68 lines
1.7 KiB
Plaintext
68 lines
1.7 KiB
Plaintext
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#
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# $Header: profiles/power/start Exp $
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#
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local cpu pci usb hda nmi vmw aspm scsi
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declare -A opt
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opt=(
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[cpu]=${1:-powersave}
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[pci]=${2:-auto}
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[usb]=${3:-auto}
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[hda]=${5:-1}
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[nmi]=${6:-0}
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[vmw]=${7:-1000}
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[aspm]=${8:-default}
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[scsi]=${4:-min_power}
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)
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for cpu in /sys/devices/system/cpu/cpu[0-9]*; do
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echo ${opt[cpu]} >$cpu/cpufreq/scaling_governor
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done
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[ -e /sys/module/pcie_aspm/parameters/policy ] &&
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echo ${opt[aspm]} >/sys/module/pcie_aspm/parameters/policy >/dev/null 2>&1
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for scsi in /sys/class/scsi_host/host[0-9]*; do
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[ -e $scsi/link_power_management_policy ] || continue
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case "$(< $scsi/proc_name)" in
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(ahci|usb-storage)
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echo ${opt[scsi]} >$scsi/link_power_management_policy;;
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(*) ;;
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esac
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done
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# set usb host to auto powersave
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for usb in /sys/bus/usb/devices/{usb[0-9],[0-9]-[0-9]}; do
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echo ${opt[usb]} >$usb/power/control
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done
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# pci power control
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for pci in /sys/bus/pci/devices/0000:0*; do
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echo ${opt[pci]} >$pci/power/control
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done
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# snd-hda-intel powersave
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[ -e /sys/module/snd_hda_intel/parameters/power_save ] &&
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echo ${opt[hda]} >/sys/module/snd_hda_intel/parameters/power_save
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# turn off NMI watchdog
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[ -e /proc/sys/kernel/nmi_watchdog ] &&
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echo ${opt[nmi]} >/proc/sys/kernel/nmi_watchdog
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# VM write back timeout
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[ -e /proc/sys/vm/dirty_writeback_centisecs ] &&
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echo ${opt[vmw]} >/proc/sys/vm/dirty_writeback_centisecs
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unset opt
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[[ "${HPROFILE[power]}" == "network" ]] || return
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local iface running
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for iface in $(ifconfig | sed -nre 's/(^[ew].*[0-9]{1}):.*/\1/p'); do
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running="$(ifconfig $iface | sed -nre /$iface/'s/.*(RUNNING).*/\1/p')"
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[[ "$running" ]] || ifconfig "$iface" down
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done
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#
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# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
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#
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