source: src/linux/universal/linux-4.9/arch/mips/include/asm/irq.h @ 31574

Last change on this file since 31574 was 31574, checked in by brainslayer, 3 months ago

kernel 4.9 update

File size: 1.5 KB
Line 
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
12#include <linux/linkage.h>
13#include <linux/smp.h>
14#include <linux/irqdomain.h>
15
16#include <asm/mipsmtregs.h>
17
18#include <irq.h>
19
20#ifdef CONFIG_I8259
21static inline int irq_canonicalize(int irq)
22{
23        return ((irq == I8259A_IRQ_BASE + 2) ? I8259A_IRQ_BASE + 9 : irq);
24}
25#else
26#define irq_canonicalize(irq) (irq)     /* Sane hardware, sane code ... */
27#endif
28
29asmlinkage void plat_irq_dispatch(void);
30
31extern void do_IRQ(unsigned int irq);
32
33extern void arch_init_irq(void);
34extern void spurious_interrupt(void);
35
36extern int allocate_irqno(void);
37extern void alloc_legacy_irqno(void);
38extern void free_irqno(unsigned int irq);
39
40/*
41 * Before R2 the timer and performance counter interrupts were both fixed to
42 * IE7.  Since R2 their number has to be read from the c0_intctl register.
43 */
44#define CP0_LEGACY_COMPARE_IRQ 7
45#define CP0_LEGACY_PERFCNT_IRQ 7
46
47extern int cp0_compare_irq;
48extern int cp0_compare_irq_shift;
49extern int cp0_perfcount_irq;
50extern int cp0_fdc_irq;
51
52extern int get_c0_fdc_int(void);
53
54void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
55                                    bool exclude_self);
56#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
57
58#endif /* _ASM_IRQ_H */
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