1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2012 Regents of the University of California
4  * Copyright (C) 2017 SiFive
5  */
6 
7 #ifndef _ASM_RISCV_MMU_CONTEXT_H
8 #define _ASM_RISCV_MMU_CONTEXT_H
9 
10 #include <linux/mm_types.h>
11 #include <asm-generic/mm_hooks.h>
12 
13 #include <linux/mm.h>
14 #include <linux/sched.h>
15 
16 static inline void enter_lazy_tlb(struct mm_struct *mm,
17 	struct task_struct *task)
18 {
19 }
20 
21 /* Initialize context-related info for a new mm_struct */
22 static inline int init_new_context(struct task_struct *task,
23 	struct mm_struct *mm)
24 {
25 	return 0;
26 }
27 
28 static inline void destroy_context(struct mm_struct *mm)
29 {
30 }
31 
32 void switch_mm(struct mm_struct *prev, struct mm_struct *next,
33 	struct task_struct *task);
34 
35 static inline void activate_mm(struct mm_struct *prev,
36 			       struct mm_struct *next)
37 {
38 	switch_mm(prev, next, NULL);
39 }
40 
41 static inline void deactivate_mm(struct task_struct *task,
42 	struct mm_struct *mm)
43 {
44 }
45 
46 #endif /* _ASM_RISCV_MMU_CONTEXT_H */
47