Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 1 | #ifndef __SPARC_MMU_CONTEXT_H |
| 2 | #define __SPARC_MMU_CONTEXT_H |
| 3 | |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 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 | |
Sam Ravnborg | b585e85 | 2012-07-26 11:02:24 +0000 | [diff] [blame^] | 12 | /* Initialize a new mmu context. This is invoked when a new |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 13 | * address space instance (unique or shared) is instantiated. |
| 14 | */ |
Sam Ravnborg | b585e85 | 2012-07-26 11:02:24 +0000 | [diff] [blame^] | 15 | int init_new_context(struct task_struct *tsk, struct mm_struct *mm); |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 16 | |
Sam Ravnborg | b585e85 | 2012-07-26 11:02:24 +0000 | [diff] [blame^] | 17 | /* Destroy a dead context. This occurs when mmput drops the |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 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 | */ |
Sam Ravnborg | b796c6d | 2012-05-13 10:30:54 +0200 | [diff] [blame] | 22 | void destroy_context(struct mm_struct *mm); |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 23 | |
| 24 | /* Switch the current MM context. */ |
Sam Ravnborg | 34d4acc | 2012-05-12 08:04:11 +0000 | [diff] [blame] | 25 | void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, |
| 26 | struct task_struct *tsk); |
Sam Ravnborg | f5e706a | 2008-07-17 21:55:51 -0700 | [diff] [blame] | 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) */ |