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/*
* Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
* Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list
* of conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "los_smp.h"
#include "arch_config.h"
#include "los_atomic.h"
#include "los_task_pri.h"
#include "los_init_pri.h"
#include "los_process_pri.h"
#include "los_sched_pri.h"
#include "los_swtmr_pri.h"
#ifdef LOSCFG_KERNEL_SMP
STATIC struct SmpOps *g_smpOps = NULL;
/// 多核中次级CPU核初始化,每个核都会调用一次
STATIC VOID OsSmpSecondaryInit(VOID *arg)
{
UNUSED(arg);
OsInitCall(LOS_INIT_LEVEL_PLATFORM);
OsCurrProcessSet(OS_PCB_FROM_PID(OsGetKernelInitProcessID()));
OsInitCall(LOS_INIT_LEVEL_KMOD_BASIC);
#ifdef LOSCFG_BASE_CORE_SWTMR_ENABLE
OsSwtmrInit();
#endif
OsInitCall(LOS_INIT_LEVEL_KMOD_EXTENDED);
OsIdleTaskCreate();
OsInitCall(LOS_INIT_LEVEL_KMOD_TASK);
OsSchedStart();
}
/// 设置多核操作接口, 通过外部注册
VOID LOS_SmpOpsSet(struct SmpOps *ops)
{
g_smpOps = ops;
}
VOID OsSmpInit(VOID)
{
UINT32 cpuNum = 1; /* Start the secondary cpus. */
if (g_smpOps == NULL) {
PRINT_ERR("Must call the interface(LOS_SmpOpsSet) to register smp operations firstly!\n");
return;
}
for (; cpuNum < CORE_NUM; cpuNum++) {
HalArchCpuOn(cpuNum, OsSmpSecondaryInit, g_smpOps, 0);
}
return;
}
#endif