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@@ -0,0 +1,117 @@
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+/*
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+ * I/O string operations
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+ * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
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+ * Copyright (C) 2006 IBM Corporation
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+ *
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+ * Largely rewritten by Cort Dougan (cort@cs.nmt.edu)
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+ * and Paul Mackerras.
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+ *
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+ * Adapted for iSeries by Mike Corrigan (mikejc@us.ibm.com)
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+ * PPC64 updates by Dave Engebretsen (engebret@us.ibm.com)
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+ *
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+ * Rewritten in C by Stephen Rothwell.
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+ *
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+ * This program is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU General Public License
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+ * as published by the Free Software Foundation; either version
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+ * 2 of the License, or (at your option) any later version.
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+ */
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+#include <linux/kernel.h>
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+#include <linux/types.h>
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+#include <linux/compiler.h>
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+#include <linux/module.h>
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+
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+#include <asm/io.h>
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+
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+void _insb(volatile u8 __iomem *port, void *buf, long count)
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+{
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+ u8 *tbuf = buf;
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+ u8 tmp;
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+
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+ if (unlikely(count <= 0))
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+ return;
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+ asm volatile("sync");
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+ do {
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+ tmp = *port;
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+ asm volatile("eieio");
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+ *tbuf++ = tmp;
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+ } while (--count != 0);
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+ asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
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+}
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+EXPORT_SYMBOL(_insb);
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+
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+void _outsb(volatile u8 __iomem *port, const void *buf, long count)
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+{
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+ const u8 *tbuf = buf;
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+
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+ if (unlikely(count <= 0))
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+ return;
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+ asm volatile("sync");
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+ do {
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+ *port = *tbuf++;
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+ } while (--count != 0);
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+ asm volatile("sync");
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+}
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+EXPORT_SYMBOL(_outsb);
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+
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+void _insw_ns(volatile u16 __iomem *port, void *buf, long count)
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+{
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+ u16 *tbuf = buf;
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+ u16 tmp;
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+
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+ if (unlikely(count <= 0))
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+ return;
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+ asm volatile("sync");
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+ do {
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+ tmp = *port;
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+ asm volatile("eieio");
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+ *tbuf++ = tmp;
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+ } while (--count != 0);
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+ asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
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+}
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+EXPORT_SYMBOL(_insw_ns);
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+
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+void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count)
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+{
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+ const u16 *tbuf = buf;
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+
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+ if (unlikely(count <= 0))
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+ return;
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+ asm volatile("sync");
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+ do {
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+ *port = *tbuf++;
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+ } while (--count != 0);
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+ asm volatile("sync");
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+}
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+EXPORT_SYMBOL(_outsw_ns);
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+
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+void _insl_ns(volatile u32 __iomem *port, void *buf, long count)
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+{
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+ u32 *tbuf = buf;
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+ u32 tmp;
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+
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+ if (unlikely(count <= 0))
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+ return;
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+ asm volatile("sync");
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+ do {
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+ tmp = *port;
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+ asm volatile("eieio");
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+ *tbuf++ = tmp;
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+ } while (--count != 0);
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+ asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
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+}
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+EXPORT_SYMBOL(_insl_ns);
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+
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+void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count)
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+{
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+ const u32 *tbuf = buf;
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+
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+ if (unlikely(count <= 0))
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+ return;
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+ asm volatile("sync");
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+ do {
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+ *port = *tbuf++;
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+ } while (--count != 0);
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+ asm volatile("sync");
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+}
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+EXPORT_SYMBOL(_outsl_ns);
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