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authorRalf Baechle <ralf@linux-mips.org>2001-03-09 20:33:35 +0000
committerRalf Baechle <ralf@linux-mips.org>2001-03-09 20:33:35 +0000
commit116674acc97ba75a720329996877077d988443a2 (patch)
tree6a3f2ff0b612ae2ee8a3f3509370c9e6333a53b3 /include/asm-s390x/dma.h
parent71118c319fcae4a138f16e35b4f7e0a6d53ce2ca (diff)
Merge with Linux 2.4.2.
Diffstat (limited to 'include/asm-s390x/dma.h')
-rw-r--r--include/asm-s390x/dma.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/asm-s390x/dma.h b/include/asm-s390x/dma.h
new file mode 100644
index 000000000..2a19a6184
--- /dev/null
+++ b/include/asm-s390x/dma.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-s390x/dma.h
+ *
+ * S390 version
+ */
+
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <asm/io.h> /* need byte IO */
+
+/* The I/O subsystem can access only memory below 2GB.
+ We use the existing DMA zone mechanism to handle this. */
+#define MAX_DMA_ADDRESS 0x80000000
+
+#endif /* _ASM_DMA_H */