LXR linux/arch/parisc/include/asm/irq.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * include/asm-parisc/irq.h
   4 *
   5 * Copyright 2005 Matthew Wilcox <matthew@wil.cx>
   6 */
   7
   8#ifndef _ASM_PARISC_IRQ_H
   9#define _ASM_PARISC_IRQ_H
  10
  11#include <linux/cpumask.h>
  12#include <asm/types.h>
  13
  14#define NO_IRQ          (-1)
  15
  16#ifdef CONFIG_GSC
  17#define GSC_IRQ_BASE    16
  18#define GSC_IRQ_MAX     63
  19#define CPU_IRQ_BASE    64
  20#else
  21#define CPU_IRQ_BASE    16
  22#endif
  23
  24#define TIMER_IRQ       (CPU_IRQ_BASE + 0)
  25#define IPI_IRQ         (CPU_IRQ_BASE + 1)
  26#define CPU_IRQ_MAX     (CPU_IRQ_BASE + (BITS_PER_LONG - 1))
  27
  28#define NR_IRQS         (CPU_IRQ_MAX + 1)
  29
  30static __inline__ int irq_canonicalize(int irq)
  31{
  32        return (irq == 2) ? 9 : irq;
  33}
  34
  35struct irq_chip;
  36struct irq_data;
  37
  38void cpu_ack_irq(struct irq_data *d);
  39void cpu_eoi_irq(struct irq_data *d);
  40
  41extern int txn_alloc_irq(unsigned int nbits);
  42extern int txn_claim_irq(int);
  43extern unsigned int txn_alloc_data(unsigned int);
  44extern unsigned long txn_alloc_addr(unsigned int);
  45extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
  46
  47extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
  48extern int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest);
  49
  50#endif  /* _ASM_PARISC_IRQ_H */
  51