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
13int 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
21void destroy_context(struct mm_struct *mm);
22
23/* Switch the current MM context. */
24void 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) */

 
 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
 8static 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 */
 
15int 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 */
 
22void destroy_context(struct mm_struct *mm);
23
24/* Switch the current MM context. */
25void 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) */