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/* irq.h: FRV IRQ definitions
*
* Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#ifndef _ASM_IRQ_H_
#define _ASM_IRQ_H_
#include <linux/config.h>
/*
* the system has an on-CPU PIC and another PIC on the FPGA and other PICs on other peripherals,
* so we do some routing in irq-routing.[ch] to reduce the number of false-positives seen by
* drivers
*/
/* this number is used when no interrupt has been assigned */
#define NO_IRQ (-1)
#define NR_IRQ_LOG2_ACTIONS_PER_GROUP 5
#define NR_IRQ_ACTIONS_PER_GROUP (1 << NR_IRQ_LOG2_ACTIONS_PER_GROUP)
#define NR_IRQ_GROUPS 4
#define NR_IRQS (NR_IRQ_ACTIONS_PER_GROUP * NR_IRQ_GROUPS)
/* probe returns a 32-bit IRQ mask:-/ */
#define MIN_PROBE_IRQ (NR_IRQS - 32)
static inline int irq_canonicalize(int irq)
{
return irq;
}
extern void disable_irq_nosync(unsigned int irq);
extern void disable_irq(unsigned int irq);
extern void enable_irq(unsigned int irq);
#endif /* _ASM_IRQ_H_ */
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