68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/*
|
||
* 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 |