| #!/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` |
| if [ $cores -gt 1 ] |
| then |
| stop mpdecision |
| fi |
| while [ $count -lt $cores ] |
| do |
| if [ $count -gt 0 ] |
| then |
| cpupath_enable=$cpupath$count"/online" |
| echo 1 > $cpupath_enable |
| fi |
| etmpath_enable=$etmpath$count"/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 |
| if [ $cores -gt 1 ] |
| then |
| start mpdecision |
| fi |
| 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` |
| if [ $cores -gt 1 ] |
| then |
| stop mpdecision |
| fi |
| while [ $count -lt $cores ] |
| do |
| if [ $count -gt 0 ] |
| then |
| cpupath_enable=$cpupath$count"/online" |
| echo 1 > $cpupath_enable |
| fi |
| etmpath_enable=$etmpath$count"/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 |
| if [ $cores -gt 1 ] |
| then |
| start mpdecision |
| fi |
| 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 |
| } |
| |
| |