| Vineet Gupta | bf90e1e | 2013-01-18 15:12:18 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * published by the Free Software Foundation. |
| 7 | */ |
| 8 | |
| 9 | #ifndef _ASM_ARC_SWITCH_TO_H |
| 10 | #define _ASM_ARC_SWITCH_TO_H |
| 11 | |
| 12 | #ifndef __ASSEMBLY__ |
| 13 | |
| 14 | #include <linux/sched.h> |
| 15 | |
| 16 | #ifdef CONFIG_ARC_FPU_SAVE_RESTORE |
| 17 | |
| 18 | extern void fpu_save_restore(struct task_struct *p, struct task_struct *n); |
| 19 | #define ARC_FPU_PREV(p, n) fpu_save_restore(p, n) |
| 20 | #define ARC_FPU_NEXT(t) |
| 21 | |
| 22 | #else |
| 23 | |
| 24 | #define ARC_FPU_PREV(p, n) |
| 25 | #define ARC_FPU_NEXT(n) |
| 26 | |
| 27 | #endif /* !CONFIG_ARC_FPU_SAVE_RESTORE */ |
| 28 | |
| 29 | struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n); |
| 30 | |
| 31 | #define switch_to(prev, next, last) \ |
| 32 | do { \ |
| 33 | ARC_FPU_PREV(prev, next); \ |
| 34 | last = __switch_to(prev, next);\ |
| 35 | ARC_FPU_NEXT(next); \ |
| 36 | mb(); \ |
| 37 | } while (0) |
| 38 | |
| 39 | #endif |
| 40 | |
| 41 | #endif |