From 2c97a9cc35a7a73a7580a8e2632419ff3c0b0fe5 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 22 Feb 2019 18:04:54 +0000 Subject: arm64: io: Hook up __io_par() for inX() ordering Ensure that inX() provides the same ordering guarantees as readX() by hooking up __io_par() so that it maps directly to __iormb(). Reported-by: Andrew Murray Reviewed-by: Palmer Dabbelt Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/io.h | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm64/include/asm/io.h') diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h index ee723835c1f4..8bb7210ac286 100644 --- a/arch/arm64/include/asm/io.h +++ b/arch/arm64/include/asm/io.h @@ -121,6 +121,7 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) : "memory"); \ }) +#define __io_par(v) __iormb(v) #define __iowmb() wmb() #define mmiowb() do { } while (0) -- cgit v1.2.1