Commit 6899a4c8 authored Aug 22, 2018 by Will Deacon Committed by Catalin Marinas Sep 11, 2018

arm64: tlb: Use last-level invalidation in flush_tlb_kernel_range()



flush_tlb_kernel_range() is only ever used to invalidate last-level
entries, so we can restrict the scope of the TLB invalidation
instruction.

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 a1f33941

arch/arm64/include/asm/tlbflush.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -199,7 +199,7 @@ static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end

		dsb(ishst);
		for (addr = start; addr < end; addr += 1 << (PAGE_SHIFT - 12))
		__tlbi(vaae1is, addr);
		__tlbi(vaale1is, addr);
		dsb(ish);
		isb();
		}

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