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Add affinity to IDLE tasks in SMP systems #1413

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Add affinity to IDLE tasks in SMP systems #1413

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54 changes: 40 additions & 14 deletions tasks.c
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Original file line number Diff line number Diff line change
Expand Up @@ -3629,6 +3629,14 @@ static BaseType_t prvCreateIdleTasks( void )
#if ( configNUMBER_OF_CORES == 1 )
{
vApplicationGetIdleTaskMemory( &pxIdleTaskTCBBuffer, &pxIdleTaskStackBuffer, &uxIdleTaskStackSize );

xIdleTaskHandles[ xCoreID ] = xTaskCreateStatic( pxIdleTaskFunction,
cIdleName,
uxIdleTaskStackSize,
( void * ) NULL,
portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
pxIdleTaskStackBuffer,
pxIdleTaskTCBBuffer );
}
#else
{
Expand All @@ -3640,15 +3648,18 @@ static BaseType_t prvCreateIdleTasks( void )
{
vApplicationGetPassiveIdleTaskMemory( &pxIdleTaskTCBBuffer, &pxIdleTaskStackBuffer, &uxIdleTaskStackSize, ( BaseType_t ) ( xCoreID - 1 ) );
}

xIdleTaskHandles[ xCoreID ] = xTaskCreateStaticAffinitySet( pxIdleTaskFunction,
cIdleName,
uxIdleTaskStackSize,
( void * ) NULL,
portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
pxIdleTaskStackBuffer,
pxIdleTaskTCBBuffer,
1u << xCoreID );
}
#endif /* if ( configNUMBER_OF_CORES == 1 ) */
xIdleTaskHandles[ xCoreID ] = xTaskCreateStatic( pxIdleTaskFunction,
cIdleName,
uxIdleTaskStackSize,
( void * ) NULL,
portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
pxIdleTaskStackBuffer,
pxIdleTaskTCBBuffer );


if( xIdleTaskHandles[ xCoreID ] != NULL )
{
Expand All @@ -3661,13 +3672,28 @@ static BaseType_t prvCreateIdleTasks( void )
}
#else /* if ( configSUPPORT_STATIC_ALLOCATION == 1 ) */
{
/* The Idle task is being created using dynamically allocated RAM. */
xReturn = xTaskCreate( pxIdleTaskFunction,
cIdleName,
configMINIMAL_STACK_SIZE,
( void * ) NULL,
portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
&xIdleTaskHandles[ xCoreID ] );
#if ( configNUMBER_OF_CORES == 1 )
{
/* The Idle task is being created using dynamically allocated RAM. */
xReturn = xTaskCreate( pxIdleTaskFunction,
cIdleName,
configMINIMAL_STACK_SIZE,
( void * ) NULL,
portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
&xIdleTaskHandles[ xCoreID ] );
}
#else
{
/* The Idle task is being created using dynamically allocated RAM. */
xReturn = xTaskCreateAffinitySet( pxIdleTaskFunction,
cIdleName,
configMINIMAL_STACK_SIZE,
( void * ) NULL,
portPRIVILEGE_BIT, /* In effect ( tskIDLE_PRIORITY | portPRIVILEGE_BIT ), but tskIDLE_PRIORITY is zero. */
1u << xCoreID,
&xIdleTaskHandles[ xCoreID ] );
}
#endif /* if ( configNUMBER_OF_CORES == 1 ) */
}
#endif /* configSUPPORT_STATIC_ALLOCATION */

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