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Message-Id: <20191211150223.083344935@linuxfoundation.org>
Date:   Wed, 11 Dec 2019 16:04:56 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, kbuild test robot <lkp@...el.com>,
        Tuowen Zhao <ztuowen@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Lee Jones <lee.jones@...aro.org>
Subject: [PATCH 5.4 05/92] sparc64: implement ioremap_uc

From: Tuowen Zhao <ztuowen@...il.com>

commit 38e45d81d14e5f78cd67922596b1c37b4c22ec74 upstream.

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

Cc: <stable@...r.kernel.org> # v4.19+
Reported-by: kbuild test robot <lkp@...el.com>
Signed-off-by: Tuowen Zhao <ztuowen@...il.com>
Acked-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 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))
 


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