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, 91 insertions, 0 deletions

diff --git a/kernel/arch/ia64/sn/include/xtalk/hubdev.h b/kernel/arch/ia64/sn/include/xtalk/hubdev.h
new file mode 100644
index 000000000..8182583c7
--- /dev/null
+++ b/kernel/arch/ia64/sn/include/xtalk/hubdev.h
@@ -0,0 +1,91 @@
+/*
+ * 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) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
+ */
+#ifndef _ASM_IA64_SN_XTALK_HUBDEV_H
+#define _ASM_IA64_SN_XTALK_HUBDEV_H
+
+#include "xtalk/xwidgetdev.h"
+
+#define HUB_WIDGET_ID_MAX 0xf
+#define DEV_PER_WIDGET (2*2*8)
+#define IIO_ITTE_WIDGET_BITS    4       /* size of widget field */
+#define IIO_ITTE_WIDGET_MASK    ((1<<IIO_ITTE_WIDGET_BITS)-1)
+#define IIO_ITTE_WIDGET_SHIFT   8
+
+#define IIO_ITTE_WIDGET(itte)	\
+	(((itte) >> IIO_ITTE_WIDGET_SHIFT) & IIO_ITTE_WIDGET_MASK)
+
+/*
+ * Use the top big window as a surrogate for the first small window
+ */
+#define SWIN0_BIGWIN            HUB_NUM_BIG_WINDOW
+#define IIO_NUM_ITTES   7
+#define HUB_NUM_BIG_WINDOW      (IIO_NUM_ITTES - 1)
+
+/* This struct is shared between the PROM and the kernel.
+ * Changes to this struct will require corresponding changes to the kernel.
+ */
+struct sn_flush_device_common {
+	int sfdl_bus;
+	int sfdl_slot;
+	int sfdl_pin;
+	struct common_bar_list {
+		unsigned long start;
+		unsigned long end;
+	} sfdl_bar_list[6];
+	unsigned long sfdl_force_int_addr;
+	unsigned long sfdl_flush_value;
+	volatile unsigned long *sfdl_flush_addr;
+	u32 sfdl_persistent_busnum;
+	u32 sfdl_persistent_segment;
+	struct pcibus_info *sfdl_pcibus_info;
+};
+
+/* This struct is kernel only and is not used by the PROM */
+struct sn_flush_device_kernel {
+	spinlock_t sfdl_flush_lock;
+	struct sn_flush_device_common *common;
+};
+
+/* 01/16/06 This struct is the old PROM/kernel struct and needs to be included
+ * for older official PROMs to function on the new kernel base.  This struct
+ * will be removed when the next official PROM release occurs. */
+
+struct sn_flush_device_war {
+	struct sn_flush_device_common common;
+	u32 filler; /* older PROMs expect the default size of a spinlock_t */
+};
+
+/*
+ * **widget_p - Used as an array[wid_num][device] of sn_flush_device_kernel.
+ */
+struct sn_flush_nasid_entry  {
+	struct sn_flush_device_kernel **widget_p; // Used as an array of wid_num
+	u64 iio_itte[8];
+};
+
+struct hubdev_info {
+	geoid_t				hdi_geoid;
+	short				hdi_nasid;
+	short				hdi_peer_nasid;   /* Dual Porting Peer */
+
+	struct sn_flush_nasid_entry	hdi_flush_nasid_list;
+	struct xwidget_info		hdi_xwidget_info[HUB_WIDGET_ID_MAX + 1];
+
+
+	void				*hdi_nodepda;
+	void				*hdi_node_vertex;
+	u32				max_segment_number;
+	u32				max_pcibus_number;
+};
+
+extern void hubdev_init_node(nodepda_t *, cnodeid_t);
+extern void hub_error_init(struct hubdev_info *);
+extern void ice_error_init(struct hubdev_info *);
+
+
+#endif /* _ASM_IA64_SN_XTALK_HUBDEV_H */