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/dsp-impl.h> 13 #include <asm/fpu.h> 14 15 #ifdef CONFIG_ARC_PLAT_EZNPS 16 extern void dp_save_restore(struct task_struct *p, struct task_struct *n); 17 #define ARC_EZNPS_DP_PREV(p, n) dp_save_restore(p, n) 18 #else 19 #define ARC_EZNPS_DP_PREV(p, n) 20 21 #endif /* !CONFIG_ARC_PLAT_EZNPS */ 22 23 struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n); 24 25 #define switch_to(prev, next, last) \ 26 do { \ 27 ARC_EZNPS_DP_PREV(prev, next); \ 28 dsp_save_restore(prev, next); \ 29 fpu_save_restore(prev, next); \ 30 last = __switch_to(prev, next);\ 31 mb(); \ 32 } while (0) 33 34 #endif 35 36 #endif 37