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, 72 insertions, 0 deletions

diff --git a/kernel/arch/sh/include/asm/irq.h b/kernel/arch/sh/include/asm/irq.h
new file mode 100644
index 000000000..0e4f532e4
--- /dev/null
+++ b/kernel/arch/sh/include/asm/irq.h
@@ -0,0 +1,72 @@
+#ifndef __ASM_SH_IRQ_H
+#define __ASM_SH_IRQ_H
+
+#include <linux/cpumask.h>
+#include <asm/machvec.h>
+
+/*
+ * Only legacy non-sparseirq platforms have to set a reasonably sane
+ * value here. sparseirq platforms allocate their irq_descs on the fly,
+ * so will expand automatically based on the number of registered IRQs.
+ */
+#ifdef CONFIG_SPARSE_IRQ
+# define NR_IRQS		8
+#else
+# define NR_IRQS		512
+#endif
+
+/*
+ * This is a special IRQ number for indicating that no IRQ has been
+ * triggered and to simply ignore the IRQ dispatch. This is a special
+ * case that can happen with IRQ auto-distribution when multiple CPUs
+ * are woken up and signalled in parallel.
+ */
+#define NO_IRQ_IGNORE		((unsigned int)-1)
+
+/*
+ * Simple Mask Register Support
+ */
+extern void make_maskreg_irq(unsigned int irq);
+extern unsigned short *irq_mask_register;
+
+/*
+ * PINT IRQs
+ */
+void init_IRQ_pint(void);
+void make_imask_irq(unsigned int irq);
+
+static inline int generic_irq_demux(int irq)
+{
+	return irq;
+}
+
+#define irq_demux(irq)		sh_mv.mv_irq_demux(irq)
+
+void init_IRQ(void);
+void migrate_irqs(void);
+
+asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs);
+
+#ifdef CONFIG_IRQSTACKS
+extern void irq_ctx_init(int cpu);
+extern void irq_ctx_exit(int cpu);
+# define __ARCH_HAS_DO_SOFTIRQ
+#else
+# define irq_ctx_init(cpu) do { } while (0)
+# define irq_ctx_exit(cpu) do { } while (0)
+#endif
+
+#ifdef CONFIG_INTC_BALANCING
+extern unsigned int irq_lookup(unsigned int irq);
+extern void irq_finish(unsigned int irq);
+#else
+#define irq_lookup(irq)		(irq)
+#define irq_finish(irq)		do { } while (0)
+#endif
+
+#include <asm-generic/irq.h>
+#ifdef CONFIG_CPU_SH5
+#include <cpu/irq.h>
+#endif
+
+#endif /* __ASM_SH_IRQ_H */