2 * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
8 extern void timer_interrupt(struct pt_regs *);
9 extern void ppc_irq_dispatch_handler(struct pt_regs *regs, int irq);
13 #define mfmsr() ({unsigned int rval; \
14 asm volatile("mfmsr %0" : "=r" (rval)); rval;})
15 #define mtmsr(v) asm volatile("mtmsr %0" : : "r" (v))
17 #define irqs_disabled() ((mfmsr() & MSR_EE) == 0)
21 static inline void local_irq_disable(void)
26 __asm__ __volatile__("": : :"memory");
29 static inline void local_irq_enable(void)
32 __asm__ __volatile__("": : :"memory");
37 static inline void local_irq_save_ptr(unsigned long *flags)
43 __asm__ __volatile__("": : :"memory");
46 #define local_save_flags(flags) ((flags) = mfmsr())
47 #define local_irq_save(flags) local_irq_save_ptr(&flags)
48 #define local_irq_restore(flags) mtmsr(flags)
52 extern void local_irq_enable(void);
53 extern void local_irq_disable(void);
54 extern void local_irq_restore(unsigned long);
55 extern void local_save_flags_ptr(unsigned long *);
57 #define local_save_flags(flags) local_save_flags_ptr(&flags)
58 #define local_irq_save(flags) ({local_save_flags(flags);local_irq_disable();})
62 extern void do_lost_interrupts(unsigned long);
64 #define mask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->disable) irq_desc[irq].handler->disable(irq);})
65 #define unmask_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->enable) irq_desc[irq].handler->enable(irq);})
66 #define ack_irq(irq) ({if (irq_desc[irq].handler && irq_desc[irq].handler->ack) irq_desc[irq].handler->ack(irq);})
68 /* Should we handle this via lost interrupts and IPIs or should we don't care like
71 struct hw_interrupt_type;
72 static inline void hw_resend_irq(struct hw_interrupt_type *h, unsigned int i) {}
75 #endif /* _PPC_HW_IRQ_H */
76 #endif /* __KERNEL__ */