M7350/qcom-opensource/kernel/kernel-tests/coresight/cs_common.sh
2024-09-09 08:52:07 +00:00

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#!/bin/sh
# Copyright (c) 2013, The Linux Foundation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of The Linux Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
cpupath="/sys/devices/system/cpu/cpu"
cpuinfo="/proc/cpuinfo"
csrpath="/sys/bus/coresight/devices/coresight-csr"
debugfs="/sys/kernel/debug"
etmpath="/sys/bus/coresight/devices/coresight-etm"
f0path="/sys/bus/coresight/devices/coresight-funnel-in0"
f1path="/sys/bus/coresight/devices/coresight-funnel-in1"
fmergpath="/sys/bus/coresight/devices/coresight-funnel-merg"
fkpsspath="/sys/bus/coresight/devices/coresight-funnel-kpss"
fmmsspath="/sys/bus/coresight/devices/coresight-funnel-mmss"
replicatorpath="/sys/bus/coresight/devices/coresight-replicator"
stmpath="/sys/bus/coresight/devices/coresight-stm"
tmcetfpath="/sys/bus/coresight/devices/coresight-tmc-etf"
tmcetrpath="/sys/bus/coresight/devices/coresight-tmc-etr"
tpiupath="/sys/bus/coresight/devices/coresight-tpiu"
#===============================================================
#function to enable etm for all cores
#returns 0 if etm for all cores are present and could be written to, 1 otherwise
#===============================================================
etm_enable_all_cores() {
count=0
retval=0
cores=`grep -c "processor" $cpuinfo`
stop mpdecision
while [ $count -lt $cores ]
do
etmpath_enable=$etmpath$count"/enable"
cpupath_enable=$cpupath$count"/online"
echo 1 > $cpupath_enable
if [ -f $etmpath_enable ]
then
echo 1 > $etmpath_enable
else
echo "FAIL: No coresight-etm$count driver present ****"
retval=1
fi
count=$(( count + 1 ))
done
start mpdecision
return $retval
}
#=============================================================
#function to test if etm of all cores are enabled
#returns 0 if all cores are enabled, 1 otherwise
#=============================================================
etm_test_if_enabled() {
count=0
retval=0
cores=`grep -c "processor" $cpuinfo`
while [ $count -lt $cores ]
do
etmpath_enable=$etmpath$count"/enable"
if [ -f $etmpath_enable ]
then
read value < $etmpath_enable
if [ $value != "1" ]
then
echo "FAIL: coresight-etm$count device not enabled ****"
retval=1
fi
else
retval=1
fi
count=$(( count + 1 ))
done
return $retval
}
#===============================================================
#function to disable etm for all cores
#returns 0 if etm for all cores are present and could be written to, 1 otherwise
#===============================================================
etm_disable_all_cores() {
count=0
retval=0
cores=`grep -c "processor" $cpuinfo`
stop mpdecision
while [ $count -lt $cores ]
do
etmpath_enable=$etmpath$count"/enable"
cpupath_enable=$cpupath$count"/online"
echo 1 > $cpupath_enable
if [ -f $etmpath_enable ]
then
echo 0 > $etmpath_enable
else
echo "FAIL: No coresight-etm$count driver present ****"
retval=1
fi
count=$(( count + 1 ))
done
start mpdecision
return $retval
}
#=============================================================
#function to test if etm of all cores are disabled
#returns 0 if all cores are disabled, 1 otherwise
#=============================================================
etm_test_if_disabled() {
count=0
retval=0
cores=`grep -c "processor" $cpuinfo`
while [ $count -lt $cores ]
do
etmpath_enable=$etmpath$count"/enable"
if [ -f $etmpath_enable ]
then
read value < $etmpath_enable
if [ $value != "0" ]
then
echo "FAIL: coresight-etm$count device not disabled ****"
retval=1
fi
else
retval=1
fi
count=$(( count + 1 ))
done
return $retval
}
#==============================================================
#function to enable stm
#returns 0 if device is written to, 1 otherwise
#==============================================================
stm_enable() {
stmpath_enable=$stmpath"/enable"
if [ -f $stmpath_enable ]
then
echo 1 > $stmpath_enable
retval=0
else
echo "FAIL: No coresight-stm driver present ****"
retval=1
fi
return $retval
}
#==============================================================
#function to test if stm is enabled
#returns 0 on success, 1 otherwise
#==============================================================
stm_test_if_enabled() {
stmpath_enable=$stmpath"/enable"
if [ -f $stmpath_enable ]
then
read value < $stmpath_enable
if [ $value = "1" ]
then
retval=0
else
echo "FAIL: coresight-stm device not enabled ****"
retval=1
fi
else
retval=1
fi
return $retval
}
#==============================================================
#function to disable stm
#returns 0 if device could be written to, 1 otherwise
#==============================================================
stm_disable() {
stmpath_enable=$stmpath"/enable"
if [ -f $stmpath_enable ]
then
echo 0 > $stmpath_enable
retval=0
else
echo "FAIL: No coresight-stm driver present ****"
retval=1
fi
return $retval
}
#===============================================================
#function to test if stm is disabled
#returns 0 on success, 1 otherwise
#===============================================================
stm_test_if_disabled() {
stmpath_enable=$stmpath"/enable"
if [ -f $stmpath_enable ]
then
read value < $stmpath_enable
if [ $value = "0" ]
then
retval=0
else
echo "FAIL: coresight-stm device not disabled ****"
retval=1
fi
else
retval=1
fi
return $retval
}