Lines Matching +full:power +full:- +full:on
1 # SPDX-License-Identifier: GPL-2.0-only
4 depends on ARCH_SUSPEND_POSSIBLE
9 suspend-to-RAM state (e.g. the ACPI S3 state).
14 depends on SUSPEND
23 bool "Skip kernel's sys_sync() on suspend to RAM/standby"
24 depends on SUSPEND
25 depends on EXPERT
28 Some systems prefer not to pay this cost on every invocation
30 user-space before invoking suspend. There's a run-time switch
31 at '/sys/power/sync_on_suspend' to configure this behaviour.
32 This setting changes the default for the run-tim switch. Say Y
40 depends on SWAP && ARCH_HIBERNATION_POSSIBLE
48 system and powers it off; and restores that checkpoint on reboot.
50 You can suspend your machine with 'echo disk > /sys/power/state'
51 after placing resume=/dev/swappartition on the kernel command line
60 for suspend states like suspend-to-RAM (STR) often don't work very
68 Note, however, that fsck will be run on your filesystems and you will
72 <file:Documentation/power/swsusp-and-swap-files.rst>).
81 For more information take a look at <file:Documentation/power/swsusp.rst>.
85 depends on HIBERNATION
97 depends on HIBERNATION
100 The default resume partition is the partition that the suspend-
101 to-disk implementation will look for a suspended disk image.
105 on before suspending.
119 depends on SUSPEND || HIBERNATE_CALLBACKS
124 depends on SMP
125 depends on ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE
126 depends on PM_SLEEP
131 depends on PM_SLEEP_SMP
132 depends on ARCH_SUSPEND_NONZERO_CPU
134 If an arch can suspend (for suspend, hibernate, kexec, etc) on a
135 non-zero numbered CPU, it may define ARCH_SUSPEND_NONZERO_CPU. This
140 depends on PM_SLEEP
147 depends on PM_SLEEP
149 Notify kernel of aggressive userspace autosleep power management policy.
151 This option changes the behavior of various sleep-sensitive code to deal
152 with frequent userspace-initiated transitions into a global sleep state.
159 a userspace power manager service should enable this option; and not
167 depends on PM_SLEEP
170 objects with the help of a sysfs-based interface.
176 depends on PM_WAKELOCKS
180 depends on PM_WAKELOCKS
184 bool "Device power management core functionality"
186 Enable functionality allowing I/O devices to be put into energy-saving
187 (low power) states, for example after a specified period of inactivity
188 (autosuspended), and woken up in response to a hardware-generated
189 wake-up event or a driver's request.
192 and the bus type drivers of the buses the devices are on are
194 wake-up events.
197 bool "Power Management Debug Support"
198 depends on PM
200 This option enables various debugging support in the Power Management
205 bool "Extra PM attributes in sysfs for low-level debugging/testing"
206 depends on PM_DEBUG
208 Add extra sysfs attributes allowing one to access some Power Management
210 developer interested in debugging/testing Power Management, say "no".
214 depends on SUSPEND && PM_DEBUG && RTC_CLASS=y
225 depends on PM_DEBUG && PM_SLEEP
229 depends on PM_DEBUG && PSTORE && EXPERT
241 depends on DPM_WATCHDOG
251 functions from <linux/resume-trace.h> as well as the
252 <asm/resume-trace.h> header with a TRACE_RESUME() macro.
254 The way the information is presented is architecture-
260 depends on PM_SLEEP_DEBUG
261 depends on X86
271 dmesg -s 1000000 | grep 'hash matches'
273 CAUTION: this option will cause your machine's real-time clock to be
277 tristate "Advanced Power Management Emulation"
278 depends on SYS_SUPPORTS_APM_EMULATION
280 APM is a BIOS specification for saving power using several different
284 battery status information, and user-space programs will receive
288 and more information, read <file:Documentation/power/apm-acpi.rst>
289 and the Battery Powered Linux mini-HOWTO, available from
294 VESA-compliant "green" monitors.
304 depends on PM && HAVE_CLK
308 depends on PM
311 bool "Enable workqueue power-efficient mode by default"
312 depends on PM
314 Per-cpu workqueues are generally preferred because they show
316 per-cpu workqueues tend to be more power hungry than unbound
320 per-cpu workqueues which were observed to contribute
321 significantly to power consumption unbound, leading to measurably
322 lower power usage at the cost of small performance overhead.
331 depends on PM_SLEEP && PM_GENERIC_DOMAINS
335 depends on PM_GENERIC_DOMAINS && OF
342 depends on SMP
343 depends on CPU_FREQ
350 The exact usage of the energy model is subsystem-dependent.