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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" <>
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
 Modified Files:
        src/sys/arch/ia64/acpi: acpi_machdep.c
        src/sys/arch/ia64/include: acpi_machdep.h
        src/sys/arch/x86/acpi: acpi_cpu_md.c
        src/sys/arch/x86/conf: files.x86
        src/sys/arch/x86/include: acpi_machdep.h
        src/sys/dev/acpi: acpi.c acpi_cpu.c acpi_cpu.h
 Added Files:
        src/sys/arch/x86/acpi: acpi_pdc.c
 Log Message:
 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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