config_cpu(){
if checkbootparam 'nocpu'; then
ewarn "Skipping CPU detection as requested on boot commandline." ; eend 0
+ return 0
+fi
+
+if [[ $(grep -c processor /proc/cpuinfo) -gt 1 ]] ; then
+ einfo "Detecting CPU:"
+ CPU=$(awk -F: '/^processor/{printf " Processor"$2" is"};/^model name/{printf $2};/^vendor_id/{printf vendor};/^cpu MHz/{printf " %dMHz",int($2)};/^cache size/{printf ","$2" Cache"};/^$/{print ""}' /proc/cpuinfo 2>>$DEBUG)
+ echo $CPU | sed 's/ \{1,\}/ /g'
+ eend 0
else
- # check module dependencies
- cpufreq_check() {
- if ! [ -e /lib/modules/${KERNEL}/kernel/arch/x86/kernel/cpu/cpufreq ] ; then
- if [ -e /lib64 ] ; then
- [ -e /lib/modules/${KERNEL}/kernel/arch/x86_64/kernel/cpufreq ] || return 1
+ einfo "Detecting CPU: `awk -F: '/^processor/{printf " Processor"$2" is"};/^model name/{printf $2};/^vendor_id/{printf vendor};/^cpu MHz/{printf " %dMHz",int($2)};/^cache size/{printf ","$2" Cache"};/^$/{print ""}' /proc/cpuinfo 2>>$DEBUG` " ; eend 0
+fi
+
+# Virtual Box supports ACPI and laptop-detect would return with '0', so check for it:
+if [ -r /proc/acpi/battery/BAT0/info ] && grep -q 'OEM info:.*innotek' /proc/acpi/battery/BAT0/info ; then
+ einfo 'Virtual Box detected, skipping cpufreq setup.' ; eend 0
+ return 0
+fi
+
+if [ -x /etc/init.d/loadcpufreq ] ; then
+ einfo "Trying to set up cpu frequency scaling:"
+ eindent
+ SKIP_CPU_GOVERNOR=''
+ LOADCPUFREQ=$(mktemp)
+ /etc/init.d/loadcpufreq start >"$LOADCPUFREQ" 2>&1 ; RC=$?
+ if grep -q FATAL "$LOADCPUFREQ" ; then
+ eindent
+ SKIP_CPU_GOVERNOR=1
+ oldIFS="$IFS"
+ IFS="
+"
+ for line in $(grep FATAL "$LOADCPUFREQ" | sed 's/.*FATAL: //; s/ (.*)//') ; do
+ eerror "$line" ; eend $RC
+ done
+ IFS="$oldIFS"
+ eoutdent
+ elif grep -q done "$LOADCPUFREQ" ; then
+ MODULE=$(grep done "$LOADCPUFREQ" | sed 's/.*done (\(.*\))./\1/')
+ if [ -n "$MODULE" -a "$MODULE" != none ]; then
+ einfo "Loading cpufreq kernel module $MODULE" ; eend 0
else
- [ -e /lib/modules/${KERNEL}/kernel/arch/i386/kernel/cpu/cpufreq -o ! -e /lib/modules/${KERNEL}/kernel/drivers/cpufreq ] || return 1
+ ewarn "Could not find an appropriate kernel module for cpu frequency scaling." ; eend 1
fi
fi
- }
- if [[ `grep -c processor /proc/cpuinfo` -gt 1 ]] ; then
- einfo "Detecting CPU:"
- CPU=$(awk -F: '/^processor/{printf " Processor"$2" is"};/^model name/{printf $2};/^vendor_id/{printf vendor};/^cpu MHz/{printf " %dMHz",int($2)};/^cache size/{printf ","$2" Cache"};/^$/{print ""}' /proc/cpuinfo 2>>$DEBUG)
- echo $CPU | sed 's/ \{1,\}/ /g'
- eend 0
- else
- einfo "Detecting CPU: `awk -F: '/^processor/{printf " Processor"$2" is"};/^model name/{printf $2};/^vendor_id/{printf vendor};/^cpu MHz/{printf " %dMHz",int($2)};/^cache size/{printf ","$2" Cache"};/^$/{print ""}' /proc/cpuinfo 2>>$DEBUG` " ; eend 0
- fi
+ rm -f $LOADCPUFREQ
- # Disclaimer: sorry for the tons of if/then/else... but this makes sure we use:
- # * it only if we have the according kernel modules available
- # * cpufreq not inside Virtual Box
- # * current version of /etc/init.d/loadcpufreq from Debian (to stay in sync)
- # -> parse output of the initscript and output it according to our look'n'feel
- # * our own cpufreq-detect.sh if /etc/init.d/loadcpufreq isn't present
- if ! cpufreq_check ; then
- ewarn "Skipping cpufreq setup as module dependencies are not fulfilled." ; eend 1
- else
- # Virtual Box supports ACPI and laptop-detect would return with '0', so check for it:
- if [ -r /proc/acpi/battery/BAT0/info ] ; then
- if grep -q 'OEM info: innotek' /proc/acpi/battery/BAT0/info ; then
- einfo 'Virtual Box detected, skipping cpufreq setup.' ; eend 0
- return 0
- fi
- fi
- einfo "Trying to set up cpu frequency scaling:"
- eindent
- if [ -x /etc/init.d/loadcpufreq ] ; then
- SKIP_CPU_GOVERNOR=''
- LOADCPUFREQ=$(mktemp)
- /etc/init.d/loadcpufreq start >"$LOADCPUFREQ" 2>&1 ; RC=$?
- if grep -q FATAL "$LOADCPUFREQ" ; then
- eindent
- SKIP_CPU_GOVERNOR=1
- oldIFS="$IFS"
- IFS="
-"
- for line in $(grep FATAL "$LOADCPUFREQ" | sed 's/.*FATAL: //; s/ (.*)//') ; do
- eerror "$line" ; eend $RC
- done
- IFS="$oldIFS"
- eoutdent
- elif grep -q done "$LOADCPUFREQ" ; then
- MODULE=$(grep done "$LOADCPUFREQ" | sed 's/.*done (\(.*\))./\1/')
- if [ -n "$MODULE" -a "$MODULE" != none ]; then
- einfo "Loading cpufreq kernel module $MODULE" ; eend 0
- else
- ewarn "Could not find an appropriate kernel module for cpu frequency scaling." ; eend 1
- fi
- fi
- rm -f $LOADCPUFREQ
- elif [ -r /usr/bin/cpufreq-detect.sh ] ; then
- . /usr/bin/cpufreq-detect.sh
- if [ -n "$MODULE" -a "$MODULE" != none ]; then
- einfo "Loading modules ${MODULE}"
- modprobe "$MODULE" >>$DEBUG || modprobe "$MODULE_FALLBACK" >>$DEBUG
- RC=$?
- if [[ "$RC" == 0 ]]; then
- eend 0
- else
- SKIP_CPU_GOVERNOR=1
- eend $RC
- fi
- else
- ewarn "Could not detect an appropriate CPU for use with cpu frequency scaling - skipping."
- eend 1
- fi # $MODULE
- fi # loadcpufreq
-
- if [ -z "$SKIP_CPU_GOVERNOR" ] ; then
- einfo "Loading cpufreq_ondemand, setting ondemand governor"
- RC=0
- if modprobe cpufreq_ondemand ; RC=$? ; then
- for file in $(find /sys/devices/system/cpu/ -name scaling_governor 2>/dev/null) ; do
- echo ondemand > $file
- done
- fi
- eend $RC
- fi # cpu-governor
-
- eoutdent
+ if [ -z "$SKIP_CPU_GOVERNOR" ] ; then
+ einfo "Loading cpufreq_ondemand, setting ondemand governor"
+ RC=0
+ if modprobe cpufreq_ondemand ; RC=$? ; then
+ for file in $(find /sys/devices/system/cpu/ -name scaling_governor 2>/dev/null) ; do
+ echo ondemand > $file
+ done
+ fi
+ eend $RC
+ fi # cpu-governor
- fi # cpufreq_check
-fi # checkbootparam nocpu
+ eoutdent
+fi
}
# }}}
projects / grml-autoconfig.git / blobdiff