From: Dirk Brandewie Date: Thu, 6 Nov 2014 17:40:47 +0000 (-0800) Subject: intel_pstate: Add support for HWP X-Git-Tag: omap-for-v3.19/fixes-rc1~136^2~1^2~6^2~7^2~2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2f86dc4cddcb21290ca099e1dce2a53533c86e0b;p=pandora-kernel.git intel_pstate: Add support for HWP Add support of Hardware Managed Performance States (HWP) described in Volume 3 section 14.4 of the SDM. With HWP enbaled intel_pstate will no longer be responsible for selecting P states for the processor. intel_pstate will continue to register to the cpufreq core as the scaling driver for CPUs implementing HWP. In HWP mode intel_pstate provides three functions reporting frequency to the cpufreq core, support for the set_policy() interface from the core and maintaining the intel_pstate sysfs interface in /sys/devices/system/cpu/intel_pstate. User preferences expressed via the set_policy() interface or the sysfs interface are forwared to the CPU via the HWP MSR interface. Signed-off-by: Dirk Brandewie Signed-off-by: Rafael J. Wysocki --- Reading git-diff-tree failed