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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-11-11 14:37:51 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2016-11-18 07:30:34 +0100 |
| commit | d5e073cde70211b2471e4366be397370e9f6ce48 (patch) | |
| tree | 7ee1e3cad3dd7dfbb52475af7bacc61b216dc0e5 /cpukit/score/src/threaddispatch.c | |
| parent | score: Add Per_CPU_Control::Interrupt_frame (diff) | |
| download | rtems-d5e073cde70211b2471e4366be397370e9f6ce48.tar.bz2 | |
score: Allow interrupts during thread dispatch
Use a processor-specific interrupt frame during context switches in case
the executing thread is longer executes on the processor and the heir
thread is about to start execution. During this period we must not use
a thread stack for interrupt processing.
Update #2809.
Diffstat (limited to 'cpukit/score/src/threaddispatch.c')
| -rw-r--r-- | cpukit/score/src/threaddispatch.c | 17 |
1 files changed, 1 insertions, 16 deletions
diff --git a/cpukit/score/src/threaddispatch.c b/cpukit/score/src/threaddispatch.c index c96299cb59..f2c24905dc 100644 --- a/cpukit/score/src/threaddispatch.c +++ b/cpukit/score/src/threaddispatch.c @@ -174,14 +174,7 @@ void _Thread_Do_dispatch( Per_CPU_Control *cpu_self, ISR_Level level ) if ( heir->budget_algorithm == THREAD_CPU_BUDGET_ALGORITHM_RESET_TIMESLICE ) heir->cpu_time_budget = rtems_configuration_get_ticks_per_timeslice(); - /* - * On SMP the complete context switch must be atomic with respect to one - * processor. See also _Thread_Handler() since _Context_switch() may branch - * to this function. - */ -#if !defined( RTEMS_SMP ) _ISR_Local_enable( level ); -#endif _User_extensions_Thread_switch( executing, heir ); _Thread_Save_fp( executing ); @@ -195,16 +188,8 @@ void _Thread_Do_dispatch( Per_CPU_Control *cpu_self, ISR_Level level ) */ cpu_self = _Per_CPU_Get(); -#if !defined( RTEMS_SMP ) _ISR_Local_disable( level ); -#endif - } while ( -#if defined( RTEMS_SMP ) - false -#else - cpu_self->dispatch_necessary -#endif - ); + } while ( cpu_self->dispatch_necessary ); post_switch: _Assert( cpu_self->thread_dispatch_disable_level == 1 ); |