469 lines
14 KiB
Scheme
469 lines
14 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation, either version 3 of the License, or
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;;; (at your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (gnu services pm)
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#:use-module (guix gexp)
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#:use-module (guix packages)
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#:use-module (guix records)
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#:use-module (gnu packages admin)
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#:use-module (gnu packages linux)
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#:use-module (gnu services)
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#:use-module (gnu services base)
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#:use-module (gnu services configuration)
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#:use-module (gnu services shepherd)
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#:use-module (gnu system shadow)
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#:export (tlp-service-type
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tlp-configuration
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thermald-configuration
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thermald-service-type))
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(define (uglify-field-name field-name)
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(let ((str (symbol->string field-name)))
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(string-join (string-split
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(string-upcase
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(if (string-suffix? "?" str)
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(substring str 0 (1- (string-length str)))
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str))
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#\-)
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"_")))
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(define (serialize-field field-name val)
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(format #t "~a=~a\n" (uglify-field-name field-name) val))
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(define (serialize-boolean field-name val)
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(serialize-field field-name (if val "1" "0")))
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(define-maybe boolean)
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(define (serialize-string field-name val)
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(serialize-field field-name val))
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(define-maybe string)
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(define (space-separated-string-list? val)
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(and (list? val)
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(and-map (lambda (x)
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(and (string? x) (not (string-index x #\space))))
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val)))
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(define (serialize-space-separated-string-list field-name val)
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(serialize-field field-name
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(format #f "~s"
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(string-join val " "))))
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(define-maybe space-separated-string-list)
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(define (non-negative-integer? val)
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(and (exact-integer? val) (not (negative? val))))
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(define (serialize-non-negative-integer field-name val)
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(serialize-field field-name val))
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(define-maybe non-negative-integer)
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(define (on-off-boolean? val)
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(boolean? val))
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(define (serialize-on-off-boolean field-name val)
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(serialize-field field-name (if val "on" "off")))
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(define-maybe on-off-boolean)
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(define (y-n-boolean? val)
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(boolean? val))
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(define (serialize-y-n-boolean field-name val)
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(serialize-field field-name (if val "Y" "N")))
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(define-configuration tlp-configuration
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(tlp
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(file-like tlp)
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"The TLP package.")
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(tlp-enable?
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(boolean #t)
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"Set to true if you wish to enable TLP.")
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(tlp-default-mode
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(string "AC")
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"Default mode when no power supply can be detected. Alternatives are
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AC and BAT.")
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(disk-idle-secs-on-ac
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(non-negative-integer 0)
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"Number of seconds Linux kernel has to wait after the disk goes idle,
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before syncing on AC.")
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(disk-idle-secs-on-bat
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(non-negative-integer 2)
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"Same as @code{disk-idle-ac} but on BAT mode.")
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(max-lost-work-secs-on-ac
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(non-negative-integer 15)
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"Dirty pages flushing periodicity, expressed in seconds.")
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(max-lost-work-secs-on-bat
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(non-negative-integer 60)
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"Same as @code{max-lost-work-secs-on-ac} but on BAT mode.")
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(cpu-scaling-governor-on-ac
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maybe-space-separated-string-list
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"CPU frequency scaling governor on AC mode. With intel_pstate
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driver, alternatives are powersave and performance. With acpi-cpufreq driver,
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alternatives are ondemand, powersave, performance and conservative.")
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(cpu-scaling-governor-on-bat
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maybe-space-separated-string-list
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"Same as @code{cpu-scaling-governor-on-ac} but on BAT mode.")
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(cpu-scaling-min-freq-on-ac
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maybe-non-negative-integer
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"Set the min available frequency for the scaling governor on AC.")
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(cpu-scaling-max-freq-on-ac
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maybe-non-negative-integer
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"Set the max available frequency for the scaling governor on AC.")
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(cpu-scaling-min-freq-on-bat
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maybe-non-negative-integer
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"Set the min available frequency for the scaling governor on BAT.")
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(cpu-scaling-max-freq-on-bat
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maybe-non-negative-integer
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"Set the max available frequency for the scaling governor on BAT.")
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(cpu-min-perf-on-ac
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maybe-non-negative-integer
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"Limit the min P-state to control the power dissipation of the CPU,
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in AC mode. Values are stated as a percentage of the available performance.")
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(cpu-max-perf-on-ac
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maybe-non-negative-integer
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"Limit the max P-state to control the power dissipation of the CPU,
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in AC mode. Values are stated as a percentage of the available performance.")
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(cpu-min-perf-on-bat
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maybe-non-negative-integer
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"Same as @code{cpu-min-perf-on-ac} on BAT mode.")
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(cpu-max-perf-on-bat
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maybe-non-negative-integer
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"Same as @code{cpu-max-perf-on-ac} on BAT mode.")
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(cpu-boost-on-ac?
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maybe-boolean
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"Enable CPU turbo boost feature on AC mode.")
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(cpu-boost-on-bat?
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maybe-boolean
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"Same as @code{cpu-boost-on-ac?} on BAT mode.")
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(sched-powersave-on-ac?
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(boolean #f)
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"Allow Linux kernel to minimize the number of CPU cores/hyper-threads
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used under light load conditions.")
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(sched-powersave-on-bat?
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(boolean #t)
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"Same as @code{sched-powersave-on-ac?} but on BAT mode.")
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(nmi-watchdog?
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(boolean #f)
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"Enable Linux kernel NMI watchdog.")
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(phc-controls
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maybe-string
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"For Linux kernels with PHC patch applied, change CPU voltages.
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An example value would be @samp{\"F:V F:V F:V F:V\"}.")
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(energy-perf-policy-on-ac
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(string "performance")
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"Set CPU performance versus energy saving policy on AC. Alternatives are
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performance, normal, powersave.")
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(energy-perf-policy-on-bat
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(string "powersave")
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"Same as @code{energy-perf-policy-ac} but on BAT mode.")
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(disks-devices
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(space-separated-string-list '("sda"))
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"Hard disk devices.")
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(disk-apm-level-on-ac
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(space-separated-string-list '("254" "254"))
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"Hard disk advanced power management level.")
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(disk-apm-level-on-bat
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(space-separated-string-list '("128" "128"))
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"Same as @code{disk-apm-bat} but on BAT mode.")
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(disk-spindown-timeout-on-ac
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maybe-space-separated-string-list
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"Hard disk spin down timeout. One value has to be specified for
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each declared hard disk.")
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(disk-spindown-timeout-on-bat
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maybe-space-separated-string-list
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"Same as @code{disk-spindown-timeout-on-ac} but on BAT mode.")
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(disk-iosched
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maybe-space-separated-string-list
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"Select IO scheduler for disk devices. One value has to be specified
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for each declared hard disk. Example alternatives are cfq, deadline and noop.")
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(sata-linkpwr-on-ac
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(string "max_performance")
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"SATA aggressive link power management (ALPM) level. Alternatives are
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min_power, medium_power, max_performance.")
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(sata-linkpwr-on-bat
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(string "min_power")
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"Same as @code{sata-linkpwr-ac} but on BAT mode.")
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(sata-linkpwr-blacklist
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maybe-string
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"Exclude specified SATA host devices for link power management.")
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(ahci-runtime-pm-on-ac?
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maybe-on-off-boolean
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"Enable Runtime Power Management for AHCI controller and disks
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on AC mode.")
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(ahci-runtime-pm-on-bat?
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maybe-on-off-boolean
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"Same as @code{ahci-runtime-pm-on-ac} on BAT mode.")
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(ahci-runtime-pm-timeout
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(non-negative-integer 15)
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"Seconds of inactivity before disk is suspended.")
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(pcie-aspm-on-ac
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(string "performance")
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"PCI Express Active State Power Management level. Alternatives are
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default, performance, powersave.")
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(pcie-aspm-on-bat
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(string "powersave")
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"Same as @code{pcie-aspm-ac} but on BAT mode.")
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(start-charge-thresh-bat0
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maybe-non-negative-integer
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"Percentage when battery 0 should begin charging.")
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(stop-charge-thresh-bat0
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maybe-non-negative-integer
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"Percentage when battery 0 should stop charging.")
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(start-charge-thresh-bat1
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maybe-non-negative-integer
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"Percentage when battery 1 should begin charging.")
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(stop-charge-thresh-bat1
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maybe-non-negative-integer
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"Percentage when battery 1 should stop charging.")
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(radeon-power-profile-on-ac
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(string "high")
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"Radeon graphics clock speed level. Alternatives are
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low, mid, high, auto, default.")
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(radeon-power-profile-on-bat
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(string "low")
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"Same as @code{radeon-power-ac} but on BAT mode.")
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(radeon-dpm-state-on-ac
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(string "performance")
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"Radeon dynamic power management method (DPM). Alternatives are
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battery, performance.")
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(radeon-dpm-state-on-bat
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(string "battery")
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"Same as @code{radeon-dpm-state-ac} but on BAT mode.")
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(radeon-dpm-perf-level-on-ac
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(string "auto")
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"Radeon DPM performance level. Alternatives are
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auto, low, high.")
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(radeon-dpm-perf-level-on-bat
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(string "auto")
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"Same as @code{radeon-dpm-perf-ac} but on BAT mode.")
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(wifi-pwr-on-ac?
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(on-off-boolean #f)
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"Wifi power saving mode.")
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(wifi-pwr-on-bat?
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(on-off-boolean #t)
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"Same as @code{wifi-power-ac?} but on BAT mode.")
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(wol-disable?
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(y-n-boolean #t)
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"Disable wake on LAN.")
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(sound-power-save-on-ac
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(non-negative-integer 0)
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"Timeout duration in seconds before activating audio power saving
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on Intel HDA and AC97 devices. A value of 0 disables power saving.")
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(sound-power-save-on-bat
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(non-negative-integer 1)
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"Same as @code{sound-powersave-ac} but on BAT mode.")
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(sound-power-save-controller?
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(y-n-boolean #t)
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"Disable controller in powersaving mode on Intel HDA devices.")
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(bay-poweroff-on-bat?
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(boolean #f)
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"Enable optical drive in UltraBay/MediaBay on BAT mode.
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Drive can be powered on again by releasing (and reinserting) the eject lever
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or by pressing the disc eject button on newer models.")
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(bay-device
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(string "sr0")
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"Name of the optical drive device to power off.")
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(runtime-pm-on-ac
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(string "on")
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"Runtime Power Management for PCI(e) bus devices. Alternatives are
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on and auto.")
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(runtime-pm-on-bat
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(string "auto")
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"Same as @code{runtime-pm-ac} but on BAT mode.")
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(runtime-pm-all?
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(boolean #t)
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"Runtime Power Management for all PCI(e) bus devices, except
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blacklisted ones.")
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(runtime-pm-blacklist
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maybe-space-separated-string-list
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"Exclude specified PCI(e) device addresses from Runtime Power Management.")
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(runtime-pm-driver-blacklist
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(space-separated-string-list '("radeon" "nouveau"))
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"Exclude PCI(e) devices assigned to the specified drivers from
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Runtime Power Management.")
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(usb-autosuspend?
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(boolean #t)
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"Enable USB autosuspend feature.")
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(usb-blacklist
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maybe-string
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"Exclude specified devices from USB autosuspend.")
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(usb-blacklist-wwan?
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(boolean #t)
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"Exclude WWAN devices from USB autosuspend.")
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(usb-whitelist
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maybe-string
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"Include specified devices into USB autosuspend, even if they are
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already excluded by the driver or via @code{usb-blacklist-wwan?}.")
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(usb-autosuspend-disable-on-shutdown?
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maybe-boolean
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"Enable USB autosuspend before shutdown.")
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(restore-device-state-on-startup?
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(boolean #f)
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"Restore radio device state (bluetooth, wifi, wwan) from previous
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shutdown on system startup."))
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(define (tlp-shepherd-service config)
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(let* ((tlp-bin (file-append
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(tlp-configuration-tlp config) "/bin/tlp"))
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(tlp-action (lambda args
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#~(lambda _
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(zero? (system* #$tlp-bin #$@args))))))
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(list (shepherd-service
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(documentation "Run TLP script.")
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(provision '(tlp))
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(requirement '(user-processes))
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(start (tlp-action "init" "start"))
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(stop (tlp-action "init" "stop"))))))
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(define (tlp-activation config)
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(let* ((config-str (with-output-to-string
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(lambda ()
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(serialize-configuration
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config
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tlp-configuration-fields))))
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(config-file (plain-file "tlp" config-str)))
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(with-imported-modules '((guix build utils))
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#~(begin
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(use-modules (guix build utils))
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(copy-file #$config-file "/etc/tlp.conf")))))
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(define tlp-service-type
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(service-type
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(name 'tlp)
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(extensions
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(list
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(service-extension shepherd-root-service-type
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tlp-shepherd-service)
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(service-extension udev-service-type
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(compose list tlp-configuration-tlp))
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(service-extension activation-service-type
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tlp-activation)))
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(default-value (tlp-configuration))
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(description "Run TLP, a power management tool.")))
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(define (generate-tlp-documentation)
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(generate-documentation
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`((tlp-configuration ,tlp-configuration-fields))
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'tlp-configuration))
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;;;
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;;; thermald
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;;;
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;;; This service implements cpu scaling. Helps prevent overheating!
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(define-record-type* <thermald-configuration>
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thermald-configuration make-thermald-configuration
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thermald-configuration?
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(adaptive? thermald-adaptive? ;boolean
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(default #f))
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(ignore-cpuid-check? thermald-ignore-cpuid-check? ;boolean
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(default #f))
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(thermald thermald-thermald ;file-like
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(default thermald)))
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(define (thermald-shepherd-service config)
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(list
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(shepherd-service
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(provision '(thermald))
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(documentation "Run thermald cpu frequency scaling.")
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(start #~(make-forkexec-constructor
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'(#$(file-append (thermald-thermald config) "/sbin/thermald")
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"--no-daemon"
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#$@(if (thermald-adaptive? config)
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'("--adaptive")
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'())
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#$@(if (thermald-ignore-cpuid-check? config)
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'("--ignore-cpuid-check")
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'()))))
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(stop #~(make-kill-destructor)))))
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(define thermald-service-type
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(service-type
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(name 'thermald)
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(extensions (list (service-extension shepherd-root-service-type
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thermald-shepherd-service)))
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(default-value (thermald-configuration))
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(description "Run thermald, a CPU frequency scaling service that helps
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prevent overheating.")))
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