#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/trace.h>
+#include <asm/pda.h>
static atomic_t irq_err_count;
static spinlock_t irq_controller_lock;
goto skip;
seq_printf(p, "%3d: ", i);
for_each_online_cpu(j)
- seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+ seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
seq_printf(p, " %8s", irq_desc[i].chip->name);
seq_printf(p, " %s", action->name);
for (action = action->next; action; action = action->next)
seq_putc(p, '\n');
skip:
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
- } else if (i == NR_IRQS)
+ } else if (i == NR_IRQS) {
+ seq_printf(p, "NMI: ");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
+ seq_printf(p, " CORE Non Maskable Interrupt\n");
seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count));
+ }
return 0;
}
{
struct pt_regs *old_regs;
struct irq_desc *desc = irq_desc + irq;
+#ifndef CONFIG_IPIPE
unsigned short pending, other_ints;
-
+#endif
old_regs = set_irq_regs(regs);
/*
desc = &bad_irq_desc;
irq_enter();
-
+#ifdef CONFIG_DEBUG_STACKOVERFLOW
+ /* Debugging check for stack overflow: is there less than STACK_WARN free? */
+ {
+ long sp;
+
+ sp = __get_SP() & (THREAD_SIZE-1);
+
+ if (unlikely(sp < (sizeof(struct thread_info) + STACK_WARN))) {
+ dump_stack();
+ printk(KERN_EMERG "%s: possible stack overflow while handling irq %i "
+ " only %ld bytes free\n",
+ __func__, irq, sp - sizeof(struct thread_info));
+ }
+ }
+#endif
generic_handle_irq(irq);
+#ifndef CONFIG_IPIPE /* Useless and bugous over the I-pipe: IRQs are threaded. */
/* If we're the only interrupt running (ignoring IRQ15 which is for
syscalls), lower our priority to IRQ14 so that softirqs run at
that level. If there's another, lower-level interrupt, irq_exit
other_ints = pending & (pending - 1);
if (other_ints == 0)
lower_to_irq14();
+#endif /* !CONFIG_IPIPE */
irq_exit();
set_irq_regs(old_regs);