Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / mips / ddb5xxx / ddb5476 / irq.c

diff --git a/arch/mips/ddb5xxx/ddb5476/irq.c b/arch/mips/ddb5xxx/ddb5476/irq.c
index 5388b58..7583a1f 100644 (file)
--- a/arch/mips/ddb5xxx/ddb5476/irq.c
+++ b/arch/mips/ddb5xxx/ddb5476/irq.c
@@ -110,11 +110,36 @@ static void nile4_irq_setup(void)
 static struct irqaction irq_cascade = { no_action, 0, CPU_MASK_NONE, "cascade", NULL, NULL };
 static struct irqaction irq_error = { no_action, 0, CPU_MASK_NONE, "error", NULL, NULL };
 
-extern asmlinkage void ddb5476_handle_int(void);
 extern int setup_irq(unsigned int irq, struct irqaction *irqaction);
 extern void mips_cpu_irq_init(u32 irq_base);
 extern void vrc5476_irq_init(u32 irq_base);
 
+extern void vrc5476_irq_dispatch(struct pt_regs *regs);
+
+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 & STATUSF_IP2)
+               vrc5476_irq_dispatch(regs);
+       else if (pending & STATUSF_IP3)
+               do_IRQ(CPU_IRQ_BASE + 3, regs);
+       else if (pending & STATUSF_IP4)
+               do_IRQ(CPU_IRQ_BASE + 4, regs);
+       else if (pending & STATUSF_IP5)
+               do_IRQ(CPU_IRQ_BASE + 5, regs);
+       else if (pending & STATUSF_IP6)
+               do_IRQ(CPU_IRQ_BASE + 6, regs);
+       else if (pending & STATUSF_IP0)
+               do_IRQ(CPU_IRQ_BASE, regs);
+       else if (pending & STATUSF_IP1)
+               do_IRQ(CPU_IRQ_BASE + 1, regs);
+
+       vrc5476_irq_dispatch(regs);
+}
+
 void __init arch_init_irq(void)
 {
        /* hardware initialization */
@@ -137,7 +162,4 @@ void __init arch_init_irq(void)
        setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_LBRT, &irq_error);
        setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_PCIS, &irq_error);
        setup_irq(VRC5476_IRQ_BASE + VRC5476_IRQ_PCI, &irq_error);
-
-       /* setup the grandpa intr vector */
-       set_except_vector(0, ddb5476_handle_int);
 }