Commit 650a37f3 authored by Len Brown's avatar Len Brown
Browse files

tools/power turbostat: fix IVB support

Initial IVB support went into turbostat in Linux-3.1:

(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: default avatarLen Brown <>
parent d15cf7c1
......@@ -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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