phc-k8/phc-k8.rc

   1 #!/bin/bash
   2 shopt -s nullglob
   3
   4 if [ "$1" = set ]; then
   5                 . /etc/conf.d/phc-k8
   6                 [ -n "$VIDS" ] || exit
   7                 for i in $(< /proc/cmdline); do
   8                                 [ $i = nophc ] && exit
   9                 done
  10                 for i in /sys/devices/system/cpu/cpu*/cpufreq/phc_vids; do
  11                                 echo $VIDS > "$i"
  12                 done
  13                 exit
  14 fi
  15
  16 . /etc/rc.conf
  17 . /etc/rc.d/functions
  18
  19 case "$1" in
  20 start)
  21         . /etc/conf.d/phc-k8
  22         if [ -z "$VIDS" ]; then
  23                 printhl 'Please edit /etc/conf.d/phc-k8'
  24                 exit 1
  25         fi
  26         stat_busy 'Setting PHC VIDs'
  27         for i in /sys/devices/system/cpu/cpu*/cpufreq/phc_vids; do
  28                 echo $VIDS > "$i"
  29         done && stat_done || stat_fail
  30         ;;
  31 stop)
  32         stat_busy 'Resetting default PHC VIDs'
  33         for i in /sys/devices/system/cpu/cpu*/cpufreq; do
  34                 [ -e "$i/phc_default_vids" -a -e "$i/phc_vids" ] && cat "$i/phc_default_vids" > "$i/phc_vids"
  35         done && stat_done || stat_fail
  36         ;;
  37 status)
  38         check_off () {
  39                 for i in /sys/devices/system/cpu/cpu*/cpufreq; do
  40                         [ "$(< $i/phc_vids)" = "$(< $i/phc_default_vids)" ] || return;
  41                 done
  42         }
  43         check_on () {
  44                 for i in /sys/devices/system/cpu/cpu*/cpufreq/phc_vids; do
  45                         [[ "$(< $i)" =~ "$VIDS" ]] || return;
  46                 done
  47         }
  48         stat_busy 'PHC status'
  49         . /etc/conf.d/phc-intel
  50         if check_off; then
  51                 status_stopped
  52         elif check_on; then
  53                 status_started
  54         else
  55                 stat_fail
  56         fi
  57         ;;
  58 setup)
  59         LOG='/var/log/phc-k8.log'
  60         fail () {
  61                 stat_fail
  62                 printhl "Look at $LOG to find out what went wrong"
  63                 exit 1
  64         }
  65         stat_busy 'Removing old phc-k8 modules'
  66         for i in /lib/modules/*; do
  67                 if [ -f "$i/phc-k8.ko" -a ! -f "$i/version" ]; then
  68                         rm -f "$i"/{mperf,phc-k8}.ko
  69                         rmdir --ignore-fail-on-non-empty "$i"
  70                 elif [ -d "$i/updates/kernel/arch/x86/kernel/cpu/cpufreq" -a ! -d "$i/kernel" ]; then
  71                         rm -f "$i"/updates/kernel/arch/x86/kernel/cpu/cpufreq/{mperf,phc-k8}.ko
  72                         rmdir -p --ignore-fail-on-non-empty "$i/updates/kernel/arch/x86/kernel/cpu/cpufreq"
  73                 fi
  74         done
  75         stat_done
  76         stat_busy 'Compiling new phc-k8 module'
  77         cd /usr/src/phc-k8/
  78         make &>$LOG && stat_done || fail
  79         stat_busy 'Installing new phc-k8 module'
  80         make install &>>$LOG && stat_done || fail
  81         stat_busy 'Cleaning up'
  82         make clean &>>$LOG && stat_done || fail
  83         ;;
  84 *)
  85         echo "usage: $0 {start|stop|status|setup|set}"
  86 esac