1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4source cpu.sh 5source cpufreq.sh 6source governor.sh 7source module.sh 8source special-tests.sh 9 10DIR="$(dirname $(readlink -f "$0"))" 11source "${DIR}"/../kselftest/ktap_helpers.sh 12 13FUNC=basic # do basic tests by default 14OUTFILE=cpufreq_selftest 15SYSFS= 16CPUROOT= 17CPUFREQROOT= 18 19helpme() 20{ 21 printf "Usage: $0 [-h] [-todg args] 22 [-h <help>] 23 [-o <output-file-for-dump>] 24 [-t <basic: Basic cpufreq testing 25 suspend: suspend/resume, 26 hibernate: hibernate/resume, 27 suspend_rtc: suspend/resume back using the RTC wakeup alarm, 28 hibernate_rtc: hibernate/resume back using the RTC wakeup alarm, 29 modtest: test driver or governor modules. Only to be used with -d or -g options, 30 sptest1: Simple governor switch to produce lockdep. 31 sptest2: Concurrent governor switch to produce lockdep. 32 sptest3: Governor races, shuffle between governors quickly. 33 sptest4: CPU hotplugs with updates to cpufreq files.>] 34 [-d <driver's module name: only with \"-t modtest>\"] 35 [-g <governor's module name: only with \"-t modtest>\"] 36 \n" 37 exit "${KSFT_FAIL}" 38} 39 40prerequisite() 41{ 42 msg="skip all tests:" 43 44 if [ $UID != 0 ]; then 45 ktap_skip_all "$msg must be run as root" 46 exit "${KSFT_SKIP}" 47 fi 48 49 taskset -p 01 $$ 50 51 SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'` 52 53 if [ ! -d "$SYSFS" ]; then 54 ktap_skip_all "$msg sysfs is not mounted" 55 exit "${KSFT_SKIP}" 56 fi 57 58 CPUROOT=$SYSFS/devices/system/cpu 59 CPUFREQROOT="$CPUROOT/cpufreq" 60 61 if ! ls $CPUROOT/cpu* > /dev/null 2>&1; then 62 ktap_skip_all "$msg cpus not available in sysfs" 63 exit "${KSFT_SKIP}" 64 fi 65 66 if ! ls $CPUROOT/cpufreq > /dev/null 2>&1; then 67 ktap_skip_all "$msg cpufreq directory not available in sysfs" 68 exit "${KSFT_SKIP}" 69 fi 70} 71 72parse_arguments() 73{ 74 while getopts ht:o:d:g: arg 75 do 76 case $arg in 77 h) # --help 78 helpme 79 ;; 80 81 t) # --func_type (Function to perform: basic, suspend, hibernate, 82 # suspend_rtc, hibernate_rtc, modtest, sptest1/2/3/4 (default: basic)) 83 FUNC=$OPTARG 84 ;; 85 86 o) # --output-file (Output file to store dumps) 87 OUTFILE=$OPTARG 88 ;; 89 90 d) # --driver-mod-name (Name of the driver module) 91 DRIVER_MOD=$OPTARG 92 ;; 93 94 g) # --governor-mod-name (Name of the governor module) 95 GOVERNOR_MOD=$OPTARG 96 ;; 97 98 \?) 99 helpme 100 ;; 101 esac 102 done 103} 104 105do_test() 106{ 107 # Check if CPUs are managed by cpufreq or not 108 count=$(count_cpufreq_managed_cpus) 109 110 if [ $count = 0 -a $FUNC != "modtest" ]; then 111 ktap_exit_fail_msg "No cpu is managed by cpufreq core, exiting" 112 fi 113 114 case "$FUNC" in 115 "basic") 116 cpufreq_basic_tests 117 ;; 118 119 "suspend") 120 do_suspend "suspend" 1 121 ;; 122 123 "hibernate") 124 do_suspend "hibernate" 1 125 ;; 126 127 "suspend_rtc") 128 do_suspend "suspend" 1 rtc 129 ;; 130 131 "hibernate_rtc") 132 do_suspend "hibernate" 1 rtc 133 ;; 134 135 "modtest") 136 # Do we have modules in place? 137 if [ -z $DRIVER_MOD ] && [ -z $GOVERNOR_MOD ]; then 138 ktap_exit_fail_msg "No driver or governor module passed with -d or -g" 139 fi 140 141 if [ $DRIVER_MOD ]; then 142 if [ $GOVERNOR_MOD ]; then 143 module_test $DRIVER_MOD $GOVERNOR_MOD 144 else 145 module_driver_test $DRIVER_MOD 146 fi 147 else 148 if [ $count = 0 ]; then 149 ktap_exit_fail_msg "No cpu is managed by cpufreq core, exiting" 150 fi 151 152 module_governor_test $GOVERNOR_MOD 153 fi 154 ;; 155 156 "sptest1") 157 simple_lockdep 158 ;; 159 160 "sptest2") 161 concurrent_lockdep 162 ;; 163 164 "sptest3") 165 governor_race 166 ;; 167 168 "sptest4") 169 hotplug_with_updates 170 ;; 171 172 *) 173 ktap_print_msg "Invalid [-f] function type" 174 helpme 175 ;; 176 esac 177} 178 179# clear dumps 180# $1: file name 181clear_dumps() 182{ 183 echo "" > $1.txt 184 echo "" > $1.dmesg_cpufreq.txt 185 echo "" > $1.dmesg_full.txt 186} 187 188# $1: output file name 189dmesg_dumps() 190{ 191 dmesg | grep cpufreq >> $1.dmesg_cpufreq.txt 192 193 # We may need the full logs as well 194 dmesg >> $1.dmesg_full.txt 195} 196 197ktap_print_header 198 199# Parse arguments 200parse_arguments $@ 201 202ktap_set_plan 1 203 204# Make sure all requirements are met 205prerequisite 206 207# Run requested functions 208clear_dumps $OUTFILE 209do_test | tee -a $OUTFILE.txt 210if [ "${PIPESTATUS[0]}" -ne 0 ]; then 211 exit ${PIPESTATUS[0]}; 212fi 213dmesg_dumps $OUTFILE 214 215ktap_test_pass "Completed successfully" 216 217ktap_print_totals 218exit "${KSFT_PASS}" 219