| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle |
| * Copyright (C) 1995, 96, 97, 98, 99, 2000, 01, 02, 03 by Ralf Baechle |
| */ |
| #ifndef _ASM_IRQ_H |
| #define _ASM_IRQ_H |
| |
| #include <linux/linkage.h> |
| #include <linux/smp.h> |
| #include <linux/irqdomain.h> |
| |
| #include <asm/mipsmtregs.h> |
| |
| #include <irq.h> |
| |
| #ifdef CONFIG_I8259 |
| static inline int irq_canonicalize(int irq) |
| { |
| return ((irq == I8259A_IRQ_BASE + 2) ? I8259A_IRQ_BASE + 9 : irq); |
| } |
| #else |
| #define irq_canonicalize(irq) (irq) /* Sane hardware, sane code ... */ |
| #endif |
| |
| extern void do_IRQ(unsigned int irq); |
| |
| extern void arch_init_irq(void); |
| extern void spurious_interrupt(void); |
| |
| extern int allocate_irqno(void); |
| extern void alloc_legacy_irqno(void); |
| extern void free_irqno(unsigned int irq); |
| |
| /* |
| * Before R2 the timer and performance counter interrupts were both fixed to |
| * IE7. Since R2 their number has to be read from the c0_intctl register. |
| */ |
| #define CP0_LEGACY_COMPARE_IRQ 7 |
| #define CP0_LEGACY_PERFCNT_IRQ 7 |
| |
| extern int cp0_compare_irq; |
| extern int cp0_compare_irq_shift; |
| extern int cp0_perfcount_irq; |
| |
| #endif /* _ASM_IRQ_H */ |
