Hi Rafael, > On Friday, July 18, 2014 12:23:05 PM Lukasz Majewski wrote: > > This commit adds first regression test "cpufreq_freq_test.sh" for > > the cpufreq subsystem. > > Care to add any description of how it is supposed to work and what it > is going to test? Ok. I will extend the description in the README file. > > > Signed-off-by: Lukasz Majewski <l.majewski@xxxxxxxxxxx> > > --- > > drivers/cpufreq/tests/README | 23 +++++ > > drivers/cpufreq/tests/cpufreq_freq_test.sh | 149 > > +++++++++++++++++++++++++++++ 2 files changed, 172 insertions(+) > > create mode 100644 drivers/cpufreq/tests/README > > create mode 100755 drivers/cpufreq/tests/cpufreq_freq_test.sh > > > > diff --git a/drivers/cpufreq/tests/README > > b/drivers/cpufreq/tests/README new file mode 100644 > > index 0000000..66638d2 > > --- /dev/null > > +++ b/drivers/cpufreq/tests/README > > @@ -0,0 +1,23 @@ > > +This file contains list of cpufreq's available regression tests > > with a short +usage description. > > + > > +1. cpufreq_freq_test.sh > > + > > +Description: > > +------------ > > +This test is supposed to test if cpufreq attributes exported by > > sysfs are +exposing a correct values. > > + > > +It can work with or without boost enabled and helps spotting > > errors related to +cpufreq and common clock framework. > > + > > +Used attributes: > > +---------------- > > +- "scaling_available_frequencies" > > +- "cpuinfo_cur_freq" > > +- "scaling_governor" > > + > > +Target devices: > > +--------------- > > + > > +All devices which exports mentioned above sysfs attributes. > > \ No newline at end of file > > diff --git a/drivers/cpufreq/tests/cpufreq_freq_test.sh > > b/drivers/cpufreq/tests/cpufreq_freq_test.sh new file mode 100755 > > index 0000000..53156ca > > --- /dev/null > > +++ b/drivers/cpufreq/tests/cpufreq_freq_test.sh > > @@ -0,0 +1,149 @@ > > +#!/bin/bash > > +# > > +# This file provides a simple mean to test if all declared freqs at > > +# "scaling_available_frequencies" can be set and if > > "cpuinfo_cur_freq" +# returns this value. > > +# > > +# Usage: ./cpufreq_freq_test.sh > > +# Requisite: Compile in "performance" governor > > +# > > +# 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, you can access it online at > > +# http://www.gnu.org/licenses/gpl-2.0.html. > > +# > > +# Copyright (C) Samsung Electronics, 2014 > > +# > > +# Author: Lukasz Majewski <l.majewski@xxxxxxxxxxx> > > + > > +set +x > > + > > +COLOUR_RED="\33[31m" > > +COLOUR_BLUE="\33[34m" > > +COLOUR_GREEN="\33[32m" > > +COLOUR_DEFAULT="\33[0m" > > + > > +T_PATCH=/sys/devices/system/cpu/cpu0/cpufreq > > +BOOST_PATCH=/sys/devices/system/cpu/cpufreq > > + > > +if [ ! -d "$T_PATCH" ]; then > > + printf " $COLOUR_RED No patch to CPUFREQ $COLOUR_DEFAULT\n" > > + exit 1 > > +fi > > + > > +ERRORS=0 > > + > > +OLD_GOV=`cat $T_PATCH/scaling_governor` > > +echo "CURRENT GOVERNOR: $OLD_GOV" > > +echo "SET GOVERNOR: performance" > > +echo "performance" > $T_PATCH/scaling_governor > > + > > +function test_freqs1 { > > + FREQS=`cat $1` > > + for I in $FREQS; do > > + cpufreq_set_freq $I > > + if [ "$2" ]; then > > + printf "$COLOUR_BLUE BOOST $COLOUR_DEFAULT" $I > > + fi > > + cpufreq_test_freq $I > > + done > > +} > > + > > +function test_freqs2 { > > + FREQ=`cat $1` > > + FREQS_ARRAY=($FREQ) > > + > > + for freq in ${FREQS_ARRAY[@]} > > + do > > + echo "REFERENCE FREQ: $freq" > > + for f in ${FREQS_ARRAY[@]} > > + do > > + cpufreq_set_freq $freq > > + echo -n "----> " > > + cpufreq_set_freq $f > > + cpufreq_test_freq $f > > + done > > + done > > +} > > + > > +function restore { > > + if [ -f $BOOST_PATCH/boost ]; then > > + cpufreq_boost_state $BOOST_STATE > > + fi > > + > > + echo "SET GOVERNOR: $OLD_GOV" > > + echo $OLD_GOV > $T_PATCH/scaling_governor > > +} > > + > > +function die { > > + printf " $COLOUR_RED FAILED $COLOUR_DEFAULT\n" > > + restore_gov > > + exit 1 > > +} > > + > > +function cpufreq_test_freq { > > + gzip < /dev/urandom > /dev/null & > > + pid=$! > > + sleep 0.1 > > + CURR_FREQ=`cat $T_PATCH/cpuinfo_cur_freq` > > + if [ $1 -eq $CURR_FREQ ]; then > > + printf "\t$COLOUR_GREEN OK $COLOUR_DEFAULT\n" > > + else > > + printf "$COLOUR_RED CURRENT $CURR_FREQ $COLOUR_DEFAULT\n" > > + ERRORS=`expr $ERRORS + 1` > > + #die > > + fi > > + kill -9 $pid > > + wait $! 2>/dev/null > > +} > > + > > +function cpufreq_set_freq { > > + echo $1 > $T_PATCH/scaling_max_freq || die $? > > + printf "FREQ:$COLOUR_GREEN %s $COLOUR_DEFAULT" $1 > > +} > > + > > +function cpufreq_boost_state { > > + echo $1 > $BOOST_PATCH/boost > > +} > > + > > +function cpufreq_boost_status { > > + cat $BOOST_PATCH/boost > > +} > > + > > +if [ -f $BOOST_PATCH/boost ]; then > > + echo "######################################" > > + echo "TEST BOOST OPERATION" > > + echo "######################################" > > + > > + BOOST_STATE=$(cpufreq_boost_status) > > + if [ $BOOST_STATE -eq 0 ]; then > > + cpufreq_boost_state 1 > > + fi > > + test_freqs1 $T_PATCH/scaling_boost_frequencies 1 > > +fi > > + > > +echo "######################################" > > +echo "TEST AVAILABLE FREQS" > > +echo "######################################" > > +test_freqs1 $T_PATCH/scaling_available_frequencies > > + > > +echo "######################################" > > +echo "TEST FREQS SWITCHING" > > +echo "######################################" > > +test_freqs2 $T_PATCH/scaling_available_frequencies > > + > > +echo "######################################" > > +echo "ERRORS: $ERRORS" > > +echo "######################################" > > + > > +restore > > +exit 0 > > > -- Best regards, Lukasz Majewski Samsung R&D Institute Poland (SRPOL) | Linux Platform Group -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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