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 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 */