Messages in this thread Patch in this message | | | From | Will Deacon <> | Subject | [PATCH v2 12/18] parisc: io: implement dummy relaxed accessor macros for writes | Date | Thu, 22 May 2014 17:47:24 +0100 |
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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 parisc, in the same vein as the dummy definitions for the relaxed read accessors.
Cc: Helge Deller <deller@gmx.de> Signed-off-by: Will Deacon <will.deacon@arm.com> --- arch/parisc/include/asm/io.h | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h index 1f6d2ae7aba5..8cd0abf28ffb 100644 --- a/arch/parisc/include/asm/io.h +++ b/arch/parisc/include/asm/io.h @@ -217,10 +217,14 @@ static inline void writeq(unsigned long long q, volatile void __iomem *addr) #define writel writel #define writeq writeq -#define readb_relaxed(addr) readb(addr) -#define readw_relaxed(addr) readw(addr) -#define readl_relaxed(addr) readl(addr) -#define readq_relaxed(addr) readq(addr) +#define readb_relaxed(addr) readb(addr) +#define readw_relaxed(addr) readw(addr) +#define readl_relaxed(addr) readl(addr) +#define readq_relaxed(addr) readq(addr) +#define writeb_relaxed(b, addr) writeb(b, addr) +#define writew_relaxed(w, addr) writew(w, addr) +#define writel_relaxed(l, addr) writel(l, addr) +#define writeq_relaxed(q, addr) writeq(q, addr) #define mmiowb() do { } while (0) -- 1.9.2
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