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