diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/swiotlb.c | 50 |
1 files changed, 42 insertions, 8 deletions
diff --git a/lib/swiotlb.c b/lib/swiotlb.c index 3c95922..d568894 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -555,7 +555,8 @@ swiotlb_full(struct device *dev, size_t size, int dir, int do_panic) * either swiotlb_unmap_single or swiotlb_dma_sync_single is performed. */ dma_addr_t -swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir) +swiotlb_map_single_attrs(struct device *hwdev, void *ptr, size_t size, + int dir, struct dma_attrs *attrs) { dma_addr_t dev_addr = virt_to_bus(ptr); void *map; @@ -588,6 +589,13 @@ swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir) return dev_addr; } +EXPORT_SYMBOL(swiotlb_map_single_attrs); + +dma_addr_t +swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir) +{ + return swiotlb_map_single_attrs(hwdev, ptr, size, dir, NULL); +} /* * Unmap a single streaming mode DMA translation. The dma_addr and size must @@ -598,8 +606,8 @@ swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, int dir) * whatever the device wrote there. */ void -swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size, - int dir) +swiotlb_unmap_single_attrs(struct device *hwdev, dma_addr_t dev_addr, + size_t size, int dir, struct dma_attrs *attrs) { char *dma_addr = bus_to_virt(dev_addr); @@ -609,7 +617,14 @@ swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size, else if (dir == DMA_FROM_DEVICE) dma_mark_clean(dma_addr, size); } +EXPORT_SYMBOL(swiotlb_unmap_single_attrs); +void +swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, size_t size, + int dir) +{ + return swiotlb_unmap_single_attrs(hwdev, dev_addr, size, dir, NULL); +} /* * Make physical memory consistent for a single streaming mode DMA translation * after a transfer. @@ -680,6 +695,8 @@ swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr, SYNC_FOR_DEVICE); } +void swiotlb_unmap_sg_attrs(struct device *, struct scatterlist *, int, int, + struct dma_attrs *); /* * Map a set of buffers described by scatterlist in streaming mode for DMA. * This is the scatter-gather version of the above swiotlb_map_single @@ -697,8 +714,8 @@ swiotlb_sync_single_range_for_device(struct device *hwdev, dma_addr_t dev_addr, * same here. */ int -swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, - int dir) +swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems, + int dir, struct dma_attrs *attrs) { struct scatterlist *sg; void *addr; @@ -716,7 +733,8 @@ swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, /* Don't panic here, we expect map_sg users to do proper error handling. */ swiotlb_full(hwdev, sg->length, dir, 0); - swiotlb_unmap_sg(hwdev, sgl, i, dir); + swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir, + attrs); sgl[0].dma_length = 0; return 0; } @@ -727,14 +745,22 @@ swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, } return nelems; } +EXPORT_SYMBOL(swiotlb_map_sg_attrs); + +int +swiotlb_map_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, + int dir) +{ + return swiotlb_map_sg_attrs(hwdev, sgl, nelems, dir, NULL); +} /* * Unmap a set of streaming mode DMA translations. Again, cpu read rules * concerning calls here are the same as for swiotlb_unmap_single() above. */ void -swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, - int dir) +swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl, + int nelems, int dir, struct dma_attrs *attrs) { struct scatterlist *sg; int i; @@ -749,6 +775,14 @@ swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, dma_mark_clean(SG_ENT_VIRT_ADDRESS(sg), sg->dma_length); } } +EXPORT_SYMBOL(swiotlb_unmap_sg_attrs); + +void +swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sgl, int nelems, + int dir) +{ + return swiotlb_unmap_sg_attrs(hwdev, sgl, nelems, dir, NULL); +} /* * Make physical memory consistent for a set of streaming mode DMA translations |
