sascha/devlib
1
0
Fork 0
mirror of https://github.com/ARM-software/devlib.git synced 2025-09-19 10:21:55 +01:00
Code Issues Releases Wiki Activity

cpufreq: add functions to get frequencies and governors for all online CPUs

Browse Source 
This patch adds a couple of shutils functions to efficiently read all
the frequencies/governors and returne them into a dictionary indexed by
CPU id.

The shutils functions are returning a line per each CPU that can be easily
converted into a dictionary in the host side.

Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
This commit is contained in:
Patrick Bellasi
2015-11-27 16:40:58 +00:00
parent cf761317bd
commit 51b7f01d36
2 changed files with 42 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
devlib/bin/scripts/shutils.in
View File

@@ -18,6 +18,11 @@ cpufreq_set_all_frequencies() {
done
}
cpufreq_get_all_frequencies() {
$GREP '' /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq | \
$SED -e 's|/sys/devices/system/cpu/cpu||' -e 's|/cpufreq/scaling_cur_freq:| |'
}
cpufreq_set_all_governors() {
GOV=$1
for CPU in /sys/devices/system/cpu/cpu[0-9]*; do
@@ -25,6 +30,11 @@ cpufreq_set_all_governors() {
done
}
cpufreq_get_all_governors() {
$GREP '' /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor | \
$SED -e 's|/sys/devices/system/cpu/cpu||' -e 's|/cpufreq/scaling_governor:| |'
}
cpufreq_trace_all_frequencies() {
FREQS=$(cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq)
CPU=0; for F in $FREQS; do
@@ -41,9 +51,15 @@ case $CMD in
cpufreq_set_all_frequencies)
cpufreq_set_all_frequencies $*
;;
cpufreq_get_all_frequencies)
cpufreq_get_all_frequencies
;;
cpufreq_set_all_governors)
cpufreq_set_all_governors $*
;;
cpufreq_get_all_governors)
cpufreq_get_all_governors
;;
cpufreq_trace_all_frequencies)
cpufreq_trace_all_frequencies $*
;;