linux-2.6.33/asm_do_IRQ(arm) の履歴(No.1)

• 履歴一覧
• ソース を表示
• linux-2.6.33/asm_do_IRQ(arm) は削除されています。
  • 1 (2010-11-19 (金) 17:24:38)

参照元†

説明†

• パス: 複数あり
  • arm 版: linux-2.6.33/arch/arm/kernel/irq.c

• FIXME: これは何？
  • 説明

引数†

• unsigned int irq
• struct pt_regs *regs

返り値†

参考†

実装†

/*
 * do_IRQ handles all hardware IRQ's.  Decoded IRQs should not
 * come via this function.  Instead, they should provide their
 * own 'handler'
 */
asmlinkage void __exception asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
{
	struct pt_regs *old_regs = set_irq_regs(regs);

	irq_enter();

	/*
	 * Some hardware gives randomly wrong interrupts.  Rather
	 * than crashing, do something sensible.
	 */
	if (unlikely(irq >= NR_IRQS)) {
		if (printk_ratelimit())
			printk(KERN_WARNING "Bad IRQ%u\n", irq);
		ack_bad_irq(irq);
	} else {
		generic_handle_irq(irq);
	}

	/* AT91 specific workaround */
	irq_finish(irq);

	irq_exit();
	set_irq_regs(old_regs);
}

コメント†