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/*
* Copyright : (C) 2022 Phytium Information Technology, Inc.
* All Rights Reserved.
*
* This program is OPEN SOURCE software: you can redistribute it and/or modify it
* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
* either version 1.0 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Phytium Public License for more details.
*
*
* FilePath: fsmp.c
* Date: 2022-02-10 14:53:42
* LastEditTime: 2022-02-17 17:58:14
* Description: This files is for a way to provide spinlocks for multicore operations
*
* Modify History:
* Ver Who Date Changes
* ----- ------ -------- --------------------------------------
* v1.1 carl 2022-12-30 add init function
* v1.2 cark 2023-02-28 Use GCC built-in functions to implement spinlock
*/
#if 0
#include "fsmp.h"
#include "sdkconfig.h"
#include "ftypes.h"
#include "fatomic.h"
typedef struct
{
int v;
}FCpuLock;
#ifdef CONFIG_SPIN_MEM
FCpuLock *_lock = (FCpuLock *)CONFIG_SPIN_MEM;
#else
FCpuLock _static_lock ;
FCpuLock *_lock = &_static_lock ;
#endif
void SpinUnlock(void)
{
FATOMIC_UNLOCK(_lock->v);
}
void SpinLock(void)
{
while(FATOMIC_LOCK(_lock->v,1))
{
}
}
void SpinInit(void)
{
FATOMIC_UNLOCK(_lock->v);
}
#endif
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