xref: /openbmc/linux/arch/mips/include/asm/spinlock.h (revision d8d0da4e)
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * Copyright (C) 1999, 2000, 06 Ralf Baechle (ralf@linux-mips.org)
7  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
8  */
9 #ifndef _ASM_SPINLOCK_H
10 #define _ASM_SPINLOCK_H
11 
12 #include <asm/processor.h>
13 
14 #include <asm-generic/qspinlock_types.h>
15 
16 #define	queued_spin_unlock queued_spin_unlock
17 /**
18  * queued_spin_unlock - release a queued spinlock
19  * @lock : Pointer to queued spinlock structure
20  */
queued_spin_unlock(struct qspinlock * lock)21 static inline void queued_spin_unlock(struct qspinlock *lock)
22 {
23 	/* This could be optimised with ARCH_HAS_MMIOWB */
24 	mmiowb();
25 	smp_store_release(&lock->locked, 0);
26 }
27 
28 #include <asm/qspinlock.h>
29 #include <asm/qrwlock.h>
30 
31 #endif /* _ASM_SPINLOCK_H */
32