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authorChristoph Hellwig <hch@lst.de>2018-05-18 15:14:28 +0200
committerChristoph Hellwig <hch@lst.de>2018-05-19 08:46:12 +0200
commit713a74624bba6c449213b6a7a2ab0065f6e2c7c9 (patch)
tree1346178d77cb9014b78f2fcff1a76b6b7eb002d4 /arch/arc/mm/dma.c
parent782e6769c0df744e773dc2acff71c974b3bba4e9 (diff)
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>
Diffstat (limited to 'arch/arc/mm/dma.c')
-rw-r--r--arch/arc/mm/dma.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c
index 1dcc404b5aec..98e21ce526be 100644
--- a/arch/arc/mm/dma.c
+++ b/arch/arc/mm/dma.c
@@ -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)