dma-contiguous.h

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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
#endif

#endif