| #!/bin/bash |
| # |
| # PM-QA validation test suite for the power management on Linux |
| # |
| # Copyright (C) 2011, Linaro Limited. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License |
| # as published by the Free Software Foundation; either version 2 |
| # of the License, or (at your option) any later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write to the Free Software |
| # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| # |
| # Contributors: |
| # Daniel Lezcano <daniel.lezcano@linaro.org> (IBM Corporation) |
| # - initial API and implementation |
| # |
| |
| # URL : https://wiki.linaro.org/WorkingGroups/PowerManagement/Doc/QA/Scripts#cpufreq_09 |
| |
| source ../include/functions.sh |
| |
| CPUBURN=../utils/cpuburn |
| |
| check_powersave() { |
| |
| local cpu=$1 |
| local minfreq=$(get_min_frequency $cpu) |
| local curfreq=$(get_frequency $cpu) |
| |
| set_governor $cpu powersave |
| |
| wait_latency $cpu |
| curfreq=$(get_frequency $cpu) |
| |
| check "'powersave' sets frequency to $(frequnit $minfreq)" "test \"$curfreq\" == \"$minfreq\"" |
| if [ "$?" != "0" ]; then |
| return 1 |
| fi |
| |
| $CPUBURN $cpu & |
| pid=$! |
| |
| wait_latency $cpu |
| curfreq=$(get_frequency $cpu) |
| kill $pid |
| |
| check "'powersave' frequency $(frequnit $minfreq) is fixed" "test \"$curfreq\" == \"$minfreq\"" |
| if [ "$?" != "0" ]; then |
| return 1 |
| fi |
| |
| return 0 |
| } |
| |
| save_governors |
| |
| if [ $(id -u) != 0 ]; then |
| log_skip "run as non-root" |
| exit 0 |
| fi |
| |
| supported=$(cat $CPU_PATH/cpu0/cpufreq/scaling_available_governors | grep "powersave") |
| if [ -z "$supported" ]; then |
| log_skip "powersave not supported" |
| exit 0 |
| fi |
| |
| trap "restore_governors; sigtrap" SIGHUP SIGINT SIGTERM |
| |
| for_each_cpu check_powersave |
| |
| restore_governors |