d7950f8347
openrisc does not return errors for dma_map_page. Signed-off-by: Christoph Hellwig <hch@lst.de>
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/*
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* OpenRISC Linux
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*
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* Linux architectural port borrowing liberally from similar works of
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* others. All original copyrights apply as per the original source
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* declaration.
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*
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* OpenRISC implementation:
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* Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#ifndef __ASM_OPENRISC_DMA_MAPPING_H
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#define __ASM_OPENRISC_DMA_MAPPING_H
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/*
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* See Documentation/DMA-API-HOWTO.txt and
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* Documentation/DMA-API.txt for documentation.
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*/
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#include <linux/dma-debug.h>
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#include <linux/kmemcheck.h>
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#include <linux/dma-mapping.h>
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extern const struct dma_map_ops or1k_dma_map_ops;
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static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
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{
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return &or1k_dma_map_ops;
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}
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#define HAVE_ARCH_DMA_SUPPORTED 1
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static inline int dma_supported(struct device *dev, u64 dma_mask)
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{
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/* Support 32 bit DMA mask exclusively */
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return dma_mask == DMA_BIT_MASK(32);
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}
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#endif /* __ASM_OPENRISC_DMA_MAPPING_H */
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