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Merge branch 'workaround/pin_noaffinity_task_to_core_when_fpu_used' into 'master'

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Workaround: Automatically pin no-cpu-affinity task to a core when FPU is used

FPU status at the moment does not migrate cleanly between cores, so tasks without affinity that happen to migrate across FPUs will run into problems. As a workaround, this modification will automatically pin the task to the current CPU when FPU activity is detected. If anything, it's better than getting all kinds of weird and wonderful FPU corruption issues...

See merge request !124
This commit is contained in:
Jeroen Domburg
2016-09-29 11:16:41 +08:00
parent 2a68a97545 4daa768e3c
commit 0383bc8599
3 changed files with 39 additions and 1 deletions
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14
components/freertos/tasks.c
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@@ -160,7 +160,7 @@ typedef struct tskTaskControlBlock
StackType_t *pxStack; /*< Points to the start of the stack. */
char pcTaskName[ configMAX_TASK_NAME_LEN ];/*< Descriptive name given to the task when created. Facilitates debugging only. */ /*lint !e971 Unqualified char types are allowed for strings and single characters only. */
BaseType_t xCoreID; /*< Core this task is pinned to */
/* If this moves around (other than pcTaskName size changes), please change the define in xtensa_vectors.S as well. */
#if ( portSTACK_GROWTH > 0 )
StackType_t *pxEndOfStack; /*< Points to the end of the stack on architectures where the stack grows up from low memory. */
#endif
@@ -3339,6 +3339,18 @@ TCB_t *pxNewTCB;
}
/*-----------------------------------------------------------*/
BaseType_t xTaskGetAffinity( TaskHandle_t xTask )
{
TCB_t *pxTCB;
UBaseType_t uxReturn;
pxTCB = prvGetTCBFromHandle( xTask );
return pxTCB->xCoreID;
}
/*-----------------------------------------------------------*/
#if ( configUSE_TRACE_FACILITY == 1 )
static UBaseType_t prvListTaskWithinSingleList( TaskStatus_t *pxTaskStatusArray, List_t *pxList, eTaskState eState )