LXR linux/arch/mips/include/asm/dec/ioasic.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 *      include/asm-mips/dec/ioasic.h
   4 *
   5 *      DEC I/O ASIC access operations.
   6 *
   7 *      Copyright (C) 2000, 2002, 2003  Maciej W. Rozycki
   8 */
   9
  10#ifndef __ASM_DEC_IOASIC_H
  11#define __ASM_DEC_IOASIC_H
  12
  13#include <linux/spinlock.h>
  14#include <linux/types.h>
  15
  16extern spinlock_t ioasic_ssr_lock;
  17
  18extern volatile u32 *ioasic_base;
  19
  20static inline void ioasic_write(unsigned int reg, u32 v)
  21{
  22        ioasic_base[reg / 4] = v;
  23}
  24
  25static inline u32 ioasic_read(unsigned int reg)
  26{
  27        return ioasic_base[reg / 4];
  28}
  29
  30extern void init_ioasic_irqs(int base);
  31
  32extern int dec_ioasic_clocksource_init(void);
  33
  34#endif /* __ASM_DEC_IOASIC_H */
  35