include/nuttx/arch.h: Add prototype for an architecture-specific up_trigger_irq function

arch/Kconfig

@@ -149,6 +149,11 @@ config ARCH_VECNOTIRQ
 	bool
 	default n
 
+config ARCH_HAVE_TRIGGER_HOOK
+	bool
+	default n
+	depends on !ARCH_NOINTC
+
 config ARCH_DMA
 	bool
 	default n

include/nuttx/arch.h

@@ -1389,6 +1389,18 @@ void up_enable_irq(int irq);
 void up_disable_irq(int irq);
 #endif
 
+/****************************************************************************
+ * Name: up_trigger_irq
+ *
+ * Description:
+ *   Trigger an IRQ by software. May not be supported by all architectures.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_HAVE_TRIGGER_HOOK
+void up_trigger_irq(int irq);
+#endif
+
 /****************************************************************************
  * Name: up_prioritize_irq
  *