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? > 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 > -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- 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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