LXR linux/arch/sparc/include/asm/mmu_context

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef __SPARC_MMU_CONTEXT_H
   3#define __SPARC_MMU_CONTEXT_H
   4
   5#ifndef __ASSEMBLY__
   6
   7#include <asm-generic/mm_hooks.h>
   8
   9static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
  10{
  11}
  12
  13/* Initialize a new mmu context.  This is invoked when a new
  14 * address space instance (unique or shared) is instantiated.
  15 */
  16int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
  17
  18/* Destroy a dead context.  This occurs when mmput drops the
  19 * mm_users count to zero, the mmaps have been released, and
  20 * all the page tables have been flushed.  Our job is to destroy
  21 * any remaining processor-specific state.
  22 */
  23void destroy_context(struct mm_struct *mm);
  24
  25/* Switch the current MM context. */
  26void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
  27               struct task_struct *tsk);
  28
  29#define deactivate_mm(tsk,mm)   do { } while (0)
  30
  31/* Activate a new MM instance for the current task. */
  32#define activate_mm(active_mm, mm) switch_mm((active_mm), (mm), NULL)
  33
  34#endif /* !(__ASSEMBLY__) */
  35
  36#endif /* !(__SPARC_MMU_CONTEXT_H) */
  37