avg 73c1cd9e11 acpi_cpu: separate a notion of current deepest allowed+available Cx level
... from a user-set persistent limit on the said level.
Allow to set the user-imposed limit below current deepest available level
as the available levels may be dynamically changed by ACPI platform
in both directions.
Allow "Cmax" as an input value for cx_lowest sysctls to mean that there
is not limit and OS can use all available C-states.
Retire global cpu_cx_count as it no longer serves any meaningful
purpose.

Reviewed by:	jhb, gianni, sbruno
Tested by:	sbruno, Vitaly Magerya <vmagerya@gmail.com>
MFC after:	2 weeks
2012-07-13 08:11:55 +00:00
..