4e4f2d6d7e
LiteOS_a中有部分配置宏进行了重复冗余定义，导致当头文件未被包含时，极易引入错误， 故对menuconfig配置宏进行统一处理，均使用#ifdef/#ifndef作为预编译判断方式 Close #I3YEGS Change-Id: Ife6db770cc66de1d6199a4f3ba3950e9bfd0e71a Signed-off-by: boxi <lewis.liulei@huawei.com>
106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/*
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* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
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* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "los_spinlock.h"
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#ifdef LOSCFG_KERNEL_SMP
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#include "los_sched_pri.h"
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VOID LOS_SpinInit(SPIN_LOCK_S *lock)
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{
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lock->rawLock = 0;
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lock->cpuid = (UINT32)-1;
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lock->owner = SPINLOCK_OWNER_INIT;
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lock->name = "spinlock";
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}
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BOOL LOS_SpinHeld(const SPIN_LOCK_S *lock)
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{
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return (lock->rawLock != 0);
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}
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VOID LOS_SpinLock(SPIN_LOCK_S *lock)
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{
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UINT32 intSave = LOS_IntLock();
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OsCpuSchedLock(OsPercpuGet());
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LOS_IntRestore(intSave);
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LOCKDEP_CHECK_IN(lock);
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ArchSpinLock(&lock->rawLock);
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LOCKDEP_RECORD(lock);
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}
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INT32 LOS_SpinTrylock(SPIN_LOCK_S *lock)
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{
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Percpu *cpu = OsPercpuGet();
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UINT32 intSave = LOS_IntLock();
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OsCpuSchedLock(cpu);
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LOS_IntRestore(intSave);
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INT32 ret = ArchSpinTrylock(&lock->rawLock);
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if (ret == LOS_OK) {
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LOCKDEP_CHECK_IN(lock);
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LOCKDEP_RECORD(lock);
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} else {
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OsCpuSchedUnlock(cpu, LOS_IntLock());
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}
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return ret;
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}
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VOID LOS_SpinUnlock(SPIN_LOCK_S *lock)
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{
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LOCKDEP_CHECK_OUT(lock);
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ArchSpinUnlock(&lock->rawLock);
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OsCpuSchedUnlock(OsPercpuGet(), LOS_IntLock());
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}
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VOID LOS_SpinLockSave(SPIN_LOCK_S *lock, UINT32 *intSave)
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{
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*intSave = LOS_IntLock();
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OsCpuSchedLock(OsPercpuGet());
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LOCKDEP_CHECK_IN(lock);
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ArchSpinLock(&lock->rawLock);
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LOCKDEP_RECORD(lock);
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}
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VOID LOS_SpinUnlockRestore(SPIN_LOCK_S *lock, UINT32 intSave)
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{
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LOCKDEP_CHECK_OUT(lock);
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ArchSpinUnlock(&lock->rawLock);
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OsCpuSchedUnlock(OsPercpuGet(), intSave);
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}
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#endif
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