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/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle
* Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02, 03 by Ralf Baechle
*/
#ifndef _ASM_IRQ_H
#define _ASM_IRQ_H
#include <linux/linkage.h>
#include <linux/smp.h>
#include <irq.h>
#define irq_canonicalize(irq) (irq) /* Sane hardware, sane code ... */
/*
* do_IRQ handles all normal device IRQ's (the special
* SMP cross-CPU interrupts have their own specific
* handlers).
*
* Ideally there should be away to get this into kernel/irq/handle.c to
* avoid the overhead of a call for just a tiny function ...
*/
#define do_IRQ(irq) \
do { \
irq_enter(); \
generic_handle_irq(irq); \
irq_exit(); \
} while (0)
// rock: add more detail spurious int info 2010-04-06
enum {
SPURIOS_INT_CPU = 0,
SPURIOS_INT_LOPI,
SPURIOS_INT_CASCADE,
SPURIOS_INT_MAX
};
extern void arch_init_irq(void);
#if defined(CONFIG_RTK_VOIP) || defined(CONFIG_RTL_819X)
extern void spurious_interrupt(int i);
#else
extern void spurious_interrupt(void);
#endif
extern int allocate_irqno(void);
extern void alloc_legacy_irqno(void);
extern void free_irqno(unsigned int irq);
/*
* Before R2 the timer and performance counter interrupts were both fixed to
* IE7. Since R2 their number has to be read from the c0_intctl register.
*/
#define CP0_LEGACY_COMPARE_IRQ 7
extern int cp0_compare_irq;
extern int cp0_perfcount_irq;
#endif /* _ASM_IRQ_H */
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