[PATCH v2 08/16] irqchip: mips-gic: Implement generic irq_ack/irq_eoi callbacks

From: Andrew Bresticker
Date: Fri Sep 05 2014 - 13:33:04 EST


Implement a default gic_irq_ack() and gic_finish_irq(). These are
suitable for handling IPIs on Malta and the upcoming Danube board.

Signed-off-by: Andrew Bresticker <abrestic@xxxxxxxxxxxx>
---
No changes from v1.
---
drivers/irqchip/irq-mips-gic.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index f29bb4e..0549768 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -239,6 +239,20 @@ static void gic_unmask_irq(struct irq_data *d)
GIC_SET_INTR_MASK(d->irq - gic_irq_base);
}

+void __weak gic_irq_ack(struct irq_data *d)
+{
+ GIC_CLR_INTR_MASK(d->irq - gic_irq_base);
+
+ /* Clear edge detector */
+ if (gic_irq_flags[d->irq - gic_irq_base] & GIC_TRIG_EDGE)
+ GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), d->irq - gic_irq_base);
+}
+
+void __weak gic_finish_irq(struct irq_data *d)
+{
+ GIC_SET_INTR_MASK(d->irq - gic_irq_base);
+}
+
static int gic_set_type(struct irq_data *d, unsigned int type)
{
unsigned int irq = d->irq - gic_irq_base;
--
2.1.0.rc2.206.gedb03e5

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