mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 06:12:08 +00:00
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/* 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_
|
|
|
|
|
|
/*
|
|
* 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_ */
|