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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
source cpu.sh
source cpufreq.sh
source governor.sh
source module.sh
source special-tests.sh
DIR="$(dirname $(readlink -f "$0"))"
source "${DIR}"/../kselftest/ktap_helpers.sh
FUNC=basic # do basic tests by default
OUTFILE=cpufreq_selftest
SYSFS=
CPUROOT=
CPUFREQROOT=
helpme()
{
printf "Usage: $0 [-h] [-todg args]
[-h <help>]
[-o <output-file-for-dump>]
[-t <basic: Basic cpufreq testing
suspend: suspend/resume,
hibernate: hibernate/resume,
modtest: test driver or governor modules. Only to be used with -d or -g options,
sptest1: Simple governor switch to produce lockdep.
sptest2: Concurrent governor switch to produce lockdep.
sptest3: Governor races, shuffle between governors quickly.
sptest4: CPU hotplugs with updates to cpufreq files.>]
[-d <driver's module name: only with \"-t modtest>\"]
[-g <governor's module name: only with \"-t modtest>\"]
\n"
exit "${KSFT_FAIL}"
}
prerequisite()
{
msg="skip all tests:"
if [ $UID != 0 ]; then
ktap_skip_all "$msg must be run as root"
exit "${KSFT_SKIP}"
fi
taskset -p 01 $$
SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
if [ ! -d "$SYSFS" ]; then
ktap_skip_all "$msg sysfs is not mounted"
exit "${KSFT_SKIP}"
fi
CPUROOT=$SYSFS/devices/system/cpu
CPUFREQROOT="$CPUROOT/cpufreq"
if ! ls $CPUROOT/cpu* > /dev/null 2>&1; then
ktap_skip_all "$msg cpus not available in sysfs"
exit "${KSFT_SKIP}"
fi
if ! ls $CPUROOT/cpufreq > /dev/null 2>&1; then
ktap_skip_all "$msg cpufreq directory not available in sysfs"
exit "${KSFT_SKIP}"
fi
}
parse_arguments()
{
while getopts ht:o:d:g: arg
do
case $arg in
h) # --help
helpme
;;
t) # --func_type (Function to perform: basic, suspend, hibernate, modtest, sptest1/2/3/4 (default: basic))
FUNC=$OPTARG
;;
o) # --output-file (Output file to store dumps)
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=$OPTARG
;;
\?)
helpme
;;
esac
done
}
do_test()
{
# Check if CPUs are managed by cpufreq or not
count=$(count_cpufreq_managed_cpus)
if [ $count = 0 -a $FUNC != "modtest" ]; then
ktap_exit_fail_msg "No cpu is managed by cpufreq core, exiting"
fi
case "$FUNC" in
"basic")
cpufreq_basic_tests
;;
"suspend")
do_suspend "suspend" 1
;;
"hibernate")
do_suspend "hibernate" 1
;;
"modtest")
# Do we have modules in place?
if [ -z $DRIVER_MOD ] && [ -z $GOVERNOR_MOD ]; then
ktap_exit_fail_msg "No driver or governor module passed with -d or -g"
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
ktap_exit_fail_msg "No cpu is managed by cpufreq core, exiting"
fi
module_governor_test $GOVERNOR_MOD
fi
;;
"sptest1")
simple_lockdep
;;
"sptest2")
concurrent_lockdep
;;
"sptest3")
governor_race
;;
"sptest4")
hotplug_with_updates
;;
*)
ktap_print_msg "Invalid [-f] function type"
helpme
;;
esac
}
# clear dumps
# $1: file name
clear_dumps()
{
echo "" > $1.txt
echo "" > $1.dmesg_cpufreq.txt
echo "" > $1.dmesg_full.txt
}
# $1: output file name
dmesg_dumps()
{
dmesg | grep cpufreq >> $1.dmesg_cpufreq.txt
# We may need the full logs as well
dmesg >> $1.dmesg_full.txt
}
ktap_print_header
# Parse arguments
parse_arguments $@
ktap_set_plan 1
# Make sure all requirements are met
prerequisite
# Run requested functions
clear_dumps $OUTFILE
do_test | tee -a $OUTFILE.txt
if [ "${PIPESTATUS[0]}" -ne 0 ]; then
exit ${PIPESTATUS[0]};
fi
dmesg_dumps $OUTFILE
ktap_test_pass "Completed successfully"
ktap_print_totals
exit "${KSFT_PASS}"
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