Messages in this thread Patch in this message | | | From | Byungchul Park <> | Subject | [PATCH v9 2/8] arm64: tlbflush: add APIs manipulating tlb batch's arch data | Date | Wed, 17 Apr 2024 16:18:41 +0900 |
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This is a preparation for migrc mechanism that requires to manipulate tlb batch's arch data. Even though arm64 does nothing for it, arch with CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH should provide the APIs.
Signed-off-by: Byungchul Park <byungchul@sk.com> --- arch/arm64/include/asm/tlbflush.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index a75de2665d84..b8c7fbc1c68e 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -347,6 +347,24 @@ static inline void arch_tlbbatch_flush(struct arch_tlbflush_unmap_batch *batch) dsb(ish); } +static inline void arch_tlbbatch_clear(struct arch_tlbflush_unmap_batch *batch) +{ + /* nothing to do */ +} + +static inline void arch_tlbbatch_fold(struct arch_tlbflush_unmap_batch *bdst, + struct arch_tlbflush_unmap_batch *bsrc) +{ + /* nothing to do */ +} + +static inline bool arch_tlbbatch_done(struct arch_tlbflush_unmap_batch *bdst, + struct arch_tlbflush_unmap_batch *bsrc) +{ + /* Kernel can consider tlb batch always has been done. */ + return true; +} + /* * This is meant to avoid soft lock-ups on large TLB flushing ranges and not * necessarily a performance improvement. -- 2.17.1
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