Release 4.11 arch/metag/include/asm/spinlock.h

#ifndef __ASM_SPINLOCK_H

#define __ASM_SPINLOCK_H

#include <asm/barrier.h>
#include <asm/processor.h>

#ifdef CONFIG_METAG_ATOMICITY_LOCK1
#include <asm/spinlock_lock1.h>
#else
#include <asm/spinlock_lnkget.h>
#endif

/*
 * both lock1 and lnkget are test-and-set spinlocks with 0 unlocked and 1
 * locked.
 */



static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
{
	smp_cond_load_acquire(&lock->lock, !VAL);
}

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#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)


#define	arch_read_lock_flags(lock, flags) arch_read_lock(lock)

#define	arch_write_lock_flags(lock, flags) arch_write_lock(lock)


#define arch_spin_relax(lock)	cpu_relax()

#define arch_read_relax(lock)	cpu_relax()

#define arch_write_relax(lock)	cpu_relax()

#endif /* __ASM_SPINLOCK_H */
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Directory: arch/metag/include/asm

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