diff options
Diffstat (limited to 'cpukit/score/include/rtems/score/percpu.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/percpu.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/cpukit/score/include/rtems/score/percpu.h b/cpukit/score/include/rtems/score/percpu.h index 22017889b3..95c93ddf3a 100644 --- a/cpukit/score/include/rtems/score/percpu.h +++ b/cpukit/score/include/rtems/score/percpu.h @@ -333,8 +333,17 @@ typedef struct Per_CPU_Control { */ volatile bool dispatch_necessary; - /** This is the time of the last context switch on this CPU. */ - Timestamp_Control time_of_last_context_switch; + /** + * @brief The CPU usage timestamp contains the time point of the last heir + * thread change or last CPU usage update of the executing thread of this + * processor. + * + * Protected by the scheduler lock. + * + * @see _Scheduler_Update_heir(), _Thread_Dispatch_update_heir() and + * _Thread_Get_CPU_time_used(). + */ + Timestamp_Control cpu_usage_timestamp; /** * @brief Watchdog state for this processor. @@ -681,8 +690,6 @@ bool _Per_CPU_State_wait_for_non_initial_state( _Per_CPU_Get()->interrupt_stack_high #define _Thread_Dispatch_necessary \ _Per_CPU_Get()->dispatch_necessary -#define _Thread_Time_of_last_context_switch \ - _Per_CPU_Get()->time_of_last_context_switch /** * @brief Returns the thread control block of the executing thread. |