src/initscripts/packages/cpufreq

   1 #!/bin/sh
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007-2024  IPFire Team  <info@ipfire.org>                     #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 . /etc/sysconfig/rc
  23 . ${rc_functions}
  24
  25 GOV="ondemand"
  26
  27 case "${1}" in
  28         start)
  29                 boot_mesg -n "Starting cpufreq... "
  30
  31                 # try cpufreq hardware depend modules
  32                 for i in $(find /lib/modules/$(uname -r)/kernel/drivers/cpufreq \
  33                            ! -name speedstep-lib.ko.xz ! -name p4-clockmod.ko.xz ! -name amd-pstate* ! -name "cpufreq_*" ! -name mperf.ko.xz | sort -d -r); do
  34                         module=$(basename $i | cut -d. -f1);
  35                         modprobe $module > /dev/null 2>&1;
  36                         if [ ${?} = 0 ]; then
  37                             boot_mesg -n "$SUCCESS$module$NORMAL "
  38                         fi
  39                 done
  40                 boot_mesg ""
  41
  42                 # load cqufreq governors
  43                 modprobe cpufreq_conservative
  44                 modprobe cpufreq_ondemand
  45                 modprobe cpufreq_powersave
  46                 modprobe cpufreq_userspace
  47
  48                 driver=`cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_driver 2>/dev/null`
  49
  50                 case "$driver" in
  51                     *pstate*)
  52                         # pstate not support ondemand so use powersave
  53                         GOV="powersave"
  54                         echo_ok;
  55                         ;;
  56                 esac
  57                 CPUCOUNT=`ls /sys/devices/system/cpu/cpu*/cpufreq/affected_cpus 2> /dev/null | wc -l `;
  58                 let CPUCOUNT-=1
  59                 # Set the governor to test if it works
  60                 cpufreq-set -g $GOV
  61                 if [ ${?} = 0 ]; then
  62                         # Set the governor to ondemand for all cpus
  63                         for i in `seq 0 $CPUCOUNT`;
  64                         do
  65                                 cpufreq-set -c $i -g $GOV > /dev/null
  66                         done
  67                         echo_ok;
  68                 else
  69                         echo_failure;
  70                 fi
  71                 exit 0
  72                 ;;
  73         *)
  74                 echo "Usage: ${0} {start}"
  75                 exit 1
  76                 ;;
  77 esac