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>

3 files changed, 147 insertions, 0 deletions

diff --git a/kernel/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h b/kernel/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h
new file mode 100644
index 000000000..091deb170
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-netlogic/cpu-feature-overrides.h
@@ -0,0 +1,56 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2011 Netlogic Microsystems
+ * Copyright (C) 2003 Ralf Baechle
+ */
+#ifndef __ASM_MACH_NETLOGIC_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_NETLOGIC_CPU_FEATURE_OVERRIDES_H
+
+#define cpu_has_4kex		1
+#define cpu_has_4k_cache	1
+#define cpu_has_watch		1
+#define cpu_has_mips16		0
+#define cpu_has_counter		1
+#define cpu_has_divec		1
+#define cpu_has_vce		0
+#define cpu_has_cache_cdex_p	0
+#define cpu_has_cache_cdex_s	0
+#define cpu_has_prefetch	1
+#define cpu_has_mcheck		1
+#define cpu_has_ejtag		1
+
+#define cpu_has_llsc		1
+#define cpu_has_vtag_icache	0
+#define cpu_has_ic_fills_f_dc	1
+#define cpu_has_dsp		0
+#define cpu_has_dsp2		0
+#define cpu_has_mipsmt		0
+#define cpu_icache_snoops_remote_store	1
+
+#define cpu_has_64bits		1
+
+#define cpu_has_mips32r1	1
+#define cpu_has_mips64r1	1
+
+#define cpu_has_inclusive_pcaches	0
+
+#define cpu_dcache_line_size()	32
+#define cpu_icache_line_size()	32
+
+#if defined(CONFIG_CPU_XLR)
+#define cpu_has_userlocal	0
+#define cpu_has_dc_aliases	0
+#define cpu_has_mips32r2	0
+#define cpu_has_mips64r2	0
+#elif defined(CONFIG_CPU_XLP)
+#define cpu_has_userlocal	1
+#define cpu_has_mips32r2	1
+#define cpu_has_mips64r2	1
+#else
+#error "Unknown Netlogic CPU"
+#endif
+
+#endif /* __ASM_MACH_NETLOGIC_CPU_FEATURE_OVERRIDES_H */
diff --git a/kernel/arch/mips/include/asm/mach-netlogic/irq.h b/kernel/arch/mips/include/asm/mach-netlogic/irq.h
new file mode 100644
index 000000000..c0dbd530c
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-netlogic/irq.h
@@ -0,0 +1,17 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2011 Netlogic Microsystems.
+ */
+#ifndef __ASM_NETLOGIC_IRQ_H
+#define __ASM_NETLOGIC_IRQ_H
+
+#include <asm/mach-netlogic/multi-node.h>
+#define NLM_IRQS_PER_NODE	1024
+#define NR_IRQS			(NLM_IRQS_PER_NODE * NLM_NR_NODES)
+
+#define MIPS_CPU_IRQ_BASE	0
+
+#endif /* __ASM_NETLOGIC_IRQ_H */
diff --git a/kernel/arch/mips/include/asm/mach-netlogic/multi-node.h b/kernel/arch/mips/include/asm/mach-netlogic/multi-node.h
new file mode 100644
index 000000000..8bdf47e29
--- /dev/null
+++ b/kernel/arch/mips/include/asm/mach-netlogic/multi-node.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2003-2012 Broadcom Corporation
+ * All Rights Reserved
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the Broadcom
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _NETLOGIC_MULTI_NODE_H_
+#define _NETLOGIC_MULTI_NODE_H_
+
+#ifndef CONFIG_NLM_MULTINODE
+#define NLM_NR_NODES		1
+#else
+#if defined(CONFIG_NLM_MULTINODE_2)
+#define NLM_NR_NODES		2
+#elif defined(CONFIG_NLM_MULTINODE_4)
+#define NLM_NR_NODES		4
+#else
+#define NLM_NR_NODES		1
+#endif
+#endif
+
+#define NLM_THREADS_PER_CORE	4
+
+struct nlm_soc_info {
+	unsigned long	coremask;	/* cores enabled on the soc */
+	unsigned long	ebase;		/* not used now */
+	uint64_t	irqmask;	/* EIMR for the node */
+	uint64_t	sysbase;	/* only for XLP - sys block base */
+	uint64_t	picbase;	/* PIC block base */
+	spinlock_t	piclock;	/* lock for PIC access */
+	cpumask_t	cpumask;	/* logical cpu mask for node */
+	unsigned int	socbus;
+};
+
+extern struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
+#define nlm_get_node(i)		(&nlm_nodes[i])
+#define nlm_node_present(n)	((n) >= 0 && (n) < NLM_NR_NODES && \
+					nlm_get_node(n)->coremask != 0)
+#ifdef CONFIG_CPU_XLR
+#define nlm_current_node()	(&nlm_nodes[0])
+#else
+#define nlm_current_node()	(&nlm_nodes[nlm_nodeid()])
+#endif
+void nlm_node_init(int node);
+
+#endif