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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Modules specific tests cases
# protect against multiple inclusion
if [ $FILE_MODULE ]; then
return 0
else
FILE_MODULE=DONE
fi
source cpu.sh
source cpufreq.sh
source governor.sh
# Check basic insmod/rmmod
# $1: module
test_basic_insmod_rmmod()
{
printf "** Test: Running ${FUNCNAME[0]} **\n\n"
printf "Inserting $1 module\n"
# insert module
insmod $1
if [ $? != 0 ]; then
ktap_exit_fail_msg "Insmod $1 failed\n"
fi
printf "Removing $1 module\n"
# remove module
rmmod $1
if [ $? != 0 ]; then
ktap_exit_fail_msg "rmmod $1 failed\n"
fi
printf "\n"
}
# Insert cpufreq driver module and perform basic tests
# $1: cpufreq-driver module to insert
# $2: If we want to play with CPUs (1) or not (0)
module_driver_test_single()
{
printf "** Test: Running ${FUNCNAME[0]} for driver $1 and cpus_hotplug=$2 **\n\n"
if [ $2 -eq 1 ]; then
# offline all non-boot CPUs
for_each_non_boot_cpu offline_cpu
printf "\n"
fi
# insert module
printf "Inserting $1 module\n\n"
insmod $1
if [ $? != 0 ]; then
printf "Insmod $1 failed\n"
return;
fi
if [ $2 -eq 1 ]; then
# online all non-boot CPUs
for_each_non_boot_cpu online_cpu
printf "\n"
fi
# run basic tests
cpufreq_basic_tests
# remove module
printf "Removing $1 module\n\n"
rmmod $1
if [ $? != 0 ]; then
printf "rmmod $1 failed\n"
return;
fi
# There shouldn't be any cpufreq directories now.
for_each_cpu cpu_should_not_have_cpufreq_directory
printf "\n"
}
# $1: cpufreq-driver module to insert
module_driver_test()
{
printf "** Test: Running ${FUNCNAME[0]} **\n\n"
# check if module is present or not
ls $1 > /dev/null
if [ $? != 0 ]; then
printf "$1: not present in `pwd` folder\n"
return;
fi
# test basic module tests
test_basic_insmod_rmmod $1
# Do simple module test
module_driver_test_single $1 0
# Remove CPUs before inserting module and then bring them back
module_driver_test_single $1 1
printf "\n"
}
# find governor name based on governor module name
# $1: governor module name
find_gov_name()
{
if [ $1 = "cpufreq_ondemand.ko" ]; then
printf "ondemand"
elif [ $1 = "cpufreq_conservative.ko" ]; then
printf "conservative"
elif [ $1 = "cpufreq_userspace.ko" ]; then
printf "userspace"
elif [ $1 = "cpufreq_performance.ko" ]; then
printf "performance"
elif [ $1 = "cpufreq_powersave.ko" ]; then
printf "powersave"
elif [ $1 = "cpufreq_schedutil.ko" ]; then
printf "schedutil"
fi
}
# $1: governor string, $2: governor module, $3: policy
# example: module_governor_test_single "ondemand" "cpufreq_ondemand.ko" 2
module_governor_test_single()
{
printf "** Test: Running ${FUNCNAME[0]} for $3 **\n\n"
backup_governor $3
# switch to new governor
printf "Switch from $CUR_GOV to $1\n"
switch_show_governor $3 $1
# try removing module, it should fail as governor is used
printf "Removing $2 module\n\n"
rmmod $2
if [ $? = 0 ]; then
printf "WARN: rmmod $2 succeeded even if governor is used\n"
insmod $2
else
printf "Pass: unable to remove $2 while it is being used\n\n"
fi
# switch back to old governor
printf "Switchback to $CUR_GOV from $1\n"
restore_governor $3
printf "\n"
}
# Insert cpufreq governor module and perform basic tests
# $1: cpufreq-governor module to insert
module_governor_test()
{
printf "** Test: Running ${FUNCNAME[0]} **\n\n"
# check if module is present or not
ls $1 > /dev/null
if [ $? != 0 ]; then
printf "$1: not present in `pwd` folder\n"
return;
fi
# test basic module tests
test_basic_insmod_rmmod $1
# insert module
printf "Inserting $1 module\n\n"
insmod $1
if [ $? != 0 ]; then
printf "Insmod $1 failed\n"
return;
fi
# switch to new governor for each cpu
for_each_policy module_governor_test_single $(find_gov_name $1) $1
# remove module
printf "Removing $1 module\n\n"
rmmod $1
if [ $? != 0 ]; then
printf "rmmod $1 failed\n"
return;
fi
printf "\n"
}
# test modules: driver and governor
# $1: driver module, $2: governor module
module_test()
{
printf "** Test: Running ${FUNCNAME[0]} **\n\n"
# check if modules are present or not
ls $1 $2 > /dev/null
if [ $? != 0 ]; then
printf "$1 or $2: is not present in `pwd` folder\n"
return;
fi
# TEST1: Insert gov after driver
# insert driver module
printf "Inserting $1 module\n\n"
insmod $1
if [ $? != 0 ]; then
printf "Insmod $1 failed\n"
return;
fi
# run governor tests
module_governor_test $2
# remove driver module
printf "Removing $1 module\n\n"
rmmod $1
if [ $? != 0 ]; then
printf "rmmod $1 failed\n"
return;
fi
# TEST2: Insert driver after governor
# insert governor module
printf "Inserting $2 module\n\n"
insmod $2
if [ $? != 0 ]; then
printf "Insmod $2 failed\n"
return;
fi
# run governor tests
module_driver_test $1
# remove driver module
printf "Removing $2 module\n\n"
rmmod $2
if [ $? != 0 ]; then
printf "rmmod $2 failed\n"
return;
fi
}
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