Release 4.8 arch/tile/include/asm/dma-mapping.h
/*
* Copyright 2010 Tilera Corporation. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
* NON INFRINGEMENT. See the GNU General Public License for
* more details.
*/
#ifndef _ASM_TILE_DMA_MAPPING_H
#define _ASM_TILE_DMA_MAPPING_H
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include <linux/cache.h>
#include <linux/io.h>
#ifdef __tilegx__
#define ARCH_HAS_DMA_GET_REQUIRED_MASK
#endif
extern struct dma_map_ops *tile_dma_map_ops;
extern struct dma_map_ops *gx_pci_dma_map_ops;
extern struct dma_map_ops *gx_legacy_pci_dma_map_ops;
extern struct dma_map_ops *gx_hybrid_pci_dma_map_ops;
static inline struct dma_map_ops *get_dma_ops(struct device *dev)
{
if (dev && dev->archdata.dma_ops)
return dev->archdata.dma_ops;
else
return tile_dma_map_ops;
}
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| chris metcalf | chris metcalf | 35 | 100.00% | 2 | 100.00% |
| Total | 35 | 100.00% | 2 | 100.00% |
static inline dma_addr_t get_dma_offset(struct device *dev)
{
return dev->archdata.dma_offset;
}
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static inline void set_dma_offset(struct device *dev, dma_addr_t off)
{
dev->archdata.dma_offset = off;
}
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static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
{
return paddr;
}
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static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
{
return daddr;
}
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static inline void dma_mark_clean(void *addr, size_t size) {}
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static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
{
dev->archdata.dma_ops = ops;
}
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static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
{
if (!dev->dma_mask)
return 0;
return addr + size - 1 <= *dev->dma_mask;
}
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| chris metcalf | chris metcalf | 35 | 87.50% | 2 | 66.67% |
| james hogan | james hogan | 5 | 12.50% | 1 | 33.33% |
| Total | 40 | 100.00% | 3 | 100.00% |
#define HAVE_ARCH_DMA_SET_MASK 1
int dma_set_mask(struct device *dev, u64 mask);
/*
* dma_alloc_noncoherent() is #defined to return coherent 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)
{
}
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#endif /* _ASM_TILE_DMA_MAPPING_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| chris metcalf | chris metcalf | 274 | 96.48% | 4 | 57.14% |
| christoph hellwig | christoph hellwig | 5 | 1.76% | 2 | 28.57% |
| james hogan | james hogan | 5 | 1.76% | 1 | 14.29% |
| Total | 284 | 100.00% | 7 | 100.00% |
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