diff options
| 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/include/rtems/score/userextimpl.h | |
| 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/include/rtems/score/userextimpl.h')
| -rw-r--r-- | cpukit/score/include/rtems/score/userextimpl.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/cpukit/score/include/rtems/score/userextimpl.h b/cpukit/score/include/rtems/score/userextimpl.h index e175c9f0a5..e6692c8749 100644 --- a/cpukit/score/include/rtems/score/userextimpl.h +++ b/cpukit/score/include/rtems/score/userextimpl.h @@ -261,8 +261,16 @@ static inline void _User_extensions_Thread_switch( const Chain_Node *node = _Chain_Immutable_first( chain ); if ( node != tail ) { - Per_CPU_Control *cpu_self = _Per_CPU_Get(); + Per_CPU_Control *cpu_self; +#if defined(RTEMS_SMP) + ISR_Level level; +#endif + + cpu_self = _Per_CPU_Get(); +#if defined(RTEMS_SMP) + _ISR_Local_disable( level ); +#endif _Per_CPU_Acquire( cpu_self ); while ( node != tail ) { @@ -275,6 +283,9 @@ static inline void _User_extensions_Thread_switch( } _Per_CPU_Release( cpu_self ); +#if defined(RTEMS_SMP) + _ISR_Local_enable( level ); +#endif } } |