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, 66 insertions, 0 deletions

diff --git a/kernel/Documentation/watchdog/pcwd-watchdog.txt b/kernel/Documentation/watchdog/pcwd-watchdog.txt
new file mode 100644
index 000000000..4f6805239
--- /dev/null
+++ b/kernel/Documentation/watchdog/pcwd-watchdog.txt
@@ -0,0 +1,66 @@
+Last reviewed: 10/05/2007
+
+                     Berkshire Products PC Watchdog Card
+                   Support for ISA Cards  Revision A and C
+           Documentation and Driver by Ken Hollis <kenji@bitgate.com>
+
+ The PC Watchdog is a card that offers the same type of functionality that
+ the WDT card does, only it doesn't require an IRQ to run.  Furthermore,
+ the Revision C card allows you to monitor any IO Port to automatically
+ trigger the card into being reset.  This way you can make the card
+ monitor hard drive status, or anything else you need.
+
+ The Watchdog Driver has one basic role: to talk to the card and send
+ signals to it so it doesn't reset your computer ... at least during
+ normal operation.
+
+ The Watchdog Driver will automatically find your watchdog card, and will
+ attach a running driver for use with that card.  After the watchdog
+ drivers have initialized, you can then talk to the card using a PC
+ Watchdog program.
+
+ I suggest putting a "watchdog -d" before the beginning of an fsck, and
+ a "watchdog -e -t 1" immediately after the end of an fsck.  (Remember
+ to run the program with an "&" to run it in the background!)
+
+ If you want to write a program to be compatible with the PC Watchdog
+ driver, simply use of modify the watchdog test program:
+ Documentation/watchdog/src/watchdog-test.c
+
+
+ Other IOCTL functions include:
+
+	WDIOC_GETSUPPORT
+		This returns the support of the card itself.  This
+		returns in structure "PCWDS" which returns:
+			options = WDIOS_TEMPPANIC
+				  (This card supports temperature)
+			firmware_version = xxxx
+				  (Firmware version of the card)
+
+	WDIOC_GETSTATUS
+		This returns the status of the card, with the bits of
+		WDIOF_* bitwise-anded into the value.  (The comments
+		are in linux/pcwd.h)
+
+	WDIOC_GETBOOTSTATUS
+		This returns the status of the card that was reported
+		at bootup.
+
+	WDIOC_GETTEMP
+		This returns the temperature of the card.  (You can also
+		read /dev/watchdog, which gives a temperature update
+		every second.)
+
+	WDIOC_SETOPTIONS
+		This lets you set the options of the card.  You can either
+		enable or disable the card this way.
+
+	WDIOC_KEEPALIVE
+		This pings the card to tell it not to reset your computer.
+
+ And that's all she wrote!
+
+ -- Ken Hollis
+    (kenji@bitgate.com)
+