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    Subject[patch V3 06/22] genirq/irqdomain: Provide IRQ_DOMAIN_FLAG_MSI_DEVICE
    Date
    Similar to marking parent MSI domains it's required to identify per device
    domains. Add flag and helpers.

    Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
    ---
    include/linux/irqdomain.h | 13 +++++++++++++
    1 file changed, 13 insertions(+)

    --- a/include/linux/irqdomain.h
    +++ b/include/linux/irqdomain.h
    @@ -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_par
    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)
    @@ -609,6 +617,11 @@ static inline bool irq_domain_is_msi_par
    {
    return false;
    }
    +
    +static inline bool irq_domain_is_msi_device(struct irq_domain *domain)
    +{
    + return false;
    +}

    #endif /* CONFIG_IRQ_DOMAIN_HIERARCHY */

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