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, 47 insertions, 0 deletions

diff --git a/kernel/arch/sparc/include/asm/irqflags_32.h b/kernel/arch/sparc/include/asm/irqflags_32.h
new file mode 100644
index 000000000..71cc284f5
--- /dev/null
+++ b/kernel/arch/sparc/include/asm/irqflags_32.h
@@ -0,0 +1,47 @@
+/*
+ * include/asm/irqflags.h
+ *
+ * IRQ flags handling
+ *
+ * This file gets included from lowlevel asm headers too, to provide
+ * wrapped versions of the local_irq_*() APIs, based on the
+ * arch_local_irq_*() functions from the lowlevel headers.
+ */
+#ifndef _ASM_IRQFLAGS_H
+#define _ASM_IRQFLAGS_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <asm/psr.h>
+
+void arch_local_irq_restore(unsigned long);
+unsigned long arch_local_irq_save(void);
+void arch_local_irq_enable(void);
+
+static inline notrace unsigned long arch_local_save_flags(void)
+{
+	unsigned long flags;
+
+	asm volatile("rd        %%psr, %0" : "=r" (flags));
+	return flags;
+}
+
+static inline notrace void arch_local_irq_disable(void)
+{
+	arch_local_irq_save();
+}
+
+static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
+{
+	return (flags & PSR_PIL) != 0;
+}
+
+static inline notrace bool arch_irqs_disabled(void)
+{
+	return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+#endif /* (__ASSEMBLY__) */
+
+#endif /* !(_ASM_IRQFLAGS_H) */