arch:rsicv:select ARCH_HAS_DMA_WRITE_COMBINE #131
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c910 support bufferable, enable DMA_WRITE_COMBINE, let dma_alloc_* memory can be map WRITE_COMBINE. otherwise dma_alloc_* memory be strong order prot to user space. Signed-off-by: Huaming <[email protected]> Signed-off-by: Chen Pei <[email protected]>
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c910 support bufferable, enable DMA_WRITE_COMBINE, let dma_alloc_* memory can be map WRITE_COMBINE. otherwise dma_alloc_* memory be strong order prot to user space.