diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 6ad1ced..e176689 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -129,17 +129,21 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	unsigned int offset = paddr & ~PAGE_MASK;
 	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t dev_addr)
 {
 	unsigned int offset = dev_addr & ~PAGE_MASK;
 	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index ba437f0..39f21e8 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -64,15 +64,19 @@ static inline bool is_device_dma_coherent(struct device *dev)
 	return dev->archdata.dma_coherent;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	return (dma_addr_t)paddr;
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t dev_addr)
 {
 	return (phys_addr_t)dev_addr;
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
@@ -88,3 +92,4 @@ static inline void dma_mark_clean(void *addr, size_t size)
 
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_DMA_MAPPING_H */
+
diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c
index a6e757c..ada00c3 100644
--- a/arch/arm64/mm/dma-mapping.c
+++ b/arch/arm64/mm/dma-mapping.c
@@ -107,7 +107,7 @@ static void *__dma_alloc_coherent(struct device *dev, size_t size,
 		if (!page)
 			return NULL;
 
-		*dma_handle = phys_to_dma(dev, page_to_phys(page));
+		*dma_handle = swiotlb_phys_to_dma(dev, page_to_phys(page));
 		addr = page_address(page);
 		memset(addr, 0, size);
 		return addr;
@@ -121,7 +121,7 @@ static void __dma_free_coherent(struct device *dev, size_t size,
 				struct dma_attrs *attrs)
 {
 	bool freed;
-	phys_addr_t paddr = dma_to_phys(dev, dma_handle);
+	phys_addr_t paddr = swiotlb_dma_to_phys(dev, dma_handle);
 
 	if (dev == NULL) {
 		WARN_ONCE(1, "Use an actual device structure for DMA allocation\n");
@@ -151,7 +151,8 @@ static void *__dma_alloc(struct device *dev, size_t size,
 		void *addr = __alloc_from_pool(size, &page, flags);
 
 		if (addr)
-			*dma_handle = phys_to_dma(dev, page_to_phys(page));
+			*dma_handle = swiotlb_phys_to_dma(dev,
+							  page_to_phys(page));
 
 		return addr;
 	}
@@ -187,7 +188,7 @@ static void __dma_free(struct device *dev, size_t size,
 		       void *vaddr, dma_addr_t dma_handle,
 		       struct dma_attrs *attrs)
 {
-	void *swiotlb_addr = phys_to_virt(dma_to_phys(dev, dma_handle));
+	void *swiotlb_addr = phys_to_virt(swiotlb_dma_to_phys(dev, dma_handle));
 
 	size = PAGE_ALIGN(size);
 
@@ -208,7 +209,8 @@ static dma_addr_t __swiotlb_map_page(struct device *dev, struct page *page,
 
 	dev_addr = swiotlb_map_page(dev, page, offset, size, dir, attrs);
 	if (!is_device_dma_coherent(dev))
-		__dma_map_area(phys_to_virt(dma_to_phys(dev, dev_addr)), size, dir);
+		__dma_map_area(phys_to_virt(swiotlb_dma_to_phys(dev, dev_addr)),
+			       size, dir);
 
 	return dev_addr;
 }
@@ -218,8 +220,11 @@ static void __swiotlb_unmap_page(struct device *dev, dma_addr_t dev_addr,
 				 size_t size, enum dma_data_direction dir,
 				 struct dma_attrs *attrs)
 {
-	if (!is_device_dma_coherent(dev))
-		__dma_unmap_area(phys_to_virt(dma_to_phys(dev, dev_addr)), size, dir);
+	if (!is_device_dma_coherent(dev)) {
+		phys_addr_t phys = swiotlb_dma_to_phys(dev, dev_addr);
+
+		__dma_unmap_area(phys_to_virt(phys), size, dir);
+	}
 	swiotlb_unmap_page(dev, dev_addr, size, dir, attrs);
 }
 
@@ -232,9 +237,12 @@ static int __swiotlb_map_sg_attrs(struct device *dev, struct scatterlist *sgl,
 
 	ret = swiotlb_map_sg_attrs(dev, sgl, nelems, dir, attrs);
 	if (!is_device_dma_coherent(dev))
-		for_each_sg(sgl, sg, ret, i)
-			__dma_map_area(phys_to_virt(dma_to_phys(dev, sg->dma_address)),
-				       sg->length, dir);
+		for_each_sg(sgl, sg, ret, i) {
+			dma_addr_t dma = sg->dma_address;
+			phys_addr_t phys = swiotlb_dma_to_phys(dev, dma);
+
+			__dma_map_area(phys_to_virt(phys), sg->length, dir);
+		}
 
 	return ret;
 }
@@ -248,9 +256,12 @@ static void __swiotlb_unmap_sg_attrs(struct device *dev,
 	int i;
 
 	if (!is_device_dma_coherent(dev))
-		for_each_sg(sgl, sg, nelems, i)
-			__dma_unmap_area(phys_to_virt(dma_to_phys(dev, sg->dma_address)),
-					 sg->length, dir);
+		for_each_sg(sgl, sg, nelems, i) {
+			dma_addr_t dma = sg->dma_address;
+			phys_addr_t phys = swiotlb_dma_to_phys(dev, dma);
+
+			__dma_unmap_area(phys_to_virt(phys), sg->length, dir);
+		}
 	swiotlb_unmap_sg_attrs(dev, sgl, nelems, dir, attrs);
 }
 
@@ -258,8 +269,11 @@ static void __swiotlb_sync_single_for_cpu(struct device *dev,
 					  dma_addr_t dev_addr, size_t size,
 					  enum dma_data_direction dir)
 {
-	if (!is_device_dma_coherent(dev))
-		__dma_unmap_area(phys_to_virt(dma_to_phys(dev, dev_addr)), size, dir);
+	if (!is_device_dma_coherent(dev)) {
+		phys_addr_t phys = swiotlb_dma_to_phys(dev, dev_addr);
+
+		__dma_unmap_area(phys_to_virt(phys), size, dir);
+	}
 	swiotlb_sync_single_for_cpu(dev, dev_addr, size, dir);
 }
 
@@ -269,7 +283,8 @@ static void __swiotlb_sync_single_for_device(struct device *dev,
 {
 	swiotlb_sync_single_for_device(dev, dev_addr, size, dir);
 	if (!is_device_dma_coherent(dev))
-		__dma_map_area(phys_to_virt(dma_to_phys(dev, dev_addr)), size, dir);
+		__dma_map_area(phys_to_virt(swiotlb_dma_to_phys(dev, dev_addr)),
+			       size, dir);
 }
 
 static void __swiotlb_sync_sg_for_cpu(struct device *dev,
@@ -280,9 +295,12 @@ static void __swiotlb_sync_sg_for_cpu(struct device *dev,
 	int i;
 
 	if (!is_device_dma_coherent(dev))
-		for_each_sg(sgl, sg, nelems, i)
-			__dma_unmap_area(phys_to_virt(dma_to_phys(dev, sg->dma_address)),
-					 sg->length, dir);
+		for_each_sg(sgl, sg, nelems, i) {
+			dma_addr_t dma = sg->dma_address;
+			phys_addr_t phys = swiotlb_dma_to_phys(dev, dma);
+
+			__dma_unmap_area(phys_to_virt(phys), sg->length, dir);
+		}
 	swiotlb_sync_sg_for_cpu(dev, sgl, nelems, dir);
 }
 
@@ -295,9 +313,12 @@ static void __swiotlb_sync_sg_for_device(struct device *dev,
 
 	swiotlb_sync_sg_for_device(dev, sgl, nelems, dir);
 	if (!is_device_dma_coherent(dev))
-		for_each_sg(sgl, sg, nelems, i)
-			__dma_map_area(phys_to_virt(dma_to_phys(dev, sg->dma_address)),
-				       sg->length, dir);
+		for_each_sg(sgl, sg, nelems, i) {
+			dma_addr_t dma = sg->dma_address;
+			phys_addr_t phys = swiotlb_dma_to_phys(dev, dma);
+
+			__dma_map_area(phys_to_virt(phys), sg->length, dir);
+		}
 }
 
 static int __swiotlb_mmap(struct device *dev,
@@ -309,7 +330,7 @@ static int __swiotlb_mmap(struct device *dev,
 	unsigned long nr_vma_pages = (vma->vm_end - vma->vm_start) >>
 					PAGE_SHIFT;
 	unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
-	unsigned long pfn = dma_to_phys(dev, dma_addr) >> PAGE_SHIFT;
+	unsigned long pfn = swiotlb_dma_to_phys(dev, dma_addr) >> PAGE_SHIFT;
 	unsigned long off = vma->vm_pgoff;
 
 	vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot,
@@ -334,9 +355,11 @@ static int __swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt,
 {
 	int ret = sg_alloc_table(sgt, 1, GFP_KERNEL);
 
-	if (!ret)
-		sg_set_page(sgt->sgl, phys_to_page(dma_to_phys(dev, handle)),
-			    PAGE_ALIGN(size), 0);
+	if (!ret) {
+		phys_addr_t phys = swiotlb_dma_to_phys(dev, handle);
+
+		sg_set_page(sgt->sgl, phys_to_page(phys), PAGE_ALIGN(size), 0);
+	}
 
 	return ret;
 }
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index d472805..a8736b9 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -33,15 +33,19 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size - 1 <= *dev->dma_mask;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	return paddr;
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t daddr)
 {
 	return daddr;
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 
 static inline void
 dma_cache_sync (struct device *dev, void *vaddr, size_t size,
diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c
index 2cd45f5..9ea7e9b 100644
--- a/arch/mips/cavium-octeon/dma-octeon.c
+++ b/arch/mips/cavium-octeon/dma-octeon.c
@@ -210,7 +210,7 @@ struct octeon_dma_map_ops {
 	phys_addr_t (*dma_to_phys)(struct device *dev, dma_addr_t daddr);
 };
 
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+dma_addr_t swiotlb_phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	struct octeon_dma_map_ops *ops = container_of(get_dma_ops(dev),
 						      struct octeon_dma_map_ops,
@@ -218,9 +218,9 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 
 	return ops->phys_to_dma(dev, paddr);
 }
-EXPORT_SYMBOL(phys_to_dma);
+EXPORT_SYMBOL(swiotlb_phys_to_dma);
 
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+phys_addr_t swiotlb_dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
 	struct octeon_dma_map_ops *ops = container_of(get_dma_ops(dev),
 						      struct octeon_dma_map_ops,
@@ -228,7 +228,7 @@ phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
 
 	return ops->dma_to_phys(dev, daddr);
 }
-EXPORT_SYMBOL(dma_to_phys);
+EXPORT_SYMBOL(swiotlb_dma_to_phys);
 
 static struct octeon_dma_map_ops octeon_linear_dma_map_ops = {
 	.dma_map_ops = {
diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 460042e..5f0f13a 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -61,8 +61,11 @@ static inline void plat_post_dma_flush(struct device *dev)
 {
 }
 
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+dma_addr_t swiotlb_phys_to_dma(struct device *dev, phys_addr_t paddr);
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
+
+phys_addr_t swiotlb_dma_to_phys(struct device *dev, dma_addr_t daddr);
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 
 struct dma_map_ops;
 extern struct dma_map_ops *octeon_pci_dma_map_ops;
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 0f8a354..54fde22 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -59,15 +59,19 @@ static inline void plat_post_dma_flush(struct device *dev)
 #endif
 
 #ifdef CONFIG_SWIOTLB
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	return paddr;
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t daddr)
 {
 	return daddr;
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 #endif
 
 #endif /* __ASM_MACH_GENERIC_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/mach-loongson64/dma-coherence.h b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
index 1602a9e..26fe763 100644
--- a/arch/mips/include/asm/mach-loongson64/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson64/dma-coherence.h
@@ -17,13 +17,17 @@
 
 struct device;
 
-extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+extern dma_addr_t swiotlb_phys_to_dma(struct device *dev, phys_addr_t paddr);
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
+
+extern phys_addr_t swiotlb_dma_to_phys(struct device *dev, dma_addr_t daddr);
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
+
 static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
 					  size_t size)
 {
 #ifdef CONFIG_CPU_LOONGSON3
-	return phys_to_dma(dev, virt_to_phys(addr));
+	return swiotlb_phys_to_dma(dev, virt_to_phys(addr));
 #else
 	return virt_to_phys(addr) | 0x80000000;
 #endif
@@ -33,7 +37,7 @@ static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
 					       struct page *page)
 {
 #ifdef CONFIG_CPU_LOONGSON3
-	return phys_to_dma(dev, page_to_phys(page));
+	return swiotlb_phys_to_dma(dev, page_to_phys(page));
 #else
 	return page_to_phys(page) | 0x80000000;
 #endif
@@ -43,7 +47,7 @@ static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
 	dma_addr_t dma_addr)
 {
 #if defined(CONFIG_CPU_LOONGSON3) && defined(CONFIG_64BIT)
-	return dma_to_phys(dev, dma_addr);
+	return swiotlb_dma_to_phys(dev, dma_addr);
 #elif defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT)
 	return (dma_addr > 0x8fffffff) ? dma_addr : (dma_addr & 0x0fffffff);
 #else
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index 4ffa6fc..88ef4cf 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -98,7 +98,7 @@ static int loongson_dma_set_mask(struct device *dev, u64 mask)
 	return 0;
 }
 
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+dma_addr_t swiotlb_phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	long nid;
 #ifdef CONFIG_PHYS48_TO_HT40
@@ -110,7 +110,7 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 	return paddr;
 }
 
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+phys_addr_t swiotlb_dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
 	long nid;
 #ifdef CONFIG_PHYS48_TO_HT40
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index 77816ac..3a9d6f2 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -143,15 +143,19 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size - 1 <= *dev->dma_mask;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	return paddr + get_dma_offset(dev);
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t daddr)
 {
 	return daddr - get_dma_offset(dev);
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 
 #define ARCH_HAS_DMA_MMAP_COHERENT
 
diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h
index 01ceb4a..87c205a 100644
--- a/arch/tile/include/asm/dma-mapping.h
+++ b/arch/tile/include/asm/dma-mapping.h
@@ -47,15 +47,19 @@ static inline void set_dma_offset(struct device *dev, dma_addr_t off)
 	dev->archdata.dma_offset = off;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	return paddr;
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t daddr)
 {
 	return daddr;
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h
index 4749854..762cdd8 100644
--- a/arch/unicore32/include/asm/dma-mapping.h
+++ b/arch/unicore32/include/asm/dma-mapping.h
@@ -36,15 +36,19 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return 1;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	return paddr;
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t daddr)
 {
 	return daddr;
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 
 static inline void dma_mark_clean(void *addr, size_t size) {}
 
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 3a27b93..be8b76e 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -56,8 +56,11 @@ extern void dma_generic_free_coherent(struct device *dev, size_t size,
 
 #ifdef CONFIG_X86_DMA_REMAP /* Platform code defines bridge-specific code */
 extern bool dma_capable(struct device *dev, dma_addr_t addr, size_t size);
-extern dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
-extern phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
+extern dma_addr_t swiotlb_phys_to_dma(struct device *dev, phys_addr_t paddr);
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
+
+extern phys_addr_t swiotlb_dma_to_phys(struct device *dev, dma_addr_t daddr);
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 #else
 
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
@@ -68,15 +71,19 @@ static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	return addr + size - 1 <= *dev->dma_mask;
 }
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	return paddr;
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t daddr)
 {
 	return daddr;
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 #endif /* CONFIG_X86_DMA_REMAP */
 
 static inline void
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 7c577a1..9333fbd 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -39,7 +39,7 @@ void x86_swiotlb_free_coherent(struct device *dev, size_t size,
 				      void *vaddr, dma_addr_t dma_addr,
 				      struct dma_attrs *attrs)
 {
-	if (is_swiotlb_buffer(dma_to_phys(dev, dma_addr)))
+	if (is_swiotlb_buffer(swiotlb_dma_to_phys(dev, dma_addr)))
 		swiotlb_free_coherent(dev, size, vaddr, dma_addr);
 	else
 		dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 5ceda85..6df3eb4 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -241,11 +241,12 @@ bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 }
 
 /**
- * phys_to_dma - Return the DMA AMBA address used for this STA2x11 device
+ * swiotlb_phys_to_dma - Return the DMA AMBA address used for this
+ *	STA2x11 device
  * @dev: device for a PCI device
  * @paddr: Physical address
  */
-dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+dma_addr_t swiotlb_phys_to_dma(struct device *dev, phys_addr_t paddr)
 {
 	if (dev->archdata.dma_ops != &sta2x11_dma_ops)
 		return paddr;
@@ -253,11 +254,12 @@ dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
 }
 
 /**
- * dma_to_phys - Return the physical address used for this STA2x11 DMA address
+ * swiotlb_dma_to_phys - Return the physical address used for this
+ *	STA2x11 DMA address
  * @dev: device for a PCI device
  * @daddr: STA2x11 AMBA DMA address
  */
-phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+phys_addr_t swiotlb_dma_to_phys(struct device *dev, dma_addr_t daddr)
 {
 	if (dev->archdata.dma_ops != &sta2x11_dma_ops)
 		return daddr;
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
index 3fc1170..b0d725d 100644
--- a/arch/xtensa/include/asm/dma-mapping.h
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -31,14 +31,18 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 		    enum dma_data_direction direction);
 
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+static inline dma_addr_t swiotlb_phys_to_dma(struct device *dev,
+					     phys_addr_t paddr)
 {
 	return (dma_addr_t)paddr;
 }
+#define swiotlb_phys_to_dma swiotlb_phys_to_dma
 
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
+static inline phys_addr_t swiotlb_dma_to_phys(struct device *dev,
+					      dma_addr_t daddr)
 {
 	return (phys_addr_t)daddr;
 }
+#define swiotlb_dma_to_phys swiotlb_dma_to_phys
 
 #endif	/* _XTENSA_DMA_MAPPING_H */
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 76f29ec..5aadeca 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -135,7 +135,7 @@ unsigned long swiotlb_size_or_default(void)
 static dma_addr_t swiotlb_virt_to_bus(struct device *hwdev,
 				      volatile void *address)
 {
-	return phys_to_dma(hwdev, virt_to_phys(address));
+	return swiotlb_phys_to_dma(hwdev, virt_to_phys(address));
 }
 
 static bool no_iotlb_memory;
@@ -541,7 +541,7 @@ static phys_addr_t
 map_single(struct device *hwdev, phys_addr_t phys, size_t size,
 	   enum dma_data_direction dir)
 {
-	dma_addr_t start_dma_addr = phys_to_dma(hwdev, io_tlb_start);
+	dma_addr_t start_dma_addr = swiotlb_phys_to_dma(hwdev, io_tlb_start);
 
 	return swiotlb_tbl_map_single(hwdev, start_dma_addr, phys, size, dir);
 }
@@ -659,7 +659,7 @@ swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 			goto err_warn;
 
 		ret = phys_to_virt(paddr);
-		dev_addr = phys_to_dma(hwdev, paddr);
+		dev_addr = swiotlb_phys_to_dma(hwdev, paddr);
 
 		/* Confirm address can be DMA'd by device */
 		if (dev_addr + size - 1 > dma_mask) {
@@ -692,7 +692,7 @@ void
 swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
 		      dma_addr_t dev_addr)
 {
-	phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
+	phys_addr_t paddr = swiotlb_dma_to_phys(hwdev, dev_addr);
 
 	WARN_ON(irqs_disabled());
 	if (!is_swiotlb_buffer(paddr))
@@ -741,7 +741,7 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 			    struct dma_attrs *attrs)
 {
 	phys_addr_t map, phys = page_to_phys(page) + offset;
-	dma_addr_t dev_addr = phys_to_dma(dev, phys);
+	dma_addr_t dev_addr = swiotlb_phys_to_dma(dev, phys);
 
 	BUG_ON(dir == DMA_NONE);
 	/*
@@ -758,15 +758,15 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 	map = map_single(dev, phys, size, dir);
 	if (map == SWIOTLB_MAP_ERROR) {
 		swiotlb_full(dev, size, dir, 1);
-		return phys_to_dma(dev, io_tlb_overflow_buffer);
+		return swiotlb_phys_to_dma(dev, io_tlb_overflow_buffer);
 	}
 
-	dev_addr = phys_to_dma(dev, map);
+	dev_addr = swiotlb_phys_to_dma(dev, map);
 
 	/* Ensure that the address returned is DMA'ble */
 	if (!dma_capable(dev, dev_addr, size)) {
 		swiotlb_tbl_unmap_single(dev, map, size, dir);
-		return phys_to_dma(dev, io_tlb_overflow_buffer);
+		return swiotlb_phys_to_dma(dev, io_tlb_overflow_buffer);
 	}
 
 	return dev_addr;
@@ -784,7 +784,7 @@ EXPORT_SYMBOL_GPL(swiotlb_map_page);
 static void unmap_single(struct device *hwdev, dma_addr_t dev_addr,
 			 size_t size, enum dma_data_direction dir)
 {
-	phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
+	phys_addr_t paddr = swiotlb_dma_to_phys(hwdev, dev_addr);
 
 	BUG_ON(dir == DMA_NONE);
 
@@ -828,7 +828,7 @@ swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
 		    size_t size, enum dma_data_direction dir,
 		    enum dma_sync_target target)
 {
-	phys_addr_t paddr = dma_to_phys(hwdev, dev_addr);
+	phys_addr_t paddr = swiotlb_dma_to_phys(hwdev, dev_addr);
 
 	BUG_ON(dir == DMA_NONE);
 
@@ -886,7 +886,7 @@ swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
 
 	for_each_sg(sgl, sg, nelems, i) {
 		phys_addr_t paddr = sg_phys(sg);
-		dma_addr_t dev_addr = phys_to_dma(hwdev, paddr);
+		dma_addr_t dev_addr = swiotlb_phys_to_dma(hwdev, paddr);
 
 		if (swiotlb_force ||
 		    !dma_capable(hwdev, dev_addr, sg->length)) {
@@ -901,7 +901,7 @@ swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, int nelems,
 				sg_dma_len(sgl) = 0;
 				return 0;
 			}
-			sg->dma_address = phys_to_dma(hwdev, map);
+			sg->dma_address = swiotlb_phys_to_dma(hwdev, map);
 		} else
 			sg->dma_address = dev_addr;
 		sg_dma_len(sg) = sg->length;
@@ -984,7 +984,7 @@ EXPORT_SYMBOL(swiotlb_sync_sg_for_device);
 int
 swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr)
 {
-	return (dma_addr == phys_to_dma(hwdev, io_tlb_overflow_buffer));
+	return (dma_addr == swiotlb_phys_to_dma(hwdev, io_tlb_overflow_buffer));
 }
 EXPORT_SYMBOL(swiotlb_dma_mapping_error);
 
@@ -997,6 +997,6 @@ EXPORT_SYMBOL(swiotlb_dma_mapping_error);
 int
 swiotlb_dma_supported(struct device *hwdev, u64 mask)
 {
-	return phys_to_dma(hwdev, io_tlb_end - 1) <= mask;
+	return swiotlb_phys_to_dma(hwdev, io_tlb_end - 1) <= mask;
 }
 EXPORT_SYMBOL(swiotlb_dma_supported);
