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, 51 insertions, 0 deletions

diff --git a/kernel/arch/sparc/include/asm/kprobes.h b/kernel/arch/sparc/include/asm/kprobes.h
new file mode 100644
index 000000000..a145d798e
--- /dev/null
+++ b/kernel/arch/sparc/include/asm/kprobes.h
@@ -0,0 +1,51 @@
+#ifndef _SPARC64_KPROBES_H
+#define _SPARC64_KPROBES_H
+
+#include <linux/types.h>
+#include <linux/percpu.h>
+
+typedef u32 kprobe_opcode_t;
+
+#define BREAKPOINT_INSTRUCTION   0x91d02070 /* ta 0x70 */
+#define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */
+#define MAX_INSN_SIZE 2
+
+#define kretprobe_blacklist_size 0
+
+#define arch_remove_kprobe(p)	do {} while (0)
+
+#define flush_insn_slot(p)		\
+do { 	flushi(&(p)->ainsn.insn[0]);	\
+	flushi(&(p)->ainsn.insn[1]);	\
+} while (0)
+
+void kretprobe_trampoline(void);
+
+/* Architecture specific copy of original instruction*/
+struct arch_specific_insn {
+	/* copy of the original instruction */
+	kprobe_opcode_t insn[MAX_INSN_SIZE];
+};
+
+struct prev_kprobe {
+	struct kprobe *kp;
+	unsigned long status;
+	unsigned long orig_tnpc;
+	unsigned long orig_tstate_pil;
+};
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+	unsigned long kprobe_status;
+	unsigned long kprobe_orig_tnpc;
+	unsigned long kprobe_orig_tstate_pil;
+	struct pt_regs jprobe_saved_regs;
+	struct prev_kprobe prev_kprobe;
+};
+
+int kprobe_exceptions_notify(struct notifier_block *self,
+			     unsigned long val, void *data);
+int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
+asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
+				      struct pt_regs *regs);
+#endif /* _SPARC64_KPROBES_H */