patch-2.4.22 linux-2.4.22/include/asm-sh64/dma.h

• Lines: 42
• Date: 2003-08-25 04:44:44.000000000 -0700
• Orig file: linux-2.4.21/include/asm-sh64/dma.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/include/asm-sh64/dma.h linux-2.4.22/include/asm-sh64/dma.h
@@ -0,0 +1,41 @@
+#ifndef __ASM_SH64_DMA_H
+#define __ASM_SH64_DMA_H
+
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * include/asm-sh64/dma.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ * Copyright (C) 2003  Paul Mundt
+ *
+ */
+
+#include <linux/mm.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+
+#define MAX_DMA_CHANNELS	4
+
+/*
+ * SH5 can DMA in any memory area.
+ *
+ * The static definition is dodgy because it should limit
+ * the highest DMA-able address based on the actual
+ * Physical memory available. This is actually performed
+ * at run time in defining the memory allowed to DMA_ZONE.
+ */
+#define MAX_DMA_ADDRESS		~(NPHYS_MASK)
+
+#define DMA_MODE_READ		0
+#define DMA_MODE_WRITE		1
+
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy 	(0)
+#endif
+
+#endif /* __ASM_SH64_DMA_H */