asmlinkage void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
{
u32 irqstat, irqnr;
do {
irqstat = readl_relaxed(gic_cpu_base_addr + GIC_CPU_INTACK);
irqnr = irqstat & 0x3ff;
if (irqnr == 1023)
break;
if (irqnr > 29 && irqnr < 1021)
handle_IRQ(irqnr, regs);
#ifdef CONFIG_SMP
else if (irqnr < 16) {
writel_relaxed(irqstat, gic_cpu_base_addr +
GIC_CPU_EOI);
handle_IPI(irqnr, regs);
}
#endif
#ifdef CONFIG_LOCAL_TIMERS
else if (irqnr == 29) {
writel_relaxed(irqstat, gic_cpu_base_addr +
GIC_CPU_EOI);
handle_local_timer(regs);
}
#endif
} while (1);
}
static void
__exception_irq_entry bcm2836_arm_irqchip_handle_irq(struct pt_regs *regs)
{
int cpu = smp_processor_id();
u32 stat;
stat = readl_relaxed(intc.base + LOCAL_IRQ_PENDING0 + 4 * cpu);
if (stat & BIT(LOCAL_IRQ_MAILBOX0)) {
#ifdef CONFIG_SMP
void __iomem *mailbox0 = (intc.base +
LOCAL_MAILBOX0_CLR0 + 16 * cpu);
u32 mbox_val = readl(mailbox0);
u32 ipi = ffs(mbox_val) - 1;
writel(1 << ipi, mailbox0);
handle_IPI(ipi, regs);
#endif
} else if (stat) {
u32 hwirq = ffs(stat) - 1;
handle_domain_irq(intc.domain, hwirq, regs);
}
}
