WSL2-Linux-Kernel/include/asm-generic/dma-mapping.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_DMA_MAPPING_H
#define _ASM_GENERIC_DMA_MAPPING_H

static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
{
	return &dma_direct_ops;
}

#endif /* _ASM_GENERIC_DMA_MAPPING_H */
dma-mapping: provide a generic asm/dma-mapping.h For architectures that just use the generic dma_noop_ops we can provide a generic version of dma-mapping.h. Signed-off-by: Christoph Hellwig <hch@lst.de> 2017-12-23 12:56:51 +03:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#ifndef _ASM_GENERIC_DMA_MAPPING_H`
			`#define _ASM_GENERIC_DMA_MAPPING_H`

			`static inline const struct dma_map_ops get_arch_dma_ops(struct bus_type bus)`
			`{`
dma-direct: rename dma_noop to dma_direct The trivial direct mapping implementation already does a virtual to physical translation which isn't strictly a noop, and will soon learn to do non-direct but linear physical to dma translations through the device offset and a few small tricks. Rename it to a better fitting name. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com> 2018-01-09 18:30:23 +03:00			`return &dma_direct_ops;`
dma-mapping: provide a generic asm/dma-mapping.h For architectures that just use the generic dma_noop_ops we can provide a generic version of dma-mapping.h. Signed-off-by: Christoph Hellwig <hch@lst.de> 2017-12-23 12:56:51 +03:00			`}`

			`#endif /* _ASM_GENERIC_DMA_MAPPING_H */`