#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0
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#
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# CPU helpers
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# protect against multiple inclusion
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if [ $FILE_CPU ]; then
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return 0
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else
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FILE_CPU=DONE
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fi
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source cpufreq.sh
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for_each_cpu()
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{
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cpus=$(ls $CPUROOT | grep "cpu[0-9].*")
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for cpu in $cpus; do
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$@ $cpu
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done
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}
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for_each_non_boot_cpu()
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{
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cpus=$(ls $CPUROOT | grep "cpu[1-9].*")
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for cpu in $cpus; do
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$@ $cpu
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done
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}
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#$1: cpu
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offline_cpu()
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{
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printf "Offline $1\n"
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echo 0 > $CPUROOT/$1/online
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}
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#$1: cpu
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online_cpu()
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{
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printf "Online $1\n"
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echo 1 > $CPUROOT/$1/online
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}
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#$1: cpu
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reboot_cpu()
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{
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offline_cpu $1
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online_cpu $1
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}
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# Reboot CPUs
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# param: number of times we want to run the loop
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reboot_cpus()
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{
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printf "** Test: Running ${FUNCNAME[0]} for $1 loops **\n\n"
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for i in `seq 1 $1`; do
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for_each_non_boot_cpu offline_cpu
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for_each_non_boot_cpu online_cpu
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printf "\n"
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done
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printf "\n%s\n\n" "------------------------------------------------"
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}
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# Prints warning for all CPUs with missing cpufreq directory
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print_unmanaged_cpus()
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{
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for_each_cpu cpu_should_have_cpufreq_directory
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}
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# Counts CPUs with cpufreq directories
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count_cpufreq_managed_cpus()
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{
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count=0;
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for cpu in `ls $CPUROOT | grep "cpu[0-9].*"`; do
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if [ -d $CPUROOT/$cpu/cpufreq ]; then
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let count=count+1;
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fi
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done
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echo $count;
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}
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