950c596867
dma_unmap_single() takes the dma address, not virtual address. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
54 lines
1.2 KiB
C
54 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2007
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* Stelian Pop <stelian@popies.net>
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* Lead Tech Design <www.leadtechdesign.com>
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*/
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#ifndef __ASM_ARM_DMA_MAPPING_H
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#define __ASM_ARM_DMA_MAPPING_H
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#include <common.h>
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#include <asm/cache.h>
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#include <cpu_func.h>
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#include <linux/dma-direction.h>
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#include <linux/types.h>
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#include <malloc.h>
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#define dma_mapping_error(x, y) 0
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static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
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{
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*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, ROUND(len, ARCH_DMA_MINALIGN));
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return (void *)*handle;
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}
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static inline void dma_free_coherent(void *addr)
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{
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free(addr);
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}
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static inline dma_addr_t dma_map_single(void *vaddr, size_t len,
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enum dma_data_direction dir)
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{
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unsigned long addr = (unsigned long)vaddr;
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len = ALIGN(len, ARCH_DMA_MINALIGN);
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if (dir == DMA_FROM_DEVICE)
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invalidate_dcache_range(addr, addr + len);
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else
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flush_dcache_range(addr, addr + len);
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return addr;
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}
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static inline void dma_unmap_single(dma_addr_t addr, size_t len,
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enum dma_data_direction dir)
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{
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len = ALIGN(len, ARCH_DMA_MINALIGN);
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if (dir != DMA_TO_DEVICE)
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invalidate_dcache_range(addr, addr + len);
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}
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#endif /* __ASM_ARM_DMA_MAPPING_H */
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