genirq: Implement handle_irq_event() (4912609f) · Commits · 戴 / test

kernel/irq/handle.c

+39 −8

Original line number	Diff line number	Diff line
		@@ -51,14 +51,7 @@ static void warn_no_thread(unsigned int irq, struct irqaction *action)
		"but no thread function available.", irq, action->name);
		}

		/**
		* handle_IRQ_event - irq action chain handler
		* @irq: the interrupt number
		* @action: the interrupt action chain for this irq
		*
		* Handles the action chain of an irq event
		*/
		irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
		static irqreturn_t __handle_irq_event(unsigned int irq, struct irqaction *action)
		{
		irqreturn_t ret, retval = IRQ_NONE;
		unsigned int status = 0;
		@@ -120,3 +113,41 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)

		return retval;
		}

		irqreturn_t
		handle_irq_event_percpu(struct irq_desc desc, struct irqaction action)
		{
		irqreturn_t ret = __handle_irq_event(desc->irq_data.irq, action);

		if (!noirqdebug)
		note_interrupt(desc->irq_data.irq, desc, ret);
		return ret;
		}

		irqreturn_t handle_irq_event(struct irq_desc *desc)
		{
		struct irqaction *action = desc->action;
		irqreturn_t ret;

		desc->status &= ~IRQ_PENDING;
		desc->status \|= IRQ_INPROGRESS;
		raw_spin_unlock(&desc->lock);

		ret = handle_irq_event_percpu(desc, action);

		raw_spin_lock(&desc->lock);
		desc->status &= ~IRQ_INPROGRESS;
		return ret;
		}

		/**
		* handle_IRQ_event - irq action chain handler
		* @irq: the interrupt number
		* @action: the interrupt action chain for this irq
		*
		* Handles the action chain of an irq event
		*/
		irqreturn_t handle_IRQ_event(unsigned int irq, struct irqaction *action)
		{
		return __handle_irq_event(irq, action);
		}

kernel/irq/internals.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -45,6 +45,9 @@ extern void irq_disable(struct irq_desc *desc);

		extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);

		irqreturn_t handle_irq_event_percpu(struct irq_desc desc, struct irqaction action);
		irqreturn_t handle_irq_event(struct irq_desc *desc);

		/* Resending of interrupts :*/
		void check_irq_resend(struct irq_desc *desc, unsigned int irq);
		bool irq_wait_for_poll(struct irq_desc *desc);

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