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, 104 insertions, 0 deletions

diff --git a/kernel/arch/sh/mm/nommu.c b/kernel/arch/sh/mm/nommu.c
new file mode 100644
index 000000000..36312d254
--- /dev/null
+++ b/kernel/arch/sh/mm/nommu.c
@@ -0,0 +1,104 @@
+/*
+ * arch/sh/mm/nommu.c
+ *
+ * Various helper routines and stubs for MMUless SH.
+ *
+ * Copyright (C) 2002 - 2009 Paul Mundt
+ *
+ * Released under the terms of the GNU GPL v2.0.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <asm/pgtable.h>
+#include <asm/tlbflush.h>
+#include <asm/page.h>
+#include <asm/uaccess.h>
+
+/*
+ * Nothing too terribly exciting here ..
+ */
+void copy_page(void *to, void *from)
+{
+	memcpy(to, from, PAGE_SIZE);
+}
+
+__kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n)
+{
+	memcpy(to, from, n);
+	return 0;
+}
+
+__kernel_size_t __clear_user(void *to, __kernel_size_t n)
+{
+	memset(to, 0, n);
+	return 0;
+}
+
+void local_flush_tlb_all(void)
+{
+	BUG();
+}
+
+void local_flush_tlb_mm(struct mm_struct *mm)
+{
+	BUG();
+}
+
+void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+			    unsigned long end)
+{
+	BUG();
+}
+
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
+{
+	BUG();
+}
+
+void local_flush_tlb_one(unsigned long asid, unsigned long page)
+{
+	BUG();
+}
+
+void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+	BUG();
+}
+
+void __flush_tlb_global(void)
+{
+}
+
+void __update_tlb(struct vm_area_struct *vma, unsigned long address, pte_t pte)
+{
+}
+
+void __init kmap_coherent_init(void)
+{
+}
+
+void *kmap_coherent(struct page *page, unsigned long addr)
+{
+	BUG();
+	return NULL;
+}
+
+void kunmap_coherent(void *kvaddr)
+{
+	BUG();
+}
+
+void __init page_table_range_init(unsigned long start, unsigned long end,
+				  pgd_t *pgd_base)
+{
+}
+
+void __set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t prot)
+{
+}
+
+void pgtable_cache_init(void)
+{
+}