diff options
Diffstat (limited to 'include/linux/scatterlist.h')
| -rw-r--r-- | include/linux/scatterlist.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index 77df3d7b18a6..138e2f1bd08f 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -273,7 +273,7 @@ static inline void sg_unmark_end(struct scatterlist *sg) } /* - * One 64-bit architectures there is a 4-byte padding in struct scatterlist + * On 64-bit architectures there is a 4-byte padding in struct scatterlist * (assuming also CONFIG_NEED_SG_DMA_LENGTH is set). Use this padding for DMA * flags bits to indicate when a specific dma address is a bus address or the * buffer may have been bounced via SWIOTLB. @@ -313,7 +313,7 @@ static inline void sg_dma_mark_bus_address(struct scatterlist *sg) } /** - * sg_unmark_bus_address - Unmark the scatterlist entry as a bus address + * sg_dma_unmark_bus_address - Unmark the scatterlist entry as a bus address * @sg: SG entry * * Description: @@ -332,7 +332,7 @@ static inline void sg_dma_unmark_bus_address(struct scatterlist *sg) * Description: * Returns true if the scatterlist was marked for SWIOTLB bouncing. Not all * elements may have been bounced, so the caller would have to check - * individual SG entries with is_swiotlb_buffer(). + * individual SG entries with swiotlb_find_pool(). */ static inline bool sg_dma_is_swiotlb(struct scatterlist *sg) { @@ -671,6 +671,7 @@ sg_page_iter_dma_address(struct sg_dma_page_iter *dma_iter) #define SG_MITER_ATOMIC (1 << 0) /* use kmap_atomic */ #define SG_MITER_TO_SG (1 << 1) /* flush back to phys on unmap */ #define SG_MITER_FROM_SG (1 << 2) /* nop */ +#define SG_MITER_LOCAL (1 << 3) /* use kmap_local */ struct sg_mapping_iter { /* the following three fields can be accessed directly */ |