Commit 08395c7f authored Oct 13, 2017 by Julien Thierry Committed by Will Deacon Oct 24, 2017

irqdesc: Add function to identify percpu_devid irqs



irq_is_percpu indicates whether an irq should only target a single cpu.
PERCPU_DEVID flag indicates that an irq can be configured differently on
each cpu it can target.

Provide a function to check whether an irq is PERCPU_DEVID.

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Julien Thierry <julien.thierry@arm.com>

parent 5bdecb79

include/linux/irqdesc.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -244,6 +244,14 @@ static inline int irq_is_percpu(unsigned int irq)
		return desc->status_use_accessors & IRQ_PER_CPU;
		}

		static inline int irq_is_percpu_devid(unsigned int irq)
		{
		struct irq_desc *desc;

		desc = irq_to_desc(irq);
		return desc->status_use_accessors & IRQ_PER_CPU_DEVID;
		}

		static inline void
		irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class)
		{

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