/* * Copyright (C) 2004-2006 Atmel Corporation * * Based on arch/i386/kernel/irq.c * Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kernel_stat.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/sysdev.h> /* * 'what should we do if we get a hw irq event on an illegal vector'. * each architecture has to answer this themselves. */ void ack_bad_irq(unsigned int irq) { printk("unexpected IRQ %u\n", irq); } #ifdef CONFIG_PROC_FS int show_interrupts(struct seq_file *p, void *v) { int i = *(loff_t *)v, cpu; struct irqaction *action; unsigned long flags; if (i == 0) { seq_puts(p, " "); for_each_online_cpu(cpu) seq_printf(p, "CPU%d ", cpu); seq_putc(p, '\n'); } if (i < NR_IRQS) { spin_lock_irqsave(&irq_desc[i].lock, flags); action = irq_desc[i].action; if (!action) goto unlock; seq_printf(p, "%3d: ", i); for_each_online_cpu(cpu) seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[i]); seq_printf(p, " %8s", irq_desc[i].chip->name ? : "-"); seq_printf(p, " %s", action->name); for (action = action->next; action; action = action->next) seq_printf(p, ", %s", action->name); seq_putc(p, '\n'); unlock: spin_unlock_irqrestore(&irq_desc[i].lock, flags); } return 0; } #endif