linux.git/tools/power/cpupower/utils, branch v3.14

Merge branches 'acpi-tools' and 'pm-tools'

2014-01-17T00:59:48+00:00

* acpi-tools:
  ACPICA: acpidump: Update MAINTAINERS file to include tools folder for ACPI/ACPICA.
  ACPICA: acpidump: Enable tools Makefile to include acpi tools.
  ACPICA: acpidump: Cleanup tools/power/acpi makefiles.

* pm-tools:
  PM / tools: new tool for suspend/resume performance optimization
  cpupower: Fix sscanf robustness in cpufreq-set

cpupower: Fix sscanf robustness in cpufreq-set

2014-01-08T14:10:39+00:00

The cpufreq-set tool has a missing length check. This is basically
just correctness but still should get fixed.

One of a set of sscanf problems reported by Jackie Chang

Signed-off-by: Alan Cox 
[rjw: Subject]
Signed-off-by: Rafael J. Wysocki

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

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

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