From 713a74624bba6c449213b6a7a2ab0065f6e2c7c9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 18 May 2018 15:14:28 +0200 Subject: [PATCH] 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 Tested-by: Alexey Brodkin Acked-by: Vineet Gupta --- arch/arc/mm/dma.c | 24 ++++++++++++------------ 1 file 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)