[mirror_ubuntu-artful-kernel.git] / arch / mips / include / asm / irq.h

/*
 * 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

asmlinkage void plat_irq_dispatch(void);

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;
extern int cp0_fdc_irq;

extern int __weak get_c0_fdc_int(void);

void arch_trigger_all_cpu_backtrace(bool);
#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace

#endif /* _ASM_IRQ_H */
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
950e97ca SR	29	asmlinkage void plat_irq_dispatch(void);
950e97ca SR	30
8f99a162	31	extern void do_IRQ(unsigned int irq);
1da177e4	32
1da177e4	33	extern void arch_init_irq(void);
937a8015	34	extern void spurious_interrupt(void);
1da177e4	35
4a4cf779 RB	36	extern int allocate_irqno(void);
	37	extern void alloc_legacy_irqno(void);
	38	extern void free_irqno(unsigned int irq);
	39
3b1d4ed5 RB	40	/*
3b1d4ed5 RB	41	* Before R2 the timer and performance counter interrupts were both fixed to
70342287	42	* IE7. Since R2 their number has to be read from the c0_intctl register.
3b1d4ed5 RB	43	*/
3b1d4ed5 RB	44	#define CP0_LEGACY_COMPARE_IRQ 7
c6a4ebb9	45	#define CP0_LEGACY_PERFCNT_IRQ 7
3b1d4ed5 RB	46
3b1d4ed5 RB	47	extern int cp0_compare_irq;
010c108d	48	extern int cp0_compare_irq_shift;
3b1d4ed5	49	extern int cp0_perfcount_irq;
8f7ff027 JH	50	extern int cp0_fdc_irq;
	51
	52	extern int __weak get_c0_fdc_int(void);
3b1d4ed5	53
856839b7 ES	54	void arch_trigger_all_cpu_backtrace(bool);
	55	#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
	56
1da177e4	57	#endif /* _ASM_IRQ_H */