diff options
Diffstat (limited to 'include/linux/reboot.h')
| -rw-r--r-- | include/linux/reboot.h | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/include/linux/reboot.h b/include/linux/reboot.h index 2b6bb593be5b..aa08c3bbbf59 100644 --- a/include/linux/reboot.h +++ b/include/linux/reboot.h @@ -129,11 +129,14 @@ enum sys_off_mode { * @cb_data: User's callback data. * @cmd: Command string. Currently used only by the sys-off restart mode, * NULL otherwise. + * @dev: Device of the sys-off handler. Only if known (devm_register_*), + * NULL otherwise. */ struct sys_off_data { int mode; void *cb_data; const char *cmd; + struct device *dev; }; struct sys_off_handler * @@ -174,7 +177,39 @@ void ctrl_alt_del(void); extern void orderly_poweroff(bool force); extern void orderly_reboot(void); -void hw_protection_shutdown(const char *reason, int ms_until_forced); + +/** + * enum hw_protection_action - Hardware protection action + * + * @HWPROT_ACT_DEFAULT: + * The default action should be taken. This is HWPROT_ACT_SHUTDOWN + * by default, but can be overridden. + * @HWPROT_ACT_SHUTDOWN: + * The system should be shut down (powered off) for HW protection. + * @HWPROT_ACT_REBOOT: + * The system should be rebooted for HW protection. + */ +enum hw_protection_action { HWPROT_ACT_DEFAULT, HWPROT_ACT_SHUTDOWN, HWPROT_ACT_REBOOT }; + +void __hw_protection_trigger(const char *reason, int ms_until_forced, + enum hw_protection_action action); + +/** + * hw_protection_trigger - Trigger default emergency system hardware protection action + * + * @reason: Reason of emergency shutdown or reboot to be printed. + * @ms_until_forced: Time to wait for orderly shutdown or reboot before + * triggering it. Negative value disables the forced + * shutdown or reboot. + * + * Initiate an emergency system shutdown or reboot in order to protect + * hardware from further damage. The exact action taken is controllable at + * runtime and defaults to shutdown. + */ +static inline void hw_protection_trigger(const char *reason, int ms_until_forced) +{ + __hw_protection_trigger(reason, ms_until_forced, HWPROT_ACT_DEFAULT); +} /* * Emergency restart, callable from an interrupt handler. |