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
  30 static __inline__ int irq_canonicalize(int irq)
  31 {
  32         return (irq == 2) ? 9 : irq;
  33 }
  34
  35 struct irq_chip;
  36 struct irq_data;
  37
  38 void cpu_ack_irq(struct irq_data *d);
  39 void cpu_eoi_irq(struct irq_data *d);
  40
  41 extern int txn_alloc_irq(unsigned int nbits);
  42 extern int txn_claim_irq(int);
  43 extern unsigned int txn_alloc_data(unsigned int);
  44 extern unsigned long txn_alloc_addr(unsigned int);
  45 extern unsigned long txn_affinity_addr(unsigned int irq, int cpu);
  46
  47 extern int cpu_claim_irq(unsigned int irq, struct irq_chip *, void *);
  48 extern int cpu_check_affinity(struct irq_data *d, const struct cpumask *dest);
  49
  50 /* soft power switch support (power.c) */
  51 extern struct tasklet_struct power_tasklet;
  52
  53 #endif  /* _ASM_PARISC_IRQ_H */