From: Tuowen Zhao <ztuowen@gmail.com>
Date: Wed, 16 Oct 2019 15:06:27 -0600
Subject: sparc64: implement ioremap_uc
Git-commit: 38e45d81d14e5f78cd67922596b1c37b4c22ec74
Patch-mainline: 5.5-rc1
References: bnc#1151927 5.3.16

On sparc64, the whole physical IO address space is accessible using
physically addressed loads and stores. *_uc does nothing like the
others.

Cc: <stable@vger.kernel.org> # v4.19+
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Tuowen Zhao <ztuowen@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 arch/sparc/include/asm/io_64.h |    1 +
 1 file changed, 1 insertion(+)

--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -407,6 +407,7 @@ static inline void __iomem *ioremap(unsi
 }
 
 #define ioremap_nocache(X,Y)		ioremap((X),(Y))
+#define ioremap_uc(X,Y)			ioremap((X),(Y))
 #define ioremap_wc(X,Y)			ioremap((X),(Y))
 #define ioremap_wt(X,Y)			ioremap((X),(Y))