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