)'s -dp option.

For detailed list, please see sys/contrib/dev/acpica/changes.txt.

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Sync ACPICA with Intel's version 20190108.

* New acpiexec(8) option -va to dump memory leak information.

* iasl(8)'s TPM2 table template adjusted for revision 4 of the table.

* Bumped copyrights.

Sync ACPICA with Intel's version 20181031.

* Fix an Operation Region regression, fixing accurate checking for
region conflicts.

* Add support for 2-byte extended opcodes in the code that continue

Sync ACPICA with Intel's version 20181031.

* Fix an Operation Region regression, fixing accurate checking for
region conflicts.

* Add support for 2-byte extended opcodes in the code that continues
parsing during the table load phase.

* Eliminate a no longer used global variable.

For detailed list, please see sys/contrib/dev/acpica/changes.txt.

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Sync ACPICA with Intel's version 20180508 (from previously 20170831).

Tons of fixes and improvements.

For detailed list, please see sys/contrib/dev/acpica/changes.txt.