c186caca3d
This converts Alpha to use include/linux/pci-dma-compat.h. Alpha is the only architecutre that implements the PCI DMA API in the own way. That makes it difficult to implement the generic DMA API via the PCI bus specific DMA API. The generic DMA API calls the PCI DMA API implementation in arch/alpha/kernel/pci_iommu.c on non Jensen systems. It calls the DMA API in arch/alpha/kernel/pci-noop.c on Jensen systems. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Greg KH <greg@kroah.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
49 lines
1.3 KiB
C
49 lines
1.3 KiB
C
#ifndef _ALPHA_DMA_MAPPING_H
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#define _ALPHA_DMA_MAPPING_H
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#include <linux/dma-attrs.h>
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extern struct dma_map_ops *dma_ops;
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static inline struct dma_map_ops *get_dma_ops(struct device *dev)
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{
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return dma_ops;
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}
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#include <asm-generic/dma-mapping-common.h>
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static inline void *dma_alloc_coherent(struct device *dev, size_t size,
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dma_addr_t *dma_handle, gfp_t gfp)
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{
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return get_dma_ops(dev)->alloc_coherent(dev, size, dma_handle, gfp);
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}
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static inline void dma_free_coherent(struct device *dev, size_t size,
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void *vaddr, dma_addr_t dma_handle)
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{
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get_dma_ops(dev)->free_coherent(dev, size, vaddr, dma_handle);
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}
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static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
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{
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return get_dma_ops(dev)->mapping_error(dev, dma_addr);
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}
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static inline int dma_supported(struct device *dev, u64 mask)
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{
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return get_dma_ops(dev)->dma_supported(dev, mask);
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}
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static inline int dma_set_mask(struct device *dev, u64 mask)
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{
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return get_dma_ops(dev)->set_dma_mask(dev, mask);
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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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#define dma_cache_sync(dev, va, size, dir) ((void)0)
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#define dma_get_cache_alignment() L1_CACHE_BYTES
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#endif /* _ALPHA_DMA_MAPPING_H */
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