Re: [PATCH v2 3/4] arm64/mm: Elide tlbi in contpte_convert() under BBML2

If we support bbml2 without conflict aborts, we can avoid the final
flush and have hardware manage the tlb entries for us. Avoiding flushes
is a win.

Signed-off-by: Mikołaj Lenczewski <redacted>
Reviewed-by: Ryan Roberts <ryan.roberts@arm.com>
---
  arch/arm64/mm/contpte.c | 3 ---
  1 file changed, 3 deletions(-)

diff --git a/arch/arm64/mm/contpte.c b/arch/arm64/mm/contpte.c
index 145530f706a9..77ed03b30b72 100644
--- a/arch/arm64/mm/contpte.c
+++ b/arch/arm64/mm/contpte.c

@@ -72,9 +72,6 @@ static void contpte_convert(struct mm_struct *mm, unsigned long addr,
  		__flush_tlb_range(&vma, start_addr, addr, PAGE_SIZE, true, 3);
  
  	__set_ptes(mm, start_addr, start_ptep, pte, CONT_PTES);
-
-	if (system_supports_bbml2_noabort())
-		__flush_tlb_range(&vma, start_addr, addr, PAGE_SIZE, true, 3);
  }
  
  void __contpte_try_fold(struct mm_struct *mm, unsigned long addr,