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