linux/arch/parisc/include/asm/spinlock_types.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __ASM_SPINLOCK_TYPES_H
   3#define __ASM_SPINLOCK_TYPES_H
   4
   5typedef struct {
   6#ifdef CONFIG_PA20
   7        volatile unsigned int slock;
   8# define __ARCH_SPIN_LOCK_UNLOCKED { 1 }
   9#else
  10        volatile unsigned int lock[4];
  11# define __ARCH_SPIN_LOCK_UNLOCKED      { { 1, 1, 1, 1 } }
  12#endif
  13} arch_spinlock_t;
  14
  15typedef struct {
  16        arch_spinlock_t lock;
  17        volatile int counter;
  18} arch_rwlock_t;
  19
  20#define __ARCH_RW_LOCK_UNLOCKED         { __ARCH_SPIN_LOCK_UNLOCKED, 0 }
  21
  22#endif
  23