forked from xuos/xiuos
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file spinlock.h
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* @brief spinlock header
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* @version 3.0
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* @author AIIT XUOS Lab
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* @date 2023.08.25
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*/
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/*************************************************
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File name: spinlock.h
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Description: spinlock header
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Others:
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History:
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1. Date: 2023-08-28
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Author: AIIT XUOS Lab
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Modification:
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1. first version
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*************************************************/
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#define STACK_DEPTH 32
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struct spinlock { // Mutex.
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volatile uint32_t owner_cpu; // 1 for locked, 0 for unlocked
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char name[28]; // The call stack (an array of program counters)
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} __attribute__((aligned(32)));
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bool module_spinlock_use_intr_init(void);
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void spinlock_init(struct spinlock* lock, char* name);
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void spinlock_lock(struct spinlock* lock);
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void spinlock_unlock(struct spinlock* lock);
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bool spinlock_try_lock(struct spinlock* lock);
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bool is_spinlock_hold_by_current_cpu(struct spinlock* lock); |