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, 78 insertions, 0 deletions

diff --git a/kernel/drivers/misc/sgi-gru/gru.h b/kernel/drivers/misc/sgi-gru/gru.h
new file mode 100644
index 000000000..3ad76cd18
--- /dev/null
+++ b/kernel/drivers/misc/sgi-gru/gru.h
@@ -0,0 +1,78 @@
+/*
+ *  Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License as published by
+ *  the Free Software Foundation; either version 2.1 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef __GRU_H__
+#define __GRU_H__
+
+/*
+ * GRU architectural definitions
+ */
+#define GRU_CACHE_LINE_BYTES		64
+#define GRU_HANDLE_STRIDE		256
+#define GRU_CB_BASE			0
+#define GRU_DS_BASE			0x20000
+
+/*
+ * Size used to map GRU GSeg
+ */
+#if defined(CONFIG_IA64)
+#define GRU_GSEG_PAGESIZE	(256 * 1024UL)
+#elif defined(CONFIG_X86_64)
+#define GRU_GSEG_PAGESIZE	(256 * 1024UL)		/* ZZZ 2MB ??? */
+#else
+#error "Unsupported architecture"
+#endif
+
+/*
+ * Structure for obtaining GRU resource information
+ */
+struct gru_chiplet_info {
+	int	node;
+	int	chiplet;
+	int	blade;
+	int	total_dsr_bytes;
+	int	total_cbr;
+	int	total_user_dsr_bytes;
+	int	total_user_cbr;
+	int	free_user_dsr_bytes;
+	int	free_user_cbr;
+};
+
+/*
+ * Statictics kept for each context.
+ */
+struct gru_gseg_statistics {
+	unsigned long	fmm_tlbmiss;
+	unsigned long	upm_tlbmiss;
+	unsigned long	tlbdropin;
+	unsigned long	context_stolen;
+	unsigned long	reserved[10];
+};
+
+/* Flags for GRU options on the gru_create_context() call */
+/* Select one of the follow 4 options to specify how TLB misses are handled */
+#define GRU_OPT_MISS_DEFAULT	0x0000	/* Use default mode */
+#define GRU_OPT_MISS_USER_POLL	0x0001	/* User will poll CB for faults */
+#define GRU_OPT_MISS_FMM_INTR	0x0002	/* Send interrupt to cpu to
+					   handle fault */
+#define GRU_OPT_MISS_FMM_POLL	0x0003	/* Use system polling thread */
+#define GRU_OPT_MISS_MASK	0x0003	/* Mask for TLB MISS option */
+
+
+
+#endif		/* __GRU_H__ */