arch/metag/include/asm/spinlock.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SPINLOCK_H
   3 #define __ASM_SPINLOCK_H
   4
   5 #include <asm/barrier.h>
   6 #include <asm/processor.h>
   7
   8 #ifdef CONFIG_METAG_ATOMICITY_LOCK1
   9 #include <asm/spinlock_lock1.h>
  10 #else
  11 #include <asm/spinlock_lnkget.h>
  12 #endif
  13
  14 /*
  15  * both lock1 and lnkget are test-and-set spinlocks with 0 unlocked and 1
  16  * locked.
  17  */
  18
  19 #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
  20
  21 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
  22 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
  23
  24 #define arch_spin_relax(lock)   cpu_relax()
  25 #define arch_read_relax(lock)   cpu_relax()
  26 #define arch_write_relax(lock)  cpu_relax()
  27
  28 #endif /* __ASM_SPINLOCK_H */