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, 187 insertions, 0 deletions

diff --git a/kernel/drivers/scsi/lasi700.c b/kernel/drivers/scsi/lasi700.c
new file mode 100644
index 000000000..5c4ded997
--- /dev/null
+++ b/kernel/drivers/scsi/lasi700.c
@@ -0,0 +1,187 @@
+/* -*- mode: c; c-basic-offset: 8 -*- */
+
+/* PARISC LASI driver for the 53c700 chip
+ *
+ * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com
+**-----------------------------------------------------------------------------
+**  
+**  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.  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.
+**
+**-----------------------------------------------------------------------------
+ */
+
+/*
+ * Many thanks to Richard Hirst <rhirst@linuxcare.com> for patiently
+ * debugging this driver on the parisc architecture and suggesting
+ * many improvements and bug fixes.
+ *
+ * Thanks also go to Linuxcare Inc. for providing several PARISC
+ * machines for me to debug the driver on.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/blkdev.h>
+#include <linux/ioport.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+#include <asm/page.h>
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/hardware.h>
+#include <asm/parisc-device.h>
+#include <asm/delay.h>
+
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_spi.h>
+
+#include "53c700.h"
+
+MODULE_AUTHOR("James Bottomley");
+MODULE_DESCRIPTION("lasi700 SCSI Driver");
+MODULE_LICENSE("GPL");
+
+#define LASI_700_SVERSION 0x00071
+#define LASI_710_SVERSION 0x00082
+
+#define LASI700_ID_TABLE {			\
+	.hw_type	= HPHW_FIO,		\
+	.sversion	= LASI_700_SVERSION,	\
+	.hversion	= HVERSION_ANY_ID,	\
+	.hversion_rev	= HVERSION_REV_ANY_ID,	\
+}
+
+#define LASI710_ID_TABLE {			\
+	.hw_type	= HPHW_FIO,		\
+	.sversion	= LASI_710_SVERSION,	\
+	.hversion	= HVERSION_ANY_ID,	\
+	.hversion_rev	= HVERSION_REV_ANY_ID,	\
+}
+
+#define LASI700_CLOCK	25
+#define LASI710_CLOCK	40
+#define LASI_SCSI_CORE_OFFSET 0x100
+
+static struct parisc_device_id lasi700_ids[] = {
+	LASI700_ID_TABLE,
+	LASI710_ID_TABLE,
+	{ 0 }
+};
+
+static struct scsi_host_template lasi700_template = {
+	.name		= "LASI SCSI 53c700",
+	.proc_name	= "lasi700",
+	.this_id	= 7,
+	.module		= THIS_MODULE,
+};
+MODULE_DEVICE_TABLE(parisc, lasi700_ids);
+
+static int __init
+lasi700_probe(struct parisc_device *dev)
+{
+	unsigned long base = dev->hpa.start + LASI_SCSI_CORE_OFFSET;
+	struct NCR_700_Host_Parameters *hostdata;
+	struct Scsi_Host *host;
+
+	hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
+	if (!hostdata) {
+		dev_printk(KERN_ERR, &dev->dev, "Failed to allocate host data\n");
+		return -ENOMEM;
+	}
+
+	hostdata->dev = &dev->dev;
+	dma_set_mask(&dev->dev, DMA_BIT_MASK(32));
+	hostdata->base = ioremap_nocache(base, 0x100);
+	hostdata->differential = 0;
+
+	if (dev->id.sversion == LASI_700_SVERSION) {
+		hostdata->clock = LASI700_CLOCK;
+		hostdata->force_le_on_be = 1;
+	} else {
+		hostdata->clock = LASI710_CLOCK;
+		hostdata->force_le_on_be = 0;
+		hostdata->chip710 = 1;
+		hostdata->dmode_extra = DMODE_FC2;
+		hostdata->burst_length = 8;
+	}
+
+	host = NCR_700_detect(&lasi700_template, hostdata, &dev->dev);
+	if (!host)
+		goto out_kfree;
+	host->this_id = 7;
+	host->base = base;
+	host->irq = dev->irq;
+	if(request_irq(dev->irq, NCR_700_intr, IRQF_SHARED, "lasi700", host)) {
+		printk(KERN_ERR "lasi700: request_irq failed!\n");
+		goto out_put_host;
+	}
+
+	dev_set_drvdata(&dev->dev, host);
+	scsi_scan_host(host);
+
+	return 0;
+
+ out_put_host:
+	scsi_host_put(host);
+ out_kfree:
+	iounmap(hostdata->base);
+	kfree(hostdata);
+	return -ENODEV;
+}
+
+static int __exit
+lasi700_driver_remove(struct parisc_device *dev)
+{
+	struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
+	struct NCR_700_Host_Parameters *hostdata = 
+		(struct NCR_700_Host_Parameters *)host->hostdata[0];
+
+	scsi_remove_host(host);
+	NCR_700_release(host);
+	free_irq(host->irq, host);
+	iounmap(hostdata->base);
+	kfree(hostdata);
+
+	return 0;
+}
+
+static struct parisc_driver lasi700_driver = {
+	.name =		"lasi_scsi",
+	.id_table =	lasi700_ids,
+	.probe =	lasi700_probe,
+	.remove =	lasi700_driver_remove,
+};
+
+static int __init
+lasi700_init(void)
+{
+	return register_parisc_driver(&lasi700_driver);
+}
+
+static void __exit
+lasi700_exit(void)
+{
+	unregister_parisc_driver(&lasi700_driver);
+}
+
+module_init(lasi700_init);
+module_exit(lasi700_exit);