linux/kernel/power
Rafael J. Wysocki 77751a466e PM: QoS: Introduce frequency QoS
Introduce frequency QoS, based on the "raw" low-level PM QoS, to
represent min and max frequency requests and aggregate constraints.

The min and max frequency requests are to be represented by
struct freq_qos_request objects and the aggregate constraints are to
be represented by struct freq_constraints objects.  The latter are
expected to be initialized with the help of freq_constraints_init().

The freq_qos_read_value() helper is defined to retrieve the aggregate
constraints values from a given struct freq_constraints object and
there are the freq_qos_add_request(), freq_qos_update_request() and
freq_qos_remove_request() helpers to manipulate the min and max
frequency requests.  It is assumed that the the helpers will not
run concurrently with each other for the same struct freq_qos_request
object, so if that may be the case, their uses must ensure proper
synchronization between them (e.g. through locking).

In addition, freq_qos_add_notifier() and freq_qos_remove_notifier()
are provided to add and remove notifiers that will trigger on aggregate
constraint changes to and from a given struct freq_constraints object,
respectively.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-10-21 02:05:21 +02:00
..
autosleep.c PM / wakeup: Show wakeup sources stats in sysfs 2019-08-21 00:20:40 +02:00
console.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
energy_model.c sched/topology: Remove unused 'sd' parameter from arch_scale_cpu_capacity() 2019-06-24 19:23:39 +02:00
hibernate.c hibernate: Disable when the kernel is locked down 2019-08-19 21:54:15 -07:00
Kconfig pci-v5.3-changes 2019-07-15 20:44:49 -07:00
main.c PM: sleep: include <linux/pm_runtime.h> for pm_wq 2019-10-10 11:11:56 +02:00
Makefile PM: Introduce an Energy Model management framework 2018-12-11 15:16:58 +01:00
power.h PM: hibernate: powerpc: Expose pfn_is_nosave() prototype 2019-06-14 10:48:56 +02:00
poweroff.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 248 2019-06-19 17:09:08 +02:00
process.c PM / sleep: Show freezing tasks that caused a suspend abort 2018-09-10 12:09:10 +02:00
qos.c PM: QoS: Introduce frequency QoS 2019-10-21 02:05:21 +02:00
snapshot.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
suspend_test.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
suspend.c PM: suspend: Fix platform_suspend_prepare_noirq() 2019-08-10 13:18:06 +02:00
swap.c kernel: power: swap: use kzalloc() instead of kmalloc() followed by memset() 2019-06-28 10:20:39 +02:00
user.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 428 2019-06-05 17:37:16 +02:00
wakelock.c PM / wakeup: Show wakeup sources stats in sysfs 2019-08-21 00:20:40 +02:00