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, 44 insertions, 0 deletions

diff --git a/kernel/Documentation/devicetree/bindings/dma/arm-pl330.txt b/kernel/Documentation/devicetree/bindings/dma/arm-pl330.txt
new file mode 100644
index 000000000..267565894
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/dma/arm-pl330.txt
@@ -0,0 +1,44 @@
+* ARM PrimeCell PL330 DMA Controller
+
+The ARM PrimeCell PL330 DMA controller can move blocks of memory contents
+between memory and peripherals or memory to memory.
+
+Required properties:
+  - compatible: should include both "arm,pl330" and "arm,primecell".
+  - reg: physical base address of the controller and length of memory mapped
+    region.
+  - interrupts: interrupt number to the cpu.
+
+Optional properties:
+  - dma-coherent      : Present if dma operations are coherent
+  - #dma-cells: must be <1>. used to represent the number of integer
+    cells in the dmas property of client device.
+  - dma-channels: contains the total number of DMA channels supported by the DMAC
+  - dma-requests: contains the total number of DMA requests supported by the DMAC
+
+Example:
+
+	pdma0: pdma@12680000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x12680000 0x1000>;
+		interrupts = <99>;
+		#dma-cells = <1>;
+		#dma-channels = <8>;
+		#dma-requests = <32>;
+	};
+
+Client drivers (device nodes requiring dma transfers from dev-to-mem or
+mem-to-dev) should specify the DMA channel numbers and dma channel names
+as shown below.
+
+  [property name]  = <[phandle of the dma controller] [dma request id]>;
+  [property name]  = <[dma channel name]>
+
+      where 'dma request id' is the dma request number which is connected
+      to the client controller. The 'property name' 'dmas' and 'dma-names'
+      as required by the generic dma device tree binding helpers. The dma
+      names correspond 1:1 with the dma request ids in the dmas property.
+
+  Example:  dmas = <&pdma0 12
+		    &pdma1 11>;
+	    dma-names = "tx", "rx";