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, 74 insertions, 0 deletions

diff --git a/kernel/arch/ia64/include/asm/meminit.h b/kernel/arch/ia64/include/asm/meminit.h
new file mode 100644
index 000000000..092f1c91b
--- /dev/null
+++ b/kernel/arch/ia64/include/asm/meminit.h
@@ -0,0 +1,74 @@
+#ifndef meminit_h
+#define meminit_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.
+ */
+
+
+/*
+ * Entries defined so far:
+ * 	- boot param structure itself
+ * 	- memory map
+ * 	- initrd (optional)
+ * 	- command line string
+ * 	- kernel code & data
+ * 	- crash dumping code reserved region
+ * 	- Kernel memory map built from EFI memory map
+ * 	- ELF core header
+ *
+ * More could be added if necessary
+ */
+#define IA64_MAX_RSVD_REGIONS 9
+
+struct rsvd_region {
+	u64 start;	/* virtual address of beginning of element */
+	u64 end;	/* virtual address of end of element + 1 */
+};
+
+extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1];
+extern int num_rsvd_regions;
+
+extern void find_memory (void);
+extern void reserve_memory (void);
+extern void find_initrd (void);
+extern int filter_rsvd_memory (u64 start, u64 end, void *arg);
+extern int filter_memory (u64 start, u64 end, void *arg);
+extern unsigned long efi_memmap_init(u64 *s, u64 *e);
+extern int find_max_min_low_pfn (u64, u64, void *);
+
+extern unsigned long vmcore_find_descriptor_size(unsigned long address);
+extern int reserve_elfcorehdr(u64 *start, u64 *end);
+
+/*
+ * For rounding an address to the next IA64_GRANULE_SIZE or order
+ */
+#define GRANULEROUNDDOWN(n)	((n) & ~(IA64_GRANULE_SIZE-1))
+#define GRANULEROUNDUP(n)	(((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1))
+
+#ifdef CONFIG_NUMA
+  extern void call_pernode_memory (unsigned long start, unsigned long len, void *func);
+#else
+# define call_pernode_memory(start, len, func)	(*func)(start, len, 0)
+#endif
+
+#define IGNORE_PFN0	1	/* XXX fix me: ignore pfn 0 until TLB miss handler is updated... */
+
+extern int register_active_ranges(u64 start, u64 len, int nid);
+
+#ifdef CONFIG_VIRTUAL_MEM_MAP
+# define LARGE_GAP	0x40000000 /* Use virtual mem map if hole is > than this */
+  extern unsigned long VMALLOC_END;
+  extern struct page *vmem_map;
+  extern int find_largest_hole(u64 start, u64 end, void *arg);
+  extern int create_mem_map_page_table(u64 start, u64 end, void *arg);
+  extern int vmemmap_find_next_valid_pfn(int, int);
+#else
+static inline int vmemmap_find_next_valid_pfn(int node, int i)
+{
+	return i + 1;
+}
+#endif
+#endif /* meminit_h */