Lines Matching +full:use +full:- +full:ram +full:- +full:code
1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "Suspend to RAM and standby"
9 suspend-to-RAM state (e.g. the ACPI S3 state).
12 bool "Enable freezer for suspend to RAM/standby" \
18 done, no tasks are frozen for suspend to RAM/standby.
23 bool "Skip kernel's sys_sync() on suspend to RAM/standby"
30 user-space before invoking suspend. There's a run-time switch
32 This setting changes the default for the run-tim switch. Say Y
54 Alternatively, you can use the additional userland tools available
59 of the reasons to use software suspend is that the firmware hooks
60 for suspend states like suspend-to-RAM (STR) often don't work very
67 be reloaded, then use the 'noresume' kernel command line argument.
72 <file:Documentation/power/swsusp-and-swap-files.rst>).
75 meantime you cannot use the swap partition(s)/file(s) involved in
76 suspending. Also in this case you must not use the filesystems
122 The default resume partition is the partition that the suspend-
123 to-disk implementation will look for a suspended disk image.
157 non-zero numbered CPU, it may define ARCH_SUSPEND_NONZERO_CPU. This
173 This option changes the behavior of various sleep-sensitive code to deal
174 with frequent userspace-initiated transitions into a global sleep state.
176 Saying Y here, disables code paths that most users really should keep
192 objects with the help of a sysfs-based interface.
208 Enable functionality allowing I/O devices to be put into energy-saving
210 (autosuspended), and woken up in response to a hardware-generated
211 wake-up event or a driver's request.
216 wake-up events.
223 code. This is helpful when debugging and reporting PM bugs, like
227 bool "Extra PM attributes in sysfs for low-level debugging/testing"
268 This enables code to save the last PM event point across
272 The architecture specific code must provide the extern
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-
286 This enables some cheesy code to save the last PM event point in the
290 To use this debugging feature you should attempt to suspend the
293 dmesg -s 1000000 | grep 'hash matches'
295 CAUTION: this option will cause your machine's real-time clock to be
306 battery status information, and user-space programs will receive
309 In order to use APM, you will need supporting software. For location
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.
333 bool "Enable workqueue power-efficient mode by default"
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
372 The exact usage of the energy model is subsystem-dependent.