arch/sparc/include/asm/mmu_context_32.h

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