Release 4.15 arch/blackfin/include/asm/spinlock.h

/*
 * Copyright 2004-2009 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#ifndef __BFIN_SPINLOCK_H

#define __BFIN_SPINLOCK_H

#ifndef CONFIG_SMP
# include <asm-generic/spinlock.h>
#else

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

asmlinkage int __raw_spin_is_locked_asm(volatile int *ptr);
asmlinkage void __raw_spin_lock_asm(volatile int *ptr);
asmlinkage int __raw_spin_trylock_asm(volatile int *ptr);
asmlinkage void __raw_spin_unlock_asm(volatile int *ptr);
asmlinkage void __raw_read_lock_asm(volatile int *ptr);
asmlinkage int __raw_read_trylock_asm(volatile int *ptr);
asmlinkage void __raw_read_unlock_asm(volatile int *ptr);
asmlinkage void __raw_write_lock_asm(volatile int *ptr);
asmlinkage int __raw_write_trylock_asm(volatile int *ptr);
asmlinkage void __raw_write_unlock_asm(volatile int *ptr);



static inline int arch_spin_is_locked(arch_spinlock_t *lock)
{
	return __raw_spin_is_locked_asm(&lock->lock);
}

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static inline void arch_spin_lock(arch_spinlock_t *lock)
{
	__raw_spin_lock_asm(&lock->lock);
}

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static inline int arch_spin_trylock(arch_spinlock_t *lock)
{
	return __raw_spin_trylock_asm(&lock->lock);
}

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static inline void arch_spin_unlock(arch_spinlock_t *lock)
{
	__raw_spin_unlock_asm(&lock->lock);
}

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static inline void arch_read_lock(arch_rwlock_t *rw)
{
	__raw_read_lock_asm(&rw->lock);
}

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static inline int arch_read_trylock(arch_rwlock_t *rw)
{
	return __raw_read_trylock_asm(&rw->lock);
}

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static inline void arch_read_unlock(arch_rwlock_t *rw)
{
	__raw_read_unlock_asm(&rw->lock);
}

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static inline void arch_write_lock(arch_rwlock_t *rw)
{
	__raw_write_lock_asm(&rw->lock);
}

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static inline int arch_write_trylock(arch_rwlock_t *rw)
{
	return __raw_write_trylock_asm(&rw->lock);
}

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static inline void arch_write_unlock(arch_rwlock_t *rw)
{
	__raw_write_unlock_asm(&rw->lock);
}

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#endif

#endif /*  !__BFIN_SPINLOCK_H */
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Mike Frysinger
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Bryan Wu
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Peter Zijlstra
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Arun Sharma
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Directory: arch/blackfin/include/asm

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