1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) 4 */ 5 6 #ifndef _ASM_ARC_SWITCH_TO_H 7 #define _ASM_ARC_SWITCH_TO_H 8 9 #ifndef __ASSEMBLY__ 10 11 #include <linux/sched.h> 12 #include <asm/fpu.h> 13 14 #ifdef CONFIG_ARC_PLAT_EZNPS 15 extern void dp_save_restore(struct task_struct *p, struct task_struct *n); 16 #define ARC_EZNPS_DP_PREV(p, n) dp_save_restore(p, n) 17 #else 18 #define ARC_EZNPS_DP_PREV(p, n) 19 20 #endif /* !CONFIG_ARC_PLAT_EZNPS */ 21 22 struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n); 23 24 #define switch_to(prev, next, last) \ 25 do { \ 26 ARC_EZNPS_DP_PREV(prev, next); \ 27 fpu_save_restore(prev, next); \ 28 last = __switch_to(prev, next);\ 29 mb(); \ 30 } while (0) 31 32 #endif 33 34 #endif 35