diff options
Diffstat (limited to 'include/asm-frv/irq.h')
| -rw-r--r-- | include/asm-frv/irq.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/asm-frv/irq.h b/include/asm-frv/irq.h new file mode 100644 index 00000000000..2c16d8dc02f --- /dev/null +++ b/include/asm-frv/irq.h @@ -0,0 +1,44 @@ +/* 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_ */ |