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Commit 0abefbaa authored by Qais Yousef's avatar Qais Yousef Committed by Thomas Gleixner
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genirq: Add new IPI irqdomain flags 



These flags will be used to identify an IPI domain. We have two flavours of
IPI implementations:

IRQ_DOMAIN_FLAG_IPI_PER_CPU: Each CPU has its own virq and hwirq
IRQ_DOMAIN_FLAG_IPI_SINGLE : A single virq and hwirq for all CPUs

Signed-off-by: default avatarQais Yousef <qais.yousef@imgtec.com>
Cc: <jason@lakedaemon.net>
Cc: <marc.zyngier@arm.com>
Cc: <jiang.liu@linux.intel.com>
Cc: <ralf@linux-mips.org>
Cc: <linux-mips@linux-mips.org>
Cc: <lisa.parratt@imgtec.com>
Cc: Qais Yousef <qsyousef@gmail.com>
Link: http://lkml.kernel.org/r/1449580830-23652-2-git-send-email-qais.yousef@imgtec.com


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 16aba533

include/linux/irqdomain.h

+37 −0
Original line number Diff line number Diff line
@@ -172,6 +172,12 @@ enum { 
	/* Core calls alloc/free recursive through the domain hierarchy. */

	IRQ_DOMAIN_FLAG_AUTO_RECURSIVE	= (1 << 1),



	/* Irq domain is an IPI domain with virq per cpu */

	IRQ_DOMAIN_FLAG_IPI_PER_CPU	= (1 << 2),



	/* Irq domain is an IPI domain with single virq */

	IRQ_DOMAIN_FLAG_IPI_SINGLE	= (1 << 3),



	/*

	 * Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved

	 * for implementation specific purposes and ignored by the
@@ -400,6 +406,22 @@ static inline bool irq_domain_is_hierarchy(struct irq_domain *domain) 
{

	return domain->flags & IRQ_DOMAIN_FLAG_HIERARCHY;

}



static inline bool irq_domain_is_ipi(struct irq_domain *domain)

{

	return domain->flags &

		(IRQ_DOMAIN_FLAG_IPI_PER_CPU | IRQ_DOMAIN_FLAG_IPI_SINGLE);

}



static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain)

{

	return domain->flags & IRQ_DOMAIN_FLAG_IPI_PER_CPU;

}



static inline bool irq_domain_is_ipi_single(struct irq_domain *domain)

{

	return domain->flags & IRQ_DOMAIN_FLAG_IPI_SINGLE;

}

#else	/* CONFIG_IRQ_DOMAIN_HIERARCHY */

static inline void irq_domain_activate_irq(struct irq_data *data) { }

static inline void irq_domain_deactivate_irq(struct irq_data *data) { }
@@ -413,6 +435,21 @@ static inline bool irq_domain_is_hierarchy(struct irq_domain *domain) 
{

	return false;

}



static inline bool irq_domain_is_ipi(struct irq_domain *domain)

{

	return false;

}



static inline bool irq_domain_is_ipi_per_cpu(struct irq_domain *domain)

{

	return false;

}



static inline bool irq_domain_is_ipi_single(struct irq_domain *domain)

{

	return false;

}

#endif	/* CONFIG_IRQ_DOMAIN_HIERARCHY */



#else /* CONFIG_IRQ_DOMAIN */