xref: /linux/arch/alpha/kernel/irq_impl.h (revision 827634added7f38b7d724cab1dccdb2b004c13c3)
1 /*
2  *	linux/arch/alpha/kernel/irq_impl.h
3  *
4  *	Copyright (C) 1995 Linus Torvalds
5  *	Copyright (C) 1998, 2000 Richard Henderson
6  *
7  * This file contains declarations and inline functions for interfacing
8  * with the IRQ handling routines in irq.c.
9  */
10 
11 #include <linux/interrupt.h>
12 #include <linux/irq.h>
13 #include <linux/profile.h>
14 
15 
16 #define RTC_IRQ    8
17 
18 extern void isa_device_interrupt(unsigned long);
19 extern void isa_no_iack_sc_device_interrupt(unsigned long);
20 extern void srm_device_interrupt(unsigned long);
21 extern void pyxis_device_interrupt(unsigned long);
22 
23 extern struct irqaction timer_irqaction;
24 extern struct irqaction isa_cascade_irqaction;
25 extern struct irqaction timer_cascade_irqaction;
26 extern struct irqaction halt_switch_irqaction;
27 
28 extern void init_srm_irqs(long, unsigned long);
29 extern void init_pyxis_irqs(unsigned long);
30 extern void init_rtc_irq(void);
31 
32 extern void common_init_isa_dma(void);
33 
34 extern void i8259a_enable_irq(struct irq_data *d);
35 extern void i8259a_disable_irq(struct irq_data *d);
36 extern void i8259a_mask_and_ack_irq(struct irq_data *d);
37 extern struct irq_chip i8259a_irq_type;
38 extern void init_i8259a_irqs(void);
39 
40 extern void handle_irq(int irq);
41