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) */
37