diff mbox series

[PULL,07/10] lib: arm64: Add missing ISB in flush_tlb_page

Message ID 20191024130701.31238-8-drjones@redhat.com (mailing list archive)
State New, archived
Headers show
Series [PULL,01/10] arm: gic: check_acked: add test description | expand

Commit Message

Andrew Jones Oct. 24, 2019, 1:06 p.m. UTC 
From: Alexandru Elisei <alexandru.elisei@arm.com>

Linux commit d0b7a302d58a made it abundantly clear that certain CPU
implementations require an ISB after a DSB. Add the missing ISB to
flush_tlb_page. No changes are required for flush_tlb_all, as the function
already had the ISB.

Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
---
 lib/arm64/asm/mmu.h | 1 +
 1 file changed, 1 insertion(+)
diff mbox series

Patch

diff --git a/lib/arm64/asm/mmu.h b/lib/arm64/asm/mmu.h
index fa554b0c20ae..72d75eafc882 100644
--- a/lib/arm64/asm/mmu.h
+++ b/lib/arm64/asm/mmu.h
@@ -24,6 +24,7 @@  static inline void flush_tlb_page(unsigned long vaddr)
 	dsb(ishst);
 	asm("tlbi	vaae1is, %0" :: "r" (page));
 	dsb(ish);
+	isb();
 }
 
 static inline void flush_dcache_addr(unsigned long vaddr)