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