Print cpu opp details from OPP driver from /sys/kernel/debugfs

opp_summary.sh

#!/bin/bash

# Needs kernel/debugsfs enabled
#
# Simple script, that creates an table based output of the opp values
# from every physical cpu.
#
# (c)2023    Matthias Strubel <matthias.strubel@aod-rpg.de>
#    License GPL-2.0
#

set -e
#set -x

cd /sys/kernel/debug/opp/

find . -name cpu\* -a -type d | sort > /tmp/pyhsical_cpu.txt

supply_header=""

while read cpu_folder ; do 
	cpu_name=$( basename $cpu_folder )
	echo "  $cpu_name"
	echo "  -----------------"
	cd $cpu_folder
	find . -name  opp\:\* -a -type d | sort -t ':' -k2 -n > /tmp/frequency_list.txt
	
	while read frequency_folder ; do
		supply=""
		frequency=$( echo "$frequency_folder" | cut -d ':' -f2 )
		out_freq="$frequency"
#		echo " --> $frequency "
		find $frequency_folder -name supply-\* -a -type d | sort > /tmp/supply.txt
		while read supply_folder ; do
#			echo " ---> $supply_folder "
			find $supply_folder -type f  > /tmp/supply_entities.txt
			if test -z "$supply_header" ; then
				tmp_header=""
				while read filename ; do
					tuple_name=$( basename $filename )
					printf -v out "%10s " $tuple_name 
					tmp_header="$tmp_header $out"
				done < /tmp/supply_entities.txt
				printf "%15s  | %s\n" "Frequency" "$tmp_header"
				echo "  -------------------------------------------------------------------"
				supply_header="1"
			fi
			tmp_output=""
                        while read filename ; do
                              tuple_name=$( basename $filename )
                              printf -v out "%10s " $(cat $filename) 
                              tmp_output="$tmp_output $out"
                        done < /tmp/supply_entities.txt
			printf "%15s  | %s\n" "$out_freq"  "$tmp_output"
			out_freq=""
		done < /tmp/supply.txt

	done < /tmp/frequency_list.txt

	cd ..
	supply_header=""
done < /tmp/pyhsical_cpu.txt

rm /tmp/pyhsical_cpu.txt /tmp/supply_entities.txt  /tmp/supply.txt /tmp/frequency_list.txt