From 4ab60c3f32c721e46217e762bcd3e55a8f659c04 Mon Sep 17 00:00:00 2001
From: Stratos Karafotis <stratosk@semaphore.gr>
Date: Fri, 18 Jul 2014 08:37:24 -0700
Subject: [PATCH] cpufreq: intel_pstate: Disable interrupts during MSRs reading

According to Intel 64 and IA-32 Architectures SDM, Volume 3,
Chapter 14.2, "Software needs to exercise care to avoid delays
between the two RDMSRs (for example interrupts)".

So, disable interrupts during reading MSRs IA32_APERF and IA32_MPERF.
This should increase the accuracy of the calculations.

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
Reading git-format-patch failed