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, 548 insertions, 0 deletions

diff --git a/kernel/arch/m32r/boot/compressed/Makefile b/kernel/arch/m32r/boot/compressed/Makefile
new file mode 100644
index 000000000..01729c297
--- /dev/null
+++ b/kernel/arch/m32r/boot/compressed/Makefile
@@ -0,0 +1,51 @@
+#
+# linux/arch/m32r/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
+		   vmlinux.bin.lzma head.o misc.o piggy.o vmlinux.lds
+
+OBJECTS = $(obj)/head.o $(obj)/misc.o
+
+#
+# IMAGE_OFFSET is the load offset of the compression loader
+#
+#IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_MEMORY_START)+0x2000])
+#IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_MEMORY_START)+0x00400000])
+
+LDFLAGS_vmlinux := -T
+
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(OBJECTS) $(obj)/piggy.o FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,bzip2)
+
+$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,lzma)
+
+CFLAGS_misc.o += -fpic
+
+ifdef CONFIG_MMU
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-m32r-linux -T
+else
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-m32r -T
+endif
+
+OBJCOPYFLAGS += -R .empty_zero_page
+
+suffix-$(CONFIG_KERNEL_GZIP)	= gz
+suffix-$(CONFIG_KERNEL_BZIP2)	= bz2
+suffix-$(CONFIG_KERNEL_LZMA)	= lzma
+
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
+	$(call if_changed,ld)
diff --git a/kernel/arch/m32r/boot/compressed/boot.h b/kernel/arch/m32r/boot/compressed/boot.h
new file mode 100644
index 000000000..9272e38d1
--- /dev/null
+++ b/kernel/arch/m32r/boot/compressed/boot.h
@@ -0,0 +1,59 @@
+/*
+ * 1. load vmlinuz
+ *
+ * CONFIG_MEMORY_START  	+-----------------------+
+ *				|        vmlinuz	|
+ *				+-----------------------+
+ * 2. decompressed
+ *
+ * CONFIG_MEMORY_START  	+-----------------------+
+ *				|        vmlinuz	|
+ *				+-----------------------+
+ *				|			|
+ * BOOT_RELOC_ADDR		+-----------------------+
+ *				|		 	|
+ * KERNEL_DECOMPRESS_ADDR 	+-----------------------+
+ *				|  	vmlinux		|
+ *				+-----------------------+
+ *
+ * 3. relocate copy & jump code
+ *
+ * CONFIG_MEMORY_START  	+-----------------------+
+ *				|        vmlinuz	|
+ *				+-----------------------+
+ *				|			|
+ * BOOT_RELOC_ADDR		+-----------------------+
+ *				|    boot(copy&jump)	|
+ * KERNEL_DECOMPRESS_ADDR 	+-----------------------+
+ *				|  	vmlinux		|
+ *				+-----------------------+
+ *
+ * 4. relocate decompressed kernel
+ *
+ * CONFIG_MEMORY_START  	+-----------------------+
+ *				|        vmlinux	|
+ *				+-----------------------+
+ *				|			|
+ * BOOT_RELOC_ADDR		+-----------------------+
+ *				|     boot(copy&jump) 	|
+ * KERNEL_DECOMPRESS_ADDR 	+-----------------------+
+ *				|  			|
+ *				+-----------------------+
+ *
+ */
+#ifdef __ASSEMBLY__
+#define __val(x)	x
+#else
+#define __val(x)	(x)
+#endif
+
+#define DECOMPRESS_OFFSET_BASE	__val(0x00900000)
+#define BOOT_RELOC_SIZE		__val(0x00001000)
+
+#define KERNEL_EXEC_ADDR	__val(CONFIG_MEMORY_START)
+#define KERNEL_DECOMPRESS_ADDR	__val(CONFIG_MEMORY_START + \
+				      DECOMPRESS_OFFSET_BASE + BOOT_RELOC_SIZE)
+#define KERNEL_ENTRY		__val(CONFIG_MEMORY_START + 0x1000)
+
+#define BOOT_EXEC_ADDR		__val(CONFIG_MEMORY_START)
+#define BOOT_RELOC_ADDR		__val(CONFIG_MEMORY_START + DECOMPRESS_OFFSET_BASE)
diff --git a/kernel/arch/m32r/boot/compressed/head.S b/kernel/arch/m32r/boot/compressed/head.S
new file mode 100644
index 000000000..95a0563ff
--- /dev/null
+++ b/kernel/arch/m32r/boot/compressed/head.S
@@ -0,0 +1,176 @@
+/*
+ *  linux/arch/m32r/boot/compressed/head.S
+ *
+ *  Copyright (c) 2001-2003	Hiroyuki Kondo, Hirokazu Takata,
+ *				Hitoshi Yamamoto, Takeo Takahashi
+ *  Copyright (c) 2004		Hirokazu Takata
+ */
+
+	.text
+#include <linux/linkage.h>
+#include <asm/addrspace.h>
+#include <asm/page.h>
+#include <asm/assembler.h>
+
+	/*
+	 * This code can be loaded anywhere, as long as output will not
+	 * overlap it.
+	 *
+	 * NOTE: This head.S should *NOT* be compiled with -fpic.
+	 *
+	 */
+
+	.global	startup
+	.global __bss_start, _ebss, end, zimage_data, zimage_len
+	__ALIGN
+startup:
+	ldi	r0, #0x0000			/* SPI, disable EI */
+	mvtc	r0, psw
+
+	ldi	r12, #-8
+	bl	1f
+	.fillinsn
+1:
+	seth	r1, #high(CONFIG_MEMORY_START + 0x00400000) /* Start address */
+	add	r12, r14				/* Real address */
+	sub	r12, r1					/* difference */
+
+	.global got_len
+	seth	r3, #high(_GLOBAL_OFFSET_TABLE_+8)
+	or3	r3, r3, #low(_GLOBAL_OFFSET_TABLE_+12)
+	add	r3, r14
+
+	/* Update the contents of global offset table */
+	ldi	r1, #low(got_len)
+	srli	r1, #2
+	beqz	r1, 2f
+	.fillinsn
+1:
+	ld	r2, @r3
+	add	r2, r12
+	st	r2, @r3
+	addi	r3, #4
+	addi	r1, #-1
+	bnez	r1, 1b
+	.fillinsn
+2:
+	/* XXX: resolve plt */
+
+/*
+ * Clear BSS first so that there are no surprises...
+ */
+#ifdef CONFIG_ISA_DUAL_ISSUE
+	seth	r2, #high(__bss_start)
+	or3	r2, r2, #low(__bss_start)
+	add	r2, r12
+	seth	r3, #high(_ebss)
+	or3	r3, r3, #low(_ebss)
+	add	r3, r12
+	sub	r3, r2
+
+	; R4 = BSS size in longwords (rounded down)
+	mv	r4, r3		    ||	ldi	r1, #0
+	srli	r4, #4		    ||	addi	r2, #-4
+	beqz	r4, .Lendloop1
+.Lloop1:
+#ifndef CONFIG_CHIP_M32310
+	; Touch memory for the no-write-allocating cache.
+	ld	r0, @(4,r2)
+#endif
+	st	r1, @+r2	    ||	addi	r4, #-1
+	st	r1, @+r2
+	st	r1, @+r2
+	st	r1, @+r2	    ||	cmpeq	r1, r4	; R4 = 0?
+	bnc	.Lloop1
+.Lendloop1:
+	and3	r4, r3, #15
+	addi	r2, #4
+	beqz	r4, .Lendloop2
+.Lloop2:
+	stb	r1, @r2		    ||	addi	r4, #-1
+	addi	r2, #1
+	bnez	r4, .Lloop2
+.Lendloop2:
+
+#else /* not CONFIG_ISA_DUAL_ISSUE */
+	seth	r2, #high(__bss_start)
+	or3	r2, r2, #low(__bss_start)
+	add	r2, r12
+	seth	r3, #high(_ebss)
+	or3	r3, r3, #low(_ebss)
+	add	r3, r12
+	sub	r3, r2
+	mv	r4, r3
+	srli	r4, #2		; R4 = BSS size in longwords (rounded down)
+	ldi	r1, #0		; clear R1 for longwords store
+	addi	r2, #-4		; account for pre-inc store
+	beqz	r4, .Lendloop1	; any more to go?
+.Lloop1:
+	st	r1, @+r2	; yep, zero out another longword
+	addi	r4, #-1		; decrement count
+	bnez	r4, .Lloop1	; go do some more
+.Lendloop1:
+
+#endif /* not CONFIG_ISA_DUAL_ISSUE */
+
+	seth	r1, #high(end)
+	or3	r1, r1, #low(end)
+	add	r1, r12
+	mv	sp, r1
+
+/*
+ * decompress the kernel
+ */
+	mv	r0, sp
+	srli	r0, 31				/* MMU is ON or OFF */
+        seth	r1, #high(zimage_data)
+        or3	r1, r1, #low(zimage_data)
+	add	r1, r12
+        seth	r2, #high(zimage_len)
+        or3	r2, r2, #low(zimage_len)
+	mv	r3, sp
+
+	bl	decompress_kernel
+
+#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_VDEC2)
+	/* Cache flush */
+	ldi	r0, -1
+	ldi	r1, 0xd0	; invalidate i-cache, copy back d-cache
+	stb	r1, @r0
+#elif defined(CONFIG_CHIP_M32102)
+	/* Cache flush */
+	ldi	r0, -2
+	ldi	r1, 0x0100	; invalidate
+	stb	r1, @r0
+#elif defined(CONFIG_CHIP_M32104)
+	/* Cache flush */
+	ldi	r0, -2
+	ldi	r1, 0x0700	; invalidate i-cache, copy back d-cache
+	sth	r1, @r0
+#else
+#error "put your cache flush function, please"
+#endif
+
+	mv	r0, sp
+	srli	r0, 31				/* MMU is ON or OFF */
+	slli	r0, 31
+	or3	r0, r0, #0x2000
+	seth	r1, #high(CONFIG_MEMORY_START)
+	or	r0, r1
+	jmp	r0
+
+	.balign 512
+fake_headers_as_bzImage:
+	.short	0
+	.ascii	"HdrS"
+	.short	0x0202
+	.short	0
+	.short	0
+	.byte	0x00, 0x10
+	.short	0
+	.byte	0
+	.byte	1
+	.byte	0x00, 0x80
+	.long	0
+	.long	0
+
diff --git a/kernel/arch/m32r/boot/compressed/install.sh b/kernel/arch/m32r/boot/compressed/install.sh
new file mode 100644
index 000000000..16e5a0a13
--- /dev/null
+++ b/kernel/arch/m32r/boot/compressed/install.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+#
+# arch/sh/boot/install.sh
+#
+# 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) 1995 by Linus Torvalds
+#
+# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
+# Adapted from code in arch/i386/boot/install.sh by Russell King
+# Adapted from code in arch/arm/boot/install.sh by Stuart Menefy
+# Adapted from code in arch/sh/boot/install.sh by Takeo Takahashi
+#
+# "make install" script for sh architecture
+#
+# Arguments:
+#   $1 - kernel version
+#   $2 - kernel image file
+#   $3 - kernel map file
+#   $4 - default install path (blank if root directory)
+#
+
+# User may have a custom install script
+
+if [ -x /sbin/${INSTALLKERNEL} ]; then
+  exec /sbin/${INSTALLKERNEL} "$@"
+fi
+
+if [ "$2" = "zImage" ]; then
+# Compressed install
+  echo "Installing compressed kernel"
+  if [ -f $4/vmlinuz-$1 ]; then
+    mv $4/vmlinuz-$1 $4/vmlinuz.old
+  fi
+
+  if [ -f $4/System.map-$1 ]; then
+    mv $4/System.map-$1 $4/System.old
+  fi
+
+  cat $2 > $4/vmlinuz-$1
+  cp $3 $4/System.map-$1
+else
+# Normal install
+  echo "Installing normal kernel"
+  if [ -f $4/vmlinux-$1 ]; then
+    mv $4/vmlinux-$1 $4/vmlinux.old
+  fi
+
+  if [ -f $4/System.map ]; then
+    mv $4/System.map $4/System.old
+  fi
+
+  cat $2 > $4/vmlinux-$1
+  cp $3 $4/System.map
+fi
diff --git a/kernel/arch/m32r/boot/compressed/m32r_sio.c b/kernel/arch/m32r/boot/compressed/m32r_sio.c
new file mode 100644
index 000000000..01d877c68
--- /dev/null
+++ b/kernel/arch/m32r/boot/compressed/m32r_sio.c
@@ -0,0 +1,75 @@
+/*
+ * arch/m32r/boot/compressed/m32r_sio.c
+ *
+ * 2003-02-12:	Takeo Takahashi
+ * 2006-11-30:	OPSPUT support by Kazuhiro Inaoka
+ *
+ */
+
+#include <asm/processor.h>
+
+static void putc(char c);
+
+static int puts(const char *s)
+{
+	char c;
+	while ((c = *s++)) putc(c);
+	return 0;
+}
+
+#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT)
+#include <asm/m32r.h>
+#include <asm/io.h>
+
+#define USE_FPGA_MAP	0
+
+#if USE_FPGA_MAP
+/*
+ * fpga configuration program uses MMU, and define map as same as
+ * M32104 uT-Engine board.
+ */
+#define BOOT_SIO0STS	(volatile unsigned short *)(0x02c00000 + 0x20006)
+#define BOOT_SIO0TXB	(volatile unsigned short *)(0x02c00000 + 0x2000c)
+#else
+#undef PLD_BASE
+#if defined(CONFIG_PLAT_OPSPUT)
+#define PLD_BASE	0x1cc00000
+#else
+#define PLD_BASE	0xa4c00000
+#endif
+#define BOOT_SIO0STS	PLD_ESIO0STS
+#define BOOT_SIO0TXB	PLD_ESIO0TXB
+#endif
+
+static void putc(char c)
+{
+	while ((*BOOT_SIO0STS & 0x3) != 0x3)
+		cpu_relax();
+	if (c == '\n') {
+		*BOOT_SIO0TXB = '\r';
+		while ((*BOOT_SIO0STS & 0x3) != 0x3)
+			cpu_relax();
+	}
+	*BOOT_SIO0TXB = c;
+}
+#else /* !(CONFIG_PLAT_M32700UT) */
+#if defined(CONFIG_PLAT_MAPPI2)
+#define SIO0STS	(volatile unsigned short *)(0xa0efd000 + 14)
+#define SIO0TXB	(volatile unsigned short *)(0xa0efd000 + 30)
+#else
+#define SIO0STS	(volatile unsigned short *)(0x00efd000 + 14)
+#define SIO0TXB	(volatile unsigned short *)(0x00efd000 + 30)
+#endif
+
+static void putc(char c)
+{
+	while ((*SIO0STS & 0x1) == 0)
+		cpu_relax();
+	if (c == '\n') {
+		*SIO0TXB = '\r';
+		while ((*SIO0STS & 0x1) == 0)
+			cpu_relax();
+	}
+	*SIO0TXB = c;
+}
+#endif
diff --git a/kernel/arch/m32r/boot/compressed/misc.c b/kernel/arch/m32r/boot/compressed/misc.c
new file mode 100644
index 000000000..28a09529f
--- /dev/null
+++ b/kernel/arch/m32r/boot/compressed/misc.c
@@ -0,0 +1,91 @@
+/*
+ * arch/m32r/boot/compressed/misc.c
+ *
+ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Adapted for SH by Stuart Menefy, Aug 1999
+ *
+ * 2003-02-12:	Support M32R by Takeo Takahashi
+ */
+
+/*
+ * gzip declarations
+ */
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#define memzero(s, n)     memset ((s), 0, (n))
+
+static void error(char *m);
+
+#include "m32r_sio.c"
+
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#ifdef CONFIG_KERNEL_BZIP2
+void *memset(void *s, int c, size_t n)
+{
+	char *ss = s;
+
+	while (n--)
+	       	*ss++ = c;
+	return s;
+}
+#endif
+
+#ifdef CONFIG_KERNEL_GZIP
+void *memcpy(void *dest, const void *src, size_t n)
+{
+	char *d = dest;
+	const char *s = src;
+	while (n--)
+		*d++ = *s++;
+
+	return dest;
+}
+
+#define BOOT_HEAP_SIZE             0x10000
+#include "../../../../lib/decompress_inflate.c"
+#endif
+
+#ifdef CONFIG_KERNEL_BZIP2
+#define BOOT_HEAP_SIZE             0x400000
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#define BOOT_HEAP_SIZE             0x10000
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+static void error(char *x)
+{
+	puts("\n\n");
+	puts(x);
+	puts("\n\n -- System halted");
+
+	while(1);	/* Halt */
+}
+
+void
+decompress_kernel(int mmu_on, unsigned char *zimage_data,
+		  unsigned int zimage_len, unsigned long heap)
+{
+	unsigned char *input_data = zimage_data;
+	int input_len = zimage_len;
+	unsigned char *output_data;
+
+	output_data = (unsigned char *)CONFIG_MEMORY_START + 0x2000
+		+ (mmu_on ? 0x80000000 : 0);
+	free_mem_ptr = heap;
+	free_mem_end_ptr = free_mem_ptr + BOOT_HEAP_SIZE;
+
+	puts("\nDecompressing Linux... ");
+	decompress(input_data, input_len, NULL, NULL, output_data, NULL, error);
+	puts("done.\nBooting the kernel.\n");
+}
diff --git a/kernel/arch/m32r/boot/compressed/vmlinux.lds.S b/kernel/arch/m32r/boot/compressed/vmlinux.lds.S
new file mode 100644
index 000000000..dd11963f6
--- /dev/null
+++ b/kernel/arch/m32r/boot/compressed/vmlinux.lds.S
@@ -0,0 +1,30 @@
+
+OUTPUT_ARCH(m32r)
+ENTRY(startup)
+SECTIONS
+{
+  . = CONFIG_MEMORY_START + 0x00400000;
+
+  _text = .;
+  .text : { *(.text) } = 0
+  .rodata : { *(.rodata) *(.rodata.*) }
+  _etext = .;
+
+  . = ALIGN(32 / 8);
+  .data : { *(.data) }
+  . = ALIGN(32 / 8);
+  _got = .;
+  .got  : { *(.got) _egot = .; *(.got.*) }
+  _edata  =  .;
+
+  . = ALIGN(32 / 8);
+  __bss_start = .;
+  .bss : { *(.bss) *(.sbss) }
+  . = ALIGN(32 / 8);
+  _ebss = .;
+  . = ALIGN(4096);
+  . += 4096;
+  end = . ;
+
+  got_len = (_egot - _got);
+}
diff --git a/kernel/arch/m32r/boot/compressed/vmlinux.scr b/kernel/arch/m32r/boot/compressed/vmlinux.scr
new file mode 100644
index 000000000..924c7992c
--- /dev/null
+++ b/kernel/arch/m32r/boot/compressed/vmlinux.scr
@@ -0,0 +1,9 @@
+SECTIONS
+{
+  .data : {
+	zimage_data = .;
+	*(.data)
+	zimage_data_end = .;
+	}
+  zimage_len = zimage_data_end - zimage_data;
+}