When changing a translation table entry, we already use all the necessary
barriers. Remove them from the flush_tlb_{page,all} functions.
We don't touch the arm versions of the TLB operations because they had no
barriers before the TLBIs to begin with.
Signed-off-by: Alexandru Elisei <alexandru.elisei@xxxxxxx>
---
lib/arm64/asm/mmu.h | 2 --
1 file changed, 2 deletions(-)
diff --git a/lib/arm64/asm/mmu.h b/lib/arm64/asm/mmu.h
index 72d75eafc882..5d6d49036a06 100644
--- a/lib/arm64/asm/mmu.h
+++ b/lib/arm64/asm/mmu.h
@@ -12,7 +12,6 @@
static inline void flush_tlb_all(void)
{
- dsb(ishst);
asm("tlbi vmalle1is");
dsb(ish);
isb();
@@ -21,7 +20,6 @@ static inline void flush_tlb_all(void)
static inline void flush_tlb_page(unsigned long vaddr)
{
unsigned long page = vaddr >> 12;
- dsb(ishst);
asm("tlbi vaae1is, %0" :: "r" (page));
dsb(ish);
isb();
--
2.20.1
