Merge branch 'upstream' of git://lost.foo-projects.org/~ahkok/git/netdev-2.6 into...

[pandora-kernel.git] / arch / mips / ddb5xxx / ddb5477 / irq.c

diff --git a/arch/mips/ddb5xxx/ddb5477/irq.c b/arch/mips/ddb5xxx/ddb5477/irq.c
index 9ffe1a9..22fb94b 100644 (file)
--- a/arch/mips/ddb5xxx/ddb5477/irq.c
+++ b/arch/mips/ddb5xxx/ddb5477/irq.c
@@ -10,7 +10,6 @@
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
  */
-#include <linux/config.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -75,7 +74,6 @@ set_pci_int_attr(u32 pci, u32 intn, u32 active, u32 trigger)
 
 extern void vrc5477_irq_init(u32 base);
 extern void mips_cpu_irq_init(u32 base);
-extern asmlinkage void ddb5477_handle_int(void);
 extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
 static struct irqaction irq_cascade = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL };
 
@@ -135,9 +133,6 @@ void __init arch_init_irq(void)
        /* setup cascade interrupts */
        setup_irq(VRC5477_IRQ_BASE + VRC5477_I8259_CASCADE, &irq_cascade);
        setup_irq(CPU_IRQ_BASE + CPU_VRC5477_CASCADE, &irq_cascade);
-
-       /* hook up the first-level interrupt handler */
-       set_except_vector(0, ddb5477_handle_int);
 }
 
 u8 i8259_interrupt_ack(void)
@@ -159,7 +154,7 @@ u8 i8259_interrupt_ack(void)
  * the first level int-handler will jump here if it is a vrc5477 irq
  */
 #define        NUM_5477_IRQS   32
-asmlinkage void
+static void
 vrc5477_irq_dispatch(struct pt_regs *regs)
 {
        u32 intStatus;
@@ -197,3 +192,21 @@ vrc5477_irq_dispatch(struct pt_regs *regs)
                }
        }
 }
+
+#define VR5477INTS (STATUSF_IP2|STATUSF_IP3|STATUSF_IP4|STATUSF_IP5|STATUSF_IP6)
+
+asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
+{
+       unsigned int pending = read_c0_cause() & read_c0_status();
+
+       if (pending & STATUSF_IP7)
+               do_IRQ(CPU_IRQ_BASE + 7, regs);
+       else if (pending & VR5477INTS)
+               vrc5477_irq_dispatch(regs);
+       else if (pending & STATUSF_IP0)
+               do_IRQ(CPU_IRQ_BASE, regs);
+       else if (pending & STATUSF_IP1)
+               do_IRQ(CPU_IRQ_BASE + 1, regs);
+       else
+               spurious_interrupt(regs);
+}