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