powerpc: io: implement dummy relaxed accessor macros for writes

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write{b,w,l,q}_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 powerpc, in the
same vein as the dummy definitions for the relaxed read accessors.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>

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This commit is contained in:

Will Deacon 2013-09-04 11:34:08 +01:00

parent 2f083481cf

commit 5da590574c

1 changed files with 8 additions and 4 deletions

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arch/powerpc/include/asm/io.h

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