9a88cbb522
Platforms will now have to supply a function dma_device_is_coherent which returns if a particular device participates in the coherence domain. For most platforms this function will always return 0 or 1. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
40 lines
934 B
C
40 lines
934 B
C
/*
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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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*/
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#ifndef __ASM_MACH_JAZZ_DMA_COHERENCE_H
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#define __ASM_MACH_JAZZ_DMA_COHERENCE_H
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#include <asm/jazzdma.h>
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struct device;
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static dma_addr_t plat_map_dma_mem(struct device *dev, void *addr, size_t size)
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{
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return vdma_alloc(virt_to_phys(addr), size);
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}
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static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
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{
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return vdma_alloc(page_to_phys(page), PAGE_SIZE);
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}
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static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
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{
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return vdma_log2phys(dma_addr);
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}
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static void plat_unmap_dma_mem(dma_addr_t dma_addr)
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{
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vdma_free(dma_addr);
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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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return 0;
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}
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#endif /* __ASM_MACH_JAZZ_DMA_COHERENCE_H */
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