linux/kernel/power
Mario Limonciello b52124a78a PM: Add sysfs files to represent time spent in hardware sleep state
Userspace can't easily discover how much of a sleep cycle was spent in a
hardware sleep state without using kernel tracing and vendor specific sysfs
or debugfs files.

To make this information more discoverable, introduce 3 new sysfs files:
1) The time spent in a hw sleep state for last cycle.
2) The time spent in a hw sleep state since the kernel booted
3) The maximum time that the hardware can report for a sleep cycle.
All of these files will be present only if the system supports s2idle.

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-04-20 19:06:12 +02:00
..
autosleep.c PM: sleep: fix typos in comments 2021-04-08 19:37:21 +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 PM: EM: fix memory leak with using debugfs_lookup() 2023-02-09 20:36:10 +01:00
hibernate.c PM: hibernate: Allow hybrid sleep to work with s2idle 2022-10-25 14:53:19 +02:00
Kconfig PM: sleep: Remove "select SRCU" 2023-01-20 17:53:07 +01:00
main.c PM: Add sysfs files to represent time spent in hardware sleep state 2023-04-20 19:06:12 +02:00
Makefile PM: sleep: Narrow down -DDEBUG on kernel/power/ files 2022-04-13 16:34:01 +02:00
power.h PM: hibernate: Allow ACPI hardware signature to be honoured 2021-12-08 16:06:10 +01:00
poweroff.c kernel/power: constify sysrq_key_op 2020-05-15 14:53:20 +02:00
process.c PM: sleep: Refine error message in try_to_freeze_tasks() 2022-12-06 12:04:34 +01:00
qos.c PM: QoS: Add check to make sure CPU freq is non-negative 2022-07-26 20:48:33 +02:00
snapshot.c PM: hibernate: Complain about memory map mismatches during resume 2022-12-01 19:20:14 +01:00
suspend_test.c PM: suspend: fix return value of __setup handler 2022-03-01 18:55:07 +01:00
suspend.c Scheduler changes for v6.1: 2022-10-10 09:10:28 -07:00
swap.c PM: hibernate: swap: don't use /** for non-kernel-doc comments 2023-01-20 14:49:48 +01:00
user.c freezer: Have {,un}lock_system_sleep() save/restore flags 2022-09-07 21:53:48 +02:00
wakelock.c PM: wakeup: simplify the output logic of pm_show_wakelocks() 2022-01-25 18:27:02 +01:00