diff options
Diffstat (limited to 'backport-include/asm/dma-mapping.h')
| -rw-r--r-- | backport-include/asm/dma-mapping.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/backport-include/asm/dma-mapping.h b/backport-include/asm/dma-mapping.h new file mode 100644 index 0000000..844fe3b --- /dev/null +++ b/backport-include/asm/dma-mapping.h @@ -0,0 +1,27 @@ +#ifndef __BACKPORT_ASM_DMA_MAPPING_H +#define __BACKPORT_ASM_DMA_MAPPING_H +#include_next <asm/dma-mapping.h> +#include <linux/version.h> + +#if defined(CPTCFG_BACKPORT_BUILD_DMA_SHARED_HELPERS) +#define dma_common_get_sgtable LINUX_BACKPORT(dma_common_get_sgtable) +int +dma_common_get_sgtable(struct device *dev, struct sg_table *sgt, + void *cpu_addr, dma_addr_t dma_addr, size_t size); +#endif /* defined(CPTCFG_BACKPORT_BUILD_DMA_SHARED_HELPERS) */ + +#if LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) + +#define dma_get_sgtable_attrs LINUX_BACKPORT(dma_get_sgtable_attrs) +struct dma_attrs; +static inline int +dma_get_sgtable_attrs(struct device *dev, struct sg_table *sgt, void *cpu_addr, + dma_addr_t dma_addr, size_t size, struct dma_attrs *attrs) +{ + return dma_common_get_sgtable(dev, sgt, cpu_addr, dma_addr, size); +} + +#define dma_get_sgtable(d, t, v, h, s) dma_get_sgtable_attrs(d, t, v, h, s, NULL) +#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0) */ + +#endif /* __BACKPORT_ASM_DMA_MAPPING_H */ |