2005-04-16 22:20:36 +00:00
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#ifndef _ASM_IA64_DMA_MAPPING_H
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#define _ASM_IA64_DMA_MAPPING_H
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/*
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* Copyright (C) 2003-2004 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#include <asm/machvec.h>
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2007-10-16 09:27:26 +00:00
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#include <linux/scatterlist.h>
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2008-10-17 19:14:13 +00:00
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#include <asm/swiotlb.h>
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2009-01-05 14:59:02 +00:00
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extern struct dma_map_ops *dma_ops;
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2008-10-17 19:14:13 +00:00
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extern struct ia64_machine_vector ia64_mv;
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extern void set_iommu_machvec(void);
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2005-04-16 22:20:36 +00:00
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2009-01-05 14:36:13 +00:00
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static inline void *dma_alloc_coherent(struct device *dev, size_t size,
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dma_addr_t *daddr, gfp_t gfp)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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return ops->alloc_coherent(dev, size, daddr, gfp | GFP_DMA);
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2009-01-05 14:36:13 +00:00
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}
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2008-09-08 09:10:10 +00:00
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2009-01-05 14:36:13 +00:00
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static inline void dma_free_coherent(struct device *dev, size_t size,
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void *caddr, dma_addr_t daddr)
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2007-02-14 08:32:53 +00:00
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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ops->free_coherent(dev, size, caddr, daddr);
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2007-02-14 08:32:53 +00:00
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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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static inline dma_addr_t dma_map_single_attrs(struct device *dev,
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void *caddr, size_t size,
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enum dma_data_direction dir,
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struct dma_attrs *attrs)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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return ops->map_page(dev, virt_to_page(caddr),
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(unsigned long)caddr & ~PAGE_MASK, size,
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dir, attrs);
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}
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static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr,
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size_t size,
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enum dma_data_direction dir,
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struct dma_attrs *attrs)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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ops->unmap_page(dev, daddr, size, dir, attrs);
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2007-02-14 08:32:53 +00:00
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}
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#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL)
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#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL)
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static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
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int nents, enum dma_data_direction dir,
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struct dma_attrs *attrs)
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2008-04-29 08:00:32 +00:00
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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return ops->map_sg(dev, sgl, nents, dir, attrs);
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}
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static inline void dma_unmap_sg_attrs(struct device *dev,
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struct scatterlist *sgl, int nents,
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enum dma_data_direction dir,
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struct dma_attrs *attrs)
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{
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2009-01-05 14:59:02 +00:00
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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ops->unmap_sg(dev, sgl, nents, dir, attrs);
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}
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#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL)
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#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL)
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static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr,
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size_t size,
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enum dma_data_direction dir)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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ops->sync_single_for_cpu(dev, daddr, size, dir);
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}
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static inline void dma_sync_sg_for_cpu(struct device *dev,
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struct scatterlist *sgl,
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int nents, enum dma_data_direction dir)
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2008-04-29 08:00:32 +00:00
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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ops->sync_sg_for_cpu(dev, sgl, nents, dir);
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}
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static inline void dma_sync_single_for_device(struct device *dev,
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dma_addr_t daddr,
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size_t size,
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enum dma_data_direction dir)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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ops->sync_single_for_device(dev, daddr, size, dir);
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}
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static inline void dma_sync_sg_for_device(struct device *dev,
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struct scatterlist *sgl,
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int nents,
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enum dma_data_direction dir)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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ops->sync_sg_for_device(dev, sgl, nents, dir);
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}
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static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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return ops->mapping_error(dev, daddr);
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}
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2009-01-05 14:59:02 +00:00
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static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
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size_t offset, size_t size,
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enum dma_data_direction dir)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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return ops->map_page(dev, page, offset, size, dir, NULL);
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}
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static inline void dma_unmap_page(struct device *dev, dma_addr_t addr,
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size_t size, enum dma_data_direction dir)
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{
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dma_unmap_single(dev, addr, size, dir);
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}
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2005-04-16 22:20:36 +00:00
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/*
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* Rest of this file is part of the "Advanced DMA API". Use at your own risk.
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* See Documentation/DMA-API.txt for details.
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*/
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#define dma_sync_single_range_for_cpu(dev, dma_handle, offset, size, dir) \
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dma_sync_single_for_cpu(dev, dma_handle, size, dir)
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#define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \
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dma_sync_single_for_device(dev, dma_handle, size, dir)
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2009-01-05 14:36:13 +00:00
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static inline int dma_supported(struct device *dev, u64 mask)
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{
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struct dma_map_ops *ops = platform_dma_get_ops(dev);
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return ops->dma_supported(dev, mask);
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}
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static inline int
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dma_set_mask (struct device *dev, u64 mask)
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{
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if (!dev->dma_mask || !dma_supported(dev, mask))
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return -EIO;
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*dev->dma_mask = mask;
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return 0;
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}
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2005-11-07 08:57:54 +00:00
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extern int dma_get_cache_alignment(void);
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static inline void
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2006-12-07 04:38:56 +00:00
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dma_cache_sync (struct device *dev, void *vaddr, size_t size,
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enum dma_data_direction dir)
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{
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/*
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* IA-64 is cache-coherent, so this is mostly a no-op. However, we do need to
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* ensure that dma_cache_sync() enforces order, hence the mb().
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*/
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mb();
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}
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2006-12-07 04:38:54 +00:00
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#define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */
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2005-04-16 22:20:36 +00:00
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#endif /* _ASM_IA64_DMA_MAPPING_H */
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