1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-or-later */ 2*4882a593Smuzhiyun /* Generic task switch macro wrapper. 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * It should be possible to use these on really simple architectures, 5*4882a593Smuzhiyun * but it serves more as a starting point for new ports. 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. 8*4882a593Smuzhiyun * Written by David Howells (dhowells@redhat.com) 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun #ifndef __ASM_GENERIC_SWITCH_TO_H 11*4882a593Smuzhiyun #define __ASM_GENERIC_SWITCH_TO_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <linux/thread_info.h> 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* 16*4882a593Smuzhiyun * Context switching is now performed out-of-line in switch_to.S 17*4882a593Smuzhiyun */ 18*4882a593Smuzhiyun extern struct task_struct *__switch_to(struct task_struct *, 19*4882a593Smuzhiyun struct task_struct *); 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun #define switch_to(prev, next, last) \ 22*4882a593Smuzhiyun do { \ 23*4882a593Smuzhiyun ((last) = __switch_to((prev), (next))); \ 24*4882a593Smuzhiyun } while (0) 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun #endif /* __ASM_GENERIC_SWITCH_TO_H */ 27