From fa7aae8a4257e6be7051420dac1f150c1eef721b Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Tue, 6 Oct 2015 18:46:22 +0100 Subject: [PATCH] arm64: proc: de-scope TLBI operation during cold boot When cold-booting a CPU, we must invalidate any junk entries from the local TLB prior to enabling the MMU. This doesn't require broadcasting within the inner-shareable domain, so de-scope the operation to apply only to the local CPU. Acked-by: Catalin Marinas Reviewed-by: Catalin Marinas Tested-by: Mark Rutland Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas --- arch/arm64/mm/proc.S | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index e4ee7bd8830a..bbde13d77da5 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -146,8 +146,8 @@ ENDPROC(cpu_do_switch_mm) * value of the SCTLR_EL1 register. */ ENTRY(__cpu_setup) - tlbi vmalle1is // invalidate I + D TLBs - dsb ish + tlbi vmalle1 // Invalidate local TLB + dsb nsh mov x0, #3 << 20 msr cpacr_el1, x0 // Enable FP/ASIMD -- 2.20.1