Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 164 insertions, 0 deletions

diff --git a/kernel/arch/ia64/lib/io.c b/kernel/arch/ia64/lib/io.c
new file mode 100644
index 000000000..bcd16f8ad
--- /dev/null
+++ b/kernel/arch/ia64/lib/io.c
@@ -0,0 +1,164 @@
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include <asm/io.h>
+
+/*
+ * Copy data from IO memory space to "real" memory space.
+ * This needs to be optimized.
+ */
+void memcpy_fromio(void *to, const volatile void __iomem *from, long count)
+{
+	char *dst = to;
+
+	while (count) {
+		count--;
+		*dst++ = readb(from++);
+	}
+}
+EXPORT_SYMBOL(memcpy_fromio);
+
+/*
+ * Copy data from "real" memory space to IO memory space.
+ * This needs to be optimized.
+ */
+void memcpy_toio(volatile void __iomem *to, const void *from, long count)
+{
+	const char *src = from;
+
+	while (count) {
+		count--;
+		writeb(*src++, to++);
+	}
+}
+EXPORT_SYMBOL(memcpy_toio);
+
+/*
+ * "memset" on IO memory space.
+ * This needs to be optimized.
+ */
+void memset_io(volatile void __iomem *dst, int c, long count)
+{
+	unsigned char ch = (char)(c & 0xff);
+
+	while (count) {
+		count--;
+		writeb(ch, dst);
+		dst++;
+	}
+}
+EXPORT_SYMBOL(memset_io);
+
+#ifdef CONFIG_IA64_GENERIC
+
+#undef __ia64_inb
+#undef __ia64_inw
+#undef __ia64_inl
+#undef __ia64_outb
+#undef __ia64_outw
+#undef __ia64_outl
+#undef __ia64_readb
+#undef __ia64_readw
+#undef __ia64_readl
+#undef __ia64_readq
+#undef __ia64_readb_relaxed
+#undef __ia64_readw_relaxed
+#undef __ia64_readl_relaxed
+#undef __ia64_readq_relaxed
+#undef __ia64_writeb
+#undef __ia64_writew
+#undef __ia64_writel
+#undef __ia64_writeq
+#undef __ia64_mmiowb
+
+unsigned int
+__ia64_inb (unsigned long port)
+{
+	return ___ia64_inb(port);
+}
+
+unsigned int
+__ia64_inw (unsigned long port)
+{
+	return ___ia64_inw(port);
+}
+
+unsigned int
+__ia64_inl (unsigned long port)
+{
+	return ___ia64_inl(port);
+}
+
+void
+__ia64_outb (unsigned char val, unsigned long port)
+{
+	___ia64_outb(val, port);
+}
+
+void
+__ia64_outw (unsigned short val, unsigned long port)
+{
+	___ia64_outw(val, port);
+}
+
+void
+__ia64_outl (unsigned int val, unsigned long port)
+{
+	___ia64_outl(val, port);
+}
+
+unsigned char
+__ia64_readb (void __iomem *addr)
+{
+	return ___ia64_readb (addr);
+}
+
+unsigned short
+__ia64_readw (void __iomem *addr)
+{
+	return ___ia64_readw (addr);
+}
+
+unsigned int
+__ia64_readl (void __iomem *addr)
+{
+	return ___ia64_readl (addr);
+}
+
+unsigned long
+__ia64_readq (void __iomem *addr)
+{
+	return ___ia64_readq (addr);
+}
+
+unsigned char
+__ia64_readb_relaxed (void __iomem *addr)
+{
+	return ___ia64_readb (addr);
+}
+
+unsigned short
+__ia64_readw_relaxed (void __iomem *addr)
+{
+	return ___ia64_readw (addr);
+}
+
+unsigned int
+__ia64_readl_relaxed (void __iomem *addr)
+{
+	return ___ia64_readl (addr);
+}
+
+unsigned long
+__ia64_readq_relaxed (void __iomem *addr)
+{
+	return ___ia64_readq (addr);
+}
+
+void
+__ia64_mmiowb(void)
+{
+	___ia64_mmiowb();
+}
+
+#endif /* CONFIG_IA64_GENERIC */