linux/include/asm-generic/dma-contiguous.h at master · fabgithub/linux · GitHub

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#ifndef ASM_DMA_CONTIGUOUS_H

#define ASM_DMA_CONTIGUOUS_H

#ifdef __KERNEL__

#ifdef CONFIG_CMA

#include <linux/device.h>

#include <linux/dma-contiguous.h>

static inline struct cma *dev_get_cma_area(struct device *dev)

{

if (dev && dev->cma_area)

return dev->cma_area;

return dma_contiguous_default_area;

}

static inline void dev_set_cma_area(struct device *dev, struct cma *cma)

{

if (dev)

dev->cma_area = cma;

if (!dev && !dma_contiguous_default_area)

dma_contiguous_default_area = cma;

}

#endif