diff options
Diffstat (limited to 'modules.d/90ppcmac')
| -rwxr-xr-x | modules.d/90ppcmac/load-thermal.sh | 30 | ||||
| -rwxr-xr-x | modules.d/90ppcmac/module-setup.sh | 83 |
2 files changed, 113 insertions, 0 deletions
diff --git a/modules.d/90ppcmac/load-thermal.sh b/modules.d/90ppcmac/load-thermal.sh new file mode 100755 index 0000000..72f2581 --- /dev/null +++ b/modules.d/90ppcmac/load-thermal.sh @@ -0,0 +1,30 @@ +#!/bin/sh +# +# This hook attempts to load the appropriate thermal modules +# for PowerPC Macs depending on the specific machine you have. + +[ -r /proc/cpuinfo ] || exit 0 + +load_windfarm() { + local pm_model + pm_model="$(sed -n '/model/p' /proc/cpuinfo)" + pm_model="${pm_model##*: }" + + # load quietly and respect the blacklist + # this way if the modules are for some reason missing, it will + # still exit successfully and not affect the boot process + case "$pm_model" in + PowerMac3,6) modprobe -b -q therm_windtunnel ;; + PowerMac7,2 | PowerMac7,3) modprobe -b -q windfarm_pm72 ;; + PowerMac8,1 | PowerMac8,2) modprobe -b -q windfarm_pm81 ;; + PowerMac9,1) modprobe -b -q windfarm_pm91 ;; + PowerMac11,2) modprobe -b -q windfarm_pm112 ;; + PowerMac12,1) modprobe -b -q windfarm_pm121 ;; + RackMac3,1) modprobe -b -q windfarm_rm31 ;; + *) ;; + esac + + return 0 +} + +load_windfarm diff --git a/modules.d/90ppcmac/module-setup.sh b/modules.d/90ppcmac/module-setup.sh new file mode 100755 index 0000000..83f54de --- /dev/null +++ b/modules.d/90ppcmac/module-setup.sh @@ -0,0 +1,83 @@ +#!/bin/bash +# +# This module attempts to properly deal with thermal behavior on PowerPC +# based Mac systems, by installing the model-appropriate (when hostonly) +# or all (when not) fan control/thermal kernel modules and loading them +# in a hook. +# +# While this is not strictly necessary for all kernels, particularly +# modular kernels will not autoload those drivers, even once the full +# system is up, which results in the fans spinning up to 100%; this is +# particularly annoying on live systems, where the system takes a while +# to load, so it's best to load the drivers early in initramfs stage. +# +# The behavior of this is inspired by the thermal hook in Debian's +# initramfs-tools, but written for dracut specifically and updated +# for modern kernels (2012+). + +# called by dracut +check() { + local _arch=${DRACUT_ARCH:-$(uname -m)} + # only for PowerPC Macs + [[ $_arch == ppc* && $_arch != ppc64le ]] || return 1 + return 0 +} + +# called by dracut +depends() { + return 0 +} + +# called by dracut +installkernel() { + pmac_model() { + local pm_model + pm_model="$(grep model /proc/cpuinfo)" + echo "${pm_model##*: }" + } + + # only PowerMac3,6 has a module, special case + if [[ ${DRACUT_ARCH:-$(uname -m)} != ppc64* ]]; then + if ! [[ $hostonly ]] || [[ "$(pmac_model)" == "PowerMac3,6" ]]; then + instmods therm_windtunnel + fi + return 0 + fi + + windfarm_modules() { + if ! [[ $hostonly ]]; then + # include all drivers when not hostonly + instmods \ + windfarm_pm72 windfarm_pm81 windfarm_pm91 windfarm_pm112 \ + windfarm_pm121 windfarm_rm31 + else + # guess model specific module, then install the rest + case "$(pmac_model)" in + PowerMac7,2 | PowerMac7,3) instmods windfarm_pm72 ;; + PowerMac8,1 | PowerMac8,2) instmods windfarm_pm81 ;; + PowerMac9,1) instmods windfarm_pm91 ;; + PowerMac11,2) instmods windfarm_pm112 ;; + PowerMac12,1) instmods windfarm_pm121 ;; + RackMac3,1) instmods windfarm_rm31 ;; + # no match, so skip installation of the rest + *) return 1 ;; + esac + fi + return 0 + } + + # hostonly and didn't match a model; skip installing other modules + windfarm_modules || return 0 + # these are all required by the assorted windfarm_pm* + instmods \ + windfarm_core windfarm_cpufreq_clamp windfarm_pid \ + windfarm_smu_controls windfarm_smu_sat windfarm_smu_sensors \ + windfarm_fcu_controls windfarm_ad7417_sensor windfarm_max6690_sensor \ + windfarm_lm75_sensor windfarm_lm87_sensor +} + +# called by dracut +install() { + # this will attempt to load the appropriate modules + inst_hook pre-udev 99 "$moddir/load-thermal.sh" +} |