diff options
| author |   Will Deacon <will.deacon@arm.com> | 2013-09-03 18:56:46 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2014-10-20 18:49:17 +0100 |
| commit | 62e8abf7161b6a0dd32752cd7c60237988f8bff7 (patch) | |
| tree | 577c6de55965426ecaede9ef600d1b045b723a67 /arch/cris | |
| parent | frv: io: implement dummy relaxed accessor macros for writes (diff) | |
| download | linux-dev-62e8abf7161b6a0dd32752cd7c60237988f8bff7.tar.xz linux-dev-62e8abf7161b6a0dd32752cd7c60237988f8bff7.zip | |
cris: io: implement dummy relaxed accessor macros for writes
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>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/cris')
| -rw-r--r-- | arch/cris/include/asm/io.h | 3 |
1 files changed, 3 insertions, 0 deletions
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 |