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https://github.com/edk2-porting/linux-next.git
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d3fa72e455
Pass struct dev pointer to dma_cache_sync() dma_cache_sync() is ill-designed in that it does not have a struct device pointer argument which makes proper support for systems that consist of a mix of coherent and non-coherent DMA devices hard. Change dma_cache_sync to take a struct device pointer as first argument and fix all its callers to pass it. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
122 lines
2.3 KiB
C
122 lines
2.3 KiB
C
#ifndef _ASM_DMA_MAPPING_H
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#define _ASM_DMA_MAPPING_H
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#include <asm/scatterlist.h>
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static inline int
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dma_supported(struct device *dev, u64 mask)
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{
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BUG();
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return(0);
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}
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static inline int
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dma_set_mask(struct device *dev, u64 dma_mask)
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{
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BUG();
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return(0);
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}
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static inline void *
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dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
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gfp_t flag)
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{
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BUG();
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return((void *) 0);
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}
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static inline void
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dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
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dma_addr_t dma_handle)
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{
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BUG();
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}
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static inline dma_addr_t
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dma_map_single(struct device *dev, void *cpu_addr, size_t size,
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enum dma_data_direction direction)
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{
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BUG();
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return(0);
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}
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static inline void
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dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
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enum dma_data_direction direction)
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{
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BUG();
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}
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static inline dma_addr_t
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dma_map_page(struct device *dev, struct page *page,
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unsigned long offset, size_t size,
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enum dma_data_direction direction)
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{
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BUG();
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return(0);
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}
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static inline void
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dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
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enum dma_data_direction direction)
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{
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BUG();
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}
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static inline int
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dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
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enum dma_data_direction direction)
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{
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BUG();
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return(0);
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}
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static inline void
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dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
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enum dma_data_direction direction)
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{
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BUG();
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}
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static inline void
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dma_sync_single(struct device *dev, dma_addr_t dma_handle, size_t size,
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enum dma_data_direction direction)
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{
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BUG();
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}
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static inline void
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dma_sync_sg(struct device *dev, struct scatterlist *sg, int nelems,
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enum dma_data_direction direction)
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{
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BUG();
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}
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#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
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#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
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#define dma_is_consistent(d, h) (1)
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static inline int
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dma_get_cache_alignment(void)
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{
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BUG();
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return(0);
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}
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static inline void
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dma_sync_single_range(struct device *dev, dma_addr_t dma_handle,
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unsigned long offset, size_t size,
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enum dma_data_direction direction)
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{
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BUG();
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}
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static inline void
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dma_cache_sync(struct device *dev, void *vaddr, size_t size,
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enum dma_data_direction direction)
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{
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BUG();
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}
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#endif
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