gnu: Add tlp service.

* gnu/services/pm.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add gnu/services/tlp.scm.
* doc/guix.texi (Power management Services): New section.

Signed-off-by: Clément Lassieur <clement@lassieur.org>
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Mathieu Othacehe 2017-03-24 11:00:15 +01:00 committed by Clément Lassieur
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@ -216,6 +216,7 @@ Services
* VPN Services:: VPN daemons.
* Network File System:: NFS related services.
* Continuous Integration:: The Cuirass service.
* Power management Services:: The TLP tool.
* Miscellaneous Services:: Other services.
Defining Services
@ -8451,6 +8452,7 @@ declaration.
* VPN Services:: VPN daemons.
* Network File System:: NFS related services.
* Continuous Integration:: The Cuirass service.
* Power management Services:: The TLP tool.
* Miscellaneous Services:: Other services.
@end menu
@ -13708,6 +13710,509 @@ The Cuirass package to use.
@end table
@end deftp
@node Power management Services
@subsubsection Power management Services
@cindex power management with TLP
The @code{(gnu services pm)} module provides a Guix service definition
for the Linux power management tool TLP.
TLP enables various powersaving modes in userspace and kernel.
Contrary to @code{upower-service}, it is not a passive,
monitoring tool, as it will apply custom settings each time a new power
source is detected. More information can be found at
@uref{http://linrunner.de/en/tlp/tlp.html, TLP home page}.
@deffn {Scheme Variable} tlp-service-type
The service type for the TLP tool. Its value should be a valid
TLP configuration (see below). For example:
@example
(service tlp-service-type (tlp-configuration))
@end example
@end deffn
By default TLP does not need much configuration but most TLP parameters
can be tweaked using @code{tlp-configuration}.
Each parameter definition is preceded by its type; for example,
@samp{boolean foo} indicates that the @code{foo} parameter
should be specified as a boolean. Types starting with
@code{maybe-} denote parameters that won't show up in TLP config file
when their value is @code{'disabled}.
@c The following documentation was initially generated by
@c (generate-tlp-documentation) in (gnu services pm). Manually maintained
@c documentation is better, so we shouldn't hesitate to edit below as
@c needed. However if the change you want to make to this documentation
@c can be done in an automated way, it's probably easier to change
@c (generate-documentation) than to make it below and have to deal with
@c the churn as TLP updates.
Available @code{tlp-configuration} fields are:
@deftypevr {@code{tlp-configuration} parameter} package tlp
The TLP package.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean tlp-enable?
Set to true if you wish to enable TLP.
Defaults to @samp{#t}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string tlp-default-mode
Default mode when no power supply can be detected. Alternatives are AC
and BAT.
Defaults to @samp{"AC"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} non-negative-integer disk-idle-secs-on-ac
Number of seconds Linux kernel has to wait after the disk goes idle,
before syncing on AC.
Defaults to @samp{0}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} non-negative-integer disk-idle-secs-on-bat
Same as @code{disk-idle-ac} but on BAT mode.
Defaults to @samp{2}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} non-negative-integer max-lost-work-secs-on-ac
Dirty pages flushing periodicity, expressed in seconds.
Defaults to @samp{15}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} non-negative-integer max-lost-work-secs-on-bat
Same as @code{max-lost-work-secs-on-ac} but on BAT mode.
Defaults to @samp{60}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-space-separated-string-list cpu-scaling-governor-on-ac
CPU frequency scaling governor on AC mode. With intel_pstate driver,
alternatives are powersave and performance. With acpi-cpufreq driver,
alternatives are ondemand, powersave, performance and conservative.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-space-separated-string-list cpu-scaling-governor-on-bat
Same as @code{cpu-scaling-governor-on-ac} but on BAT mode.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer cpu-scaling-min-freq-on-ac
Set the min available frequency for the scaling governor on AC.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer cpu-scaling-max-freq-on-ac
Set the max available frequency for the scaling governor on AC.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer cpu-scaling-min-freq-on-bat
Set the min available frequency for the scaling governor on BAT.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer cpu-scaling-max-freq-on-bat
Set the max available frequency for the scaling governor on BAT.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer cpu-min-perf-on-ac
Limit the min P-state to control the power dissipation of the CPU, in AC
mode. Values are stated as a percentage of the available performance.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer cpu-max-perf-on-ac
Limit the max P-state to control the power dissipation of the CPU, in AC
mode. Values are stated as a percentage of the available performance.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer cpu-min-perf-on-bat
Same as @code{cpu-min-perf-on-ac} on BAT mode.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-non-negative-integer cpu-max-perf-on-bat
Same as @code{cpu-max-perf-on-ac} on BAT mode.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-boolean cpu-boost-on-ac?
Enable CPU turbo boost feature on AC mode.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-boolean cpu-boost-on-bat?
Same as @code{cpu-boost-on-ac?} on BAT mode.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean sched-powersave-on-ac?
Allow Linux kernel to minimize the number of CPU cores/hyper-threads
used under light load conditions.
Defaults to @samp{#f}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean sched-powersave-on-bat?
Same as @code{sched-powersave-on-ac?} but on BAT mode.
Defaults to @samp{#t}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean nmi-watchdog?
Enable Linux kernel NMI watchdog.
Defaults to @samp{#f}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-string phc-controls
For Linux kernels with PHC patch applied, change CPU voltages. An
example value would be @samp{"F:V F:V F:V F:V"}.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string energy-perf-policy-on-ac
Set CPU performance versus energy saving policy on AC. Alternatives are
performance, normal, powersave.
Defaults to @samp{"performance"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string energy-perf-policy-on-bat
Same as @code{energy-perf-policy-ac} but on BAT mode.
Defaults to @samp{"powersave"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} space-separated-string-list disks-devices
Hard disk devices.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} space-separated-string-list disk-apm-level-on-ac
Hard disk advanced power management level.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} space-separated-string-list disk-apm-level-on-bat
Same as @code{disk-apm-bat} but on BAT mode.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-space-separated-string-list disk-spindown-timeout-on-ac
Hard disk spin down timeout. One value has to be specified for each
declared hard disk.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-space-separated-string-list disk-spindown-timeout-on-bat
Same as @code{disk-spindown-timeout-on-ac} but on BAT mode.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-space-separated-string-list disk-iosched
Select IO scheduler for disk devices. One value has to be specified for
each declared hard disk. Example alternatives are cfq, deadline and
noop.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string sata-linkpwr-on-ac
SATA aggressive link power management (ALPM) level. Alternatives are
min_power, medium_power, max_performance.
Defaults to @samp{"max_performance"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string sata-linkpwr-on-bat
Same as @code{sata-linkpwr-ac} but on BAT mode.
Defaults to @samp{"min_power"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-string sata-linkpwr-blacklist
Exclude specified SATA host devices for link power management.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-on-off-boolean ahci-runtime-pm-on-ac?
Enable Runtime Power Management for AHCI controller and disks on AC
mode.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-on-off-boolean ahci-runtime-pm-on-bat?
Same as @code{ahci-runtime-pm-on-ac} on BAT mode.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} non-negative-integer ahci-runtime-pm-timeout
Seconds of inactivity before disk is suspended.
Defaults to @samp{15}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string pcie-aspm-on-ac
PCI Express Active State Power Management level. Alternatives are
default, performance, powersave.
Defaults to @samp{"performance"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string pcie-aspm-on-bat
Same as @code{pcie-aspm-ac} but on BAT mode.
Defaults to @samp{"powersave"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string radeon-power-profile-on-ac
Radeon graphics clock speed level. Alternatives are low, mid, high,
auto, default.
Defaults to @samp{"high"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string radeon-power-profile-on-bat
Same as @code{radeon-power-ac} but on BAT mode.
Defaults to @samp{"low"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string radeon-dpm-state-on-ac
Radeon dynamic power management method (DPM). Alternatives are battery,
performance.
Defaults to @samp{"performance"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string radeon-dpm-state-on-bat
Same as @code{radeon-dpm-state-ac} but on BAT mode.
Defaults to @samp{"battery"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string radeon-dpm-perf-level-on-ac
Radeon DPM performance level. Alternatives are auto, low, high.
Defaults to @samp{"auto"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string radeon-dpm-perf-level-on-bat
Same as @code{radeon-dpm-perf-ac} but on BAT mode.
Defaults to @samp{"auto"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} on-off-boolean wifi-pwr-on-ac?
Wifi power saving mode.
Defaults to @samp{#f}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} on-off-boolean wifi-pwr-on-bat?
Same as @code{wifi-power-ac?} but on BAT mode.
Defaults to @samp{#t}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} y-n-boolean wol-disable?
Disable wake on LAN.
Defaults to @samp{#t}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} non-negative-integer sound-power-save-on-ac
Timeout duration in seconds before activating audio power saving on
Intel HDA and AC97 devices. A value of 0 disables power saving.
Defaults to @samp{0}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} non-negative-integer sound-power-save-on-bat
Same as @code{sound-powersave-ac} but on BAT mode.
Defaults to @samp{1}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} y-n-boolean sound-power-save-controller?
Disable controller in powersaving mode on Intel HDA devices.
Defaults to @samp{#t}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean bay-poweroff-on-bat?
Enable optical drive in UltraBay/MediaBay on BAT mode. Drive can be
powered on again by releasing (and reinserting) the eject lever or by
pressing the disc eject button on newer models.
Defaults to @samp{#f}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string bay-device
Name of the optical drive device to power off.
Defaults to @samp{"sr0"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string runtime-pm-on-ac
Runtime Power Management for PCI(e) bus devices. Alternatives are on
and auto.
Defaults to @samp{"on"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} string runtime-pm-on-bat
Same as @code{runtime-pm-ac} but on BAT mode.
Defaults to @samp{"auto"}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean runtime-pm-all?
Runtime Power Management for all PCI(e) bus devices, except blacklisted
ones.
Defaults to @samp{#t}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-space-separated-string-list runtime-pm-blacklist
Exclude specified PCI(e) devices adresses from Runtime Power Management.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} space-separated-string-list runtime-pm-driver-blacklist
Exclude PCI(e) devices assigned to the specified drivers from Runtime
Power Management.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean usb-autosuspend?
Enable USB autosuspend feature.
Defaults to @samp{#t}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-string usb-blacklist
Exclude specified devices from USB autosuspend.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean usb-blacklist-wwan?
Exclude WWAN devices from USB autosuspend.
Defaults to @samp{#t}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-string usb-whitelist
Include specified devices into USB autosuspend, even if they are already
excluded by the driver or via @code{usb-blacklist-wwan?}.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} maybe-boolean usb-autosuspend-disable-on-shutdown?
Enable USB autosuspend before shutdown.
Defaults to @samp{disabled}.
@end deftypevr
@deftypevr {@code{tlp-configuration} parameter} boolean restore-device-state-on-startup?
Restore radio device state (bluetooth, wifi, wwan) from previous
shutdown on system startup.
Defaults to @samp{#f}.
@end deftypevr
@node Miscellaneous Services
@subsubsection Miscellaneous Services

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@ -10,6 +10,7 @@
# Copyright © 2016, 2017 Ricardo Wurmus <rekado@elephly.net>
# Copyright © 2016 Ben Woodcroft <donttrustben@gmail.com>
# Copyright © 2017 Clément Lassieur <clement@lassieur.org>
# Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
#
# This file is part of GNU Guix.
#
@ -422,6 +423,7 @@ GNU_SYSTEM_MODULES = \
%D%/services/nfs.scm \
%D%/services/shepherd.scm \
%D%/services/herd.scm \
%D%/services/pm.scm \
%D%/services/sddm.scm \
%D%/services/spice.scm \
%D%/services/ssh.scm \

404
gnu/services/pm.scm Normal file
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@ -0,0 +1,404 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software: you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation, either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu services pm)
#:use-module (guix gexp)
#:use-module (guix packages)
#:use-module (guix records)
#:use-module (gnu packages linux)
#:use-module (gnu services)
#:use-module (gnu services base)
#:use-module (gnu services configuration)
#:use-module (gnu services shepherd)
#:use-module (gnu system shadow)
#:export (tlp-service-type
tlp-configuration))
(define (uglify-field-name field-name)
(let ((str (symbol->string field-name)))
(string-join (string-split
(string-upcase
(if (string-suffix? "?" str)
(substring str 0 (1- (string-length str)))
str))
#\-)
"_")))
(define (serialize-field field-name val)
(format #t "~a=~a\n" (uglify-field-name field-name) val))
(define (serialize-boolean field-name val)
(serialize-field field-name (if val "1" "0")))
(define-maybe boolean)
(define (serialize-string field-name val)
(serialize-field field-name val))
(define-maybe string)
(define (space-separated-string-list? val)
(and (list? val)
(and-map (lambda (x)
(and (string? x) (not (string-index x #\space))))
val)))
(define (serialize-space-separated-string-list field-name val)
(serialize-field field-name
(format #f "~s"
(string-join val " "))))
(define-maybe space-separated-string-list)
(define (non-negative-integer? val)
(and (exact-integer? val) (not (negative? val))))
(define (serialize-non-negative-integer field-name val)
(serialize-field field-name val))
(define-maybe non-negative-integer)
(define (on-off-boolean? val)
(boolean? val))
(define (serialize-on-off-boolean field-name val)
(serialize-field field-name (if val "on" "off")))
(define-maybe on-off-boolean)
(define (y-n-boolean? val)
(boolean? val))
(define (serialize-y-n-boolean field-name val)
(serialize-field field-name (if val "Y" "N")))
(define-configuration tlp-configuration
(tlp
(package tlp)
"The TLP package.")
(tlp-enable?
(boolean #t)
"Set to true if you wish to enable TLP.")
(tlp-default-mode
(string "AC")
"Default mode when no power supply can be detected. Alternatives are
AC and BAT.")
(disk-idle-secs-on-ac
(non-negative-integer 0)
"Number of seconds Linux kernel has to wait after the disk goes idle,
before syncing on AC.")
(disk-idle-secs-on-bat
(non-negative-integer 2)
"Same as @code{disk-idle-ac} but on BAT mode.")
(max-lost-work-secs-on-ac
(non-negative-integer 15)
"Dirty pages flushing periodicity, expressed in seconds.")
(max-lost-work-secs-on-bat
(non-negative-integer 60)
"Same as @code{max-lost-work-secs-on-ac} but on BAT mode.")
(cpu-scaling-governor-on-ac
(maybe-space-separated-string-list 'disabled)
"CPU frequency scaling governor on AC mode. With intel_pstate
driver, alternatives are powersave and performance. With acpi-cpufreq driver,
alternatives are ondemand, powersave, performance and conservative.")
(cpu-scaling-governor-on-bat
(maybe-space-separated-string-list 'disabled)
"Same as @code{cpu-scaling-governor-on-ac} but on BAT mode.")
(cpu-scaling-min-freq-on-ac
(maybe-non-negative-integer 'disabled)
"Set the min available frequency for the scaling governor on AC.")
(cpu-scaling-max-freq-on-ac
(maybe-non-negative-integer 'disabled)
"Set the max available frequency for the scaling governor on AC.")
(cpu-scaling-min-freq-on-bat
(maybe-non-negative-integer 'disabled)
"Set the min available frequency for the scaling governor on BAT.")
(cpu-scaling-max-freq-on-bat
(maybe-non-negative-integer 'disabled)
"Set the max available frequency for the scaling governor on BAT.")
(cpu-min-perf-on-ac
(maybe-non-negative-integer 'disabled)
"Limit the min P-state to control the power dissipation of the CPU,
in AC mode. Values are stated as a percentage of the available performance.")
(cpu-max-perf-on-ac
(maybe-non-negative-integer 'disabled)
"Limit the max P-state to control the power dissipation of the CPU,
in AC mode. Values are stated as a percentage of the available performance.")
(cpu-min-perf-on-bat
(maybe-non-negative-integer 'disabled)
"Same as @code{cpu-min-perf-on-ac} on BAT mode.")
(cpu-max-perf-on-bat
(maybe-non-negative-integer 'disabled)
"Same as @code{cpu-max-perf-on-ac} on BAT mode.")
(cpu-boost-on-ac?
(maybe-boolean 'disabled)
"Enable CPU turbo boost feature on AC mode.")
(cpu-boost-on-bat?
(maybe-boolean 'disabled)
"Same as @code{cpu-boost-on-ac?} on BAT mode.")
(sched-powersave-on-ac?
(boolean #f)
"Allow Linux kernel to minimize the number of CPU cores/hyper-threads
used under light load conditions.")
(sched-powersave-on-bat?
(boolean #t)
"Same as @code{sched-powersave-on-ac?} but on BAT mode.")
(nmi-watchdog?
(boolean #f)
"Enable Linux kernel NMI watchdog.")
(phc-controls
(maybe-string 'disabled)
"For Linux kernels with PHC patch applied, change CPU voltages.
An example value would be @samp{\"F:V F:V F:V F:V\"}.")
(energy-perf-policy-on-ac
(string "performance")
"Set CPU performance versus energy saving policy on AC. Alternatives are
performance, normal, powersave.")
(energy-perf-policy-on-bat
(string "powersave")
"Same as @code{energy-perf-policy-ac} but on BAT mode.")
(disks-devices
(space-separated-string-list '("sda"))
"Hard disk devices.")
(disk-apm-level-on-ac
(space-separated-string-list '("254" "254"))
"Hard disk advanced power management level.")
(disk-apm-level-on-bat
(space-separated-string-list '("128" "128"))
"Same as @code{disk-apm-bat} but on BAT mode.")
(disk-spindown-timeout-on-ac
(maybe-space-separated-string-list 'disabled)
"Hard disk spin down timeout. One value has to be specified for
each declared hard disk.")
(disk-spindown-timeout-on-bat
(maybe-space-separated-string-list 'disabled)
"Same as @code{disk-spindown-timeout-on-ac} but on BAT mode.")
(disk-iosched
(maybe-space-separated-string-list 'disabled)
"Select IO scheduler for disk devices. One value has to be specified
for each declared hard disk. Example alternatives are cfq, deadline and noop.")
(sata-linkpwr-on-ac
(string "max_performance")
"SATA aggressive link power management (ALPM) level. Alternatives are
min_power, medium_power, max_performance.")
(sata-linkpwr-on-bat
(string "min_power")
"Same as @code{sata-linkpwr-ac} but on BAT mode.")
(sata-linkpwr-blacklist
(maybe-string 'disabled)
"Exclude specified SATA host devices for link power management.")
(ahci-runtime-pm-on-ac?
(maybe-on-off-boolean 'disabled)
"Enable Runtime Power Management for AHCI controller and disks
on AC mode.")
(ahci-runtime-pm-on-bat?
(maybe-on-off-boolean 'disabled)
"Same as @code{ahci-runtime-pm-on-ac} on BAT mode.")
(ahci-runtime-pm-timeout
(non-negative-integer 15)
"Seconds of inactivity before disk is suspended.")
(pcie-aspm-on-ac
(string "performance")
"PCI Express Active State Power Management level. Alternatives are
default, performance, powersave.")
(pcie-aspm-on-bat
(string "powersave")
"Same as @code{pcie-aspm-ac} but on BAT mode.")
(radeon-power-profile-on-ac
(string "high")
"Radeon graphics clock speed level. Alternatives are
low, mid, high, auto, default.")
(radeon-power-profile-on-bat
(string "low")
"Same as @code{radeon-power-ac} but on BAT mode.")
(radeon-dpm-state-on-ac
(string "performance")
"Radeon dynamic power management method (DPM). Alternatives are
battery, performance.")
(radeon-dpm-state-on-bat
(string "battery")
"Same as @code{radeon-dpm-state-ac} but on BAT mode.")
(radeon-dpm-perf-level-on-ac
(string "auto")
"Radeon DPM performance level. Alternatives are
auto, low, high.")
(radeon-dpm-perf-level-on-bat
(string "auto")
"Same as @code{radeon-dpm-perf-ac} but on BAT mode.")
(wifi-pwr-on-ac?
(on-off-boolean #f)
"Wifi power saving mode.")
(wifi-pwr-on-bat?
(on-off-boolean #t)
"Same as @code{wifi-power-ac?} but on BAT mode.")
(wol-disable?
(y-n-boolean #t)
"Disable wake on LAN.")
(sound-power-save-on-ac
(non-negative-integer 0)
"Timeout duration in seconds before activating audio power saving
on Intel HDA and AC97 devices. A value of 0 disables power saving.")
(sound-power-save-on-bat
(non-negative-integer 1)
"Same as @code{sound-powersave-ac} but on BAT mode.")
(sound-power-save-controller?
(y-n-boolean #t)
"Disable controller in powersaving mode on Intel HDA devices.")
(bay-poweroff-on-bat?
(boolean #f)
"Enable optical drive in UltraBay/MediaBay on BAT mode.
Drive can be powered on again by releasing (and reinserting) the eject lever
or by pressing the disc eject button on newer models.")
(bay-device
(string "sr0")
"Name of the optical drive device to power off.")
(runtime-pm-on-ac
(string "on")
"Runtime Power Management for PCI(e) bus devices. Alternatives are
on and auto.")
(runtime-pm-on-bat
(string "auto")
"Same as @code{runtime-pm-ac} but on BAT mode.")
(runtime-pm-all?
(boolean #t)
"Runtime Power Management for all PCI(e) bus devices, except
blacklisted ones.")
(runtime-pm-blacklist
(maybe-space-separated-string-list 'disabled)
"Exclude specified PCI(e) devices adresses from Runtime Power Management.")
(runtime-pm-driver-blacklist
(space-separated-string-list '("radeon" "nouveau"))
"Exclude PCI(e) devices assigned to the specified drivers from
Runtime Power Management.")
(usb-autosuspend?
(boolean #t)
"Enable USB autosuspend feature.")
(usb-blacklist
(maybe-string 'disabled)
"Exclude specified devices from USB autosuspend.")
(usb-blacklist-wwan?
(boolean #t)
"Exclude WWAN devices from USB autosuspend.")
(usb-whitelist
(maybe-string 'disabled)
"Include specified devices into USB autosuspend, even if they are
already excluded by the driver or via @code{usb-blacklist-wwan?}.")
(usb-autosuspend-disable-on-shutdown?
(maybe-boolean 'disabled)
"Enable USB autosuspend before shutdown.")
(restore-device-state-on-startup?
(boolean #f)
"Restore radio device state (bluetooth, wifi, wwan) from previous
shutdown on system startup."))
(define (tlp-shepherd-service config)
(let* ((tlp-bin (file-append
(tlp-configuration-tlp config) "/bin/tlp"))
(tlp-action (lambda args
#~(lambda _
(zero? (system* #$tlp-bin #$@args))))))
(list (shepherd-service
(documentation "Run TLP script.")
(provision '(tlp))
(requirement '(user-processes))
(start (tlp-action "init" "start"))
(stop (tlp-action "init" "stop"))))))
(define (tlp-activation config)
(let* ((config-str (with-output-to-string
(lambda ()
(serialize-configuration
config
tlp-configuration-fields))))
(config-file (plain-file "tlp" config-str)))
(with-imported-modules '((guix build utils))
#~(begin
(use-modules (guix build utils))
(copy-file #$config-file "/etc/tlp")))))
(define tlp-service-type
(service-type
(name 'tlp)
(extensions
(list
(service-extension shepherd-root-service-type
tlp-shepherd-service)
(service-extension udev-service-type
(compose list tlp-configuration-tlp))
(service-extension activation-service-type
tlp-activation)))))
(define (generate-tlp-documentation)
(generate-documentation
`((tlp-configuration ,tlp-configuration-fields))
'tlp-configuration))