18c2ecf20Sopenharmony_ci/* 28c2ecf20Sopenharmony_ci * This file is subject to the terms and conditions of the GNU General Public 38c2ecf20Sopenharmony_ci * License. See the file "COPYING" in the main directory of this archive 48c2ecf20Sopenharmony_ci * for more details. 58c2ecf20Sopenharmony_ci * 68c2ecf20Sopenharmony_ci * Copyright (C) 1999, 2000, 06 Ralf Baechle (ralf@linux-mips.org) 78c2ecf20Sopenharmony_ci * Copyright (C) 1999, 2000 Silicon Graphics, Inc. 88c2ecf20Sopenharmony_ci */ 98c2ecf20Sopenharmony_ci#ifndef _ASM_SPINLOCK_H 108c2ecf20Sopenharmony_ci#define _ASM_SPINLOCK_H 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci#include <asm/processor.h> 138c2ecf20Sopenharmony_ci#include <asm/qrwlock.h> 148c2ecf20Sopenharmony_ci 158c2ecf20Sopenharmony_ci#include <asm-generic/qspinlock_types.h> 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_ci#define queued_spin_unlock queued_spin_unlock 188c2ecf20Sopenharmony_ci/** 198c2ecf20Sopenharmony_ci * queued_spin_unlock - release a queued spinlock 208c2ecf20Sopenharmony_ci * @lock : Pointer to queued spinlock structure 218c2ecf20Sopenharmony_ci */ 228c2ecf20Sopenharmony_cistatic inline void queued_spin_unlock(struct qspinlock *lock) 238c2ecf20Sopenharmony_ci{ 248c2ecf20Sopenharmony_ci /* This could be optimised with ARCH_HAS_MMIOWB */ 258c2ecf20Sopenharmony_ci mmiowb(); 268c2ecf20Sopenharmony_ci smp_store_release(&lock->locked, 0); 278c2ecf20Sopenharmony_ci} 288c2ecf20Sopenharmony_ci 298c2ecf20Sopenharmony_ci#include <asm/qspinlock.h> 308c2ecf20Sopenharmony_ci 318c2ecf20Sopenharmony_ci#endif /* _ASM_SPINLOCK_H */ 32