projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle | |
| 7 | * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02, 03 by Ralf Baechle | |
| 8 | */ | |
| 9 | #ifndef _ASM_IRQ_H | |
| 10 | #define _ASM_IRQ_H | |
| 11 | ||
| 1da177e4 | 12 | #include <linux/linkage.h> |
| 631330f5 | 13 | #include <linux/smp.h> |
| abd2363f | 14 | #include <linux/irqdomain.h> |
| 41c594ab RB |
15 | |
| 16 | #include <asm/mipsmtregs.h> | |
| 17 | ||
| 1da177e4 LT |
18 | #include <irq.h> |
| 19 | ||
| 20 | #ifdef CONFIG_I8259 | |
| 21 | static inline int irq_canonicalize(int irq) | |
| 22 | { | |
| 2fa7937b | 23 | return ((irq == I8259A_IRQ_BASE + 2) ? I8259A_IRQ_BASE + 9 : irq); |
| 1da177e4 LT |
24 | } |
| 25 | #else | |
| 26 | #define irq_canonicalize(irq) (irq) /* Sane hardware, sane code ... */ | |
| 27 | #endif | |
| 28 | ||
| 8f99a162 | 29 | extern void do_IRQ(unsigned int irq); |
| 1da177e4 | 30 | |
| 1da177e4 | 31 | extern void arch_init_irq(void); |
| 937a8015 | 32 | extern void spurious_interrupt(void); |
| 1da177e4 | 33 | |
| 4a4cf779 RB |
34 | extern int allocate_irqno(void); |
| 35 | extern void alloc_legacy_irqno(void); | |
| 36 | extern void free_irqno(unsigned int irq); | |
| 37 | ||
| 3b1d4ed5 RB |
38 | /* |
| 39 | * Before R2 the timer and performance counter interrupts were both fixed to | |
| 70342287 | 40 | * IE7. Since R2 their number has to be read from the c0_intctl register. |
| 3b1d4ed5 RB |
41 | */ |
| 42 | #define CP0_LEGACY_COMPARE_IRQ 7 | |
| c6a4ebb9 | 43 | #define CP0_LEGACY_PERFCNT_IRQ 7 |
| 3b1d4ed5 RB |
44 | |
| 45 | extern int cp0_compare_irq; | |
| 010c108d | 46 | extern int cp0_compare_irq_shift; |
| 3b1d4ed5 RB |
47 | extern int cp0_perfcount_irq; |
| 48 | ||
| 1da177e4 | 49 | #endif /* _ASM_IRQ_H */ |