arm64: tlb: Introduce __tlbi_sync_s1ish_{kernel,batch}() for TLB maintenance

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Add __tlbi_sync_s1ish_kernel() similar to __tlbi_sync_s1ish() and use it
for kernel TLB maintenance. Also use this function in flush_tlb_all()
which is only used in relation to kernel mappings. Subsequent patches
can differentiate between workarounds that apply to user only or both
user and kernel.

A subsequent patch will add mm_struct to __tlbi_sync_s1ish(). Since
arch_tlbbatch_flush() is not specific to an mm, add a corresponding
__tlbi_sync_s1ish_batch() helper.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Will Deacon <will@kernel.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Catalin Marinas 2026-04-07 11:28:41 +01:00

parent 1f318b96cc

commit 6bfbf574a3

1 changed files with 16 additions and 4 deletions

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arch/arm64/include/asm/tlbflush.h

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