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nios2: convert dma_alloc_coherent to use malloc_cache_aligned
Convert dma_alloc_coherent to use memalign. Signed-off-by: Thomas Chou <thomas@wytron.com.tw> Reviewed-by: Marek Vasut <marex@denx.de>
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@ -1,23 +1,24 @@
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#ifndef __ASM_NIOS2_DMA_MAPPING_H
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#ifndef __ASM_NIOS2_DMA_MAPPING_H
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#define __ASM_NIOS2_DMA_MAPPING_H
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#define __ASM_NIOS2_DMA_MAPPING_H
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/* dma_alloc_coherent() return cache-line aligned allocation which is mapped
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#include <memalign.h>
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* to uncached io region.
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#include <asm/io.h>
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*
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* IO_REGION_BASE should be defined in board config header file
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* 0x80000000 for nommu, 0xe0000000 for mmu
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*/
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/*
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* dma_alloc_coherent() return cache-line aligned allocation which is mapped
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* to uncached io region.
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*/
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static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
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static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
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{
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{
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void *addr = malloc(len + CONFIG_SYS_DCACHELINE_SIZE);
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unsigned long addr = (unsigned long)malloc_cache_aligned(len);
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if (!addr)
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return 0;
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flush_dcache((unsigned long)addr, len + CONFIG_SYS_DCACHELINE_SIZE);
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*handle = ((unsigned long)addr +
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(CONFIG_SYS_DCACHELINE_SIZE - 1)) &
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~(CONFIG_SYS_DCACHELINE_SIZE - 1) & ~(IO_REGION_BASE);
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return (void *)(*handle | IO_REGION_BASE);
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}
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if (!addr)
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return NULL;
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invalidate_dcache_range(addr, addr + len);
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if (handle)
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*handle = addr;
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return ioremap(addr, len);
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}
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#endif /* __ASM_NIOS2_DMA_MAPPING_H */
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#endif /* __ASM_NIOS2_DMA_MAPPING_H */
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