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ce378f7da8
Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/*
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* Copyright (C) 2004-2006 Atmel Corporation
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*
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* Based on arch/i386/kernel/irq.c
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* Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/kernel_stat.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/sysdev.h>
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/* May be overridden by platform code */
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int __weak nmi_enable(void)
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{
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return -ENOSYS;
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}
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void __weak nmi_disable(void)
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{
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}
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#ifdef CONFIG_PROC_FS
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int show_interrupts(struct seq_file *p, void *v)
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{
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int i = *(loff_t *)v, cpu;
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struct irqaction *action;
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unsigned long flags;
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if (i == 0) {
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seq_puts(p, " ");
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for_each_online_cpu(cpu)
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seq_printf(p, "CPU%d ", cpu);
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seq_putc(p, '\n');
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}
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if (i < NR_IRQS) {
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spin_lock_irqsave(&irq_desc[i].lock, flags);
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action = irq_desc[i].action;
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if (!action)
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goto unlock;
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seq_printf(p, "%3d: ", i);
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for_each_online_cpu(cpu)
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seq_printf(p, "%10u ", kstat_irqs_cpu(i, cpu));
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seq_printf(p, " %8s", irq_desc[i].chip->name ? : "-");
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seq_printf(p, " %s", action->name);
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for (action = action->next; action; action = action->next)
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seq_printf(p, ", %s", action->name);
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seq_putc(p, '\n');
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unlock:
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spin_unlock_irqrestore(&irq_desc[i].lock, flags);
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}
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return 0;
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}
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#endif
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