diff options
Diffstat (limited to 'arch/x86/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h new file mode 100644 index 000000000..bb1654fe0 --- /dev/null +++ b/arch/x86/include/asm/dma-mapping.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_DMA_MAPPING_H +#define _ASM_X86_DMA_MAPPING_H + +/* + * IOMMU interface. See Documentation/core-api/dma-api-howto.rst and + * Documentation/core-api/dma-api.rst for documentation. + */ + +#include <linux/scatterlist.h> +#include <asm/io.h> +#include <asm/swiotlb.h> + +extern int iommu_merge; +extern int panic_on_overflow; + +extern const struct dma_map_ops *dma_ops; + +static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) +{ + return dma_ops; +} + +#endif |