Date: Sat, 5 Apr 2008 12:36:31 +0100 From: Rui Paulo <rpaulo@FreeBSD.org> To: freebsd-acpi@freebsd.org Cc: njl@freebsd.org Subject: acpi_cpu.c validation of _CST package Message-ID: <20080405113631.GA868@fnop.net>
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Hi,
The attached patch adds a missing functionality to acpi_cpu.c
regarding to the revalidation of the _CST package when the notify
handler is called.
This is needed, for example, in Apple MacBooks:
AC plugged in:
% sysctl dev.cpu.{0,1}.cx_supported
dev.cpu.0.cx_supported: C1/1 C2/1
dev.cpu.1.cx_supported: C1/1 C2/1
AC plugged out:
% sysctl dev.cpu.{0,1}.cx_supported
dev.cpu.0.cx_supported: C1/1 C2/1 C3/57
dev.cpu.1.cx_supported: C1/1 C2/1 C3/57
I'm not sure if this is the best way to do it and I have doubts about
the locking.
Comments?
--
Rui Paulo
help
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