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 void switch_mm(struct mm_struct *prev, struct mm_struct *next,
17 struct task_struct *task);
18
19 #define activate_mm activate_mm
20 static 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
27 static 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
36 DECLARE_STATIC_KEY_FALSE(use_asid_allocator);
37
38 #include <asm-generic/mmu_context.h>
39
40 #endif /* _ASM_RISCV_MMU_CONTEXT_H */
41
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