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, 96 insertions, 0 deletions

diff --git a/kernel/drivers/pci/hotplug/shpchp_sysfs.c b/kernel/drivers/pci/hotplug/shpchp_sysfs.c
new file mode 100644
index 000000000..52875b360
--- /dev/null
+++ b/kernel/drivers/pci/hotplug/shpchp_sysfs.c
@@ -0,0 +1,96 @@
+/*
+ * Compaq Hot Plug Controller Driver
+ *
+ * Copyright (c) 1995,2001 Compaq Computer Corporation
+ * Copyright (c) 2001,2003 Greg Kroah-Hartman (greg@kroah.com)
+ * Copyright (c) 2001 IBM Corp.
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Send feedback to <greg@kroah.com>
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include "shpchp.h"
+
+
+/* A few routines that create sysfs entries for the hot plug controller */
+
+static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct pci_dev *pdev;
+	char *out = buf;
+	int index, busnr;
+	struct resource *res;
+	struct pci_bus *bus;
+
+	pdev = container_of (dev, struct pci_dev, dev);
+	bus = pdev->subordinate;
+
+	out += sprintf(buf, "Free resources: memory\n");
+	pci_bus_for_each_resource(bus, res, index) {
+		if (res && (res->flags & IORESOURCE_MEM) &&
+				!(res->flags & IORESOURCE_PREFETCH)) {
+			out += sprintf(out, "start = %8.8llx, length = %8.8llx\n",
+				       (unsigned long long)res->start,
+				       (unsigned long long)resource_size(res));
+		}
+	}
+	out += sprintf(out, "Free resources: prefetchable memory\n");
+	pci_bus_for_each_resource(bus, res, index) {
+		if (res && (res->flags & IORESOURCE_MEM) &&
+			       (res->flags & IORESOURCE_PREFETCH)) {
+			out += sprintf(out, "start = %8.8llx, length = %8.8llx\n",
+				       (unsigned long long)res->start,
+				       (unsigned long long)resource_size(res));
+		}
+	}
+	out += sprintf(out, "Free resources: IO\n");
+	pci_bus_for_each_resource(bus, res, index) {
+		if (res && (res->flags & IORESOURCE_IO)) {
+			out += sprintf(out, "start = %8.8llx, length = %8.8llx\n",
+				       (unsigned long long)res->start,
+				       (unsigned long long)resource_size(res));
+		}
+	}
+	out += sprintf(out, "Free resources: bus numbers\n");
+	for (busnr = bus->busn_res.start; busnr <= bus->busn_res.end; busnr++) {
+		if (!pci_find_bus(pci_domain_nr(bus), busnr))
+			break;
+	}
+	if (busnr < bus->busn_res.end)
+		out += sprintf(out, "start = %8.8x, length = %8.8x\n",
+				busnr, (int)(bus->busn_res.end - busnr));
+
+	return out - buf;
+}
+static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL);
+
+int shpchp_create_ctrl_files (struct controller *ctrl)
+{
+	return device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl);
+}
+
+void shpchp_remove_ctrl_files(struct controller *ctrl)
+{
+	device_remove_file(&ctrl->pci_dev->dev, &dev_attr_ctrl);
+}