arch/parisc/include/asm/spinlock_types.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SPINLOCK_TYPES_H
   3 #define __ASM_SPINLOCK_TYPES_H
   4
   5 typedef 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
  15 typedef 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