blob: 16b0e3c63ea7515e3e7995445d5d64bfe6102250 [file] [log] [blame]
#include_next <linux/dma-mapping.h>
#include <linux/version.h>
#define dma_zalloc_coherent LINUX_BACKPORT(dma_zalloc_coherent)
static inline void *dma_zalloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
void *ret = dma_alloc_coherent(dev, size, dma_handle, flag);
if (ret)
memset(ret, 0, size);
return ret;
* Set both the DMA mask and the coherent DMA mask to the same thing.
* Note that we don't check the return value from dma_set_coherent_mask()
* as the DMA API guarantees that the coherent DMA mask can be set to
* the same or smaller than the streaming DMA mask.
#define dma_set_mask_and_coherent LINUX_BACKPORT(dma_set_mask_and_coherent)
static inline int dma_set_mask_and_coherent(struct device *dev, u64 mask)
int rc = dma_set_mask(dev, mask);
if (rc == 0)
dma_set_coherent_mask(dev, mask);
return rc;
#endif /* LINUX_VERSION_IS_LESS(3,13,0) */