linux/arch/parisc/include/asm/spinlock_types.h
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   1#ifndef __ASM_SPINLOCK_TYPES_H
   2#define __ASM_SPINLOCK_TYPES_H
   3
   4typedef struct {
   5#ifdef CONFIG_PA20
   6        volatile unsigned int slock;
   7# define __RAW_SPIN_LOCK_UNLOCKED { 1 }
   8#else
   9        volatile unsigned int lock[4];
  10# define __RAW_SPIN_LOCK_UNLOCKED       { { 1, 1, 1, 1 } }
  11#endif
  12} raw_spinlock_t;
  13
  14typedef struct {
  15        raw_spinlock_t lock;
  16        volatile int counter;
  17} raw_rwlock_t;
  18
  19#define __RAW_RW_LOCK_UNLOCKED          { __RAW_SPIN_LOCK_UNLOCKED, 0 }
  20
  21#endif
  22