feat(freertos-smp): Added xTaskHigherPriorityTasksReady for event groups

Author: sudeep-mohanty

event_groups.c

@@ -899,6 +899,13 @@
                 /* Return true as the task was preempted */
                 xReturn = pdTRUE;
             }
+            else if( xTaskHigherPriorityTasksReady() == pdTRUE )
+            {
+                /* Higher priority tasks are ready to run */
+                taskYIELD_WITHIN_API();
+
+                xReturn = pdTRUE;
+            }
             else
             {
                 /* Return false as the task was not preempted */

include/task.h

@@ -3883,6 +3883,16 @@ void vTaskInternalSetTimeOutState( TimeOut_t * const pxTimeOut ) PRIVILEGED_FUNC
     BaseType_t xTaskUnlockCanYield( void );
 #endif /* #if ( ( portUSING_GRANULAR_LOCKS == 1 ) && ( configNUMBER_OF_CORES > 1 ) ) */
 
+/*
+ * Returns pdTRUE if there are higher priority tasks ready to run
+ * on the current core than the current task. This is intended for
+ * use by kernel objects (like event groups) that need to make
+ * yield decisions when unlocking.
+ */
+#if ( ( portUSING_GRANULAR_LOCKS == 1 ) && ( configNUMBER_OF_CORES > 1 ) )
+    BaseType_t xTaskHigherPriorityTasksReady( void );
+#endif /* #if ( ( portUSING_GRANULAR_LOCKS == 1 ) && ( configNUMBER_OF_CORES > 1 ) ) */
+
 #if ( portUSING_MPU_WRAPPERS == 1 )
 
 /*

tasks.c

@@ -8048,6 +8048,36 @@ static void prvResetNextTaskUnblockTime( void )
 #endif /* #if ( ( portUSING_GRANULAR_LOCKS == 1 ) && ( configNUMBER_OF_CORES > 1 ) ) */
 /*-----------------------------------------------------------*/
 
+#if ( ( portUSING_GRANULAR_LOCKS == 1 ) && ( configNUMBER_OF_CORES > 1 ) )
+
+    BaseType_t xTaskHigherPriorityTasksReady( void )
+    {
+        BaseType_t xReturn = pdFALSE;
+        BaseType_t xCoreID = portGET_CORE_ID();
+
+        /* Only check if scheduler is running and not suspended */
+        if( ( xSchedulerRunning != pdFALSE ) && ( uxSchedulerSuspended == pdFALSE ) )
+        {
+            #if ( configUSE_TASK_PREEMPTION_DISABLE == 1 )
+                if( pxCurrentTCBs[ xCoreID ]->uxPreemptionDisable == 0U )
+            #endif
+            {
+                UBaseType_t uxCurrentPriority = pxCurrentTCBs[ xCoreID ]->uxPriority;
+
+                /* Simple check: is top ready priority higher than current? */
+                if( uxTopReadyPriority > uxCurrentPriority )
+                {
+                    xReturn = pdTRUE;
+                }
+            }
+        }
+
+        return xReturn;
+    }
+
+#endif /* #if ( ( portUSING_GRANULAR_LOCKS == 1 ) && ( configNUMBER_OF_CORES > 1 ) ) */
+/*-----------------------------------------------------------*/
+
 #if ( configUSE_STATS_FORMATTING_FUNCTIONS > 0 )
 
     static char * prvWriteNameToBuffer( char * pcBuffer,