# kernel configuration script for power user kernel
# (c) Copyright 2010 by Thomas Tanner <maemo@tannerlab.com>
# licensed under GPLv3
-# version 0.1 (2. May 2010)
+# version 0.3 (16. May 2010)
if test $# -eq 0; then
echo "$0 command [options]"
echo "commands:"
echo " show - show current settings"
echo " load <file> - load settings from file"
- echo " save <file> - save settings to file (abs. path or filename in /home/user/.kernel, none=defaults)"
- echo " setdefault <file> - set file as default settings"
- echo " lock [freq [volt] [dsp]] - un/lock CPU at frequency with specific settings"
+ echo " save <file> - save settings to file (abs. path or filename in /home/user/.kernel)"
+ echo " default [<file>] - set file or the current settings as default settings"
+ echo " limits min max - set the frequency limits ('-' keeps the current setting)"
+ echo " lock freq [volt] [dsp] - lock CPU at frequency with specific settings"
+ echo " unlock - unlock CPU frequency"
echo "filenames: absolute path or filename in search path or none=defaults"
echo "search path: .,/home/user/.kernel,/usr/share/kernel-power-settings/"
exit 1
cfr=/sys/devices/system/cpu/cpu0/cpufreq
cfd=$cfr/ondemand
-pwr=/sys/power/
+cfc=$cfr/conservative
+pwr=/sys/power
-echo ondemand > $cfr/scaling_governor
-if test -f $cfd/avoid_frequencies -a -f $pwr/vdd1_opps_vsel -a -f $pwr/dsp_opps_rate; then :
+if test -f $pwr/vdd1_opps_vsel -a -f $pwr/dsp_opps_rate; then :
else
echo This kernel version `uname -r` is not supported
+ echo Please make sure that kernel-power is installed and running.
+ echo If you have just installed the kernel, you need to shutdown and boot to activate it.
+ echo To reinstall the power user kernel run:
+ echo \'apt-get install --reinstall kernel-power kernel-power-flasher\'
exit 1
fi
rate=`cat $pwr/dsp_opps_rate`
cmd=$1
+test "$cmd" = setdefault && cmd=default # old name
+case " show load save default limits lock unlock " in
+*" $cmd "*) ;;
+*) echo "invalid command $cmd"; exit 1 ;;
+esac
arg=
shift
-if test "$cmd" = lock && test -z "$1"; then
+if test "$cmd" = unlock; then
echo 'unlocking frequency. reset to defaults'
cmd=loaddef
- arg=
+fi
+if test "$cmd" = default && test $# -eq 0; then
+ echo 'saving current settings as defaults'
+ arg=/etc/default/kernel-power
+ cmd=savedef
fi
popvsel() { curvsel=$1; shift; vsel="$*"; }
poprate() { currate=$1; shift; rate="$*"; }
case $cmd in
-show|save)
+show|save|savedef)
minfreq=$((`cat $cfr/scaling_min_freq`/1000))
maxfreq=$((`cat $cfr/scaling_max_freq`/1000))
test $maxfreq = 599 && maxfreq=600
- avoid=`cat $cfd/avoid_frequencies`
+ gov=`cat $cfr/scaling_governor`
+ avoid=
+ test $gov = ondemand && avoid=`cat $cfd/avoid_frequencies`
freqs=
- for f in $allfreq; do
+ for f in 0 $allfreq; do
popvsel $vsel
poprate $rate
case " $avoid " in *" $f "*) ;;
- *) freqs="$freqs$((f/1000)):$curvsel,$currate "
+ *) freqs="$freqs$((f/1000)):$curvsel,$currate " ;;
esac
done
if test $cmd = show; then
echo
echo "active frequencies: $freqs"
echo "SmartReflex" "VDD1=`cat $pwr/sr_vdd1_autocomp`, VDD2=`cat $pwr/sr_vdd2_autocomp`"
- echo -n "ondemand: ignore nice load=" `cat $cfd/ignore_nice_load`
- echo -n ", up threshold=" `cat $cfd/up_threshold`
- echo ", sampling rate=" `cat $cfd/sampling_rate`
+ echo -n "governor $gov:"
+ if test $gov = ondemand; then
+ echo -n " ignore nice load=" `cat $cfd/ignore_nice_load`
+ echo -n ", up threshold=" `cat $cfd/up_threshold`
+ echo -n ", sampling rate=" `cat $cfd/sampling_rate`
+ echo ", powersave bias=" `cat $cfd/powersave_bias`
+ else
+ echo
+ fi
else
- arg=$1
- test -z "$arg" && arg=/etc/default/kernel-power
+ test $cmd = save && arg=$1
+ if test -z "$arg"; then
+ echo "filename argument is mssing"
+ exit 1
+ fi
if test `basename $arg` = $arg; then
u=/home/user/.kernel
arg=$u/$arg
touch $arg
chown user.users $arg
fi
- test $arg = /etc/default/kernel-power && test -L $arg && rm -f $arg
+ rm -f $arg
echo "saving to $arg"
echo "# kernel configuration file generated by $0" > $arg
echo "MINFREQ=$minfreq" >> $arg
echo "FREQS=\"$freqs\"" >> $arg
echo "SMARTREFLEX_VDD1=`cat $pwr/sr_vdd1_autocomp`" >> $arg
echo "SMARTREFLEX_VDD2=`cat $pwr/sr_vdd2_autocomp`" >> $arg
- echo "IGNORE_NICE_LOAD=`cat $cfd/ignore_nice_load`" >> $arg
- echo "UP_THRESHOLD=`cat $cfd/up_threshold`" >> $arg
- echo "SAMPLING_RATE=`cat $cfd/sampling_rate`" >> $arg
+ echo "GOVERNOR=$gov" >> $arg
+ if test $gov = ondemand; then
+ echo "IGNORE_NICE_LOAD=`cat $cfd/ignore_nice_load`" >> $arg
+ echo "UP_THRESHOLD=`cat $cfd/up_threshold`" >> $arg
+ echo "SAMPLING_RATE=`cat $cfd/sampling_rate`" >> $arg
+ echo "POWERSAVE_BIAS=`cat $cfd/powersave_bias`" >> $arg
+ fi
fi
;;
load|loaddef)
source $arg
if test -n "$VDD1_OPPS_VSEL" -o -n "$DSP_OPPS_RATE"; then
echo "warning: old configuration format detected. please save in the new format."
- test -n "$MIN_FREQ" && echo $MIN_FREQ > $cfr/scaling_min_freq
- test -n "$MAX_FREQ" && echo $MAX_FREQ > $cfr/scaling_max_freq
- test -n "$VDD1_OPPS_VSEL" && echo $VDD1_OPPS_VSEL > $pwr/vdd1_opps_vsel
- test -n "$DSP_OPPS_RATE" && echo $DSP_OPPS_RATE > $pwr/dsp_opps_rate
+ if test -n "$MAX_FREQ"; then
+ test $MAX_FREQ = 600000 && MAX_FREQ=599000
+ echo $MAX_FREQ > $cfr/scaling_max_freq
+ fi
+ test -n "$MIN_FREQ" && echo $MIN_FREQ > $cfr/scaling_min_freq
+ test -n "$MAX_FREQ" && echo $MAX_FREQ > $cfr/scaling_max_freq
+ test -n "$VDD1_OPPS_VSEL" && echo $VDD1_OPPS_VSEL > $pwr/vdd1_opps_vsel
+ test -n "$DSP_OPPS_RATE" && echo $DSP_OPPS_RATE > $pwr/dsp_opps_rate
test -n "$SMARTREFLEX_VDD1" && echo $SMARTREFLEX_VDD1 > $pwr/sr_vdd1_autocomp
- test -n "$SMARTREFLEX_VDD2" && echo $SMARTREFLEX_VDD2 > $pwr/sr_vdd2_autocomp
+ test -n "$SMARTREFLEX_VDD2" && echo $SMARTREFLEX_VDD2 > $pwr/sr_vdd2_autocomp
test -n "$IGNORE_NICE_LOAD" && echo $IGNORE_NICE_LOAD > $cfd/ignore_nice_load
- test -n "$UP_THRESHOLD" && echo $UP_THRESHOLD > $cfd/up_threshold
+ test -n "$UP_THRESHOLD" && echo $UP_THRESHOLD > $cfd/up_threshold
test -n "$SAMPLING_RATE" && echo $SAMPLING_RATE > $cfd/sampling_rate
exit 1
fi
- #echo $allfreq
- #echo $vsel
- #echo $rate
active=
minfreq=
maxfreq=
- #echo $FREQS
for f in $FREQS; do
- #echo processing $f
freq=`echo $f | cut -d: -f1`
f=`echo $f | cut -d: -f2`
volt=`echo $f | cut -d, -f1`
dsp=`echo $f | cut -d, -f2`
- #echo freq $freq volt $volt dsp $dsp
if test ! $freq = 0; then
test -z "$minfreq" -o "$freq" -lt "$minfreq" && minfreq=$freq
test -z "$maxfreq" -o "$freq" -gt "$maxfreq" && maxfreq=$freq
test -z "$volt" && test -z "$dsp" && continue
tvsel=
trate=
- cpvsel() { tvsel="$tvsel $1"; }
- cprate() { trate="$trate $1"; }
for fr in 0 $allfreq; do
if test $fr = $freq; then
popvsel $vsel
done
vsel=$tvsel
rate=$trate
- #echo $vsel
done
- #echo vsel $vsel
- #echo rate $rate
+ test -z "$GOVERNOR" && GOVERNOR=ondemand
test -n "$MINFREQ" && minfreq=$MINFREQ
test -n "$MAXFREQ" && maxfreq=$MAXFREQ
test "$minfreq" -gt 100000 && minfreq=$((minfreq/1000))
test "$maxfreq" -gt 100000 && maxfreq=$((maxfreq/1000))
- #echo $minfreq $maxfreq
avoid=
for f in $allfreq; do
if test "$f" -lt $((minfreq*1000)); then
*) avoid="$avoid $f" ;;
esac
done
- #echo $avoid
- echo $avoid > $cfd/avoid_frequencies
+ echo $GOVERNOR > $cfr/scaling_governor
+ if test $GOVERNOR = ondemand; then
+ echo $avoid > $cfd/avoid_frequencies
+ test -n "$IGNORE_NICE_LOAD" && echo $IGNORE_NICE_LOAD > $cfd/ignore_nice_load
+ test -n "$UP_THRESHOLD" && echo $UP_THRESHOLD > $cfd/up_threshold
+ test -n "$SAMPLING_RATE" && echo $SAMPLING_RATE > $cfd/sampling_rate
+ test -n "$POWERSAVE_BIAS" && echo $POWERSAVE_BIAS > $cfd/powersave_bias
+ fi
echo $vsel > $pwr/vdd1_opps_vsel
- echo $rates > $pwr/dsp_opps_rate
+ echo $rate > $pwr/dsp_opps_rate
test $maxfreq = 600 && maxfreq=599
+ echo $((maxfreq*1000)) > $cfr/scaling_max_freq
echo $((minfreq*1000)) > $cfr/scaling_min_freq
echo $((maxfreq*1000)) > $cfr/scaling_max_freq
test -n "$SMARTREFLEX_VDD1" && echo $SMARTREFLEX_VDD1 > $pwr/sr_vdd1_autocomp
test -n "$SMARTREFLEX_VDD2" && echo $SMARTREFLEX_VDD2 > $pwr/sr_vdd2_autocomp
- test -n "$IGNORE_NICE_LOAD" && echo $IGNORE_NICE_LOAD > $cfd/ignore_nice_load
- test -n "$UP_THRESHOLD" && echo $UP_THRESHOLD > $cfd/up_threshold
- test -n "$SAMPLING_RATE" && echo $SAMPLING_RATE > $cfd/sampling_rate
echo "successfully loaded."
;;
-setdefault)
+default)
arg=$1
if test -z "$arg"; then
echo "filename missing"
esac
echo "defaults set to $arg"
;;
+limits)
+ minfreq=$1
+ maxfreq=$2
+ if test "x$minfreq" = x -o "x$maxfreq" = x; then
+ echo "frequency limit arguments missing"
+ exit 1
+ fi
+ test "x$minfreq" = "x-" && minfreq=$((`cat $cfr/scaling_min_freq`/1000))
+ test "x$maxfreq" = "x-" && maxfreq=$((`cat $cfr/scaling_max_freq`/1000))
+ limits="$minfreq,$maxfreq"
+ minfreq=$((minfreq*1000))
+ maxfreq=$((maxfreq*1000))
+ case " $allfreq " in *" $minfreq "*) ;;
+ *) echo "invalid lower limit $1"; exit 1; ;;
+ esac
+ case " $allfreq " in *" $maxfreq "*) ;;
+ *) echo "invalid upper limit $2"; exit 1; ;;
+ esac
+ if test $minfreq -gt $maxfreq; then
+ echo "minimum must not be greater than maximum: $limits"
+ exit 1
+ fi
+ test $maxfreq = 600000 && maxfreq=599000
+ echo $maxfreq > $cfr/scaling_max_freq
+ echo $minfreq > $cfr/scaling_min_freq
+ echo $maxfreq > $cfr/scaling_max_freq
+ echo "the limits were set to [$limits]"
+ ;;
lock)
arg=$1
altfreq=
dsp=
freq=$((arg*1000))
ifreq=
- i=0
- allfreq="0 $allfreq"
+ i=1
+ avoid=
for f in $allfreq; do
i=$((i+1))
- test $f = $freq || continue
- ifreq=$i
- break
+ if test $f = $freq; then
+ ifreq=$i
+ break
+ fi
+ avoid="$avoid $f"
done
if test -z "ifreq"; then
echo invalid frequency $freq
exit 1
fi
- echo $ifreq $altfreq
- test -f $cfd/avoid_frequencies && echo > $cfd/avoid_frequencies # enable all freqs
echo userspace > $cfr/scaling_governor
echo $altfreq > $cfr/scaling_setspeed # temporarily set alternative frequencies
volt=$2
test $i = $ifreq && v=$volt
vsel="$vsel $v"
done
- echo $vsel
echo $vsel > $pwr/vdd1_opps_vsel
fi
dsp=$3
test $i = $ifreq && r=$dsp
dsp="$dsp $r"
done
- echo $dsp
echo $dsp > $pwr/dsp_opps_rate
fi
echo locking frequency $freq
- echo $freq > $cfr/scaling_setspeed
+ echo ondemand > $cfr/scaling_governor
+ echo $avoid > $cfd/avoid_frequencies # avoid all other freqs
+ maxfreq=$freq
+ test $maxfreq = 600000 && maxfreq=599000
+ # min after max? kernel docs are wrong?
+ echo $maxfreq > $cfr/scaling_max_freq
+ echo $freq > $cfr/scaling_min_freq
+ echo $maxfreq > $cfr/scaling_max_freq
;;
-*)
- echo "invalid command $cmd"
- exit 1
esac
exit 0
projects / kernel-bfs / blobdiff