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A couple of dma-mapping updates:

Browse source 
- turn dma_cache_sync into a dma_map_ops instance and remove
    implementation that purely are dead because the architecture
    doesn't support noncoherent allocations
  - add a flag for busses that need DMA configuration (Robin Murphy)
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Merge tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - turn dma_cache_sync into a dma_map_ops instance and remove
   implementation that purely are dead because the architecture doesn't
   support noncoherent allocations

 - add a flag for busses that need DMA configuration (Robin Murphy)

* tag 'dma-mapping-4.15' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: turn dma_cache_sync into a dma_map_ops method
  sh: make dma_cache_sync a no-op
  xtensa: make dma_cache_sync a no-op
  unicore32: make dma_cache_sync a no-op
  powerpc: make dma_cache_sync a no-op
  mn10300: make dma_cache_sync a no-op
  microblaze: make dma_cache_sync a no-op
  ia64: make dma_cache_sync a no-op
  frv: make dma_cache_sync a no-op
  x86: make dma_cache_sync a no-op
  floppy: consolidate the dummy fd_cacheflush definition
  drivers: flag buses which demand DMA configuration
This commit is contained in:
Linus Torvalds 2017-11-14 16:54:12 -08:00
commit e37e0ee019
42 changed files with 71 additions and 250 deletions
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9
arch/tile/include/asm/dma-mapping.h
View file

@ -67,13 +67,4 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
#define HAVE_ARCH_DMA_SET_MASK 1
int dma_set_mask(struct device *dev, u64 mask);
/*
* dma_alloc_attrs() always returns non-cacheable memory, so there's no need to
* do any flushing here.
*/
static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
enum dma_data_direction direction)
{
}
#endif /* _ASM_TILE_DMA_MAPPING_H */