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/*
* RTEMS SMP Support for Single Core
*
* COPYRIGHT (c) 1989-2013.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*/
#include <rtems.h>
#include <rtems/bspIo.h>
#include <stdlib.h>
uint32_t Schedsim_Current_cpu;
extern uint32_t Schedsim_Maximum_CPUs_From_Command_Line;
uint32_t _CPU_SMP_Initialize( void )
{
if ( configured_cpu_count < Schedsim_Maximum_CPUs_From_Command_Line ) {
printf(
"ERROR - Maximum cores per confdefs.h is %d\n",
configured_cpu_count
);
exit( 1 );
}
/* return the number of CPUs */
return Schedsim_Maximum_CPUs_From_Command_Line;
}
bool _CPU_SMP_Start_processor( uint32_t cpu_index )
{
return true;
}
void _CPU_SMP_Finalize_initialization( uint32_t cpu_count )
{
}
void _CPU_SMP_Send_interrupt( uint32_t target_processor_index )
{
}
void _CPU_SMP_Processor_event_broadcast( void )
{
Per_CPU_Control *cpu = _Per_CPU_Get();
uint32_t cpu_count = _SMP_Get_processor_count();
uint32_t cpu_index;
Per_CPU_State state = cpu->state;
if (state == PER_CPU_STATE_REQUEST_START_MULTITASKING) {
for ( cpu_index = 0 ; cpu_index < cpu_count ; ++cpu_index ) {
cpu = _Per_CPU_Get_by_index( cpu_index );
state = cpu->state;
if (state == PER_CPU_STATE_INITIAL )
cpu->state = PER_CPU_STATE_READY_TO_START_MULTITASKING;
}
}
}
void _CPU_SMP_Processor_event_receive( void )
{
}
uint32_t _CPU_SMP_Get_current_processor( void )
{
return Schedsim_Current_cpu;
}
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