33 lines
775 B
C
33 lines
775 B
C
#ifndef __ASM_SPINLOCK_H
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#define __ASM_SPINLOCK_H
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#include <asm/barrier.h>
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#include <asm/processor.h>
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#ifdef CONFIG_METAG_ATOMICITY_LOCK1
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#include <asm/spinlock_lock1.h>
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#else
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#include <asm/spinlock_lnkget.h>
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#endif
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/*
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* both lock1 and lnkget are test-and-set spinlocks with 0 unlocked and 1
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* locked.
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*/
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static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
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{
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smp_cond_load_acquire(&lock->lock, !VAL);
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}
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#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
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#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
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#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
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#define arch_spin_relax(lock) cpu_relax()
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#define arch_read_relax(lock) cpu_relax()
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#define arch_write_relax(lock) cpu_relax()
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#endif /* __ASM_SPINLOCK_H */
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