Commit e71c5d0b authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq/irqdomain: Provide IRQ_DOMAIN_FLAG_MSI_DEVICE 



Similar to marking parent MSI domains it's required to identify per device
domains. Add flag and helpers.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Acked-by: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20221124230313.747627287@linutronix.de
parent b749e6d3

include/linux/irqdomain.h

+13 −0
Original line number Diff line number Diff line
@@ -192,6 +192,9 @@ enum { 
	/* Irq domain is a MSI parent domain */

	IRQ_DOMAIN_FLAG_MSI_PARENT	= (1 << 8),



	/* Irq domain is a MSI device domain */

	IRQ_DOMAIN_FLAG_MSI_DEVICE	= (1 << 9),



	/*

	 * Flags starting from IRQ_DOMAIN_FLAG_NONCORE are reserved

	 * for implementation specific purposes and ignored by the
@@ -559,6 +562,11 @@ static inline bool irq_domain_is_msi_parent(struct irq_domain *domain) 
	return domain->flags & IRQ_DOMAIN_FLAG_MSI_PARENT;

}



static inline bool irq_domain_is_msi_device(struct irq_domain *domain)

{

	return domain->flags & IRQ_DOMAIN_FLAG_MSI_DEVICE;

}



#else	/* CONFIG_IRQ_DOMAIN_HIERARCHY */

static inline int irq_domain_alloc_irqs(struct irq_domain *domain,

			unsigned int nr_irqs, int node, void *arg)
@@ -610,6 +618,11 @@ static inline bool irq_domain_is_msi_parent(struct irq_domain *domain) 
	return false;

}



static inline bool irq_domain_is_msi_device(struct irq_domain *domain)

{

	return false;

}



#endif	/* CONFIG_IRQ_DOMAIN_HIERARCHY */



#else /* CONFIG_IRQ_DOMAIN */