[PATCH 1/3] cpufreq: tests: Cpufreq test to check if all declared freqs can be set

* [PATCH 1/3] cpufreq: tests: Cpufreq test to check if all declared freqs can be set
@ 2015-01-26 10:41 Lukasz Majewski
  2015-01-26 10:41 ` [PATCH 2/3] cpufreq: tests: Provide test to check if all supported governors are working Lukasz Majewski
  2015-01-26 10:41 ` [PATCH 3/3] doc: cpufreq: tests: Provide cpufreq tests README Lukasz Majewski
  0 siblings, 2 replies; 7+ messages in thread
From: Lukasz Majewski @ 2015-01-26 10:41 UTC (permalink / raw)
  To: Viresh Kumar
  Cc: Eduardo Valentin, Linux PM list, Lukasz Majewski,
	Abhilash Kesavan, Abhilash Kesavan, Chanwoo Choi, Thomas Abraham,
	Kevin Hilman, Kevin Hilman, a.nitecki, Lukasz Majewski

This test allows checking if all declared frequencies can be set on tested
board.

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
---
 tools/testing/cpufreq/cpufreq_freq_test.sh | 149 +++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100755 tools/testing/cpufreq/cpufreq_freq_test.sh

diff --git a/tools/testing/cpufreq/cpufreq_freq_test.sh b/tools/testing/cpufreq/cpufreq_freq_test.sh
new file mode 100755
index 0000000..6dfd08b
--- /dev/null
+++ b/tools/testing/cpufreq/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: Compiled 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, 2014-2015
+#
+# Author: Lukasz Majewski <l.majewski@samsung.com>
+
+set +x
+
+COLOUR_RED="\33[31m"
+COLOUR_BLUE="\33[34m"
+COLOUR_GREEN="\33[32m"
+COLOUR_DEFAULT="\33[0m"
+
+T_PATH=/sys/devices/system/cpu/cpu0/cpufreq
+BOOST_PATH=/sys/devices/system/cpu/cpufreq
+
+if [ ! -d "$T_PATH" ]; then
+    printf "   $COLOUR_RED No path to CPUFREQ $COLOUR_DEFAULT\n"
+    exit 1
+fi
+
+ERRORS=0
+
+OLD_GOV=`cat $T_PATH/scaling_governor`
+echo "CURRENT GOVERNOR: $OLD_GOV"
+echo "SET GOVERNOR: performance"
+echo "performance" > $T_PATH/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_PATH/boost ]; then
+	cpufreq_boost_state $BOOST_STATE
+    fi
+
+    echo "SET GOVERNOR: $OLD_GOV"
+    echo $OLD_GOV > $T_PATH/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_PATH/cpuinfo_cur_freq`
+    if [ $1 -eq $CURR_FREQ ]; then
+	printf "\t$COLOUR_GREEN OK $COLOUR_DEFAULT\n"
+    else
+	printf "$COLOUR_RED CURRENT $CURR_FREQ $COLOUR_DEFAULT\n"
+	ERRORS=$(( $ERRORS + 1 ))
+	#die
+    fi
+    kill -9 $pid
+    wait $! 2>/dev/null
+}
+
+function cpufreq_set_freq {
+    echo $1 > $T_PATH/scaling_max_freq || die $?
+    printf "FREQ:$COLOUR_GREEN %s $COLOUR_DEFAULT" $1
+}
+
+function cpufreq_boost_state {
+   echo $1 > $BOOST_PATH/boost
+}
+
+function cpufreq_boost_status {
+   cat $BOOST_PATH/boost
+}
+
+if [ -f $BOOST_PATH/boost ]; then
+    echo "######################################"
+    echo "TEST BOOST OPERATION"
+    echo "######################################"
+
+    BOOST_STATE=$(cpufreq_boost_status)
+    if [ $BOOST_STATE -eq 0 ]; then
+	cpufreq_boost_state 1
+    fi
+    test_freqs1 $T_PATH/scaling_boost_frequencies 1
+fi
+
+echo "######################################"
+echo "TEST AVAILABLE FREQS"
+echo "######################################"
+test_freqs1 $T_PATH/scaling_available_frequencies
+
+echo "######################################"
+echo "TEST FREQS SWITCHING"
+echo "######################################"
+test_freqs2 $T_PATH/scaling_available_frequencies
+
+echo "######################################"
+echo "ERRORS: $ERRORS"
+echo "######################################"
+
+restore
+exit 0
-- 
2.0.0.rc2


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