forked from xuos/xiuos
108 lines
2.9 KiB
C
108 lines
2.9 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: xs_service.h
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* @brief: maroc and switch table definition of kernel switch
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* @version: 1.0
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* @author: AIIT XUOS Lab
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* @date: 2020/3/2
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*
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*/
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#ifndef XS_SPINLOCK_H
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#define XS_SPINLOCK_H
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#include <xs_isr.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef ARCH_SMP
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typedef union
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{
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unsigned long slock;
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struct __arch_tickets
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{
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unsigned short owner;
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unsigned short next;
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} tickets;
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} HwSpinlock;
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struct SpinLock
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{
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HwSpinlock lock;
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};
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struct SpinLockfileOps
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{ //define spin lock
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struct SpinLock node_lock; //last spin lock node struct
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void (*SPinLock)(struct SpinLockfileOps *spinlock);
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void (*UnlockSpinLock)(struct SpinLockfileOps *spinlock);
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void (*UnlockSpinLockIrqRestore)(struct SpinLockfileOps *spinlock, x_base level);
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x_base (*SpinLockIrqSave)(struct SpinLockfileOps *spinlock);
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};
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extern struct SpinLockfileOps spinlock;
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extern HwSpinlock _CriticalLock;
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void InitHwSpinlock(HwSpinlock *lock);
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void HwLockSpinlock(HwSpinlock *lock);
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void HwUnlockSpinlock(HwSpinlock *lock);
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int GetCpuId(void);
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#define HW_SPIN_LOCK_INITIALIZER(lockname) {0}
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#define HW_SPIN_LOCK_UNLOCKED(lockname) (HwSpinlock) HW_SPIN_LOCK_INITIALIZER(lockname)
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#define DEFINE_SPINLOCK(x) HwSpinlock x = HW_SPIN_LOCK_UNLOCKED(x)
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#define DECLARE_SPINLOCK(x)
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void StartupSecondaryCpu(void);
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void ExecSecondaryCpuIdleKtask(void);
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#else
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#define HwLockSpinlock(lock) *(lock) = DISABLE_INTERRUPT()
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#define HwUnlockSpinlock(lock) ENABLE_INTERRUPT(*(lock))
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#endif
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#ifdef ARCH_SMP
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struct SpinLock;
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void InitSpinLock(struct SpinLockfileOps * spinlock);
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void _SpinLock(struct SpinLockfileOps * spinlock);
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void _UnlockSpinLock(struct SpinLockfileOps * spinlock);
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x_base _SpinLockIrqSave(struct SpinLockfileOps * spinlock);
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void _UnlockSpinLockIrqRestore(struct SpinLockfileOps * spinlock, x_base level);
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#else
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#define InitSpinLock(lock) /* nothing */
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#define SpinLock(lock) CriticalAreaLock()
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#define UnlockSpinLock(lock) CriticalAreaUnLock()
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#define SpinLockIrqSave(lock) DISABLE_INTERRUPT()
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#define UnlockSpinLockIrqRestore(lock, level) ENABLE_INTERRUPT(level)
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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