From c9eb6172c328dde7e14812f94f8da87b691e41b5 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 27 Aug 2017 10:37:15 +0200 Subject: dma-mapping: turn dma_cache_sync into a dma_map_ops method After we removed all the dead wood it turns out only two architectures actually implement dma_cache_sync as a real op: mips and parisc. Add a cache_sync method to struct dma_map_ops and implement it for the mips defualt DMA ops, and the parisc pa11 ops. Note that arm, arc and openrisc support DMA_ATTR_NON_CONSISTENT, but never provided a functional dma_cache_sync implementations, which seems somewhat odd. Signed-off-by: Christoph Hellwig Reviewed-by: Robin Murphy --- arch/parisc/include/asm/dma-mapping.h | 8 -------- 1 file changed, 8 deletions(-) (limited to 'arch/parisc/include') diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h index 2b16282add69..cb26bbd71d8a 100644 --- a/arch/parisc/include/asm/dma-mapping.h +++ b/arch/parisc/include/asm/dma-mapping.h @@ -32,14 +32,6 @@ static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) return hppa_dma_ops; } -static inline void -dma_cache_sync(struct device *dev, void *vaddr, size_t size, - enum dma_data_direction direction) -{ - if (hppa_dma_ops->sync_single_for_cpu) - flush_kernel_dcache_range((unsigned long)vaddr, size); -} - static inline void * parisc_walk_tree(struct device *dev) { -- cgit v1.2.3-59-g8ed1b