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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2013-01-16 15:48:50 +0200
committerVinod Koul <vinod.koul@intel.com>2013-01-20 20:49:21 -0800
commitf8122a82d2eae8ef42de48829deed0ca9d9e1f17 (patch)
treeade059660ab99a330c93dffa90e7e4f4972270af /drivers/dma/dw_dmac_regs.h
parent855372c013bbad8369223f7c75242bd3c94f9345 (diff)
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>
Diffstat (limited to 'drivers/dma/dw_dmac_regs.h')
-rw-r--r--drivers/dma/dw_dmac_regs.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/dma/dw_dmac_regs.h b/drivers/dma/dw_dmac_regs.h
index 577f2dd3588..fef296de4af 100644
--- a/drivers/dma/dw_dmac_regs.h
+++ b/drivers/dma/dw_dmac_regs.h
@@ -235,6 +235,7 @@ static inline struct dw_dma_chan *to_dw_dma_chan(struct dma_chan *chan)
struct dw_dma {
struct dma_device dma;
void __iomem *regs;
+ struct dma_pool *desc_pool;
struct tasklet_struct tasklet;
struct clk *clk;