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