1 /* SPDX-License-Identifier: GPL-2.0 */
2
3 #ifndef __ASM_CSKY_SWITCH_TO_H
4 #define __ASM_CSKY_SWITCH_TO_H
5
6 #include <linux/thread_info.h>
7 #ifdef CONFIG_CPU_HAS_FPU
8 #include <abi/fpu.h>
9 static inline void __switch_to_fpu(struct task_struct *prev,
10 struct task_struct *next)
11 {
12 save_to_user_fp(&prev->thread.user_fp);
13 restore_from_user_fp(&next->thread.user_fp);
14 }
15 #else
16 static inline void __switch_to_fpu(struct task_struct *prev,
17 struct task_struct *next)
18 {}
19 #endif
20
21 /*
22 * Context switching is now performed out-of-line in switch_to.S
23 */
24 extern struct task_struct *__switch_to(struct task_struct *,
25 struct task_struct *);
26
27 #define switch_to(prev, next, last) \
28 do { \
29 struct task_struct *__prev = (prev); \
30 struct task_struct *__next = (next); \
31 __switch_to_fpu(__prev, __next); \
32 ((last) = __switch_to((prev), (next))); \
33 } while (0)
34
35 #endif /* __ASM_CSKY_SWITCH_TO_H */
36
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