Some drivers call dma_inv_range() on buffers, on arm these buffers must
be cache line aligned. This patch introduces transparent dma_alloc,
dma_free for blackfin, mips, openrisc, ppc, sandbox, x86 architectures
which translate into xmemalign and free. The arm version uses xmemalign.
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
---
arch/blackfin/include/asm/dma.h | 21 +++++++++++++++++++++
arch/mips/include/asm/dma.h | 21 +++++++++++++++++++++
arch/openrisc/include/asm/dma.h | 21 +++++++++++++++++++++
arch/ppc/include/asm/dma.h | 21 +++++++++++++++++++++
arch/sandbox/include/asm/dma.h | 21 +++++++++++++++++++++
arch/x86/include/asm/dma.h | 21 +++++++++++++++++++++
6 files changed, 126 insertions(+), 0 deletions(-)
create mode 100644 arch/blackfin/include/asm/dma.h
create mode 100644 arch/mips/include/asm/dma.h
create mode 100644 arch/openrisc/include/asm/dma.h
create mode 100644 arch/ppc/include/asm/dma.h
create mode 100644 arch/sandbox/include/asm/dma.h
create mode 100644 arch/x86/include/asm/dma.h
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
new file mode 100644
index 0000000..c46d320
--- /dev/null
+++ b/arch/blackfin/include/asm/dma.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2012 by Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#ifndef __ASM_DMA_H
+#define __ASM_DMA_H
+
+static inline void *dma_alloc(size_t size)
+{
+ return xmalloc(size);
+}
+
+static inline void dma_free(void *mem)
+{
+ free(mem);
+}
+
+#endif /* __ASM_DMA_H */
diff --git a/arch/mips/include/asm/dma.h b/arch/mips/include/asm/dma.h
new file mode 100644
index 0000000..c46d320
--- /dev/null
+++ b/arch/mips/include/asm/dma.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2012 by Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#ifndef __ASM_DMA_H
+#define __ASM_DMA_H
+
+static inline void *dma_alloc(size_t size)
+{
+ return xmalloc(size);
+}
+
+static inline void dma_free(void *mem)
+{
+ free(mem);
+}
+
+#endif /* __ASM_DMA_H */
diff --git a/arch/openrisc/include/asm/dma.h b/arch/openrisc/include/asm/dma.h
new file mode 100644
index 0000000..c46d320
--- /dev/null
+++ b/arch/openrisc/include/asm/dma.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2012 by Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#ifndef __ASM_DMA_H
+#define __ASM_DMA_H
+
+static inline void *dma_alloc(size_t size)
+{
+ return xmalloc(size);
+}
+
+static inline void dma_free(void *mem)
+{
+ free(mem);
+}
+
+#endif /* __ASM_DMA_H */
diff --git a/arch/ppc/include/asm/dma.h b/arch/ppc/include/asm/dma.h
new file mode 100644
index 0000000..c46d320
--- /dev/null
+++ b/arch/ppc/include/asm/dma.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2012 by Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#ifndef __ASM_DMA_H
+#define __ASM_DMA_H
+
+static inline void *dma_alloc(size_t size)
+{
+ return xmalloc(size);
+}
+
+static inline void dma_free(void *mem)
+{
+ free(mem);
+}
+
+#endif /* __ASM_DMA_H */
diff --git a/arch/sandbox/include/asm/dma.h b/arch/sandbox/include/asm/dma.h
new file mode 100644
index 0000000..c46d320
--- /dev/null
+++ b/arch/sandbox/include/asm/dma.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2012 by Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#ifndef __ASM_DMA_H
+#define __ASM_DMA_H
+
+static inline void *dma_alloc(size_t size)
+{
+ return xmalloc(size);
+}
+
+static inline void dma_free(void *mem)
+{
+ free(mem);
+}
+
+#endif /* __ASM_DMA_H */
diff --git a/arch/x86/include/asm/dma.h b/arch/x86/include/asm/dma.h
new file mode 100644
index 0000000..c46d320
--- /dev/null
+++ b/arch/x86/include/asm/dma.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2012 by Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
+ *
+ * This file is released under the GPLv2
+ *
+ */
+
+#ifndef __ASM_DMA_H
+#define __ASM_DMA_H
+
+static inline void *dma_alloc(size_t size)
+{
+ return xmalloc(size);
+}
+
+static inline void dma_free(void *mem)
+{
+ free(mem);
+}
+
+#endif /* __ASM_DMA_H */
--
1.7.4.1
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