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@ -1,62 +1,3 @@
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/*!
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* @file los_mp.c
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* @brief
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* @link
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* @verbatim
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多CPU核的操作系统3种处理模式(SMP+AMP+BMP) 鸿蒙实现的是 SMP 的方式
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非对称多处理(Asymmetric multiprocessing,AMP)每个CPU内核
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运行一个独立的操作系统或同一操作系统的独立实例(instantiation)。
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对称多处理(Symmetric multiprocessing,SMP)一个操作系统的实例
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可以同时管理所有CPU内核,且应用并不绑定某一个内核。
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混合多处理(Bound multiprocessing,BMP)一个操作系统的实例可以
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同时管理所有CPU内核,但每个应用被锁定于某个指定的核心。
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多核多线程处理器的中断
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由 PIC(Programmable Interrupt Controller)统一控制。PIC 允许一个
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硬件线程中断其他的硬件线程,这种方式被称为核间中断(Inter-Processor Interrupts,IPI)
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SGI:软件触发中断(Software Generated Interrupt)。在arm处理器中,
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SGI共有16个,硬件中断号分别为ID0~ID15。它通常用于多核间通讯。
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* @endverbatim
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* @version
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* @author weharmonyos.com | 鸿蒙研究站 | 每天死磕一点点
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* @date 2021-11-18
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*
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* @history
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*
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*/
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/*
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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_mp.h"
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#include "los_mp.h"
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#include "los_init.h"
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#include "los_init.h"
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