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, 31 insertions, 0 deletions

diff --git a/kernel/include/linux/irq_cpustat.h b/kernel/include/linux/irq_cpustat.h
new file mode 100644
index 000000000..77e4bac29
--- /dev/null
+++ b/kernel/include/linux/irq_cpustat.h
@@ -0,0 +1,31 @@
+#ifndef __irq_cpustat_h
+#define __irq_cpustat_h
+
+/*
+ * Contains default mappings for irq_cpustat_t, used by almost every
+ * architecture.  Some arch (like s390) have per cpu hardware pages and
+ * they define their own mappings for irq_stat.
+ *
+ * Keith Owens <kaos@ocs.com.au> July 2000.
+ */
+
+
+/*
+ * Simple wrappers reducing source bloat.  Define all irq_stat fields
+ * here, even ones that are arch dependent.  That way we get common
+ * definitions instead of differing sets for each arch.
+ */
+
+#ifndef __ARCH_IRQ_STAT
+extern irq_cpustat_t irq_stat[];		/* defined in asm/hardirq.h */
+#define __IRQ_STAT(cpu, member)	(irq_stat[cpu].member)
+#endif
+
+  /* arch independent irq_stat fields */
+#define local_softirq_pending() \
+	__IRQ_STAT(smp_processor_id(), __softirq_pending)
+
+  /* arch dependent irq_stat fields */
+#define nmi_count(cpu)		__IRQ_STAT((cpu), __nmi_count)	/* i386 */
+
+#endif	/* __irq_cpustat_h */