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module: Add devfreq module

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Add support for devfreq. This is used for example to get/set the frequency
and/or governor of the GPU.
This commit is contained in:
Michele Di Giorgio
2018-06-22 17:19:03 +01:00
committed by setrofim
parent d81b72a91b
commit 0915d97f71
2 changed files with 304 additions and 0 deletions
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43
devlib/bin/scripts/shutils.in
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@@ -47,6 +47,37 @@ cpufreq_trace_all_frequencies() {
done
}
################################################################################
# DevFrequency Utility Functions
################################################################################
devfreq_set_all_frequencies() {
FREQ=$1
for DEV in /sys/class/devfreq/*; do
echo $FREQ > $DEV/min_freq
echo $FREQ > $DEV/max_freq
done
}
devfreq_get_all_frequencies() {
for DEV in /sys/class/devfreq/*; do
echo "`basename $DEV` `cat $DEV/cur_freq`"
done
}
devfreq_set_all_governors() {
GOV=$1
for DEV in /sys/class/devfreq/*; do
echo $GOV > $DEV/governor
done
}
devfreq_get_all_governors() {
for DEV in /sys/class/devfreq/*; do
echo "`basename $DEV` `cat $DEV/governor`"
done
}
################################################################################
# CPUIdle Utility Functions
################################################################################
@@ -253,6 +284,18 @@ cpufreq_get_all_governors)
cpufreq_trace_all_frequencies)
cpufreq_trace_all_frequencies $*
;;
devfreq_set_all_frequencies)
devfreq_set_all_frequencies $*
;;
devfreq_get_all_frequencies)
devfreq_get_all_frequencies
;;
devfreq_set_all_governors)
devfreq_set_all_governors $*
;;
devfreq_get_all_governors)
devfreq_get_all_governors
;;
cpuidle_wake_all_cpus)
cpuidle_wake_all_cpus $*
;;