162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-or-later */
262306a36Sopenharmony_ci/* Generic task switch macro wrapper.
362306a36Sopenharmony_ci *
462306a36Sopenharmony_ci * It should be possible to use these on really simple architectures,
562306a36Sopenharmony_ci * but it serves more as a starting point for new ports.
662306a36Sopenharmony_ci *
762306a36Sopenharmony_ci * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
862306a36Sopenharmony_ci * Written by David Howells (dhowells@redhat.com)
962306a36Sopenharmony_ci */
1062306a36Sopenharmony_ci#ifndef __ASM_GENERIC_SWITCH_TO_H
1162306a36Sopenharmony_ci#define __ASM_GENERIC_SWITCH_TO_H
1262306a36Sopenharmony_ci
1362306a36Sopenharmony_ci#include <linux/thread_info.h>
1462306a36Sopenharmony_ci
1562306a36Sopenharmony_ci/*
1662306a36Sopenharmony_ci * Context switching is now performed out-of-line in switch_to.S
1762306a36Sopenharmony_ci */
1862306a36Sopenharmony_ciextern struct task_struct *__switch_to(struct task_struct *,
1962306a36Sopenharmony_ci				       struct task_struct *);
2062306a36Sopenharmony_ci
2162306a36Sopenharmony_ci#define switch_to(prev, next, last)					\
2262306a36Sopenharmony_ci	do {								\
2362306a36Sopenharmony_ci		((last) = __switch_to((prev), (next)));			\
2462306a36Sopenharmony_ci	} while (0)
2562306a36Sopenharmony_ci
2662306a36Sopenharmony_ci#endif /* __ASM_GENERIC_SWITCH_TO_H */
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