1/*
2 * BK Id: SCCS/s.hw_irq.h 1.10 05/17/01 18:14:24 cort
3 */
4/*
5 * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
6 */
7#ifdef __KERNEL__
8#ifndef _PPC_HW_IRQ_H
9#define _PPC_HW_IRQ_H
10
11extern unsigned long timer_interrupt_intercept;
12extern unsigned long do_IRQ_intercept;
13extern int timer_interrupt(struct pt_regs *);
14extern void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq);
15
16extern void __sti(void);
17extern void __cli(void);
18extern void __restore_flags(unsigned long);
19extern void __save_flags_ptr(unsigned long *);
20extern unsigned long __sti_end, __cli_end, __restore_flags_end, __save_flags_ptr_end;
21
22#define __save_flags(flags) __save_flags_ptr((unsigned long *)&flags)
23#define __save_and_cli(flags) ({__save_flags(flags);__cli();})
24
25extern void do_lost_interrupts(unsigned long);
26
27#define mask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->disable) irq_desc[irq].handler->disable(irq);})
28#define unmask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->enable) irq_desc[irq].handler->enable(irq);})
29#define ack_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->ack) irq_desc[irq].handler->ack(irq);})
30
31/* Should we handle this via lost interrupts and IPIs or should we don't care like
32 * we do now ? --BenH.
33 */
34struct hw_interrupt_type;
35static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) {}
36
37
38#endif /* _PPC_HW_IRQ_H */
39#endif /* __KERNEL__ */
40