1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# 4# Modules specific tests cases 5 6# protect against multiple inclusion 7if [ $FILE_MODULE ]; then 8 return 0 9else 10 FILE_MODULE=DONE 11fi 12 13source cpu.sh 14source cpufreq.sh 15source governor.sh 16 17# Check basic insmod/rmmod 18# $1: module 19test_basic_insmod_rmmod() 20{ 21 printf "** Test: Running ${FUNCNAME[0]} **\n\n" 22 23 printf "Inserting $1 module\n" 24 # insert module 25 insmod $1 26 if [ $? != 0 ]; then 27 ktap_exit_fail_msg "Insmod $1 failed\n" 28 fi 29 30 printf "Removing $1 module\n" 31 # remove module 32 rmmod $1 33 if [ $? != 0 ]; then 34 ktap_exit_fail_msg "rmmod $1 failed\n" 35 fi 36 37 printf "\n" 38} 39 40# Insert cpufreq driver module and perform basic tests 41# $1: cpufreq-driver module to insert 42# $2: If we want to play with CPUs (1) or not (0) 43module_driver_test_single() 44{ 45 printf "** Test: Running ${FUNCNAME[0]} for driver $1 and cpus_hotplug=$2 **\n\n" 46 47 if [ $2 -eq 1 ]; then 48 # offline all non-boot CPUs 49 for_each_non_boot_cpu offline_cpu 50 printf "\n" 51 fi 52 53 # insert module 54 printf "Inserting $1 module\n\n" 55 insmod $1 56 if [ $? != 0 ]; then 57 printf "Insmod $1 failed\n" 58 return; 59 fi 60 61 if [ $2 -eq 1 ]; then 62 # online all non-boot CPUs 63 for_each_non_boot_cpu online_cpu 64 printf "\n" 65 fi 66 67 # run basic tests 68 cpufreq_basic_tests 69 70 # remove module 71 printf "Removing $1 module\n\n" 72 rmmod $1 73 if [ $? != 0 ]; then 74 printf "rmmod $1 failed\n" 75 return; 76 fi 77 78 # There shouldn't be any cpufreq directories now. 79 for_each_cpu cpu_should_not_have_cpufreq_directory 80 printf "\n" 81} 82 83# $1: cpufreq-driver module to insert 84module_driver_test() 85{ 86 printf "** Test: Running ${FUNCNAME[0]} **\n\n" 87 88 # check if module is present or not 89 ls $1 > /dev/null 90 if [ $? != 0 ]; then 91 printf "$1: not present in `pwd` folder\n" 92 return; 93 fi 94 95 # test basic module tests 96 test_basic_insmod_rmmod $1 97 98 # Do simple module test 99 module_driver_test_single $1 0 100 101 # Remove CPUs before inserting module and then bring them back 102 module_driver_test_single $1 1 103 printf "\n" 104} 105 106# find governor name based on governor module name 107# $1: governor module name 108find_gov_name() 109{ 110 if [ $1 = "cpufreq_ondemand.ko" ]; then 111 printf "ondemand" 112 elif [ $1 = "cpufreq_conservative.ko" ]; then 113 printf "conservative" 114 elif [ $1 = "cpufreq_userspace.ko" ]; then 115 printf "userspace" 116 elif [ $1 = "cpufreq_performance.ko" ]; then 117 printf "performance" 118 elif [ $1 = "cpufreq_powersave.ko" ]; then 119 printf "powersave" 120 elif [ $1 = "cpufreq_schedutil.ko" ]; then 121 printf "schedutil" 122 fi 123} 124 125# $1: governor string, $2: governor module, $3: policy 126# example: module_governor_test_single "ondemand" "cpufreq_ondemand.ko" 2 127module_governor_test_single() 128{ 129 printf "** Test: Running ${FUNCNAME[0]} for $3 **\n\n" 130 131 backup_governor $3 132 133 # switch to new governor 134 printf "Switch from $CUR_GOV to $1\n" 135 switch_show_governor $3 $1 136 137 # try removing module, it should fail as governor is used 138 printf "Removing $2 module\n\n" 139 rmmod $2 140 if [ $? = 0 ]; then 141 printf "WARN: rmmod $2 succeeded even if governor is used\n" 142 insmod $2 143 else 144 printf "Pass: unable to remove $2 while it is being used\n\n" 145 fi 146 147 # switch back to old governor 148 printf "Switchback to $CUR_GOV from $1\n" 149 restore_governor $3 150 printf "\n" 151} 152 153# Insert cpufreq governor module and perform basic tests 154# $1: cpufreq-governor module to insert 155module_governor_test() 156{ 157 printf "** Test: Running ${FUNCNAME[0]} **\n\n" 158 159 # check if module is present or not 160 ls $1 > /dev/null 161 if [ $? != 0 ]; then 162 printf "$1: not present in `pwd` folder\n" 163 return; 164 fi 165 166 # test basic module tests 167 test_basic_insmod_rmmod $1 168 169 # insert module 170 printf "Inserting $1 module\n\n" 171 insmod $1 172 if [ $? != 0 ]; then 173 printf "Insmod $1 failed\n" 174 return; 175 fi 176 177 # switch to new governor for each cpu 178 for_each_policy module_governor_test_single $(find_gov_name $1) $1 179 180 # remove module 181 printf "Removing $1 module\n\n" 182 rmmod $1 183 if [ $? != 0 ]; then 184 printf "rmmod $1 failed\n" 185 return; 186 fi 187 printf "\n" 188} 189 190# test modules: driver and governor 191# $1: driver module, $2: governor module 192module_test() 193{ 194 printf "** Test: Running ${FUNCNAME[0]} **\n\n" 195 196 # check if modules are present or not 197 ls $1 $2 > /dev/null 198 if [ $? != 0 ]; then 199 printf "$1 or $2: is not present in `pwd` folder\n" 200 return; 201 fi 202 203 # TEST1: Insert gov after driver 204 # insert driver module 205 printf "Inserting $1 module\n\n" 206 insmod $1 207 if [ $? != 0 ]; then 208 printf "Insmod $1 failed\n" 209 return; 210 fi 211 212 # run governor tests 213 module_governor_test $2 214 215 # remove driver module 216 printf "Removing $1 module\n\n" 217 rmmod $1 218 if [ $? != 0 ]; then 219 printf "rmmod $1 failed\n" 220 return; 221 fi 222 223 # TEST2: Insert driver after governor 224 # insert governor module 225 printf "Inserting $2 module\n\n" 226 insmod $2 227 if [ $? != 0 ]; then 228 printf "Insmod $2 failed\n" 229 return; 230 fi 231 232 # run governor tests 233 module_driver_test $1 234 235 # remove driver module 236 printf "Removing $2 module\n\n" 237 rmmod $2 238 if [ $? != 0 ]; then 239 printf "rmmod $2 failed\n" 240 return; 241 fi 242} 243