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
16void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17	struct task_struct *task);
18
19#define activate_mm activate_mm
20static inline void activate_mm(struct mm_struct *prev,
21			       struct mm_struct *next)
22{
23	switch_mm(prev, next, NULL);
24}
25
26#define init_new_context init_new_context
27static inline int init_new_context(struct task_struct *tsk,
28			struct mm_struct *mm)
29{
30#ifdef CONFIG_MMU
31	atomic_long_set(&mm->context.id, 0);
32#endif
33	return 0;
34}
35
36DECLARE_STATIC_KEY_FALSE(use_asid_allocator);
37
38#include <asm-generic/mmu_context.h>
39
40#endif /* _ASM_RISCV_MMU_CONTEXT_H */
41