From b4bbb107d73bbc0d92c9ae7fd8e69580aa9381e7 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 27 Jun 2014 11:56:58 +0200
Subject: [PATCH] dma-mapping: Provide write-combine allocations

Provide an implementation for dma_{alloc,free,mmap}_writecombine() when
the architecture supports DMA attributes.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
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