diff options
Diffstat (limited to 'arch/mips/sgi-ip27/ip27-irq.c')
| -rw-r--r-- | arch/mips/sgi-ip27/ip27-irq.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c index 2854ac4c9be..2e643d2f51c 100644 --- a/arch/mips/sgi-ip27/ip27-irq.c +++ b/arch/mips/sgi-ip27/ip27-irq.c @@ -130,7 +130,7 @@ static int ms1bit(unsigned long x) * Kanoj 05.13.00 */ -void ip27_do_irq_mask0(struct pt_regs *regs) +static void ip27_do_irq_mask0(struct pt_regs *regs) { int irq, swlevel; hubreg_t pend0, mask0; @@ -171,7 +171,7 @@ void ip27_do_irq_mask0(struct pt_regs *regs) LOCAL_HUB_L(PI_INT_PEND0); } -void ip27_do_irq_mask1(struct pt_regs *regs) +static void ip27_do_irq_mask1(struct pt_regs *regs) { int irq, swlevel; hubreg_t pend1, mask1; @@ -196,12 +196,12 @@ void ip27_do_irq_mask1(struct pt_regs *regs) LOCAL_HUB_L(PI_INT_PEND1); } -void ip27_prof_timer(struct pt_regs *regs) +static void ip27_prof_timer(struct pt_regs *regs) { panic("CPU %d got a profiling interrupt", smp_processor_id()); } -void ip27_hub_error(struct pt_regs *regs) +static void ip27_hub_error(struct pt_regs *regs) { panic("CPU %d got a hub error interrupt", smp_processor_id()); } @@ -421,9 +421,26 @@ int __devinit request_bridge_irq(struct bridge_controller *bc) return irq; } +extern void ip27_rt_timer_interrupt(struct pt_regs *regs); + +asmlinkage void plat_irq_dispatch(struct pt_regs *regs) +{ + unsigned long pending = read_c0_cause() & read_c0_status(); + + if (pending & CAUSEF_IP4) + ip27_rt_timer_interrupt(regs); + else if (pending & CAUSEF_IP2) /* PI_INT_PEND_0 or CC_PEND_{A|B} */ + ip27_do_irq_mask0(regs); + else if (pending & CAUSEF_IP3) /* PI_INT_PEND_1 */ + ip27_do_irq_mask1(regs); + else if (pending & CAUSEF_IP5) + ip27_prof_timer(regs); + else if (pending & CAUSEF_IP6) + ip27_hub_error(regs); +} + void __init arch_init_irq(void) { - set_except_vector(0, ip27_irq); } void install_ipi(void) |