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    Subject[PATCH v9 21/26] irqchip/gic: Add functions to access irq priorities
    Date
    Add accessors to the GIC distributor/redistributors priority registers.

    Signed-off-by: Julien Thierry <julien.thierry@arm.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Jason Cooper <jason@lakedaemon.net>
    Cc: Marc Zyngier <marc.zyngier@arm.com>
    ---
    drivers/irqchip/irq-gic-common.c | 10 ++++++++++
    drivers/irqchip/irq-gic-common.h | 2 ++
    2 files changed, 12 insertions(+)

    diff --git a/drivers/irqchip/irq-gic-common.c b/drivers/irqchip/irq-gic-common.c
    index 3c93c6f..04eadbc 100644
    --- a/drivers/irqchip/irq-gic-common.c
    +++ b/drivers/irqchip/irq-gic-common.c
    @@ -110,6 +110,16 @@ int gic_configure_irq(unsigned int irq, unsigned int type,
    return ret;
    }

    +void gic_set_irq_prio(unsigned int irq, void __iomem *base, u8 prio)
    +{
    + writeb_relaxed(prio, base + GIC_DIST_PRI + irq);
    +}
    +
    +u8 gic_get_irq_prio(unsigned int irq, void __iomem *base)
    +{
    + return readb_relaxed(base + GIC_DIST_PRI + irq);
    +}
    +
    void gic_dist_config(void __iomem *base, int gic_irqs,
    void (*sync_access)(void))
    {
    diff --git a/drivers/irqchip/irq-gic-common.h b/drivers/irqchip/irq-gic-common.h
    index 97e58fb..f1c6f5a 100644
    --- a/drivers/irqchip/irq-gic-common.h
    +++ b/drivers/irqchip/irq-gic-common.h
    @@ -38,6 +38,8 @@ void gic_enable_quirks(u32 iidr, const struct gic_quirk *quirks,
    void *data);
    void gic_enable_of_quirks(const struct device_node *np,
    const struct gic_quirk *quirks, void *data);
    +void gic_set_irq_prio(unsigned int irq, void __iomem *base, u8 prio);
    +u8 gic_get_irq_prio(unsigned int irq, void __iomem *base);

    void gic_set_kvm_info(const struct gic_kvm_info *info);

    --
    1.9.1
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