5 files changed, 0 insertions, 162 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
deleted file mode 100644
index fc5b8f6..0000000
--- a/arch/arm/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * (C) Copyright 2007
- * Stelian Pop <stelian@popies.net>
- * Lead Tech Design <www.leadtechdesign.com>
- */
-#ifndef __ASM_ARM_DMA_MAPPING_H
-#define __ASM_ARM_DMA_MAPPING_H
-
-#include <linux/dma-direction.h>
-
-#define	dma_mapping_error(x, y)	0
-
-static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
-{
-	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, ROUND(len, ARCH_DMA_MINALIGN));
-	return (void *)*handle;
-}
-
-static inline void dma_free_coherent(void *addr)
-{
-	free(addr);
-}
-
-static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
-					   enum dma_data_direction dir)
-{
-	return (unsigned long)vaddr;
-}
-
-static inline void dma_unmap_single(volatile void *vaddr, size_t len,
-				    unsigned long paddr)
-{
-}
-
-#endif /* __ASM_ARM_DMA_MAPPING_H */
diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h
deleted file mode 100644
index e6808dc..0000000
--- a/arch/nds32/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (C) 2013 Andes Technology Corporation
- * Ken Kuo, Andes Technology Corporation <ken_kuo@andestech.com>
- */
-#ifndef __ASM_NDS_DMA_MAPPING_H
-#define __ASM_NDS_DMA_MAPPING_H
-
-#include <linux/dma-direction.h>
-
-static void *dma_alloc_coherent(size_t len, unsigned long *handle)
-{
-	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
-	return (void *)*handle;
-}
-
-static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
-					   enum dma_data_direction dir)
-{
-	return (unsigned long)vaddr;
-}
-
-static inline void dma_unmap_single(volatile void *vaddr, size_t len,
-				    unsigned long paddr)
-{
-}
-
-#endif /* __ASM_NDS_DMA_MAPPING_H */
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
deleted file mode 100644
index 65f67bc..0000000
--- a/arch/nios2/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef __ASM_NIOS2_DMA_MAPPING_H
-#define __ASM_NIOS2_DMA_MAPPING_H
-
-#include <memalign.h>
-#include <asm/io.h>
-
-/*
- * dma_alloc_coherent() return cache-line aligned allocation which is mapped
- * to uncached io region.
- */
-static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
-{
-	unsigned long addr = (unsigned long)malloc_cache_aligned(len);
-
-	if (!addr)
-		return NULL;
-
-	invalidate_dcache_range(addr, addr + len);
-	if (handle)
-		*handle = addr;
-
-	return map_physmem(addr, len, MAP_NOCACHE);
-}
-#endif /* __ASM_NIOS2_DMA_MAPPING_H */
diff --git a/arch/riscv/include/asm/dma-mapping.h b/arch/riscv/include/asm/dma-mapping.h
deleted file mode 100644
index 3d930c9..0000000
--- a/arch/riscv/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * Copyright (c) 2018 Western Digital Corporation or its affiliates.
- *
- * Authors:
- *   Anup Patel <anup.patel@wdc.com>
- */
-
-#ifndef __ASM_RISCV_DMA_MAPPING_H
-#define __ASM_RISCV_DMA_MAPPING_H
-
-#include <linux/dma-direction.h>
-
-#define dma_mapping_error(x, y)	0
-
-static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
-{
-	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
-	return (void *)*handle;
-}
-
-static inline void dma_free_coherent(void *addr)
-{
-	free(addr);
-}
-
-static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
-					   enum dma_data_direction dir)
-{
-	return (unsigned long)vaddr;
-}
-
-static inline void dma_unmap_single(volatile void *vaddr, size_t len,
-				    unsigned long paddr)
-{
-}
-
-#endif /* __ASM_RISCV_DMA_MAPPING_H */
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
deleted file mode 100644
index b353ff0..0000000
--- a/arch/x86/include/asm/dma-mapping.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ */
-/*
- * (C) Copyright 2007
- * Stelian Pop <stelian@popies.net>
- * Lead Tech Design <www.leadtechdesign.com>
- */
-#ifndef __ASM_X86_DMA_MAPPING_H
-#define __ASM_X86_DMA_MAPPING_H
-
-#include <linux/dma-direction.h>
-
-#define	dma_mapping_error(x, y)	0
-
-static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
-{
-	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
-	return (void *)*handle;
-}
-
-static inline void dma_free_coherent(void *addr)
-{
-	free(addr);
-}
-
-static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
-					   enum dma_data_direction dir)
-{
-	return (unsigned long)vaddr;
-}
-
-static inline void dma_unmap_single(volatile void *vaddr, size_t len,
-				    unsigned long paddr)
-{
-}
-
-#endif /* __ASM_X86_DMA_MAPPING_H */