65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
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/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2006 Ralf Baechle <ralf@linux-mips.org>
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* Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
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*
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*/
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#ifndef __ASM_MACH_ATH25_DMA_COHERENCE_H
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#define __ASM_MACH_ATH25_DMA_COHERENCE_H
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#include <linux/device.h>
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static inline dma_addr_t
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plat_map_dma_mem(struct device *dev, void *addr, size_t size)
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{
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return virt_to_phys(addr);
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}
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static inline dma_addr_t
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plat_map_dma_mem_page(struct device *dev, struct page *page)
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{
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return page_to_phys(page);
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}
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static inline unsigned long
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plat_dma_addr_to_phys(struct device *dev, dma_addr_t dma_addr)
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{
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return dma_addr;
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}
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static inline void
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plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr, size_t size,
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enum dma_data_direction direction)
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{
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}
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static inline int plat_dma_supported(struct device *dev, u64 mask)
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{
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return 1;
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}
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static inline void plat_extra_sync_for_device(struct device *dev)
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{
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}
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static inline int plat_dma_mapping_error(struct device *dev,
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dma_addr_t dma_addr)
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{
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return 0;
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}
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static inline int plat_device_is_coherent(struct device *dev)
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{
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#ifdef CONFIG_DMA_COHERENT
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return 1;
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#endif
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#ifdef CONFIG_DMA_NONCOHERENT
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return 0;
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#endif
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}
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#endif /* __ASM_MACH_ATH25_DMA_COHERENCE_H */
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