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score: _SMP_Inter_processor_interrupt_handler()

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Inline _SMP_Inter_processor_interrupt_handler() to avoid function call
overhead.  Remove debug output.
This commit is contained in:
Sebastian Huber
2014-02-18 13:36:35 +01:00
parent c4ff0271e7
commit 8a65a96007
2 changed files with 23 additions and 42 deletions
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24
cpukit/score/include/rtems/score/smpimpl.h
View File

@@ -19,6 +19,8 @@
#define _RTEMS_SCORE_SMPIMPL_H
#include <rtems/score/smp.h>
#include <rtems/score/percpu.h>
#include <rtems/fatal.h>
#ifdef __cplusplus
extern "C" {
@@ -92,7 +94,27 @@ void _SMP_Start_multitasking_on_secondary_processor( void )
/**
* @brief Interrupt handler for inter-processor interrupts.
*/
void _SMP_Inter_processor_interrupt_handler( void );
static inline void _SMP_Inter_processor_interrupt_handler( void )
{
Per_CPU_Control *self_cpu = _Per_CPU_Get();
if ( self_cpu->message != 0 ) {
uint32_t message;
ISR_Level level;
_Per_CPU_ISR_disable_and_acquire( self_cpu, level );
message = self_cpu->message;
self_cpu->message = 0;
_Per_CPU_Release_and_ISR_enable( self_cpu, level );
if ( ( message & SMP_MESSAGE_SHUTDOWN ) != 0 ) {
_Per_CPU_Change_state( self_cpu, PER_CPU_STATE_SHUTDOWN );
rtems_fatal( RTEMS_FATAL_SOURCE_SMP, SMP_FATAL_SHUTDOWN );
/* does not continue past here */
}
}
}
/**
* @brief Sends a SMP message to a processor.

41
cpukit/score/src/smp.c
View File

@@ -23,7 +23,6 @@
#include <rtems/score/threaddispatch.h>
#include <rtems/score/threadimpl.h>
#include <rtems/config.h>
#include <rtems/fatal.h>
#if defined(RTEMS_DEBUG)
#include <rtems/bspIo.h>
@@ -63,46 +62,6 @@ void _SMP_Start_multitasking_on_secondary_processor( void )
_Thread_Start_multitasking();
}
void _SMP_Inter_processor_interrupt_handler( void )
{
Per_CPU_Control *self_cpu = _Per_CPU_Get();
if ( self_cpu->message != 0 ) {
uint32_t message;
ISR_Level level;
_Per_CPU_ISR_disable_and_acquire( self_cpu, level );
message = self_cpu->message;
self_cpu->message = 0;
_Per_CPU_Release_and_ISR_enable( self_cpu, level );
#if defined(RTEMS_DEBUG)
{
void *sp = __builtin_frame_address(0);
if ( !(message & SMP_MESSAGE_SHUTDOWN) ) {
printk(
"ISR on CPU %d -- (0x%02x) (0x%p)\n",
_Per_CPU_Get_index( self_cpu ),
message,
sp
);
if ( message & SMP_MESSAGE_SHUTDOWN )
printk( "shutdown\n" );
}
printk( "Dispatch level %d\n", _Thread_Dispatch_get_disable_level() );
}
#endif
if ( ( message & SMP_MESSAGE_SHUTDOWN ) != 0 ) {
_Per_CPU_Change_state( self_cpu, PER_CPU_STATE_SHUTDOWN );
rtems_fatal( RTEMS_FATAL_SOURCE_SMP, SMP_FATAL_SHUTDOWN );
/* does not continue past here */
}
}
}
void _SMP_Send_message( uint32_t cpu, uint32_t message )
{
Per_CPU_Control *per_cpu = _Per_CPU_Get_by_index( cpu );