[PATCH v2 04/11] dma-mapping: add <asm/dma-mapping.h> for all architectures

[Masahiro Yamada]

To avoid "asm/dma-mapping.h: No such file or directory" error,
we need something.

Signed-off-by: Masahiro Yamada <yamada.masahiro at socionext.com>
---

Changes in v2:
  - New patch

 arch/arc/include/asm/dma-mapping.h        |  1 +
 arch/m68k/include/asm/dma-mapping.h       |  1 +
 arch/microblaze/include/asm/dma-mapping.h |  1 +
 arch/mips/include/asm/dma-mapping.h       |  1 +
 arch/nios2/include/asm/dma-mapping.h      | 25 +----------------------
 arch/powerpc/include/asm/dma-mapping.h    |  1 +
 arch/sandbox/include/asm/dma-mapping.h    |  1 +
 arch/sh/include/asm/dma-mapping.h         |  1 +
 arch/xtensa/include/asm/dma-mapping.h     |  1 +
 9 files changed, 9 insertions(+), 24 deletions(-)
 create mode 100644 arch/arc/include/asm/dma-mapping.h
 create mode 100644 arch/m68k/include/asm/dma-mapping.h
 create mode 100644 arch/microblaze/include/asm/dma-mapping.h
 create mode 100644 arch/mips/include/asm/dma-mapping.h
 create mode 100644 arch/powerpc/include/asm/dma-mapping.h
 create mode 100644 arch/sandbox/include/asm/dma-mapping.h
 create mode 100644 arch/sh/include/asm/dma-mapping.h
 create mode 100644 arch/xtensa/include/asm/dma-mapping.h

diff --git a/arch/arc/include/asm/dma-mapping.h b/arch/arc/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..853b0877b33d
--- /dev/null
+++ b/arch/arc/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..853b0877b33d
--- /dev/null
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..853b0877b33d
--- /dev/null
+++ b/arch/microblaze/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..853b0877b33d
--- /dev/null
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
diff --git a/arch/nios2/include/asm/dma-mapping.h b/arch/nios2/include/asm/dma-mapping.h
index 65f67bc1f442..853b0877b33d 100644
--- a/arch/nios2/include/asm/dma-mapping.h
+++ b/arch/nios2/include/asm/dma-mapping.h
@@ -1,24 +1 @@
-#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 */
+/* SPDX-License-Identifier: GPL-2.0-only */
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..853b0877b33d
--- /dev/null
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
diff --git a/arch/sandbox/include/asm/dma-mapping.h b/arch/sandbox/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..853b0877b33d
--- /dev/null
+++ b/arch/sandbox/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..853b0877b33d
--- /dev/null
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..853b0877b33d
--- /dev/null
+++ b/arch/xtensa/include/asm/dma-mapping.h
@@ -0,0 +1 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
-- 
2.17.1