void Isr_handler_inner( void )
{
/*enable_tracing();*/
Clear_tm27_intr();
switch ( Interrupt_nest ) {
case 0:
Interrupt_enter_time = end_time;
break;
case 1:
Interrupt_enter_time = end_time;
Interrupt_nest = 2;
Interrupt_occurred = 0;
Lower_tm27_intr();
benchmark_timer_initialize();
Cause_tm27_intr();
/* goes to a nested copy of Isr_handler */
#if (MUST_WAIT_FOR_INTERRUPT == 1)
while ( Interrupt_occurred == 0 );
#endif
Interrupt_return_nested_time = benchmark_timer_read();
break;
case 2:
Interrupt_enter_nested_time = end_time;
break;
}
benchmark_timer_initialize();
}
rtems_task Task_1(
rtems_task_argument argument
)
{
Install_tm27_vector( Isr_handler ) ;
Interrupt_nest = 0;
/* Benchmark code */
benchmark_timer_initialize();
/* goes to Isr_handler */
Cause_tm27_intr();
put_time(
"Rhealstone: Interrupt Latency",
Interrupt_enter_time,
1, /* Only Rhealstone that isn't an average */
timer_overhead,
0
);
TEST_END();
rtems_test_exit( 0 );
}
rtems_task Task_1(
rtems_task_argument argument
)
{
Install_tm27_vector( Isr_handler ) ;
Interrupt_nest = 0;
_Thread_Dispatch_set_disable_level( 0 );
/* Benchmark code */
benchmark_timer_initialize();
/* goes to Isr_handler */
Cause_tm27_intr();
put_time(
"Rhealstone: Interrupt Latency",
Interrupt_enter_time,
1, /* Only Rhealstone that isn't an average */
timer_overhead,
0
);
puts( "*** END OF RHILATENCY ***" );
rtems_test_exit( 0 );
}
rtems_task Task_1(
rtems_task_argument argument
)
{
Scheduler_priority_Context *scheduler_context =
_Scheduler_priority_Get_context( _Scheduler_Get( _Thread_Get_executing() ) );
#if defined(RTEMS_SMP)
rtems_interrupt_level level;
#endif
Install_tm27_vector( Isr_handler );
/*
* No preempt .. no nesting
*/
Interrupt_nest = 0;
Interrupt_occurred = 0;
benchmark_timer_initialize();
Cause_tm27_intr();
/* goes to Isr_handler */
#if (MUST_WAIT_FOR_INTERRUPT == 1)
while ( Interrupt_occurred == 0 );
#endif
Interrupt_return_time = benchmark_timer_read();
put_time(
"rtems interrupt: entry overhead returns to interrupted task",
Interrupt_enter_time,
1,
0,
timer_overhead
);
put_time(
"rtems interrupt: exit overhead returns to interrupted task",
Interrupt_return_time,
1,
0,
timer_overhead
);
/*
* No preempt .. nested
*/
_Thread_Disable_dispatch();
Interrupt_nest = 1;
Interrupt_occurred = 0;
benchmark_timer_initialize();
Cause_tm27_intr();
/* goes to Isr_handler */
#if (MUST_WAIT_FOR_INTERRUPT == 1)
while ( Interrupt_occurred == 0 );
#endif
Interrupt_return_time = benchmark_timer_read();
_Thread_Unnest_dispatch();
put_time(
"rtems interrupt: entry overhead returns to nested interrupt",
Interrupt_enter_nested_time,
1,
0,
0
);
put_time(
"rtems interrupt: exit overhead returns to nested interrupt",
Interrupt_return_nested_time,
1,
0,
0
);
/*
* Does a preempt .. not nested
*/
#if defined(RTEMS_SMP)
_ISR_Disable_without_giant(level);
#endif
_Thread_Executing =
(Thread_Control *) _Chain_First(&scheduler_context->Ready[LOW_PRIORITY]);
_Thread_Dispatch_necessary = 1;
#if defined(RTEMS_SMP)
_ISR_Enable_without_giant(level);
#endif
Interrupt_occurred = 0;
benchmark_timer_initialize();
Cause_tm27_intr();
/*
* goes to Isr_handler and then returns
*/
TEST_END();
rtems_test_exit( 0 );
}
rtems_task Task_1(
rtems_task_argument argument
)
{
Chain_Control *ready_queues;
Install_tm27_vector( Isr_handler );
/*
* No preempt .. no nesting
*/
Interrupt_nest = 0;
_Thread_Dispatch_set_disable_level( 0 );
Interrupt_occurred = 0;
benchmark_timer_initialize();
Cause_tm27_intr();
/* goes to Isr_handler */
#if (MUST_WAIT_FOR_INTERRUPT == 1)
while ( Interrupt_occurred == 0 );
#endif
Interrupt_return_time = benchmark_timer_read();
put_time(
"interrupt entry overhead: returns to interrupted task",
Interrupt_enter_time,
1,
0,
timer_overhead
);
put_time(
"interrupt exit overhead: returns to interrupted task",
Interrupt_return_time,
1,
0,
timer_overhead
);
/*
* No preempt .. nested
*/
_Thread_Dispatch_set_disable_level( 1 );
Interrupt_nest = 1;
Interrupt_occurred = 0;
benchmark_timer_initialize();
Cause_tm27_intr();
/* goes to Isr_handler */
#if (MUST_WAIT_FOR_INTERRUPT == 1)
while ( Interrupt_occurred == 0 );
#endif
Interrupt_return_time = benchmark_timer_read();
_Thread_Dispatch_set_disable_level( 0 );
put_time(
"interrupt entry overhead: returns to nested interrupt",
Interrupt_enter_nested_time,
1,
0,
0
);
put_time(
"interrupt exit overhead: returns to nested interrupt",
Interrupt_return_nested_time,
1,
0,
0
);
/*
* Does a preempt .. not nested
*/
_Thread_Dispatch_set_disable_level( 0 );
ready_queues = (Chain_Control *) _Scheduler.information;
_Thread_Executing =
(Thread_Control *) _Chain_First(&ready_queues[LOW_PRIORITY]);
_Thread_Dispatch_necessary = 1;
Interrupt_occurred = 0;
benchmark_timer_initialize();
Cause_tm27_intr();
/*
* goes to Isr_handler and then returns
*/
puts( "*** END OF TEST 27 ***" );
rtems_test_exit( 0 );
}
rtems_task Task_1(
rtems_task_argument argument
)
{
Install_tm27_vector( Isr_handler );
/*
* No preempt .. no nesting
*/
Interrupt_nest = 0;
_Thread_Dispatch_disable_level = 0;
Interrupt_occurred = 0;
Timer_initialize();
Cause_tm27_intr();
/* goes to Isr_handler */
#if (MUST_WAIT_FOR_INTERRUPT == 1)
while ( Interrupt_occurred == 0 );
#endif
Interrupt_return_time = Timer_read();
put_time(
"interrupt entry overhead: returns to interrupted task",
Interrupt_enter_time,
1,
0,
timer_overhead
);
put_time(
"interrupt exit overhead: returns to interrupted task",
Interrupt_return_time,
1,
0,
timer_overhead
);
/*
* No preempt .. nested
*/
_Thread_Dispatch_disable_level = 1;
Interrupt_nest = 1;
Interrupt_occurred = 0;
Timer_initialize();
Cause_tm27_intr();
/* goes to Isr_handler */
#if (MUST_WAIT_FOR_INTERRUPT == 1)
while ( Interrupt_occurred == 0 );
#endif
Interrupt_return_time = Timer_read();
_Thread_Dispatch_disable_level = 0;
put_time(
"interrupt entry overhead: returns to nested interrupt",
Interrupt_enter_nested_time,
1,
0,
0
);
put_time(
"interrupt exit overhead: returns to nested interrupt",
Interrupt_return_nested_time,
1,
0,
0
);
/*
* Does a preempt .. not nested
*/
_Thread_Dispatch_disable_level = 0;
_Thread_Heir = (rtems_tcb *) _Thread_Ready_chain[254].last;
_Context_Switch_necessary = 1;
Interrupt_occurred = 0;
Timer_initialize();
Cause_tm27_intr();
/*
* goes to Isr_handler and then returns
*/
puts( "*** END OF TEST 27 ***" );
rtems_test_exit( 0 );
}
