linux.git/tools/power/cpupower, branch v4.16

cpupower: Remove FSF address

2017-12-15T15:27:39+00:00

Checkpatch in the kernel now complains about having the FSF address
in comments. Other tools such as rpmlint are now starting to do the
same thing. Remove the FSF address to reduce warnings on multiple tools.

Signed-off-by: Laura Abbott 
Acked-by: Dominik Brodowski 
Signed-off-by: Shuah Khan

Merge tag 'pm-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2017-11-30T23:45:55+00:00

Pull power management fixes from Rafael Wysocki:

 - add missing module information to the Mediatek cpufreq driver module
   (Jesse Chan)

 - fix config dependencies for the Loongson cpufreq driver (James Hogan)

 - fix two issues related to CPU offline in the cpupower utility
   (Abhishek Goel).

* tag 'pm-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: mediatek: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
  cpufreq: Add Loongson machine dependencies
  cpupower : Fix cpupower working when cpu0 is offline
  cpupowerutils: bench - Fix cpu online check

Merge tag 'linux-cpupower-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux

2017-11-18T14:05:31+00:00

Pull cpupower utility fixes for 4.15-rc2 from Shuah Khan:

"This update consists of fixes to tool's handling of offline cpus.

The first patch fixes the tool to find information on the cpu it
is running on, instead of always looking for cpu0 and failing if
cpu0 happens to be offline.

The second patch fixes the incorrect check for offline cpu status."

* tag 'linux-cpupower-4.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  cpupower : Fix cpupower working when cpu0 is offline
  cpupowerutils: bench - Fix cpu online check

kbuild: /bin/pwd -> pwd

2017-11-18T02:32:27+00:00

Most places use pwd and rely on $PATH lookup. Moving the remaining
absolute path /bin/pwd users over for consistency.

Also, a reason for doing /bin/pwd -> pwd instead of the other way around
is because I believe build systems should make little assumptions on
host filesystem layout. Case in point, we do this kind of patching
already in NixOS.

Ref. commit 028568d84da3cfca49f5f846eeeef01441d70451
("kbuild: revert $(realpath ...) to $(shell cd ... && /bin/pwd)").

Signed-off-by: Bjørn Forsman 
Signed-off-by: Masahiro Yamada

cpupower : Fix cpupower working when cpu0 is offline

2017-11-15T15:37:42+00:00

cpuidle_monitor used to assume that cpu0 is always online which is not
a valid assumption on POWER machines. This patch fixes this by getting
the cpu on which the current thread is running, instead of always using
cpu0 for monitoring which may not be online.

Signed-off-by: Abhishek Goel 
Signed-off-by: Shuah Khan

cpupowerutils: bench - Fix cpu online check

2017-11-15T15:37:35+00:00

cpupower_is_cpu_online was incorrectly checking for 0. This patch fixes
this by checking for 1 when the cpu is online.

Signed-off-by: Abhishek Goel 
Signed-off-by: Shuah Khan

Merge branches 'pm-devfreq' and 'pm-tools'

2017-11-13T00:41:39+00:00

* pm-devfreq:
  PM / devfreq: Define the constant governor name
  PM / devfreq: Remove unneeded conditional statement
  PM / devfreq: Show the all available frequencies
  PM / devfreq: Change return type of devfreq_set_freq_table()
  PM / devfreq: Use the available min/max frequency
  Revert "PM / devfreq: Add show_one macro to delete the duplicate code"
  PM / devfreq: Set min/max_freq when adding the devfreq device

* pm-tools:
  tools/power/cpupower: add libcpupower.so.0.0.1 to .gitignore
  tools/power/cpupower: Add 64 bit library detection
  MAINTAINERS: add maintainer for tools/power/cpupower
  cpupower: Fix no-rounding MHz frequency output

tools/power/cpupower: add libcpupower.so.0.0.1 to .gitignore

2017-11-09T17:52:22+00:00

Commit ac5a181d065d ("cpupower: Add cpuidle parts into library") added
libcpupower.so.0.0.1 which should be hidden from git commands.  This
patch changes the ignore to all libcpupower.so.* .

Signed-off-by: Prarit Bhargava 
Cc: Shuah Khan 
Signed-off-by: Shuah Khan

tools/power/cpupower: Add 64 bit library detection

2017-11-09T17:50:40+00:00

The kernel-tools-lib rpm is installing the library to /usr/lib64, and not
/usr/lib as the cpupower Makefile is doing in the kernel tree.  This
resulted in a conflict between the two libraries.  After looking at how
other tools installed libraries, and looking at the perf code in
tools/perf it looks like installing to /usr/lib64 for 64-bit arches is the
correct thing to do.

Checks with 'ldd cpupower' on SLES, RHEL, Fedora, and Ubuntu result in
the correct binary AFAICT:

[root@testsystem cpupower]# ldd cpupower | grep cpupower
        libcpupower.so.0 => /lib64/libcpupower.so.0 (0x00007f1dab447000)

Commit ac5a181d065d ("cpupower: Add cpuidle parts into library") added a
new cpupower library version.  On Fedora, executing the cpupower binary
then resulted in this error

[root@testsystem cpupower]# ./cpupower monitor
./cpupower: symbol lookup error: ./cpupower: undefined symbol:
get_cpu_topology

64-bit libraries should be installed to /usr/lib64, and other libraries
should be installed to /usr/lib.

This code was taken from the perf Makefile.config which supports /usr/lib
and /usr/lib64.

Signed-off-by: Prarit Bhargava 
Cc: Shuah Khan 
Signed-off-by: Shuah Khan

cpupower: Fix no-rounding MHz frequency output

2017-11-03T15:28:02+00:00

'cpupower frequency-info -ln' returns kHz values on systems with MHz range
minimum CPU frequency range.  For example, on a 800MHz to 4.20GHz system
the command returns

hardware limits: 800000 MHz - 4.200000 GHz

The code that causes this error can be removed.  The next else if clause
will handle the output correctly such that

hardware limits: 800.000 MHz - 4.200000 GHz

is displayed correctly.

[v2]: Remove two lines instead of fixing broken code.

Signed-off-by: Prarit Bhargava 
Cc: Thomas Renninger 
Cc: Stafford Horne 
Cc: Shuah Khan 
Reviewed-by: Stafford Horne 
Signed-off-by: Shuah Khan