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

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ASM_ARM_IRQ_H
   3#define __ASM_ARM_IRQ_H
   4
   5#define NR_IRQS_LEGACY  16
   6
   7#ifndef CONFIG_SPARSE_IRQ
   8#include <mach/irqs.h>
   9#else
  10#define NR_IRQS NR_IRQS_LEGACY
  11#endif
  12
  13#ifndef irq_canonicalize
  14#define irq_canonicalize(i)     (i)
  15#endif
  16
  17/*
  18 * Use this value to indicate lack of interrupt
  19 * capability
  20 */
  21#ifndef NO_IRQ
  22#define NO_IRQ  ((unsigned int)(-1))
  23#endif
  24
  25#ifndef __ASSEMBLY__
  26struct irqaction;
  27struct pt_regs;
  28
  29extern void asm_do_IRQ(unsigned int, struct pt_regs *);
  30void handle_IRQ(unsigned int, struct pt_regs *);
  31void init_IRQ(void);
  32
  33#ifdef CONFIG_SMP
  34extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
  35                                           bool exclude_self);
  36#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
  37#endif
  38
  39static inline int nr_legacy_irqs(void)
  40{
  41        return NR_IRQS_LEGACY;
  42}
  43
  44#endif
  45
  46#endif
  47
  48