From d253d2a52676cfa3d89b8f0737a08ce7db665207 Mon Sep 17 00:00:00 2001
From: Brennan Shacklett <brennan@genyes.org>
Date: Mon, 21 Oct 2013 09:20:32 -0700
Subject: [PATCH] intel_pstate: Improve accuracy by not truncating until final
 result

This patch addresses Bug 60727
(https://bugzilla.kernel.org/show_bug.cgi?id=60727)
which was due to the truncation of intermediate values in the
calculations, which causes the code to consistently underestimate the
current cpu frequency, specifically 100% cpu utilization was truncated
down to the setpoint of 97%. This patch fixes the problem by keeping
the results of all intermediate calculations as fixed point numbers
rather scaling them back and forth between integers and fixed point.

References: https://bugzilla.kernel.org/show_bug.cgi?id=60727
Signed-off-by: Brennan Shacklett <bpshacklett@gmail.com>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
Reading git-format-patch failed