projects / linux-2.6 / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* irq.h: FRV IRQ definitions |
| 2 | * | |
| 3 | * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. | |
| 4 | * Written by David Howells (dhowells@redhat.com) | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License | |
| 8 | * as published by the Free Software Foundation; either version | |
| 9 | * 2 of the License, or (at your option) any later version. | |
| 10 | */ | |
| 11 | ||
| 12 | #ifndef _ASM_IRQ_H_ | |
| 13 | #define _ASM_IRQ_H_ | |
| 14 | ||
| 15 | #include <linux/config.h> | |
| 16 | ||
| 17 | /* | |
| 18 | * the system has an on-CPU PIC and another PIC on the FPGA and other PICs on other peripherals, | |
| 19 | * so we do some routing in irq-routing.[ch] to reduce the number of false-positives seen by | |
| 20 | * drivers | |
| 21 | */ | |
| 22 | ||
| 23 | /* this number is used when no interrupt has been assigned */ | |
| 24 | #define NO_IRQ (-1) | |
| 25 | ||
| 26 | #define NR_IRQ_LOG2_ACTIONS_PER_GROUP 5 | |
| 27 | #define NR_IRQ_ACTIONS_PER_GROUP (1 << NR_IRQ_LOG2_ACTIONS_PER_GROUP) | |
| 28 | #define NR_IRQ_GROUPS 4 | |
| 29 | #define NR_IRQS (NR_IRQ_ACTIONS_PER_GROUP * NR_IRQ_GROUPS) | |
| 30 | ||
| 31 | /* probe returns a 32-bit IRQ mask:-/ */ | |
| 32 | #define MIN_PROBE_IRQ (NR_IRQS - 32) | |
| 33 | ||
| 34 | static inline int irq_canonicalize(int irq) | |
| 35 | { | |
| 36 | return irq; | |
| 37 | } | |
| 38 | ||
| 39 | extern void disable_irq_nosync(unsigned int irq); | |
| 40 | extern void disable_irq(unsigned int irq); | |
| 41 | extern void enable_irq(unsigned int irq); | |
| 42 | ||
| 43 | ||
| 44 | #endif /* _ASM_IRQ_H_ */ |