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/*
* linux/arch/alpha/kernel/irq.h
*
* Copyright (C) 1995 Linus Torvalds
* Copyright (C) 1998 Richard Henderson
*
* This file contains declarations and inline functions for interfacing
* with the IRQ handling routines in irq.c.
*/
#include <linux/config.h>
#define STANDARD_INIT_IRQ_PROLOG \
outb(0, DMA1_RESET_REG); \
outb(0, DMA2_RESET_REG); \
outb(0, DMA1_CLR_MASK_REG); \
outb(0, DMA2_CLR_MASK_REG)
extern unsigned long alpha_irq_mask;
extern void common_ack_irq(unsigned long irq);
extern void isa_device_interrupt(unsigned long vector, struct pt_regs * regs);
extern void srm_device_interrupt(unsigned long vector, struct pt_regs * regs);
extern void handle_irq(int irq, int ack, struct pt_regs * regs);
#define RTC_IRQ 8
#ifdef CONFIG_RTC
#define TIMER_IRQ 0 /* timer is the pit */
#else
#define TIMER_IRQ RTC_IRQ /* timer is the rtc */
#endif
extern char _stext;
static inline void alpha_do_profile (unsigned long pc)
{
if (prof_buffer && current->pid) {
pc -= (unsigned long) &_stext;
pc >>= prof_shift;
/*
* Don't ignore out-of-bounds PC values silently,
* put them into the last histogram slot, so if
* present, they will show up as a sharp peak.
*/
if (pc > prof_len - 1)
pc = prof_len - 1;
atomic_inc((atomic_t *)&prof_buffer[pc]);
}
}
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