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>

8 files changed, 290 insertions, 0 deletions

diff --git a/kernel/arch/nios2/include/uapi/asm/Kbuild b/kernel/arch/nios2/include/uapi/asm/Kbuild
new file mode 100644
index 000000000..e0bb972a5
--- /dev/null
+++ b/kernel/arch/nios2/include/uapi/asm/Kbuild
@@ -0,0 +1,5 @@
+include include/uapi/asm-generic/Kbuild.asm
+
+header-y += elf.h
+
+generic-y += ucontext.h
diff --git a/kernel/arch/nios2/include/uapi/asm/byteorder.h b/kernel/arch/nios2/include/uapi/asm/byteorder.h
new file mode 100644
index 000000000..3ab5dc20d
--- /dev/null
+++ b/kernel/arch/nios2/include/uapi/asm/byteorder.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2009   Thomas Chou <thomas@wytron.com.tw>
+ * Copyright (C) 2004   Microtronix Datacom Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ */
+
+#ifndef _ASM_NIOS2_BYTEORDER_H
+#define _ASM_NIOS2_BYTEORDER_H
+
+#include <linux/byteorder/little_endian.h>
+
+#endif
diff --git a/kernel/arch/nios2/include/uapi/asm/elf.h b/kernel/arch/nios2/include/uapi/asm/elf.h
new file mode 100644
index 000000000..6f06d3b29
--- /dev/null
+++ b/kernel/arch/nios2/include/uapi/asm/elf.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#ifndef _UAPI_ASM_NIOS2_ELF_H
+#define _UAPI_ASM_NIOS2_ELF_H
+
+#include <linux/ptrace.h>
+
+/* Relocation types */
+#define R_NIOS2_NONE		0
+#define R_NIOS2_S16		1
+#define R_NIOS2_U16		2
+#define R_NIOS2_PCREL16		3
+#define R_NIOS2_CALL26		4
+#define R_NIOS2_IMM5		5
+#define R_NIOS2_CACHE_OPX	6
+#define R_NIOS2_IMM6		7
+#define R_NIOS2_IMM8		8
+#define R_NIOS2_HI16		9
+#define R_NIOS2_LO16		10
+#define R_NIOS2_HIADJ16		11
+#define R_NIOS2_BFD_RELOC_32	12
+#define R_NIOS2_BFD_RELOC_16	13
+#define R_NIOS2_BFD_RELOC_8	14
+#define R_NIOS2_GPREL		15
+#define R_NIOS2_GNU_VTINHERIT	16
+#define R_NIOS2_GNU_VTENTRY	17
+#define R_NIOS2_UJMP		18
+#define R_NIOS2_CJMP		19
+#define R_NIOS2_CALLR		20
+#define R_NIOS2_ALIGN		21
+/* Keep this the last entry.  */
+#define R_NIOS2_NUM		22
+
+typedef unsigned long elf_greg_t;
+
+#define ELF_NGREG		49
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef unsigned long elf_fpregset_t;
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS32
+#define ELF_DATA	ELFDATA2LSB
+#define ELF_ARCH	EM_ALTERA_NIOS2
+
+#endif /* _UAPI_ASM_NIOS2_ELF_H */
diff --git a/kernel/arch/nios2/include/uapi/asm/ptrace.h b/kernel/arch/nios2/include/uapi/asm/ptrace.h
new file mode 100644
index 000000000..1d35de90a
--- /dev/null
+++ b/kernel/arch/nios2/include/uapi/asm/ptrace.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
+ * Copyright (C) 2004 Microtronix Datacom Ltd
+ *
+ * based on m68k asm/processor.h
+ *
+ * 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.
+ */
+
+#ifndef _UAPI_ASM_NIOS2_PTRACE_H
+#define _UAPI_ASM_NIOS2_PTRACE_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+/*
+ * Register numbers used by 'ptrace' system call interface.
+ */
+
+/* GP registers */
+#define PTR_R0		0
+#define PTR_R1		1
+#define PTR_R2		2
+#define PTR_R3		3
+#define PTR_R4		4
+#define PTR_R5		5
+#define PTR_R6		6
+#define PTR_R7		7
+#define PTR_R8		8
+#define PTR_R9		9
+#define PTR_R10		10
+#define PTR_R11		11
+#define PTR_R12		12
+#define PTR_R13		13
+#define PTR_R14		14
+#define PTR_R15		15
+#define PTR_R16		16
+#define PTR_R17		17
+#define PTR_R18		18
+#define PTR_R19		19
+#define PTR_R20		20
+#define PTR_R21		21
+#define PTR_R22		22
+#define PTR_R23		23
+#define PTR_R24		24
+#define PTR_R25		25
+#define PTR_GP		26
+#define PTR_SP		27
+#define PTR_FP		28
+#define PTR_EA		29
+#define PTR_BA		30
+#define PTR_RA		31
+/* Control registers */
+#define PTR_PC		32
+#define PTR_STATUS	33
+#define PTR_ESTATUS	34
+#define PTR_BSTATUS	35
+#define PTR_IENABLE	36
+#define PTR_IPENDING	37
+#define PTR_CPUID	38
+#define PTR_CTL6	39
+#define PTR_EXCEPTION	40
+#define PTR_PTEADDR	41
+#define PTR_TLBACC	42
+#define PTR_TLBMISC	43
+#define PTR_ECCINJ	44
+#define PTR_BADADDR	45
+#define PTR_CONFIG	46
+#define PTR_MPUBASE	47
+#define PTR_MPUACC	48
+
+#define NUM_PTRACE_REG (PTR_MPUACC + 1)
+
+/* User structures for general purpose registers.  */
+struct user_pt_regs {
+	__u32		regs[49];
+};
+
+#endif /* __ASSEMBLY__ */
+#endif /* _UAPI_ASM_NIOS2_PTRACE_H */
diff --git a/kernel/arch/nios2/include/uapi/asm/sigcontext.h b/kernel/arch/nios2/include/uapi/asm/sigcontext.h
new file mode 100644
index 000000000..b67944a50
--- /dev/null
+++ b/kernel/arch/nios2/include/uapi/asm/sigcontext.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2004, Microtronix Datacom Ltd.
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ */
+
+#ifndef _UAPI__ASM_SIGCONTEXT_H
+#define _UAPI__ASM_SIGCONTEXT_H
+
+#include <linux/types.h>
+
+#define MCONTEXT_VERSION 2
+
+struct sigcontext {
+	int version;
+	unsigned long gregs[32];
+};
+
+#endif
diff --git a/kernel/arch/nios2/include/uapi/asm/signal.h b/kernel/arch/nios2/include/uapi/asm/signal.h
new file mode 100644
index 000000000..f29ee6314
--- /dev/null
+++ b/kernel/arch/nios2/include/uapi/asm/signal.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright Altera Corporation (C) 2013. All rights reserved
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#ifndef _ASM_NIOS2_SIGNAL_H
+#define _ASM_NIOS2_SIGNAL_H
+
+#define SA_RESTORER 0x04000000
+#include <asm-generic/signal.h>
+
+#endif /* _ASM_NIOS2_SIGNAL_H */
diff --git a/kernel/arch/nios2/include/uapi/asm/swab.h b/kernel/arch/nios2/include/uapi/asm/swab.h
new file mode 100644
index 000000000..b4e22ebae
--- /dev/null
+++ b/kernel/arch/nios2/include/uapi/asm/swab.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 Tobias Klauser <tklauser@distanz.ch>
+ * Copyright (C) 2011 Pyramid Technical Consultants, Inc.
+ *
+ * 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.
+ */
+
+#ifndef _ASM_NIOS2_SWAB_H
+#define _ASM_NIOS2_SWAB_H
+
+#include <linux/types.h>
+#include <asm-generic/swab.h>
+
+#ifdef CONFIG_NIOS2_CI_SWAB_SUPPORT
+#ifdef __GNUC__
+
+#define __nios2_swab(x)		\
+	__builtin_custom_ini(CONFIG_NIOS2_CI_SWAB_NO, (x))
+
+static inline __attribute__((const)) __u16 __arch_swab16(__u16 x)
+{
+	return (__u16) __nios2_swab(((__u32) x) << 16);
+}
+#define __arch_swab16 __arch_swab16
+
+static inline __attribute__((const)) __u32 __arch_swab32(__u32 x)
+{
+	return (__u32) __nios2_swab(x);
+}
+#define __arch_swab32 __arch_swab32
+
+#endif /* __GNUC__ */
+#endif /* CONFIG_NIOS2_CI_SWAB_SUPPORT */
+
+#endif /* _ASM_NIOS2_SWAB_H */
diff --git a/kernel/arch/nios2/include/uapi/asm/unistd.h b/kernel/arch/nios2/include/uapi/asm/unistd.h
new file mode 100644
index 000000000..c4bf79510
--- /dev/null
+++ b/kernel/arch/nios2/include/uapi/asm/unistd.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2013 Altera Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+ #define sys_mmap2 sys_mmap_pgoff
+
+/* Use the standard ABI for syscalls */
+#include <asm-generic/unistd.h>
+
+/* Additional Nios II specific syscalls. */
+#define __NR_cacheflush (__NR_arch_specific_syscall)
+__SYSCALL(__NR_cacheflush, sys_cacheflush)