1 files changed, 25 insertions, 2 deletions

diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 81a4e213c6cf..8c0e349f4a6c 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -23,6 +23,29 @@ extern int swiotlb_force;
 #define IO_TLB_SHIFT 11
 
 extern void swiotlb_init(int verbose);
+extern void swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose);
+
+/*
+ * Enumeration for sync targets
+ */
+enum dma_sync_target {
+        SYNC_FOR_CPU = 0,
+        SYNC_FOR_DEVICE = 1,
+};
+extern void *swiotlb_tbl_map_single(struct device *hwdev, dma_addr_t tbl_dma_addr,
+                                    phys_addr_t phys, size_t size,
+                                    enum dma_data_direction dir);
+
+extern void swiotlb_tbl_unmap_single(struct device *hwdev, char *dma_addr,
+                                     size_t size, enum dma_data_direction dir);
+
+extern void swiotlb_tbl_sync_single(struct device *hwdev, char *dma_addr,
+                                    size_t size, enum dma_data_direction dir,
+                                    enum dma_sync_target target);
+
+/* Accessory functions. */
+extern void swiotlb_bounce(phys_addr_t phys, char *dma_addr, size_t size,
+                           enum dma_data_direction dir);
 
 extern void
 *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
@@ -42,11 +65,11 @@ extern void swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
 
 extern int
 swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, int nents,
-               int direction);
+               enum dma_data_direction dir);
 
 extern void
 swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents,
-                 int direction);
+                 enum dma_data_direction dir);
 
 extern int
 swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,