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
98 depends on HIBERNATION
102 depends on CRYPTO_LZO
106 depends on CRYPTO_LZ4
119 depends on HIBERNATION
122 The default resume partition is the partition that the suspend-
123 to-disk implementation will look for a suspended disk image.
127 on before suspending.
141 depends on SUSPEND || HIBERNATE_CALLBACKS
146 depends on SMP
147 depends on ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE
148 depends on PM_SLEEP
153 depends on PM_SLEEP_SMP
154 depends on ARCH_SUSPEND_NONZERO_CPU
156 If an arch can suspend (for suspend, hibernate, kexec, etc) on a
157 non-zero numbered CPU, it may define ARCH_SUSPEND_NONZERO_CPU. This
162 depends on PM_SLEEP
169 depends on PM_SLEEP
171 Notify kernel of aggressive userspace autosleep power management policy.
173 This option changes the behavior of various sleep-sensitive code to deal
174 with frequent userspace-initiated transitions into a global sleep state.
181 a userspace power manager service should enable this option; and not
189 depends on PM_SLEEP
192 objects with the help of a sysfs-based interface.
198 depends on PM_WAKELOCKS
202 depends on PM_WAKELOCKS
206 bool "Device power management core functionality"
208 Enable functionality allowing I/O devices to be put into energy-saving
209 (low power) states, for example after a specified period of inactivity
210 (autosuspended), and woken up in response to a hardware-generated
211 wake-up event or a driver's request.
214 and the bus type drivers of the buses the devices are on are
216 wake-up events.
219 bool "Power Management Debug Support"
220 depends on PM
222 This option enables various debugging support in the Power Management
227 bool "Extra PM attributes in sysfs for low-level debugging/testing"
228 depends on PM_DEBUG
230 Add extra sysfs attributes allowing one to access some Power Management
232 developer interested in debugging/testing Power Management, say "no".
236 depends on SUSPEND && PM_DEBUG && RTC_CLASS=y
247 depends on PM_DEBUG && PM_SLEEP
251 depends on PM_DEBUG && PSTORE && EXPERT
263 depends on DPM_WATCHDOG
273 functions from <linux/resume-trace.h> as well as the
274 <asm/resume-trace.h> header with a TRACE_RESUME() macro.
276 The way the information is presented is architecture-
282 depends on PM_SLEEP_DEBUG
283 depends on X86
293 dmesg -s 1000000 | grep 'hash matches'
295 CAUTION: this option will cause your machine's real-time clock to be
299 tristate "Advanced Power Management Emulation"
300 depends on SYS_SUPPORTS_APM_EMULATION
302 APM is a BIOS specification for saving power using several different
306 battery status information, and user-space programs will receive
310 and more information, read <file:Documentation/power/apm-acpi.rst>
311 and the Battery Powered Linux mini-HOWTO, available from
316 VESA-compliant "green" monitors.
326 depends on PM && HAVE_CLK
330 depends on PM
333 bool "Enable workqueue power-efficient mode by default"
334 depends on PM
336 Per-cpu workqueues are generally preferred because they show
338 per-cpu workqueues tend to be more power hungry than unbound
342 per-cpu workqueues which were observed to contribute
343 significantly to power consumption unbound, leading to measurably
344 lower power usage at the cost of small performance overhead.
353 depends on PM_SLEEP && PM_GENERIC_DOMAINS
357 depends on PM_GENERIC_DOMAINS && OF
364 depends on SMP
365 depends on CPU_FREQ
372 The exact usage of the energy model is subsystem-dependent.