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815dd18788
Introduce a new architecture-specific get_arch_dma_ops() function that takes a struct bus_type * argument. Add get_dma_ops() in <linux/dma-mapping.h>. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Juergen Gross <jgross@suse.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: x86@kernel.org Signed-off-by: Doug Ledford <dledford@redhat.com>
29 lines
734 B
C
29 lines
734 B
C
/*
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* DMA Mapping glue for ARC
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*
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* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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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 version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef ASM_ARC_DMA_MAPPING_H
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#define ASM_ARC_DMA_MAPPING_H
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#ifndef CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA
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#define plat_dma_to_phys(dev, dma_handle) ((phys_addr_t)(dma_handle))
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#define plat_phys_to_dma(dev, paddr) ((dma_addr_t)(paddr))
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#else
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#include <plat/dma.h>
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#endif
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extern const struct dma_map_ops arc_dma_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 &arc_dma_ops;
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}
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#endif
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