arch/riscv/include/asm/mmu_context.h

   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 */