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Diffstat (limited to 'include/asm-x86_64/swiotlb.h')
-rw-r--r--include/asm-x86_64/swiotlb.h16
1 files changed, 11 insertions, 5 deletions
diff --git a/include/asm-x86_64/swiotlb.h b/include/asm-x86_64/swiotlb.h
index dddf1b21868..60757efd135 100644
--- a/include/asm-x86_64/swiotlb.h
+++ b/include/asm-x86_64/swiotlb.h
@@ -3,10 +3,14 @@
#include <linux/config.h>
+#include <asm/dma-mapping.h>
+
/* SWIOTLB interface */
-extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, size_t size,
- int dir);
+extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr,
+ size_t size, int dir);
+extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flags);
extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
size_t size, int dir);
extern void swiotlb_sync_single_for_cpu(struct device *hwdev,
@@ -34,10 +38,10 @@ extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg,
extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg,
int nents, int direction);
extern int swiotlb_dma_mapping_error(dma_addr_t dma_addr);
-extern void *swiotlb_alloc_coherent (struct device *hwdev, size_t size,
- dma_addr_t *dma_handle, gfp_t flags);
extern void swiotlb_free_coherent (struct device *hwdev, size_t size,
void *vaddr, dma_addr_t dma_handle);
+extern int swiotlb_dma_supported(struct device *hwdev, u64 mask);
+extern void swiotlb_init(void);
#ifdef CONFIG_SWIOTLB
extern int swiotlb;
@@ -45,4 +49,6 @@ extern int swiotlb;
#define swiotlb 0
#endif
-#endif
+extern void pci_swiotlb_init(void);
+
+#endif /* _ASM_SWTIOLB_H */