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PR/42583 CVS commit: src/sys
The following reply was made to PR kern/42583; it has been noted by GNATS.
From: "Jukka Ruohonen" <jruoho%netbsd.org@localhost>
Subject: PR/42583 CVS commit: src/sys
Date: Sun, 12 Jun 2011 10:11:53 +0000
Module Name: src
Committed By: jruoho
Date: Sun Jun 12 10:11:53 UTC 2011
src/sys/dev/acpi: acpi.c acpi_cpu.c acpi_cpu.h
Move the evaluation of the _PDC control method out from the acpicpu(4)
driver to the main acpi(4) stack. Follow Linux and evaluate it early.
Should fix PR port-amd64/42895, possibly also PR kern/42583, and many
other comparable bugs.
A common sense explanation is that Intel supplies additional CPU tables to
OEMs. BIOS writers do not bother to modify their DSDTs, but instead load
these extra tables dynamically as secondary SSDT tables. The actual Load()
happens when the _PDC method is invoked, and thus namespace errors occur
when the CPU-specific ACPI methods are not yet present but referenced in the
AML by various drivers, including, but not limited to, acpitz(4).
To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/sys/arch/ia64/acpi/acpi_machdep.c
cvs rdiff -u -r1.3 -r1.4 src/sys/arch/ia64/include/acpi_machdep.h
cvs rdiff -u -r1.60 -r1.61 src/sys/arch/x86/acpi/acpi_cpu_md.c
cvs rdiff -u -r0 -r1.1 src/sys/arch/x86/acpi/acpi_pdc.c
cvs rdiff -u -r1.69 -r1.70 src/sys/arch/x86/conf/files.x86
cvs rdiff -u -r1.8 -r1.9 src/sys/arch/x86/include/acpi_machdep.h
cvs rdiff -u -r1.242 -r1.243 src/sys/dev/acpi/acpi.c
cvs rdiff -u -r1.40 -r1.41 src/sys/dev/acpi/acpi_cpu.c \
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
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