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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __RISCV_LOCKS_H__
#define __RISCV_LOCKS_H__
typedef struct {
volatile long lock;
} spinlock_t;
#define __RISCV_SPIN_UNLOCKED 0
#define SPIN_LOCK_INIT(_lptr) (_lptr)->lock = __RISCV_SPIN_UNLOCKED
#define SPIN_LOCK_INITIALIZER \
{ \
.lock = __RISCV_SPIN_UNLOCKED, \
}
int spin_lock_check(spinlock_t *lock);
int spin_trylock(spinlock_t *lock);
void spin_lock(spinlock_t *lock);
void spin_unlock(spinlock_t *lock);
#endif
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