linux-kernel - [PATCH v5 1/4] sparc64: implement ioremap

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Message-Id: <20191016210629.1005086-2-ztuowen@gmail.com>
Date:   Wed, 16 Oct 2019 15:06:27 -0600
From:   Tuowen Zhao <ztuowen@...il.com>
To:     lee.jones@...aro.org, linux-kernel@...r.kernel.org
Cc:     andriy.shevchenko@...ux.intel.com, mika.westerberg@...ux.intel.com,
        acelan.kao@...onical.com, mcgrof@...nel.org, davem@...emloft.net,
        Tuowen Zhao <ztuowen@...il.com>,
        kbuild test robot <lkp@...el.com>
Subject: [PATCH v5 1/4] sparc64: implement ioremap_uc

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>
Reported-by: kbuild test robot <lkp@...el.com>
Signed-off-by: Tuowen Zhao <ztuowen@...il.com>
---
 arch/sparc/include/asm/io_64.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 688911051b44..f4afa301954a 100644
--- 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(unsigned long offset, unsigned long size)
 }
 
 #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))
 
-- 
2.23.0