CVS commit: src/sys/dev/acpi

[Jukka Ruohonen <jruoho%netbsd.org@localhost>]

Module Name:    src
Committed By:   jruoho
Date:           Fri Jul 23 08:11:49 UTC 2010

Modified Files:
        src/sys/dev/acpi: acpi_cpu.h acpi_cpu_cstate.c

Log Message:
Add a new flag that determines whether we should check for bus master
activity (BM_STS) by reading from the PM1 register. According to the Intel
processor specification for ACPI, the FFH GAS encoding may provide a hint
that the check is not required. This may help some systems to enter C2/C3
even when e.g. usb(4) keeps the BM_STS bit always enabled.


To generate a diff of this commit:
cvs rdiff -u -r1.4 -r1.5 src/sys/dev/acpi/acpi_cpu.h
cvs rdiff -u -r1.6 -r1.7 src/sys/dev/acpi/acpi_cpu_cstate.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.