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freertos(IDF): Restore vanilla task selection algorithm for single core

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This commit restores the vanilla behavior for taskSELECT_HIGHEST_PRIORITY_TASK
when configNUM_CORES == 1 && configUSE_PORT_OPTIMISED_TASK_SELECTION == 0. This
results in the SMP selection algorithm (taskSelectHighestPriorityTaskSMP) to
only be run when configNUM_CORES > 1.
This commit is contained in:
Darian Leung
2022-11-23 16:48:34 +08:00
parent 2537dd8eca
commit dff138f883
1 changed files with 96 additions and 98 deletions
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16
components/freertos/FreeRTOS-Kernel/tasks.c
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@@ -145,9 +145,9 @@
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#ifdef ESP_PLATFORM #if ( configNUM_CORES > 1 )
#define taskSELECT_HIGHEST_PRIORITY_TASK() taskSelectHighestPriorityTaskSMP() #define taskSELECT_HIGHEST_PRIORITY_TASK() taskSelectHighestPriorityTaskSMP()
#else //ESP_PLATFORM #else /* configNUM_CORES > 1 */
#define taskSELECT_HIGHEST_PRIORITY_TASK() \ #define taskSELECT_HIGHEST_PRIORITY_TASK() \
{ \ { \
UBaseType_t uxTopPriority = uxTopReadyPriority; \ UBaseType_t uxTopPriority = uxTopReadyPriority; \
@@ -161,10 +161,10 @@
\ \
/* listGET_OWNER_OF_NEXT_ENTRY indexes through the list, so the tasks of \ /* listGET_OWNER_OF_NEXT_ENTRY indexes through the list, so the tasks of \
* the same priority get an equal share of the processor time. */ \ * the same priority get an equal share of the processor time. */ \
listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB[ xPortGetCoreID() ], &( pxReadyTasksLists[ uxTopPriority ] ) ); \ listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB[ 0 ], &( pxReadyTasksLists[ uxTopPriority ] ) ); \
uxTopReadyPriority = uxTopPriority; \ uxTopReadyPriority = uxTopPriority; \
} /* taskSELECT_HIGHEST_PRIORITY_TASK */ } /* taskSELECT_HIGHEST_PRIORITY_TASK */
#endif //ESP_PLATFORM #endif /* configNUM_CORES > 1 */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@@ -192,7 +192,7 @@
/* Find the highest priority list that contains ready tasks. */ \ /* Find the highest priority list that contains ready tasks. */ \
portGET_HIGHEST_PRIORITY( uxTopPriority, uxTopReadyPriority ); \ portGET_HIGHEST_PRIORITY( uxTopPriority, uxTopReadyPriority ); \
configASSERT( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ uxTopPriority ] ) ) > 0 ); \ configASSERT( listCURRENT_LIST_LENGTH( &( pxReadyTasksLists[ uxTopPriority ] ) ) > 0 ); \
listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB[ xPortGetCoreID() ], &( pxReadyTasksLists[ uxTopPriority ] ) ); \ listGET_OWNER_OF_NEXT_ENTRY( pxCurrentTCB[ 0 ], &( pxReadyTasksLists[ uxTopPriority ] ) ); \
} /* taskSELECT_HIGHEST_PRIORITY_TASK() */ } /* taskSELECT_HIGHEST_PRIORITY_TASK() */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
@@ -3509,8 +3509,7 @@ BaseType_t xTaskIncrementTick( void )
#endif /* configUSE_APPLICATION_TASK_TAG */ #endif /* configUSE_APPLICATION_TASK_TAG */
/*-----------------------------------------------------------*/ /*-----------------------------------------------------------*/
#ifdef ESP_PLATFORM #if ( configNUM_CORES > 1 )
#if ( configUSE_PORT_OPTIMISED_TASK_SELECTION == 0 )
static void taskSelectHighestPriorityTaskSMP( void ) static void taskSelectHighestPriorityTaskSMP( void )
{ {
/* This function is called from a critical section. So some optimizations are made */ /* This function is called from a critical section. So some optimizations are made */
@@ -3596,8 +3595,7 @@ get_next_task:
assert( xTaskScheduled == pdTRUE ); /* At this point, a task MUST have been scheduled */ assert( xTaskScheduled == pdTRUE ); /* At this point, a task MUST have been scheduled */
} }
#endif /* configUSE_PORT_OPTIMISED_TASK_SELECTION */ #endif /* configNUM_CORES > 1 */
#endif //ESP_PLATFORM
void vTaskSwitchContext( void ) void vTaskSwitchContext( void )
{ {