From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 16 Jan 2013 13:48:50 +0000 (+0200)
Subject: dw_dmac: allocate dma descriptors from DMA_COHERENT memory
X-Git-Tag: v3.9-rc1~80^2~28
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8122a82d2eae8ef42de48829deed0ca9d9e1f17;p=pandora-kernel.git

dw_dmac: allocate dma descriptors from DMA_COHERENT memory

Currently descriptors are allocated from normal cacheable memory and that slows
down filling the descriptors, as we need to call cache_coherency routines
afterwards. It would be better to allocate memory for these descriptors from
DMA_COHERENT memory. This would make code much cleaner too.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

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