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

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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>
This commit is contained in:
Will Deacon
2018-08-22 21:23:05 +01:00
committed by Catalin Marinas
parent a1f33941f7
commit 6899a4c82f
1 changed files with 1 additions and 1 deletions
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2
arch/arm64/include/asm/tlbflush.h
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@@ -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();
}