kernel/linux.git/tools/power/cpupower, branch v3.13.3

cpupower: Fix segfault due to incorrect getopt_long arugments

2013-12-17T19:29:30+00:00

If a user calls 'cpupower set --perf-bias 15', the process will end with a SIGSEGV in libc because cpupower-set passes a NULL optarg to the atoi call. This is because the getopt_long structure currently has all of the options as having an optional_argument when they really have a required argument. We change the structure to use required_argument to match the short options and it resolves the issue. This fixes https://bugzilla.redhat.com/show_bug.cgi?id=1000439 Signed-off-by: Josh Boyer Cc: Dominik Brodowski Cc: Thomas Renninger Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds

tools: cpupower: fix wrong err msg not supported vs not available

2013-11-25T22:10:50+00:00

idlestates in sysfs are counted from 0. This fixes a wrong error message. Current behavior on a machine with 4 sleep states is: cpupower idle-set -e 4 Idlestate 4 enabled on CPU 0 -----Wrong--------------------- cpupower idle-set -e 5 Idlestate enabling not supported by kernel -----Must and now will be ----- cpupower idle-set -e 5 Idlestate 6 not available on CPU 0 ------------------------------- cpupower idle-set -e 6 Idlestate 6 not available on CPU 0 Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

tools: cpupower: Add cpupower-idle-set(1) manpage

2013-11-25T22:10:50+00:00

The cpupower idle-set subcommand was introduce recently. This patch provides the missing manpage. If cpupower is properly installed it will show up automatically (similar to git), when invoking: cpupower help idle-set or cpupower idle-set --help Some parts have been taken over and adjusted from git commit 62d6ae880e3e76098 documentation submitted by Carsten Emde. Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

cpupower: Add Haswell family 0x45 specific idle monitor to show PC8,9,10 states

2013-07-04T23:52:19+00:00

This specific processor supports 3 new package sleep states. Provide a monitor, so that the user can see their usage. Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

cpupower: Haswell also supports the C-states introduced with SandyBridge

2013-07-04T23:52:19+00:00

Add Haswell model numbers to snb_register() as it also supports the C-states introduced in SandyBridge processors. [rjw: Changelog] Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

cpupower: Introduce idle-set subcommand and C-state enabling/disabling

2013-07-04T23:52:19+00:00

Example: cpupower idle-set -d 3 will disable C-state 3 on all processors (set commands are active on all CPUs by default), same as: cpupower -c all idle-set -d 3 Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

cpupower: Implement disabling of cstate interface

2013-07-04T23:52:19+00:00

Latest kernel allows to disable C-states via: /sys/devices/system/cpu/cpuX/cpuidle/stateY/disable This patch provides lower level sysfs access functions to make use of this interface. A later patch will implement the higher level stuff. Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

cpupower: Make idlestate usage unsigned

2013-07-04T23:52:19+00:00

Use unsigned int as the data type for some variables related to CPU idle states which allows the code to be simplified slightly. [rjw: Changelog] Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki

treewide: Fix typos in kernel messages

2013-03-31T15:50:31+00:00

Correct spelling typos in various part of printk. Signed-off-by: Masanari Iida Acked-by: Randy Dunlap Signed-off-by: Jiri Kosina

cpupower: IvyBridge (0x3a and 0x3e models) support

2012-11-27T22:07:20+00:00

Signed-off-by: Thomas Renninger Signed-off-by: Rafael J. Wysocki