https://bugzilla.kernel.org/show_bug.cgi?id=215626
--- Comment #3 from Dominique Schaefer (dschaefe...@xilix.ch) ---
root@dreampc:~# cat /sys/firmware/acpi/tables/DSDT > dsdt.dat
root@dreampc:~# iasl -d dsdt.dat
Intel ACPI Component Architecture
ASL+ Optimizing Compiler/Disassembler version 20200925
Copyright (c) 2000 - 2020 Intel Corporation
File appears to be binary: found 166895 non-ASCII characters, disassembling
Binary file appears to be a valid ACPI table, disassembling
Input file dsdt.dat, Length 0x7536C (480108) bytes
ACPI: DSDT 0x0000000000000000 07536C (v02 ALASKA A M I 01072009 INTL
20200717)
Pass 1 parse of [DSDT]
Pass 2 parse of [DSDT]
Parsing Deferred Opcodes (Methods/Buffers/Packages/Regions)
Parsing completed
Disassembly completed
ASL Output: dsdt.dsl - 3428911 bytes
iASL Warning: There were 224 external control methods found during
disassembly, but only 480 were resolved (4294967040 unresolved). Additional
ACPI tables may be required to properly disassemble the code. This
resulting disassembler output file may not compile because the
disassembler did not know how many arguments to assign to the
unresolved methods. Note: SSDTs can be dynamically loaded at
runtime and may or may not be available via the host OS.
To specify the tables needed to resolve external control method
references, the -e option can be used to specify the filenames.
Example iASL invocations:
iasl -e ssdt1.aml ssdt2.aml ssdt3.aml -d dsdt.aml
iasl -e dsdt.aml ssdt2.aml -d ssdt1.aml
iasl -e ssdt*.aml -d dsdt.aml
In addition, the -fe option can be used to specify a file containing
control method external declarations with the associated method
argument counts. Each line of the file must be of the form:
External (<method pathname>, MethodObj, <argument count>)
Invocation:
iasl -fe refs.txt -d dsdt.aml
root@dreampc:~#
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