Quelle  cpu.sh   Sprache: Shell

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# CPU helpers

# protect against multiple inclusion
if [ $FILE_CPU ]; then
 return 0
else
 FILE_CPU=DONE
fi

source cpufreq.sh

for_each_cpu()
{
 cpus=$(ls $CPUROOT | grep "cpu[0-9].*")
 for cpu in $cpus; do
  $@ $cpu
 done
}

for_each_non_boot_cpu()
{
 cpus=$(ls $CPUROOT | grep "cpu[1-9].*")
 for cpu in $cpus; do
  $@ $cpu
 done
}

#$1: cpu
offline_cpu()
{
 printf "Offline $1\n"
 echo 0 > $CPUROOT/$1/online
}

#$1: cpu
online_cpu()
{
 printf "Online $1\n"
 echo 1 > $CPUROOT/$1/online
}

#$1: cpu
reboot_cpu()
{
 offline_cpu $1
 online_cpu $1
}

# Reboot CPUs
# param: number of times we want to run the loop
reboot_cpus()
{
 printf "** Test: Running ${FUNCNAME[0]} for $1 loops **\n\n"

 for i in `seq 1 $1`; do
  for_each_non_boot_cpu offline_cpu
  for_each_non_boot_cpu online_cpu
  printf "\n"
 done

 printf "\n%s\n\n" "------------------------------------------------"
}

# Prints warning for all CPUs with missing cpufreq directory
print_unmanaged_cpus()
{
 for_each_cpu cpu_should_have_cpufreq_directory
}

# Counts CPUs with cpufreq directories
count_cpufreq_managed_cpus()
{
 count=0;

 for cpu in `ls $CPUROOT | grep "cpu[0-9].*"`; do
  if [ -d $CPUROOT/$cpu/cpufreq ]; then
   let count=count+1;
  fi
 done

 echo $count;
}