arm64: tlbflush: Allow stride to be specified for __flush_tlb_range()
When we are unmapping intermediate page-table entries or huge pages, we don't need to issue a TLBI instruction for every PAGE_SIZE chunk in the VA range being unmapped. Allow the invalidation stride to be passed to __flush_tlb_range(), and adjust our "just nuke the ASID" heuristic to take this into account. Acked-by:Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com>
parent
d8289d3a
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