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From: Tuowen Zhao <ztuowen@gmail.com>
To: lee.jones@linaro.org, linux-kernel@vger.kernel.org
Cc: andriy.shevchenko@linux.intel.com,
	mika.westerberg@linux.intel.com, acelan.kao@canonical.com,
	mcgrof@kernel.org, davem@davemloft.net,
	Tuowen Zhao <ztuowen@gmail.com>,
	kbuild test robot <lkp@intel.com>
Subject: [PATCH v5 1/4] sparc64: implement ioremap_uc
Date: Wed, 16 Oct 2019 15:06:27 -0600	[thread overview]
Message-ID: <20191016210629.1005086-2-ztuowen@gmail.com> (raw)
In-Reply-To: <20191016210629.1005086-1-ztuowen@gmail.com>

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>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Tuowen Zhao <ztuowen@gmail.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


  reply	other threads:[~2019-10-16 21:07 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-16 21:06 [PATCH v5 0/4] Fix MTRR bug for intel-lpss-pci Tuowen Zhao
2019-10-16 21:06 ` Tuowen Zhao [this message]
2019-10-16 21:20   ` [PATCH v5 1/4] sparc64: implement ioremap_uc David Miller
2019-10-28 20:46   ` Fwd: " Tuowen Zhao
2019-10-28 23:09     ` David Miller
2019-11-11  8:40     ` Fwd: " Lee Jones
2019-12-10  8:08   ` Geert Uytterhoeven
2019-10-16 21:06 ` [PATCH v5 2/4] lib: devres: add a helper function for ioremap_uc Tuowen Zhao
     [not found]   ` <20191017143144.9985421848@mail.kernel.org>
2019-10-17 17:49     ` Tuowen Zhao
2019-10-18 16:47       ` Sasha Levin
2019-12-04 15:51         ` Tuowen Zhao
2019-12-04 19:54           ` Andy Shevchenko
2019-12-04 20:06             ` Tuowen Zhao
2019-12-16 13:06           ` Greg KH
2019-12-16 18:02             ` Tuowen Zhao
2019-11-11  8:41   ` Lee Jones
2019-12-10  8:06     ` Geert Uytterhoeven
2019-12-10 12:50       ` Lee Jones
2019-10-16 21:06 ` [PATCH v5 3/4] mfd: intel-lpss: use devm_ioremap_uc for MMIO Tuowen Zhao
2019-10-22 19:01   ` Roman Gilg
2019-11-11  8:41   ` Lee Jones
2019-12-10  8:11   ` Geert Uytterhoeven
2019-10-16 21:06 ` [PATCH v5 4/4] docs: driver-model: add devm_ioremap_uc Tuowen Zhao
2019-10-23 11:26   ` Luis Chamberlain
2019-11-11  8:41   ` Lee Jones
2019-10-17  7:14 ` [PATCH v5 0/4] Fix MTRR bug for intel-lpss-pci Andy Shevchenko
2019-10-17  7:31   ` Lee Jones
2019-10-17  8:04     ` Andy Shevchenko
2019-10-17  8:22       ` Lee Jones
2019-10-17  9:52         ` Andy Shevchenko
2019-11-11  8:43 ` [GIT PULL] Immutable branch between MFD, Docs, Sparc and Lib Devres due for the v5.5 merge window Lee Jones

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