Copy stable/10@r272459 to releng/10.1 as part ofthe 10.1-RELEASE process.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
MFC r259284,r259287Add PMU-based CPU frequency scalling. This is used on most TitaniumPowerBooks.
Add PMU-based CPU frequency scaling. This method is used on most TitaniumPowerBooks.MFC after: 1 month