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| author | Tzung-Bi Shih <tzungbi@kernel.org> | 2026-06-08 05:15:26 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-06-11 22:38:29 +0300 |
| commit | 3edbf62df6c236ef51e9d733e3f6bd6d70ee59af (patch) | |
| tree | 0e03896935a1e5d3e3a9894d0a8203e58ee37a53 /include/linux | |
| parent | 3da1dbf936d2fb25ef9925550bb276861d803e57 (diff) | |
| download | linux-3edbf62df6c236ef51e9d733e3f6bd6d70ee59af.tar.xz | |
PM: dpm_watchdog: Add sysctl interface for DPM watchdog timeouts
Introduce sysctl knobs to allow configuring DPM watchdog timeouts at
runtime.
Currently, these timeouts are fixed at compile time via
CONFIG_DPM_WATCHDOG_TIMEOUT and CONFIG_DPM_WATCHDOG_WARNING_TIMEOUT.
This limits flexibility if the timeouts need to be adjusted for
different testing scenarios or hardware behaviors without rebuilding
the kernel.
Add the following sysctl files under /proc/sys/kernel/:
- dpm_watchdog_timeout_secs: The total timeout before panic. The
maximum value is capped at CONFIG_DPM_WATCHDOG_TIMEOUT to prevent
unreasonably large timeouts.
- dpm_watchdog_warning_timeout_secs: The warning timeout. The maximum
value is capped at the current dpm_watchdog_timeout_secs.
Both sysctls have a minimum value of 1.
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://patch.msgid.link/20260608021526.1023248-4-tzungbi@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions