| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | |
| 16 | /* |
| 17 | * the system has an on-CPU PIC and another PIC on the FPGA and other PICs on other peripherals, |
| 18 | * so we do some routing in irq-routing.[ch] to reduce the number of false-positives seen by |
| 19 | * drivers |
| 20 | */ |
| 21 | |
| 22 | /* this number is used when no interrupt has been assigned */ |
| 23 | #define NO_IRQ (-1) |
| 24 | |
| 25 | #define NR_IRQ_LOG2_ACTIONS_PER_GROUP 5 |
| 26 | #define NR_IRQ_ACTIONS_PER_GROUP (1 << NR_IRQ_LOG2_ACTIONS_PER_GROUP) |
| 27 | #define NR_IRQ_GROUPS 4 |
| 28 | #define NR_IRQS (NR_IRQ_ACTIONS_PER_GROUP * NR_IRQ_GROUPS) |
| 29 | |
| 30 | /* probe returns a 32-bit IRQ mask:-/ */ |
| 31 | #define MIN_PROBE_IRQ (NR_IRQS - 32) |
| 32 | |
| 33 | static inline int irq_canonicalize(int irq) |
| 34 | { |
| 35 | return irq; |
| 36 | } |
| 37 | |
| 38 | extern void disable_irq_nosync(unsigned int irq); |
| 39 | extern void disable_irq(unsigned int irq); |
| 40 | extern void enable_irq(unsigned int irq); |
| 41 | |
| 42 | |
| 43 | #endif /* _ASM_IRQ_H_ */ |