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-rwxr-xr-xtools/testing/selftests/cpufreq/main.sh198
1 files changed, 198 insertions, 0 deletions
diff --git a/tools/testing/selftests/cpufreq/main.sh b/tools/testing/selftests/cpufreq/main.sh
new file mode 100755
index 0000000000..60ce18ed06
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+++ b/tools/testing/selftests/cpufreq/main.sh
@@ -0,0 +1,198 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source cpu.sh
+source cpufreq.sh
+source governor.sh
+source module.sh
+source special-tests.sh
+
+FUNC=basic # do basic tests by default
+OUTFILE=cpufreq_selftest
+SYSFS=
+CPUROOT=
+CPUFREQROOT=
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+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 2
+}
+
+prerequisite()
+{
+ msg="skip all tests:"
+
+ if [ $UID != 0 ]; then
+ echo $msg must be run as root >&2
+ exit $ksft_skip
+ fi
+
+ taskset -p 01 $$
+
+ SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
+
+ if [ ! -d "$SYSFS" ]; then
+ echo $msg sysfs is not mounted >&2
+ exit 2
+ fi
+
+ CPUROOT=$SYSFS/devices/system/cpu
+ CPUFREQROOT="$CPUROOT/cpufreq"
+
+ if ! ls $CPUROOT/cpu* > /dev/null 2>&1; then
+ echo $msg cpus not available in sysfs >&2
+ exit 2
+ fi
+
+ if ! ls $CPUROOT/cpufreq > /dev/null 2>&1; then
+ echo $msg cpufreq directory not available in sysfs >&2
+ exit 2
+ 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 $FUNC != "modtest" ]; then
+ echo "No cpu is managed by cpufreq core, exiting"
+ exit 2;
+ fi
+
+ case "$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
+ 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
+ ;;
+
+ "sptest1")
+ simple_lockdep
+ ;;
+
+ "sptest2")
+ concurrent_lockdep
+ ;;
+
+ "sptest3")
+ governor_race
+ ;;
+
+ "sptest4")
+ hotplug_with_updates
+ ;;
+
+ *)
+ echo "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
+}
+
+# Parse arguments
+parse_arguments $@
+
+# Make sure all requirements are met
+prerequisite
+
+# Run requested functions
+clear_dumps $OUTFILE
+do_test | tee -a $OUTFILE.txt
+dmesg_dumps $OUTFILE