lkml.org 
[lkml]   [2014]   [Apr]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 07/18] cris: io: implement dummy relaxed accessor macros for writes
Date
write{b,w,l}_relaxed are implemented by some architectures in order to
permit memory-mapped I/O accesses with weaker barrier semantics than the
non-relaxed variants.

This patch adds dummy macros for the write accessors to Cris, in the same
vein as the dummy definitions for the relaxed read accessors.

Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
arch/cris/include/asm/io.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/cris/include/asm/io.h b/arch/cris/include/asm/io.h
index e59dba12ce94..752a3f45df60 100644
--- a/arch/cris/include/asm/io.h
+++ b/arch/cris/include/asm/io.h
@@ -112,6 +112,9 @@ static inline void writel(unsigned int b, volatile void __iomem *addr)
else
*(volatile unsigned int __force *) addr = b;
}
+#define writeb_relaxed(b, addr) writeb(b, addr)
+#define writew_relaxed(b, addr) writew(b, addr)
+#define writel_relaxed(b, addr) writel(b, addr)
#define __raw_writeb writeb
#define __raw_writew writew
#define __raw_writel writel
--
1.9.1


\
 
 \ /
  Last update: 2014-04-17 17:01    [W:0.225 / U:0.228 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site