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, 70 insertions, 0 deletions

diff --git a/kernel/arch/sh/include/asm/hw_breakpoint.h b/kernel/arch/sh/include/asm/hw_breakpoint.h
new file mode 100644
index 000000000..ec9ad593c
--- /dev/null
+++ b/kernel/arch/sh/include/asm/hw_breakpoint.h
@@ -0,0 +1,70 @@
+#ifndef __ASM_SH_HW_BREAKPOINT_H
+#define __ASM_SH_HW_BREAKPOINT_H
+
+#include <uapi/asm/hw_breakpoint.h>
+
+#define __ARCH_HW_BREAKPOINT_H
+
+#include <linux/kdebug.h>
+#include <linux/types.h>
+
+struct arch_hw_breakpoint {
+	char		*name; /* Contains name of the symbol to set bkpt */
+	unsigned long	address;
+	u16		len;
+	u16		type;
+};
+
+enum {
+	SH_BREAKPOINT_READ	= (1 << 1),
+	SH_BREAKPOINT_WRITE	= (1 << 2),
+	SH_BREAKPOINT_RW	= SH_BREAKPOINT_READ | SH_BREAKPOINT_WRITE,
+
+	SH_BREAKPOINT_LEN_1	= (1 << 12),
+	SH_BREAKPOINT_LEN_2	= (1 << 13),
+	SH_BREAKPOINT_LEN_4	= SH_BREAKPOINT_LEN_1 | SH_BREAKPOINT_LEN_2,
+	SH_BREAKPOINT_LEN_8	= (1 << 14),
+};
+
+struct sh_ubc {
+	const char	*name;
+	unsigned int	num_events;
+	unsigned int	trap_nr;
+	void		(*enable)(struct arch_hw_breakpoint *, int);
+	void		(*disable)(struct arch_hw_breakpoint *, int);
+	void		(*enable_all)(unsigned long);
+	void		(*disable_all)(void);
+	unsigned long	(*active_mask)(void);
+	unsigned long	(*triggered_mask)(void);
+	void		(*clear_triggered_mask)(unsigned long);
+	struct clk	*clk;	/* optional interface clock / MSTP bit */
+};
+
+struct perf_event;
+struct task_struct;
+struct pmu;
+
+/* Maximum number of UBC channels */
+#define HBP_NUM		2
+
+static inline int hw_breakpoint_slots(int type)
+{
+	return HBP_NUM;
+}
+
+/* arch/sh/kernel/hw_breakpoint.c */
+extern int arch_check_bp_in_kernelspace(struct perf_event *bp);
+extern int arch_validate_hwbkpt_settings(struct perf_event *bp);
+extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
+					   unsigned long val, void *data);
+
+int arch_install_hw_breakpoint(struct perf_event *bp);
+void arch_uninstall_hw_breakpoint(struct perf_event *bp);
+void hw_breakpoint_pmu_read(struct perf_event *bp);
+
+extern void arch_fill_perf_breakpoint(struct perf_event *bp);
+extern int register_sh_ubc(struct sh_ubc *);
+
+extern struct pmu perf_ops_bp;
+
+#endif /* __ASM_SH_HW_BREAKPOINT_H */