1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2012 Regents of the University of California
4*4882a593Smuzhiyun * Copyright (C) 2017 SiFive
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #ifndef _ASM_RISCV_MMU_CONTEXT_H
8*4882a593Smuzhiyun #define _ASM_RISCV_MMU_CONTEXT_H
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun #include <linux/mm_types.h>
11*4882a593Smuzhiyun #include <asm-generic/mm_hooks.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun #include <linux/mm.h>
14*4882a593Smuzhiyun #include <linux/sched.h>
15*4882a593Smuzhiyun
enter_lazy_tlb(struct mm_struct * mm,struct task_struct * task)16*4882a593Smuzhiyun static inline void enter_lazy_tlb(struct mm_struct *mm,
17*4882a593Smuzhiyun struct task_struct *task)
18*4882a593Smuzhiyun {
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun /* Initialize context-related info for a new mm_struct */
init_new_context(struct task_struct * task,struct mm_struct * mm)22*4882a593Smuzhiyun static inline int init_new_context(struct task_struct *task,
23*4882a593Smuzhiyun struct mm_struct *mm)
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun return 0;
26*4882a593Smuzhiyun }
27*4882a593Smuzhiyun
destroy_context(struct mm_struct * mm)28*4882a593Smuzhiyun static inline void destroy_context(struct mm_struct *mm)
29*4882a593Smuzhiyun {
30*4882a593Smuzhiyun }
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun void switch_mm(struct mm_struct *prev, struct mm_struct *next,
33*4882a593Smuzhiyun struct task_struct *task);
34*4882a593Smuzhiyun
activate_mm(struct mm_struct * prev,struct mm_struct * next)35*4882a593Smuzhiyun static inline void activate_mm(struct mm_struct *prev,
36*4882a593Smuzhiyun struct mm_struct *next)
37*4882a593Smuzhiyun {
38*4882a593Smuzhiyun switch_mm(prev, next, NULL);
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
deactivate_mm(struct task_struct * task,struct mm_struct * mm)41*4882a593Smuzhiyun static inline void deactivate_mm(struct task_struct *task,
42*4882a593Smuzhiyun struct mm_struct *mm)
43*4882a593Smuzhiyun {
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun #endif /* _ASM_RISCV_MMU_CONTEXT_H */
47