tjh.dev / kernel
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel / include / asm-generic / dma-contiguous.h
at v3.5-rc5 28 lines 526 B view raw
1#ifndef ASM_DMA_CONTIGUOUS_H 2#define ASM_DMA_CONTIGUOUS_H 3 4#ifdef __KERNEL__ 5#ifdef CONFIG_CMA 6 7#include <linux/device.h> 8#include <linux/dma-contiguous.h> 9 10static inline struct cma *dev_get_cma_area(struct device *dev) 11{ 12 if (dev && dev->cma_area) 13 return dev->cma_area; 14 return dma_contiguous_default_area; 15} 16 17static inline void dev_set_cma_area(struct device *dev, struct cma *cma) 18{ 19 if (dev) 20 dev->cma_area = cma; 21 if (!dev || !dma_contiguous_default_area) 22 dma_contiguous_default_area = cma; 23} 24 25#endif 26#endif 27 28#endif