MIPS: Make GIC code platform independent.

The GIC interrupt code is used by multiple platforms and the
current code was half Malta dependent code. These changes
abstract away the platform specific differences.

Signed-off-by: Steven J. Hill <sjhill@mips.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index 7b13a4caeea4..5222a7cc41e4 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -747,3 +747,37 @@ int malta_be_handler(struct pt_regs *regs, int is_fixup)
 
         return retval;
 }
+
+void gic_enable_interrupt(int irq_vec)
+{
+        GIC_SET_INTR_MASK(irq_vec);
+}
+
+void gic_disable_interrupt(int irq_vec)
+{
+        GIC_CLR_INTR_MASK(irq_vec);
+}
+
+void gic_irq_ack(struct irq_data *d)
+{
+        int irq = (d->irq - gic_irq_base);
+
+        GIC_CLR_INTR_MASK(irq);
+
+        if (gic_irq_flags[irq] & GIC_TRIG_EDGE)
+                GICWRITE(GIC_REG(SHARED, GIC_SH_WEDGE), irq);
+}
+
+void gic_finish_irq(struct irq_data *d)
+{
+        /* Enable interrupts. */
+        GIC_SET_INTR_MASK(d->irq - gic_irq_base);
+}
+
+void __init gic_platform_init(int irqs, struct irq_chip *irq_controller)
+{
+        int i;
+
+        for (i = gic_irq_base; i < (gic_irq_base + irqs); i++)
+                irq_set_chip(i, irq_controller);
+}