Commit 713a7462 authored by Christoph Hellwig's avatar Christoph Hellwig
Browse files

arc: simplify arc_dma_sync_single_for_{cpu,device} 



Remove the indirection through _dma_cache_sync.  Also move the functions
up a bit in the source file as we'll need them in more places soon.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Tested-by: default avatarAlexey Brodkin <abrodkin@synopsys.com>
Acked-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 782e6769

arch/arc/mm/dma.c

+12 −12
Original line number Diff line number Diff line
@@ -153,6 +153,18 @@ static void _dma_cache_sync(phys_addr_t paddr, size_t size, 
	}

}



static void arc_dma_sync_single_for_device(struct device *dev,

		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)

{

	dma_cache_wback(dma_handle, size);

}



static void arc_dma_sync_single_for_cpu(struct device *dev,

		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)

{

	dma_cache_inv(dma_handle, size);

}



/*

 * arc_dma_map_page - map a portion of a page for streaming DMA

 *
@@ -221,18 +233,6 @@ static void arc_dma_unmap_sg(struct device *dev, struct scatterlist *sg, 
				   attrs);

}



static void arc_dma_sync_single_for_cpu(struct device *dev,

		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)

{

	_dma_cache_sync(dma_handle, size, DMA_FROM_DEVICE);

}



static void arc_dma_sync_single_for_device(struct device *dev,

		dma_addr_t dma_handle, size_t size, enum dma_data_direction dir)

{

	_dma_cache_sync(dma_handle, size, DMA_TO_DEVICE);

}



static void arc_dma_sync_sg_for_cpu(struct device *dev,

		struct scatterlist *sglist, int nelems,

		enum dma_data_direction dir)

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