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| author | Nicholas Piggin <npiggin@gmail.com> | 2020-09-02 00:15:19 +1000 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2020-10-26 16:45:05 +0100 |
| commit | 75e6a851d696218a446028ea10339f3039e47a35 (patch) | |
| tree | 80fd80fc706cef291503d596e5f5c673a5d433fa | |
| parent | 6dfc3f5bcbf53c46003b9c7387a6e51f5deac892 (diff) | |
| download | linux-75e6a851d696218a446028ea10339f3039e47a35.tar.gz linux-75e6a851d696218a446028ea10339f3039e47a35.tar.bz2 linux-75e6a851d696218a446028ea10339f3039e47a35.zip | |
arc: use asm-generic/mmu_context.h for no-op implementations
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: linux-snps-arc@lists.infradead.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| -rw-r--r-- | arch/arc/include/asm/mmu_context.h | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/arch/arc/include/asm/mmu_context.h b/arch/arc/include/asm/mmu_context.h index 3a5e6a5b9ed6..df164066e172 100644 --- a/arch/arc/include/asm/mmu_context.h +++ b/arch/arc/include/asm/mmu_context.h @@ -102,6 +102,7 @@ set_hw: * Initialize the context related info for a new mm_struct * instance. */ +#define init_new_context init_new_context static inline int init_new_context(struct task_struct *tsk, struct mm_struct *mm) { @@ -113,6 +114,7 @@ init_new_context(struct task_struct *tsk, struct mm_struct *mm) return 0; } +#define destroy_context destroy_context static inline void destroy_context(struct mm_struct *mm) { unsigned long flags; @@ -153,13 +155,13 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, } /* - * Called at the time of execve() to get a new ASID - * Note the subtlety here: get_new_mmu_context() behaves differently here - * vs. in switch_mm(). Here it always returns a new ASID, because mm has - * an unallocated "initial" value, while in latter, it moves to a new ASID, - * only if it was unallocated + * activate_mm defaults (in asm-generic) to switch_mm and is called at the + * time of execve() to get a new ASID Note the subtlety here: + * get_new_mmu_context() behaves differently here vs. in switch_mm(). Here + * it always returns a new ASID, because mm has an unallocated "initial" + * value, while in latter, it moves to a new ASID, only if it was + * unallocated */ -#define activate_mm(prev, next) switch_mm(prev, next, NULL) /* it seemed that deactivate_mm( ) is a reasonable place to do book-keeping * for retiring-mm. However destroy_context( ) still needs to do that because @@ -168,8 +170,7 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, * there is a good chance that task gets sched-out/in, making it's ASID valid * again (this teased me for a whole day). */ -#define deactivate_mm(tsk, mm) do { } while (0) -#define enter_lazy_tlb(mm, tsk) +#include <asm-generic/mmu_context.h> #endif /* __ASM_ARC_MMU_CONTEXT_H */ |