/*
 * Copyright (C) 2021 xiaoliang<1296283984@qq.com>.
 */

#ifndef __ARCH_ASM_INLINE_GCC_H__
#define __ARCH_ASM_INLINE_GCC_H__

#include <bases.h>

static force_inline int irq_lock(void)
{
    int key;

    __asm volatile("mrs %0, PRIMASK;"
        "cpsid i"
        : "=r" (key)
        :
        : "memory");

    return key;
}

static force_inline void irq_unlock(int key)
{
    if (key) {
        return;
    }
    __asm__ volatile(
        "cpsie i;"
        "isb"
        : : : "memory");
}

#endif /* __ARCH_ASM_INLINE_GCC_H__ */