diff options
Diffstat (limited to 'arch/mips/ddb5xxx/ddb5477/irq.c')
| -rw-r--r-- | arch/mips/ddb5xxx/ddb5477/irq.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/arch/mips/ddb5xxx/ddb5477/irq.c b/arch/mips/ddb5xxx/ddb5477/irq.c index 9ffe1a9..de433cf 100644 --- a/arch/mips/ddb5xxx/ddb5477/irq.c +++ b/arch/mips/ddb5xxx/ddb5477/irq.c @@ -75,7 +75,6 @@ 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 +134,6 @@ 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 +155,7 @@ 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 +193,21 @@ 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); +} |