tools/testing/selftests/cpufreq/main.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 source cpu.sh
   5 source cpufreq.sh
   6 source governor.sh
   7 source module.sh
   8 source special-tests.sh
   9
  10 DIR="$(dirname $(readlink -f "$0"))"
  11 source "${DIR}"/../kselftest/ktap_helpers.sh
  12
  13 FUNC=basic      # do basic tests by default
  14 OUTFILE=cpufreq_selftest
  15 SYSFS=
  16 CPUROOT=
  17 CPUFREQROOT=
  18
  19 helpme()
  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
  40 prerequisite()
  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
  72 parse_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=$OPTARG
  96                                 ;;
  97
  98                         \?)
  99                                 helpme
 100                                 ;;
 101                 esac
 102         done
 103 }
 104
 105 do_test()
 106 {
 107         # Check if CPUs are managed by cpufreq or not
 108         count=$(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
 181 clear_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
 189 dmesg_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
 197 ktap_print_header
 198
 199 # Parse arguments
 200 parse_arguments $@
 201
 202 ktap_set_plan 1
 203
 204 # Make sure all requirements are met
 205 prerequisite
 206
 207 # Run requested functions
 208 clear_dumps $OUTFILE
 209 do_test | tee -a $OUTFILE.txt
 210 if [ "${PIPESTATUS[0]}" -ne 0 ]; then
 211     exit ${PIPESTATUS[0]};
 212 fi
 213 dmesg_dumps $OUTFILE
 214
 215 ktap_test_pass "Completed successfully"
 216
 217 ktap_print_totals
 218 exit "${KSFT_PASS}"