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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: Christoph Hellwig <hch@lst.de>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Christoph Hellwig 2018-05-18 15:14:28 +02:00
parent 782e6769c0
commit 713a74624b
1 changed files with 12 additions and 12 deletions
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24
arch/arc/mm/dma.c
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@ -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)