From 650a37f32d2bc16fa802075be579802bc4ec4132 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Sun, 3 Jun 2012 23:34:44 -0400
Subject: [PATCH] tools/power turbostat: fix IVB support
Initial IVB support went into turbostat in Linux-3.1:
553575f1ae048aa44682b46b3c51929a0b3ad337
(tools turbostat: recognize and run properly on IVB)
However, when running on IVB, turbostat would fail
to report the new couters added with SNB, c7, pc2 and pc7.
So in scenarios where these counters are non-zero on IVB,
turbostat would report erroneous residencey results.
In particular c7 time would be added to c1 time,
since c1 time is calculated as "that which is left over".
Also, turbostat reports MHz capabilities when passed
the "-v" option, and it would incorrectly report 133MHz
bclk instead of 100MHz bclk for IVB, which would inflate
GHz reported with that option.
This patch is a backport of a fix already included in turbostat v2.
Signed-off-by: Len Brown <len.brown@intel.com>
---
tools/power/x86/turbostat/turbostat.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index d5d6a3dc9bac95..16de7ad4850fa5 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -933,6 +933,8 @@ int is_snb(unsigned int family, unsigned int model)
switch (model) {
case 0x2A:
case 0x2D:
+ case 0x3A: /* IVB */
+ case 0x3D: /* IVB Xeon */
return 1;
}
return 0;
--
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