Commit 6751faf3 authored by Viresh Kumar's avatar Viresh Kumar Committed by Shuah Khan

selftest: cpufreq: Add support to test cpufreq modules

This patch adds support for cpufreq modules like cpufreq drivers and
cpufreq governors. The tests will insert the modules in different orders
and them perform basic cpufreq tests. The modules are then removed from
the kernel.
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarShuah Khan <shuahkh@osg.samsung.com>
parent b03eaf8d
all:
TEST_PROGS := main.sh
TEST_FILES := cpu.sh cpufreq.sh governor.sh
TEST_FILES := cpu.sh cpufreq.sh governor.sh module.sh
include ../lib.mk
......
......@@ -3,6 +3,7 @@
source cpu.sh
source cpufreq.sh
source governor.sh
source module.sh
FUNC=basic # do basic tests by default
OUTFILE=cpufreq_selftest
......@@ -12,12 +13,15 @@ CPUFREQROOT=
helpme()
{
printf "Usage: $0 [-h] [-to args]
printf "Usage: $0 [-h] [-todg args]
[-h <help>]
[-o <output-file-for-dump>]
[-t <basic: Basic cpufreq testing
suspend: suspend/resume,
hibernate: hibernate/resume>]
hibernate: hibernate/resume,
modtest: test driver or governor modules. Only to be used with -d or -g options>]
[-d <driver's module name: only with \"-t modtest>\"]
[-g <governor's module name: only with \"-t modtest>\"]
\n"
exit 2
}
......@@ -56,14 +60,14 @@ prerequisite()
parse_arguments()
{
while getopts ht:o: arg
while getopts ht:o:d:g: arg
do
case $arg in
h) # --help
helpme
;;
t) # --func_type (Function to perform: basic, suspend, hibernate (default: basic))
t) # --func_type (Function to perform: basic, suspend, hibernate, modtest (default: basic))
FUNC=$OPTARG
;;
......@@ -71,6 +75,14 @@ parse_arguments()
OUTFILE=$OPTARG
;;
d) # --driver-mod-name (Name of the driver module)
DRIVER_MOD=$OPTARG
;;
g) # --governor-mod-name (Name of the governor module)
GOVERNOR_MOD=$OPTARG
;;
\?)
helpme
;;
......@@ -83,7 +95,7 @@ do_test()
# Check if CPUs are managed by cpufreq or not
count=$(count_cpufreq_managed_cpus)
if [ $count = 0 ]; then
if [ $count = 0 -a $FUNC != "modtest" ]; then
echo "No cpu is managed by cpufreq core, exiting"
exit 2;
fi
......@@ -101,6 +113,29 @@ do_test()
do_suspend "hibernate" 1
;;
"modtest")
# Do we have modules in place?
if [ -z $DRIVER_MOD ] && [ -z $GOVERNOR_MOD ]; then
echo "No driver or governor module passed with -d or -g"
exit 2;
fi
if [ $DRIVER_MOD ]; then
if [ $GOVERNOR_MOD ]; then
module_test $DRIVER_MOD $GOVERNOR_MOD
else
module_driver_test $DRIVER_MOD
fi
else
if [ $count = 0 ]; then
echo "No cpu is managed by cpufreq core, exiting"
exit 2;
fi
module_governor_test $GOVERNOR_MOD
fi
;;
*)
echo "Invalid [-f] function type"
helpme
......
#!/bin/bash
#
# 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
printf "Insmod $1 failed\n"
exit;
fi
printf "Removing $1 module\n"
# remove module
rmmod $1
if [ $? != 0 ]; then
printf "rmmod $1 failed\n"
exit;
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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