/* Copyright (C) 2021,2022 fef <owo@fef.moe>.  All rights reserved. */

#pragma once
#define _ARCH_SCHED_H_

#include <arch/page.h>

#define KERN_STACK_PAGES 2
#define KERN_STACK_SHIFT (PAGE_SHIFT + KERN_STACK_PAGES - 1)
#define KERN_STACK_SIZE (1 << KERN_STACK_SHIFT)

#ifndef _ASM_SOURCE

#include <gay/cdefs.h>
#include <gay/types.h>

#ifdef __x86_64__
#include <amd64/sched.h>
#else
#include <i386/sched.h>
#endif

/**
 * @brief Arch dependent low level task switch routine (x86 version).
 * `new` must not be equal to `old` or the whole thing probably blows up.
 *
 * @param new TCB of the new task we are switching to
 * @param old TCB of the old task we are switching from
 */
extern void arch_switch_to(tcb_t *new, tcb_t *old);

#endif /* not _ASM_SOURCE */