arch/sparc/include/asm/mmu_context_32.h

   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
   9 static 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  */
  16 int 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  */
  23 void destroy_context(struct mm_struct *mm);
  24
  25 /* Switch the current MM context. */
  26 void 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) */