Rewind v3.13-rc3+ (78fd82238d0e5716) to v3.12

68 files changed, 523 insertions, 7327 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index a3e291d..8dacd4c 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -381,6 +381,19 @@ config HMC6352
 	  This driver provides support for the Honeywell HMC6352 compass,
 	  providing configuration and heading data via sysfs.
 
+config EP93XX_PWM
+	tristate "EP93xx PWM support"
+	depends on ARCH_EP93XX
+	help
+	  This option enables device driver support for the PWM channels
+	  on the Cirrus EP93xx processors.  The EP9307 chip only has one
+	  PWM channel all the others have two, the second channel is an
+	  alternate function of the EGPIO14 pin.  A sysfs interface is
+	  provided to control the PWM channels.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called ep93xx_pwm.
+
 config DS1682
 	tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
 	depends on I2C
@@ -524,5 +537,4 @@ source "drivers/misc/carma/Kconfig"
 source "drivers/misc/altera-stapl/Kconfig"
 source "drivers/misc/mei/Kconfig"
 source "drivers/misc/vmw_vmci/Kconfig"
-source "drivers/misc/mic/Kconfig"
 endmenu
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index f45473e..c235d5b 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -33,6 +33,7 @@ obj-$(CONFIG_APDS9802ALS)	+= apds9802als.o
 obj-$(CONFIG_ISL29003)		+= isl29003.o
 obj-$(CONFIG_ISL29020)		+= isl29020.o
 obj-$(CONFIG_SENSORS_TSL2550)	+= tsl2550.o
+obj-$(CONFIG_EP93XX_PWM)	+= ep93xx_pwm.o
 obj-$(CONFIG_DS1682)		+= ds1682.o
 obj-$(CONFIG_TI_DAC7512)	+= ti_dac7512.o
 obj-$(CONFIG_C2PORT)		+= c2port/
@@ -52,4 +53,3 @@ obj-$(CONFIG_INTEL_MEI)		+= mei/
 obj-$(CONFIG_VMWARE_VMCI)	+= vmw_vmci/
 obj-$(CONFIG_LATTICE_ECP3_CONFIG)	+= lattice-ecp3-config.o
 obj-$(CONFIG_SRAM)		+= sram.o
-obj-y				+= mic/
diff --git a/drivers/misc/arm-charlcd.c b/drivers/misc/arm-charlcd.c
index b7ebf80..1256a4b 100644
--- a/drivers/misc/arm-charlcd.c
+++ b/drivers/misc/arm-charlcd.c
@@ -297,7 +297,7 @@ static int __init charlcd_probe(struct platform_device *pdev)
 	lcd->irq = platform_get_irq(pdev, 0);
 	/* If no IRQ is supplied, we'll survive without it */
 	if (lcd->irq >= 0) {
-		if (request_irq(lcd->irq, charlcd_interrupt, 0,
+		if (request_irq(lcd->irq, charlcd_interrupt, IRQF_DISABLED,
 				DRIVERNAME, lcd)) {
 			ret = -EIO;
 			goto out_no_irq;
diff --git a/drivers/misc/atmel_pwm.c b/drivers/misc/atmel_pwm.c
index a6dc56e..494d050 100644
--- a/drivers/misc/atmel_pwm.c
+++ b/drivers/misc/atmel_pwm.c
@@ -90,10 +90,8 @@ int pwm_channel_alloc(int index, struct pwm_channel *ch)
 	unsigned long	flags;
 	int		status = 0;
 
-	if (!pwm)
-		return -EPROBE_DEFER;
-
-	if (!(pwm->mask & 1 << index))
+	/* insist on PWM init, with this signal pinned out */
+	if (!pwm || !(pwm->mask & 1 << index))
 		return -ENODEV;
 
 	if (index < 0 || index >= PWM_NCHAN || !ch)
diff --git a/drivers/misc/bh1780gli.c b/drivers/misc/bh1780gli.c
index 48ea33d..057580e 100644
--- a/drivers/misc/bh1780gli.c
+++ b/drivers/misc/bh1780gli.c
@@ -23,7 +23,6 @@
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/module.h>
-#include <linux/of.h>
 
 #define BH1780_REG_CONTROL	0x80
 #define BH1780_REG_PARTID	0x8A
@@ -245,15 +244,6 @@ static const struct i2c_device_id bh1780_id[] = {
 	{ },
 };
 
-#ifdef CONFIG_OF
-static const struct of_device_id of_bh1780_match[] = {
-	{ .compatible = "rohm,bh1780gli", },
-	{},
-};
-
-MODULE_DEVICE_TABLE(of, of_bh1780_match);
-#endif
-
 static struct i2c_driver bh1780_driver = {
 	.probe		= bh1780_probe,
 	.remove		= bh1780_remove,
@@ -261,7 +251,6 @@ static struct i2c_driver bh1780_driver = {
 	.driver = {
 		.name = "bh1780",
 		.pm	= &bh1780_pm,
-		.of_match_table = of_match_ptr(of_bh1780_match),
 	},
 };
 
diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c
index 2704d88..849e2fe 100644
--- a/drivers/misc/bmp085.c
+++ b/drivers/misc/bmp085.c
@@ -374,7 +374,7 @@ int bmp085_detect(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(bmp085_detect);
 
-static void bmp085_get_of_properties(struct bmp085_data *data)
+static void __init bmp085_get_of_properties(struct bmp085_data *data)
 {
 #ifdef CONFIG_OF
 	struct device_node *np = data->dev->of_node;
diff --git a/drivers/misc/carma/carma-fpga-program.c b/drivers/misc/carma/carma-fpga-program.c
index 7be8983..c6bd7e8 100644
--- a/drivers/misc/carma/carma-fpga-program.c
+++ b/drivers/misc/carma/carma-fpga-program.c
@@ -10,8 +10,6 @@
  */
 
 #include <linux/dma-mapping.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/completion.h>
 #include <linux/miscdevice.h>
diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c
index 9e2b985..7b56563 100644
--- a/drivers/misc/carma/carma-fpga.c
+++ b/drivers/misc/carma/carma-fpga.c
@@ -88,8 +88,6 @@
  * interrupt source to the GPIO pin. Tada, we hid the interrupt. :)
  */
 
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/dma-mapping.h>
 #include <linux/miscdevice.h>
@@ -633,7 +631,8 @@ static int data_submit_dma(struct fpga_device *priv, struct data_buf *buf)
 	struct dma_async_tx_descriptor *tx;
 	dma_cookie_t cookie;
 	dma_addr_t dst, src;
-	unsigned long dma_flags = 0;
+	unsigned long dma_flags = DMA_COMPL_SKIP_DEST_UNMAP |
+				  DMA_COMPL_SKIP_SRC_UNMAP;
 
 	dst_sg = buf->vb.sglist;
 	dst_nents = buf->vb.sglen;
diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c
index fb397e7..2e50f81 100644
--- a/drivers/misc/cb710/core.c
+++ b/drivers/misc/cb710/core.c
@@ -176,7 +176,7 @@ static int cb710_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct cb710_chip *chip = pci_get_drvdata(pdev);
 
-	devm_free_irq(&pdev->dev, pdev->irq, chip);
+	free_irq(pdev->irq, chip);
 	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	if (state.event & PM_EVENT_SLEEP)
diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index 9536852f..04f2e1f 100644
--- a/drivers/misc/eeprom/Kconfig
+++ b/drivers/misc/eeprom/Kconfig
@@ -96,17 +96,4 @@ config EEPROM_DIGSY_MTC_CFG
 
 	  If unsure, say N.
 
-config EEPROM_SUNXI_SID
-	tristate "Allwinner sunxi security ID support"
-	depends on ARCH_SUNXI && SYSFS
-	help
-	  This is a driver for the 'security ID' available on various Allwinner
-	  devices.
-
-	  Due to the potential risks involved with changing e-fuses,
-	  this driver is read-only.
-
-	  This driver can also be built as a module. If so, the module
-	  will be called sunxi_sid.
-
 endmenu
diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile
index 9507aec..fc1e81d 100644
--- a/drivers/misc/eeprom/Makefile
+++ b/drivers/misc/eeprom/Makefile
@@ -4,5 +4,4 @@ obj-$(CONFIG_EEPROM_LEGACY)	+= eeprom.o
 obj-$(CONFIG_EEPROM_MAX6875)	+= max6875.o
 obj-$(CONFIG_EEPROM_93CX6)	+= eeprom_93cx6.o
 obj-$(CONFIG_EEPROM_93XX46)	+= eeprom_93xx46.o
-obj-$(CONFIG_EEPROM_SUNXI_SID)	+= sunxi_sid.o
 obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index d87f77f..5d4fd69 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -22,7 +22,7 @@
 #include <linux/jiffies.h>
 #include <linux/of.h>
 #include <linux/i2c.h>
-#include <linux/platform_data/at24.h>
+#include <linux/i2c/at24.h>
 
 /*
  * I2C EEPROMs from most vendors are inexpensive and mostly interchangeable.
@@ -428,9 +428,6 @@ static ssize_t at24_bin_write(struct file *filp, struct kobject *kobj,
 {
 	struct at24_data *at24;
 
-	if (unlikely(off >= attr->size))
-		return -EFBIG;
-
 	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
 	return at24_write(at24, buf, off, count);
 }
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 4f3bca1..840b359 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -462,17 +462,10 @@ static int at25_remove(struct spi_device *spi)
 
 /*-------------------------------------------------------------------------*/
 
-static const struct of_device_id at25_of_match[] = {
-	{ .compatible = "atmel,at25", },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, at25_of_match);
-
 static struct spi_driver at25_driver = {
 	.driver = {
 		.name		= "at25",
 		.owner		= THIS_MODULE,
-		.of_match_table = at25_of_match,
 	},
 	.probe		= at25_probe,
 	.remove		= at25_remove,
diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c
index 3a015ab..94cfc12 100644
--- a/drivers/misc/eeprom/eeprom_93xx46.c
+++ b/drivers/misc/eeprom/eeprom_93xx46.c
@@ -202,7 +202,7 @@ eeprom_93xx46_bin_write(struct file *filp, struct kobject *kobj,
 	edev = dev_get_drvdata(dev);
 
 	if (unlikely(off >= edev->bin.size))
-		return -EFBIG;
+		return 0;
 	if ((off + count) > edev->bin.size)
 		count = edev->bin.size - off;
 	if (unlikely(!count))
diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c
deleted file mode 100644
index 9c34e57..0000000
--- a/drivers/misc/eeprom/sunxi_sid.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * Copyright (c) 2013 Oliver Schinagl <oliver@schinagl.nl>
- * http://www.linux-sunxi.org
- *
- * 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.
- *
- * This driver exposes the Allwinner security ID, efuses exported in byte-
- * sized chunks.
- */
-
-#include <linux/compiler.h>
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/export.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/kobject.h>
-#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/random.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/sysfs.h>
-#include <linux/types.h>
-
-#define DRV_NAME "sunxi-sid"
-
-struct sunxi_sid_data {
-	void __iomem *reg_base;
-	unsigned int keysize;
-};
-
-/* We read the entire key, due to a 32 bit read alignment requirement. Since we
- * want to return the requested byte, this results in somewhat slower code and
- * uses 4 times more reads as needed but keeps code simpler. Since the SID is
- * only very rarely probed, this is not really an issue.
- */
-static u8 sunxi_sid_read_byte(const struct sunxi_sid_data *sid_data,
-			      const unsigned int offset)
-{
-	u32 sid_key;
-
-	if (offset >= sid_data->keysize)
-		return 0;
-
-	sid_key = ioread32be(sid_data->reg_base + round_down(offset, 4));
-	sid_key >>= (offset % 4) * 8;
-
-	return sid_key; /* Only return the last byte */
-}
-
-static ssize_t sid_read(struct file *fd, struct kobject *kobj,
-			struct bin_attribute *attr, char *buf,
-			loff_t pos, size_t size)
-{
-	struct platform_device *pdev;
-	struct sunxi_sid_data *sid_data;
-	int i;
-
-	pdev = to_platform_device(kobj_to_dev(kobj));
-	sid_data = platform_get_drvdata(pdev);
-
-	if (pos < 0 || pos >= sid_data->keysize)
-		return 0;
-	if (size > sid_data->keysize - pos)
-		size = sid_data->keysize - pos;
-
-	for (i = 0; i < size; i++)
-		buf[i] = sunxi_sid_read_byte(sid_data, pos + i);
-
-	return i;
-}
-
-static struct bin_attribute sid_bin_attr = {
-	.attr = { .name = "eeprom", .mode = S_IRUGO, },
-	.read = sid_read,
-};
-
-static int sunxi_sid_remove(struct platform_device *pdev)
-{
-	device_remove_bin_file(&pdev->dev, &sid_bin_attr);
-	dev_dbg(&pdev->dev, "driver unloaded\n");
-
-	return 0;
-}
-
-static const struct of_device_id sunxi_sid_of_match[] = {
-	{ .compatible = "allwinner,sun4i-sid", .data = (void *)16},
-	{ .compatible = "allwinner,sun7i-a20-sid", .data = (void *)512},
-	{/* sentinel */},
-};
-MODULE_DEVICE_TABLE(of, sunxi_sid_of_match);
-
-static int sunxi_sid_probe(struct platform_device *pdev)
-{
-	struct sunxi_sid_data *sid_data;
-	struct resource *res;
-	const struct of_device_id *of_dev_id;
-	u8 *entropy;
-	unsigned int i;
-
-	sid_data = devm_kzalloc(&pdev->dev, sizeof(struct sunxi_sid_data),
-				GFP_KERNEL);
-	if (!sid_data)
-		return -ENOMEM;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	sid_data->reg_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(sid_data->reg_base))
-		return PTR_ERR(sid_data->reg_base);
-
-	of_dev_id = of_match_device(sunxi_sid_of_match, &pdev->dev);
-	if (!of_dev_id)
-		return -ENODEV;
-	sid_data->keysize = (int)of_dev_id->data;
-
-	platform_set_drvdata(pdev, sid_data);
-
-	sid_bin_attr.size = sid_data->keysize;
-	if (device_create_bin_file(&pdev->dev, &sid_bin_attr))
-		return -ENODEV;
-
-	entropy = kzalloc(sizeof(u8) * sid_data->keysize, GFP_KERNEL);
-	for (i = 0; i < sid_data->keysize; i++)
-		entropy[i] = sunxi_sid_read_byte(sid_data, i);
-	add_device_randomness(entropy, sid_data->keysize);
-	kfree(entropy);
-
-	dev_dbg(&pdev->dev, "loaded\n");
-
-	return 0;
-}
-
-static struct platform_driver sunxi_sid_driver = {
-	.probe = sunxi_sid_probe,
-	.remove = sunxi_sid_remove,
-	.driver = {
-		.name = DRV_NAME,
-		.owner = THIS_MODULE,
-		.of_match_table = sunxi_sid_of_match,
-	},
-};
-module_platform_driver(sunxi_sid_driver);
-
-MODULE_AUTHOR("Oliver Schinagl <oliver@schinagl.nl>");
-MODULE_DESCRIPTION("Allwinner sunxi security id driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 2cf2bbc..0e8df41 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -198,13 +198,6 @@ static void enclosure_remove_links(struct enclosure_component *cdev)
 {
 	char name[ENCLOSURE_NAME_SIZE];
 
-	/*
-	 * In odd circumstances, like multipath devices, something else may
-	 * already have removed the links, so check for this condition first.
-	 */
-	if (!cdev->dev->kobj.sd)
-		return;
-
 	enclosure_link_name(cdev, name);
 	sysfs_remove_link(&cdev->dev->kobj, name);
 	sysfs_remove_link(&cdev->cdev.kobj, "device");
diff --git a/drivers/misc/ep93xx_pwm.c b/drivers/misc/ep93xx_pwm.c
new file mode 100644
index 0000000..cdb67a9
--- /dev/null
+++ b/drivers/misc/ep93xx_pwm.c
@@ -0,0 +1,286 @@
+/*
+ *  Simple PWM driver for EP93XX
+ *
+ *	(c) Copyright 2009  Matthieu Crapet <mcrapet@gmail.com>
+ *	(c) Copyright 2009  H Hartley Sweeten <hsweeten@visionengravers.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.
+ *
+ *  EP9307 has only one channel:
+ *    - PWMOUT
+ *
+ *  EP9301/02/12/15 have two channels:
+ *    - PWMOUT
+ *    - PWMOUT1 (alternate function for EGPIO14)
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include <mach/platform.h>
+
+#define EP93XX_PWMx_TERM_COUNT	0x00
+#define EP93XX_PWMx_DUTY_CYCLE	0x04
+#define EP93XX_PWMx_ENABLE	0x08
+#define EP93XX_PWMx_INVERT	0x0C
+
+#define EP93XX_PWM_MAX_COUNT	0xFFFF
+
+struct ep93xx_pwm {
+	void __iomem	*mmio_base;
+	struct clk	*clk;
+	u32		duty_percent;
+};
+
+/*
+ * /sys/devices/platform/ep93xx-pwm.N
+ *   /min_freq      read-only   minimum pwm output frequency
+ *   /max_req       read-only   maximum pwm output frequency
+ *   /freq          read-write  pwm output frequency (0 = disable output)
+ *   /duty_percent  read-write  pwm duty cycle percent (1..99)
+ *   /invert        read-write  invert pwm output
+ */
+
+static ssize_t ep93xx_pwm_get_min_freq(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	unsigned long rate = clk_get_rate(pwm->clk);
+
+	return sprintf(buf, "%ld\n", rate / (EP93XX_PWM_MAX_COUNT + 1));
+}
+
+static ssize_t ep93xx_pwm_get_max_freq(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	unsigned long rate = clk_get_rate(pwm->clk);
+
+	return sprintf(buf, "%ld\n", rate / 2);
+}
+
+static ssize_t ep93xx_pwm_get_freq(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+
+	if (readl(pwm->mmio_base + EP93XX_PWMx_ENABLE) & 0x1) {
+		unsigned long rate = clk_get_rate(pwm->clk);
+		u16 term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
+
+		return sprintf(buf, "%ld\n", rate / (term + 1));
+	} else {
+		return sprintf(buf, "disabled\n");
+	}
+}
+
+static ssize_t ep93xx_pwm_set_freq(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	long val;
+	int err;
+
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return -EINVAL;
+
+	if (val == 0) {
+		writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE);
+	} else if (val <= (clk_get_rate(pwm->clk) / 2)) {
+		u32 term, duty;
+
+		val = (clk_get_rate(pwm->clk) / val) - 1;
+		if (val > EP93XX_PWM_MAX_COUNT)
+			val = EP93XX_PWM_MAX_COUNT;
+		if (val < 1)
+			val = 1;
+
+		term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
+		duty = ((val + 1) * pwm->duty_percent / 100) - 1;
+
+		/* If pwm is running, order is important */
+		if (val > term) {
+			writel(val, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
+			writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE);
+		} else {
+			writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE);
+			writel(val, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
+		}
+
+		if (!readl(pwm->mmio_base + EP93XX_PWMx_ENABLE) & 0x1)
+			writel(0x1, pwm->mmio_base + EP93XX_PWMx_ENABLE);
+	} else {
+		return -EINVAL;
+	}
+
+	return count;
+}
+
+static ssize_t ep93xx_pwm_get_duty_percent(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+
+	return sprintf(buf, "%d\n", pwm->duty_percent);
+}
+
+static ssize_t ep93xx_pwm_set_duty_percent(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	long val;
+	int err;
+
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return -EINVAL;
+
+	if (val > 0 && val < 100) {
+		u32 term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
+		u32 duty = ((term + 1) * val / 100) - 1;
+
+		writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE);
+		pwm->duty_percent = val;
+		return count;
+	}
+
+	return -EINVAL;
+}
+
+static ssize_t ep93xx_pwm_get_invert(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	int inverted = readl(pwm->mmio_base + EP93XX_PWMx_INVERT) & 0x1;
+
+	return sprintf(buf, "%d\n", inverted);
+}
+
+static ssize_t ep93xx_pwm_set_invert(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	long val;
+	int err;
+
+	err = kstrtol(buf, 10, &val);
+	if (err)
+		return -EINVAL;
+
+	if (val == 0)
+		writel(0x0, pwm->mmio_base + EP93XX_PWMx_INVERT);
+	else if (val == 1)
+		writel(0x1, pwm->mmio_base + EP93XX_PWMx_INVERT);
+	else
+		return -EINVAL;
+
+	return count;
+}
+
+static DEVICE_ATTR(min_freq, S_IRUGO, ep93xx_pwm_get_min_freq, NULL);
+static DEVICE_ATTR(max_freq, S_IRUGO, ep93xx_pwm_get_max_freq, NULL);
+static DEVICE_ATTR(freq, S_IWUSR | S_IRUGO,
+		   ep93xx_pwm_get_freq, ep93xx_pwm_set_freq);
+static DEVICE_ATTR(duty_percent, S_IWUSR | S_IRUGO,
+		   ep93xx_pwm_get_duty_percent, ep93xx_pwm_set_duty_percent);
+static DEVICE_ATTR(invert, S_IWUSR | S_IRUGO,
+		   ep93xx_pwm_get_invert, ep93xx_pwm_set_invert);
+
+static struct attribute *ep93xx_pwm_attrs[] = {
+	&dev_attr_min_freq.attr,
+	&dev_attr_max_freq.attr,
+	&dev_attr_freq.attr,
+	&dev_attr_duty_percent.attr,
+	&dev_attr_invert.attr,
+	NULL
+};
+
+static const struct attribute_group ep93xx_pwm_sysfs_files = {
+	.attrs	= ep93xx_pwm_attrs,
+};
+
+static int ep93xx_pwm_probe(struct platform_device *pdev)
+{
+	struct ep93xx_pwm *pwm;
+	struct resource *res;
+	int ret;
+
+	pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL);
+	if (!pwm)
+		return -ENOMEM;
+
+	pwm->clk = devm_clk_get(&pdev->dev, "pwm_clk");
+	if (IS_ERR(pwm->clk))
+		return PTR_ERR(pwm->clk);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	pwm->mmio_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(pwm->mmio_base))
+		return PTR_ERR(pwm->mmio_base);
+
+	ret = ep93xx_pwm_acquire_gpio(pdev);
+	if (ret)
+		return ret;
+
+	ret = sysfs_create_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files);
+	if (ret) {
+		ep93xx_pwm_release_gpio(pdev);
+		return ret;
+	}
+
+	pwm->duty_percent = 50;
+
+	/* disable pwm at startup. Avoids zero value. */
+	writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE);
+	writel(EP93XX_PWM_MAX_COUNT, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
+	writel(EP93XX_PWM_MAX_COUNT/2, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE);
+
+	clk_enable(pwm->clk);
+
+	platform_set_drvdata(pdev, pwm);
+	return 0;
+}
+
+static int ep93xx_pwm_remove(struct platform_device *pdev)
+{
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+
+	writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE);
+	clk_disable(pwm->clk);
+	sysfs_remove_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files);
+	ep93xx_pwm_release_gpio(pdev);
+
+	return 0;
+}
+
+static struct platform_driver ep93xx_pwm_driver = {
+	.driver		= {
+		.name	= "ep93xx-pwm",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ep93xx_pwm_probe,
+	.remove		= ep93xx_pwm_remove,
+};
+module_platform_driver(ep93xx_pwm_driver);
+
+MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>, "
+	      "H Hartley Sweeten <hsweeten@visionengravers.com>");
+MODULE_DESCRIPTION("EP93xx PWM driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ep93xx-pwm");
diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c
index 6b3bf9a..0346d87 100644
--- a/drivers/misc/ibmasm/module.c
+++ b/drivers/misc/ibmasm/module.c
@@ -153,6 +153,7 @@ error_ioremap:
 error_heartbeat:
 	ibmasm_event_buffer_exit(sp);
 error_eventbuffer:
+	pci_set_drvdata(pdev, NULL);
 	kfree(sp);
 error_kmalloc:
         pci_release_regions(pdev);
@@ -164,7 +165,7 @@ error_resources:
 
 static void ibmasm_remove_one(struct pci_dev *pdev)
 {
-	struct service_processor *sp = pci_get_drvdata(pdev);
+	struct service_processor *sp = (struct service_processor *)pci_get_drvdata(pdev);
 
 	dbg("Unregistering UART\n");
 	ibmasm_unregister_uart(sp);
@@ -181,6 +182,7 @@ static void ibmasm_remove_one(struct pci_dev *pdev)
 	ibmasm_free_remote_input_dev(sp);
 	iounmap(sp->base_address);
 	ibmasm_event_buffer_exit(sp);
+	pci_set_drvdata(pdev, NULL);
 	kfree(sp);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index a2edb2e..2fc0586 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -44,25 +44,13 @@
 #include <scsi/scsi_cmnd.h>
 #include <linux/debugfs.h>
 #include <linux/vmalloc.h>
-#include <linux/mman.h>
 
 #ifdef CONFIG_IDE
 #include <linux/ide.h>
 #endif
 
-/*
- * Make sure our attempts to over run the kernel stack doesn't trigger
- * a compiler warning when CONFIG_FRAME_WARN is set. Then make sure we
- * recurse past the end of THREAD_SIZE by default.
- */
-#if defined(CONFIG_FRAME_WARN) && (CONFIG_FRAME_WARN > 0)
-#define REC_STACK_SIZE (CONFIG_FRAME_WARN / 2)
-#else
-#define REC_STACK_SIZE (THREAD_SIZE / 8)
-#endif
-#define REC_NUM_DEFAULT ((THREAD_SIZE / REC_STACK_SIZE) * 2)
-
 #define DEFAULT_COUNT 10
+#define REC_NUM_DEFAULT 10
 #define EXEC_SIZE 64
 
 enum cname {
@@ -98,9 +86,6 @@ enum ctype {
 	CT_EXEC_STACK,
 	CT_EXEC_KMALLOC,
 	CT_EXEC_VMALLOC,
-	CT_EXEC_USERSPACE,
-	CT_ACCESS_USERSPACE,
-	CT_WRITE_RO,
 };
 
 static char* cp_name[] = {
@@ -134,9 +119,6 @@ static char* cp_type[] = {
 	"EXEC_STACK",
 	"EXEC_KMALLOC",
 	"EXEC_VMALLOC",
-	"EXEC_USERSPACE",
-	"ACCESS_USERSPACE",
-	"WRITE_RO",
 };
 
 static struct jprobe lkdtm;
@@ -157,10 +139,9 @@ static DEFINE_SPINLOCK(lock_me_up);
 
 static u8 data_area[EXEC_SIZE];
 
-static const unsigned long rodata = 0xAA55AA55;
-
 module_param(recur_count, int, 0644);
-MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test");
+MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test, "\
+				 "default is 10");
 module_param(cpoint_name, charp, 0444);
 MODULE_PARM_DESC(cpoint_name, " Crash Point, where kernel is to be crashed");
 module_param(cpoint_type, charp, 0444);
@@ -299,16 +280,16 @@ static int lkdtm_parse_commandline(void)
 	return -EINVAL;
 }
 
-static int recursive_loop(int remaining)
+static int recursive_loop(int a)
 {
-	char buf[REC_STACK_SIZE];
+	char buf[1024];
 
-	/* Make sure compiler does not optimize this away. */
-	memset(buf, (remaining & 0xff) | 0x1, REC_STACK_SIZE);
-	if (!remaining)
+	memset(buf,0xFF,1024);
+	recur_count--;
+	if (!recur_count)
 		return 0;
 	else
-		return recursive_loop(remaining - 1);
+        	return recursive_loop(a);
 }
 
 static void do_nothing(void)
@@ -316,14 +297,6 @@ static void do_nothing(void)
 	return;
 }
 
-static noinline void corrupt_stack(void)
-{
-	/* Use default char array length that triggers stack protection. */
-	char data[8];
-
-	memset((void *)data, 0, 64);
-}
-
 static void execute_location(void *dst)
 {
 	void (*func)(void) = dst;
@@ -332,15 +305,6 @@ static void execute_location(void *dst)
 	func();
 }
 
-static void execute_user_location(void *dst)
-{
-	void (*func)(void) = dst;
-
-	if (copy_to_user(dst, do_nothing, EXEC_SIZE))
-		return;
-	func();
-}
-
 static void lkdtm_do_action(enum ctype which)
 {
 	switch (which) {
@@ -361,11 +325,15 @@ static void lkdtm_do_action(enum ctype which)
 			;
 		break;
 	case CT_OVERFLOW:
-		(void) recursive_loop(recur_count);
+		(void) recursive_loop(0);
 		break;
-	case CT_CORRUPT_STACK:
-		corrupt_stack();
+	case CT_CORRUPT_STACK: {
+		/* Make sure the compiler creates and uses an 8 char array. */
+		volatile char data[8];
+
+		memset((void *)data, 0, 64);
 		break;
+	}
 	case CT_UNALIGNED_LOAD_STORE_WRITE: {
 		static u8 data[5] __attribute__((aligned(4))) = {1, 2,
 				3, 4, 5};
@@ -433,49 +401,6 @@ static void lkdtm_do_action(enum ctype which)
 		vfree(vmalloc_area);
 		break;
 	}
-	case CT_EXEC_USERSPACE: {
-		unsigned long user_addr;
-
-		user_addr = vm_mmap(NULL, 0, PAGE_SIZE,
-				    PROT_READ | PROT_WRITE | PROT_EXEC,
-				    MAP_ANONYMOUS | MAP_PRIVATE, 0);
-		if (user_addr >= TASK_SIZE) {
-			pr_warn("Failed to allocate user memory\n");
-			return;
-		}
-		execute_user_location((void *)user_addr);
-		vm_munmap(user_addr, PAGE_SIZE);
-		break;
-	}
-	case CT_ACCESS_USERSPACE: {
-		unsigned long user_addr, tmp;
-		unsigned long *ptr;
-
-		user_addr = vm_mmap(NULL, 0, PAGE_SIZE,
-				    PROT_READ | PROT_WRITE | PROT_EXEC,
-				    MAP_ANONYMOUS | MAP_PRIVATE, 0);
-		if (user_addr >= TASK_SIZE) {
-			pr_warn("Failed to allocate user memory\n");
-			return;
-		}
-
-		ptr = (unsigned long *)user_addr;
-		tmp = *ptr;
-		tmp += 0xc0dec0de;
-		*ptr = tmp;
-
-		vm_munmap(user_addr, PAGE_SIZE);
-
-		break;
-	}
-	case CT_WRITE_RO: {
-		unsigned long *ptr;
-
-		ptr = (unsigned long *)&rodata;
-		*ptr ^= 0xabcd1234;
-
-		break;
-	}
 	case CT_NONE:
 	default:
 		break;
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index d22c686..f6ff711 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -58,7 +58,6 @@ void mei_amthif_reset_params(struct mei_device *dev)
 	dev->iamthif_state = MEI_IAMTHIF_IDLE;
 	dev->iamthif_timer = 0;
 	dev->iamthif_stall_timer = 0;
-	dev->iamthif_open_count = 0;
 }
 
 /**
@@ -79,10 +78,8 @@ int mei_amthif_host_init(struct mei_device *dev)
 
 	i = mei_me_cl_by_uuid(dev, &mei_amthif_guid);
 	if (i < 0) {
-		ret = i;
-		dev_info(&dev->pdev->dev,
-			"amthif: failed to find the client %d\n", ret);
-		return ret;
+		dev_info(&dev->pdev->dev, "amthif: failed to find the client\n");
+		return -ENOENT;
 	}
 
 	cl->me_client_id = dev->me_clients[i].client_id;
@@ -109,9 +106,8 @@ int mei_amthif_host_init(struct mei_device *dev)
 	ret = mei_cl_link(cl, MEI_IAMTHIF_HOST_CLIENT_ID);
 
 	if (ret < 0) {
-		dev_err(&dev->pdev->dev,
-			"amthif: failed link client %d\n", ret);
-		return ret;
+		dev_err(&dev->pdev->dev, "amthif: failed link client\n");
+		return -ENOENT;
 	}
 
 	cl->state = MEI_FILE_CONNECTING;
@@ -317,13 +313,13 @@ static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb)
 		mei_hdr.me_addr = dev->iamthif_cl.me_client_id;
 		mei_hdr.reserved = 0;
 		dev->iamthif_msg_buf_index += mei_hdr.length;
-		ret = mei_write_message(dev, &mei_hdr, dev->iamthif_msg_buf);
-		if (ret)
-			return ret;
+		if (mei_write_message(dev, &mei_hdr,
+					(unsigned char *)dev->iamthif_msg_buf))
+			return -ENODEV;
 
 		if (mei_hdr.msg_complete) {
 			if (mei_cl_flow_ctrl_reduce(&dev->iamthif_cl))
-				return -EIO;
+				return -ENODEV;
 			dev->iamthif_flow_control_pending = true;
 			dev->iamthif_state = MEI_IAMTHIF_FLOW_CONTROL;
 			dev_dbg(&dev->pdev->dev, "add amthif cb to write waiting list\n");
@@ -463,16 +459,6 @@ int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 	struct mei_msg_hdr mei_hdr;
 	size_t len = dev->iamthif_msg_buf_size - dev->iamthif_msg_buf_index;
 	u32 msg_slots = mei_data2slots(len);
-	int rets;
-
-	rets = mei_cl_flow_ctrl_creds(cl);
-	if (rets < 0)
-		return rets;
-
-	if (rets == 0) {
-		cl_dbg(dev, cl, "No flow control credentials: not sending.\n");
-		return 0;
-	}
 
 	mei_hdr.host_addr = cl->host_client_id;
 	mei_hdr.me_addr = cl->me_client_id;
@@ -495,17 +481,16 @@ int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 	dev_dbg(&dev->pdev->dev, MEI_HDR_FMT,  MEI_HDR_PRM(&mei_hdr));
 
 	*slots -=  msg_slots;
-	rets = mei_write_message(dev, &mei_hdr,
-			dev->iamthif_msg_buf + dev->iamthif_msg_buf_index);
-	if (rets) {
-		dev->iamthif_state = MEI_IAMTHIF_IDLE;
-		cl->status = rets;
-		list_del(&cb->list);
-		return rets;
+	if (mei_write_message(dev, &mei_hdr,
+		dev->iamthif_msg_buf + dev->iamthif_msg_buf_index)) {
+			dev->iamthif_state = MEI_IAMTHIF_IDLE;
+			cl->status = -ENODEV;
+			list_del(&cb->list);
+			return -ENODEV;
 	}
 
 	if (mei_cl_flow_ctrl_reduce(cl))
-		return -EIO;
+		return -ENODEV;
 
 	dev->iamthif_msg_buf_index += mei_hdr.length;
 	cl->status = 0;
@@ -735,8 +720,8 @@ static bool mei_clear_lists(struct mei_device *dev, struct file *file)
 */
 int mei_amthif_release(struct mei_device *dev, struct file *file)
 {
-	if (dev->iamthif_open_count > 0)
-		dev->iamthif_open_count--;
+	if (dev->open_handle_count > 0)
+		dev->open_handle_count--;
 
 	if (dev->iamthif_file_object == file &&
 	    dev->iamthif_state != MEI_IAMTHIF_IDLE) {
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 4bc7d62..cd2033c 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -245,7 +245,7 @@ static int ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
 	/* Check if we have an ME client device */
 	id = mei_me_cl_by_id(dev, cl->me_client_id);
 	if (id < 0)
-		return id;
+		return -ENODEV;
 
 	if (length > dev->me_clients[id].props.max_msg_length)
 		return -EINVAL;
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 87c96e4..e0684b4 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -187,14 +187,10 @@ int mei_io_cb_alloc_resp_buf(struct mei_cl_cb *cb, size_t length)
  */
 int mei_cl_flush_queues(struct mei_cl *cl)
 {
-	struct mei_device *dev;
-
 	if (WARN_ON(!cl || !cl->dev))
 		return -EINVAL;
 
-	dev = cl->dev;
-
-	cl_dbg(dev, cl, "remove list entry belonging to cl\n");
+	dev_dbg(&cl->dev->pdev->dev, "remove list entry belonging to cl\n");
 	mei_io_list_flush(&cl->dev->read_list, cl);
 	mei_io_list_flush(&cl->dev->write_list, cl);
 	mei_io_list_flush(&cl->dev->write_waiting_list, cl);
@@ -275,7 +271,6 @@ struct mei_cl_cb *mei_cl_find_read_cb(struct mei_cl *cl)
 int mei_cl_link(struct mei_cl *cl, int id)
 {
 	struct mei_device *dev;
-	long open_handle_count;
 
 	if (WARN_ON(!cl || !cl->dev))
 		return -EINVAL;
@@ -289,14 +284,7 @@ int mei_cl_link(struct mei_cl *cl, int id)
 
 	if (id >= MEI_CLIENTS_MAX) {
 		dev_err(&dev->pdev->dev, "id exceded %d", MEI_CLIENTS_MAX) ;
-		return -EMFILE;
-	}
-
-	open_handle_count = dev->open_handle_count + dev->iamthif_open_count;
-	if (open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
-		dev_err(&dev->pdev->dev, "open_handle_count exceded %d",
-			MEI_MAX_OPEN_HANDLE_COUNT);
-		return -EMFILE;
+		return -ENOENT;
 	}
 
 	dev->open_handle_count++;
@@ -308,7 +296,7 @@ int mei_cl_link(struct mei_cl *cl, int id)
 
 	cl->state = MEI_FILE_INITIALIZING;
 
-	cl_dbg(dev, cl, "link cl\n");
+	dev_dbg(&dev->pdev->dev, "link cl host id = %d\n", cl->host_client_id);
 	return 0;
 }
 
@@ -320,6 +308,7 @@ int mei_cl_link(struct mei_cl *cl, int id)
 int mei_cl_unlink(struct mei_cl *cl)
 {
 	struct mei_device *dev;
+	struct mei_cl *pos, *next;
 
 	/* don't shout on error exit path */
 	if (!cl)
@@ -331,21 +320,14 @@ int mei_cl_unlink(struct mei_cl *cl)
 
 	dev = cl->dev;
 
-	cl_dbg(dev, cl, "unlink client");
-
-	if (dev->open_handle_count > 0)
-		dev->open_handle_count--;
-
-	/* never clear the 0 bit */
-	if (cl->host_client_id)
-		clear_bit(cl->host_client_id, dev->host_clients_map);
-
-	list_del_init(&cl->link);
-
-	cl->state = MEI_FILE_INITIALIZING;
-
-	list_del_init(&cl->link);
-
+	list_for_each_entry_safe(pos, next, &dev->file_list, link) {
+		if (cl->host_client_id == pos->host_client_id) {
+			dev_dbg(&dev->pdev->dev, "remove host client = %d, ME client = %d\n",
+				pos->host_client_id, pos->me_client_id);
+			list_del_init(&pos->link);
+			break;
+		}
+	}
 	return 0;
 }
 
@@ -359,6 +341,17 @@ void mei_host_client_init(struct work_struct *work)
 
 	mutex_lock(&dev->device_lock);
 
+	bitmap_zero(dev->host_clients_map, MEI_CLIENTS_MAX);
+	dev->open_handle_count = 0;
+
+	/*
+	 * Reserving the first three client IDs
+	 * 0: Reserved for MEI Bus Message communications
+	 * 1: Reserved for Watchdog
+	 * 2: Reserved for AMTHI
+	 */
+	bitmap_set(dev->host_clients_map, 0, 3);
+
 	for (i = 0; i < dev->me_clients_num; i++) {
 		client_props = &dev->me_clients[i].props;
 
@@ -397,8 +390,6 @@ int mei_cl_disconnect(struct mei_cl *cl)
 
 	dev = cl->dev;
 
-	cl_dbg(dev, cl, "disconnecting");
-
 	if (cl->state != MEI_FILE_DISCONNECTING)
 		return 0;
 
@@ -411,13 +402,13 @@ int mei_cl_disconnect(struct mei_cl *cl)
 		dev->hbuf_is_ready = false;
 		if (mei_hbm_cl_disconnect_req(dev, cl)) {
 			rets = -ENODEV;
-			cl_err(dev, cl, "failed to disconnect.\n");
+			dev_err(&dev->pdev->dev, "failed to disconnect.\n");
 			goto free;
 		}
 		mdelay(10); /* Wait for hardware disconnection ready */
 		list_add_tail(&cb->list, &dev->ctrl_rd_list.list);
 	} else {
-		cl_dbg(dev, cl, "add disconnect cb to control write list\n");
+		dev_dbg(&dev->pdev->dev, "add disconnect cb to control write list\n");
 		list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
 
 	}
@@ -430,17 +421,18 @@ int mei_cl_disconnect(struct mei_cl *cl)
 	mutex_lock(&dev->device_lock);
 	if (MEI_FILE_DISCONNECTED == cl->state) {
 		rets = 0;
-		cl_dbg(dev, cl, "successfully disconnected from FW client.\n");
+		dev_dbg(&dev->pdev->dev, "successfully disconnected from FW client.\n");
 	} else {
 		rets = -ENODEV;
 		if (MEI_FILE_DISCONNECTED != cl->state)
-			cl_err(dev, cl, "wrong status client disconnect.\n");
+			dev_dbg(&dev->pdev->dev, "wrong status client disconnect.\n");
 
 		if (err)
-			cl_dbg(dev, cl, "wait failed disconnect err=%08x\n",
+			dev_dbg(&dev->pdev->dev,
+					"wait failed disconnect err=%08x\n",
 					err);
 
-		cl_err(dev, cl, "failed to disconnect from FW client.\n");
+		dev_dbg(&dev->pdev->dev, "failed to disconnect from FW client.\n");
 	}
 
 	mei_io_list_flush(&dev->ctrl_rd_list, cl);
@@ -647,12 +639,13 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
 		return -ENODEV;
 
 	if (cl->read_cb) {
-		cl_dbg(dev, cl, "read is pending.\n");
+		dev_dbg(&dev->pdev->dev, "read is pending.\n");
 		return -EBUSY;
 	}
 	i = mei_me_cl_by_id(dev, cl->me_client_id);
 	if (i < 0) {
-		cl_err(dev, cl, "no such me client %d\n", cl->me_client_id);
+		dev_err(&dev->pdev->dev, "no such me client %d\n",
+			cl->me_client_id);
 		return  -ENODEV;
 	}
 
@@ -671,7 +664,6 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
 	if (dev->hbuf_is_ready) {
 		dev->hbuf_is_ready = false;
 		if (mei_hbm_cl_flow_control_req(dev, cl)) {
-			cl_err(dev, cl, "flow control send failed\n");
 			rets = -ENODEV;
 			goto err;
 		}
@@ -699,32 +691,10 @@ err:
 int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 				     s32 *slots, struct mei_cl_cb *cmpl_list)
 {
-	struct mei_device *dev;
-	struct mei_msg_data *buf;
+	struct mei_device *dev = cl->dev;
 	struct mei_msg_hdr mei_hdr;
-	size_t len;
-	u32 msg_slots;
-	int rets;
-
-
-	if (WARN_ON(!cl || !cl->dev))
-		return -ENODEV;
-
-	dev = cl->dev;
-
-	buf = &cb->request_buffer;
-
-	rets = mei_cl_flow_ctrl_creds(cl);
-	if (rets < 0)
-		return rets;
-
-	if (rets == 0) {
-		cl_dbg(dev, cl,	"No flow control credentials: not sending.\n");
-		return 0;
-	}
-
-	len = buf->size - cb->buf_idx;
-	msg_slots = mei_data2slots(len);
+	size_t len = cb->request_buffer.size - cb->buf_idx;
+	u32 msg_slots = mei_data2slots(len);
 
 	mei_hdr.host_addr = cl->host_client_id;
 	mei_hdr.me_addr = cl->me_client_id;
@@ -744,15 +714,16 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 		return 0;
 	}
 
-	cl_dbg(dev, cl, "buf: size = %d idx = %lu\n",
+	dev_dbg(&dev->pdev->dev, "buf: size = %d idx = %lu\n",
 			cb->request_buffer.size, cb->buf_idx);
+	dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(&mei_hdr));
 
 	*slots -=  msg_slots;
-	rets = mei_write_message(dev, &mei_hdr, buf->data + cb->buf_idx);
-	if (rets) {
-		cl->status = rets;
+	if (mei_write_message(dev, &mei_hdr,
+			cb->request_buffer.data + cb->buf_idx)) {
+		cl->status = -ENODEV;
 		list_move_tail(&cb->list, &cmpl_list->list);
-		return rets;
+		return -ENODEV;
 	}
 
 	cl->status = 0;
@@ -761,7 +732,7 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 
 	if (mei_hdr.msg_complete) {
 		if (mei_cl_flow_ctrl_reduce(cl))
-			return -EIO;
+			return -ENODEV;
 		list_move_tail(&cb->list, &dev->write_waiting_list.list);
 	}
 
@@ -796,7 +767,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
 
 	buf = &cb->request_buffer;
 
-	cl_dbg(dev, cl, "mei_cl_write %d\n", buf->size);
+	dev_dbg(&dev->pdev->dev, "mei_cl_write %d\n", buf->size);
 
 
 	cb->fop_type = MEI_FOP_WRITE;
@@ -829,10 +800,14 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
 	mei_hdr.me_addr = cl->me_client_id;
 	mei_hdr.reserved = 0;
 
+	dev_dbg(&dev->pdev->dev, "write " MEI_HDR_FMT "\n",
+		MEI_HDR_PRM(&mei_hdr));
 
-	rets = mei_write_message(dev, &mei_hdr, buf->data);
-	if (rets)
+
+	if (mei_write_message(dev, &mei_hdr, buf->data)) {
+		rets = -EIO;
 		goto err;
+	}
 
 	cl->writing_state = MEI_WRITING;
 	cb->buf_idx = mei_hdr.length;
@@ -923,11 +898,11 @@ void mei_cl_all_wakeup(struct mei_device *dev)
 	struct mei_cl *cl, *next;
 	list_for_each_entry_safe(cl, next, &dev->file_list, link) {
 		if (waitqueue_active(&cl->rx_wait)) {
-			cl_dbg(dev, cl, "Waking up reading client!\n");
+			dev_dbg(&dev->pdev->dev, "Waking up reading client!\n");
 			wake_up_interruptible(&cl->rx_wait);
 		}
 		if (waitqueue_active(&cl->tx_wait)) {
-			cl_dbg(dev, cl, "Waking up writing client!\n");
+			dev_dbg(&dev->pdev->dev, "Waking up writing client!\n");
 			wake_up_interruptible(&cl->tx_wait);
 		}
 	}
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index c8396e5..892cc42 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -115,13 +115,4 @@ void mei_cl_all_disconnect(struct mei_device *dev);
 void mei_cl_all_wakeup(struct mei_device *dev);
 void mei_cl_all_write_clear(struct mei_device *dev);
 
-#define MEI_CL_FMT "cl:host=%02d me=%02d "
-#define MEI_CL_PRM(cl) (cl)->host_client_id, (cl)->me_client_id
-
-#define cl_dbg(dev, cl, format, arg...) \
-	dev_dbg(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
-
-#define cl_err(dev, cl, format, arg...) \
-	dev_err(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
-
 #endif /* _MEI_CLIENT_H_ */
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index 9b3a0fb..0a044832 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -49,7 +49,7 @@ static void mei_hbm_me_cl_allocate(struct mei_device *dev)
 	kfree(dev->me_clients);
 	dev->me_clients = NULL;
 
-	dev_dbg(&dev->pdev->dev, "memory allocation for ME clients size=%ld.\n",
+	dev_dbg(&dev->pdev->dev, "memory allocation for ME clients size=%zd.\n",
 		dev->me_clients_num * sizeof(struct mei_me_client));
 	/* allocate storage for ME clients representation */
 	clients = kcalloc(dev->me_clients_num,
@@ -174,7 +174,7 @@ int mei_hbm_start_req(struct mei_device *dev)
 		dev_err(&dev->pdev->dev, "version message write failed\n");
 		dev->dev_state = MEI_DEV_RESETTING;
 		mei_reset(dev, 1);
-		return -EIO;
+		return -ENODEV;
 	}
 	dev->hbm_state = MEI_HBM_START;
 	dev->init_clients_timer = MEI_CLIENTS_INIT_TIMEOUT;
@@ -677,10 +677,7 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
 
 	case HOST_ENUM_RES_CMD:
 		enum_res = (struct hbm_host_enum_response *) mei_msg;
-		BUILD_BUG_ON(sizeof(dev->me_clients_map)
-				< sizeof(enum_res->valid_addresses));
-		memcpy(dev->me_clients_map, enum_res->valid_addresses,
-			sizeof(enum_res->valid_addresses));
+		memcpy(dev->me_clients_map, enum_res->valid_addresses, 32);
 		if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
 		    dev->hbm_state == MEI_HBM_ENUM_CLIENTS) {
 				dev->init_clients_timer = 0;
diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
index 66f411a..6a203b6 100644
--- a/drivers/misc/mei/hw-me-regs.h
+++ b/drivers/misc/mei/hw-me-regs.h
@@ -109,12 +109,8 @@
 #define MEI_DEV_ID_PPT_2      0x1CBA  /* Panther Point */
 #define MEI_DEV_ID_PPT_3      0x1DBA  /* Panther Point */
 
-#define MEI_DEV_ID_LPT_H      0x8C3A  /* Lynx Point H */
-#define MEI_DEV_ID_LPT_W      0x8D3A  /* Lynx Point - Wellsburg */
+#define MEI_DEV_ID_LPT        0x8C3A  /* Lynx Point */
 #define MEI_DEV_ID_LPT_LP     0x9C3A  /* Lynx Point LP */
-#define MEI_DEV_ID_LPT_HR     0x8CBA  /* Lynx Point H Refresh */
-
-#define MEI_DEV_ID_WPT_LP     0x9CBA  /* Wildcat Point LP */
 /*
  * MEI HW Section
  */
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index f7f3abb..6197018 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -68,14 +68,6 @@ void mei_device_init(struct mei_device *dev)
 	mei_io_list_init(&dev->amthif_cmd_list);
 	mei_io_list_init(&dev->amthif_rd_complete_list);
 
-	bitmap_zero(dev->host_clients_map, MEI_CLIENTS_MAX);
-	dev->open_handle_count = 0;
-
-	/*
-	 * Reserving the first client ID
-	 * 0: Reserved for MEI Bus Message communications
-	 */
-	bitmap_set(dev->host_clients_map, 0, 1);
 }
 EXPORT_SYMBOL_GPL(mei_device_init);
 
@@ -147,10 +139,6 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 			dev->dev_state != MEI_DEV_POWER_DOWN &&
 			dev->dev_state != MEI_DEV_POWER_UP);
 
-	if (unexpected)
-		dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n",
-			 mei_dev_state_str(dev->dev_state));
-
 	ret = mei_hw_reset(dev, interrupts_enabled);
 	if (ret) {
 		dev_err(&dev->pdev->dev, "hw reset failed disabling the device\n");
@@ -177,7 +165,12 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 		/* remove entry if already in list */
 		dev_dbg(&dev->pdev->dev, "remove iamthif and wd from the file list.\n");
 		mei_cl_unlink(&dev->wd_cl);
+		if (dev->open_handle_count > 0)
+			dev->open_handle_count--;
 		mei_cl_unlink(&dev->iamthif_cl);
+		if (dev->open_handle_count > 0)
+			dev->open_handle_count--;
+
 		mei_amthif_reset_params(dev);
 		memset(&dev->wr_ext_msg, 0, sizeof(dev->wr_ext_msg));
 	}
@@ -189,6 +182,10 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 	dev->rd_msg_hdr = 0;
 	dev->wd_pending = false;
 
+	if (unexpected)
+		dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n",
+			 mei_dev_state_str(dev->dev_state));
+
 	if (!interrupts_enabled) {
 		dev_dbg(&dev->pdev->dev, "intr not enabled end of reset\n");
 		return;
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 7a95c07..4b59cb7 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -113,13 +113,13 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
 
 		if (cb->response_buffer.size == 0 ||
 		    cb->response_buffer.data == NULL) {
-			cl_err(dev, cl, "response buffer is not allocated.\n");
+			dev_err(&dev->pdev->dev, "response buffer is not allocated.\n");
 			list_del(&cb->list);
 			return -ENOMEM;
 		}
 
 		if (cb->response_buffer.size < mei_hdr->length + cb->buf_idx) {
-			cl_dbg(dev, cl, "message overflow. size %d len %d idx %ld\n",
+			dev_dbg(&dev->pdev->dev, "message overflow. size %d len %d idx %ld\n",
 				cb->response_buffer.size,
 				mei_hdr->length, cb->buf_idx);
 			buffer = krealloc(cb->response_buffer.data,
@@ -127,7 +127,7 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
 					  GFP_KERNEL);
 
 			if (!buffer) {
-				cl_err(dev, cl, "allocation failed.\n");
+				dev_err(&dev->pdev->dev, "allocation failed.\n");
 				list_del(&cb->list);
 				return -ENOMEM;
 			}
@@ -143,7 +143,9 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
 		if (mei_hdr->msg_complete) {
 			cl->status = 0;
 			list_del(&cb->list);
-			cl_dbg(dev, cl, "completed read length = %lu\n",
+			dev_dbg(&dev->pdev->dev, "completed read H cl = %d, ME cl = %d, length = %lu\n",
+				cl->host_client_id,
+				cl->me_client_id,
 				cb->buf_idx);
 			list_add_tail(&cb->list, &complete_list->list);
 		}
@@ -216,10 +218,8 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
 			   s32 *slots, struct mei_cl_cb *cmpl_list)
 {
 	struct mei_device *dev = cl->dev;
-	u32 msg_slots = mei_data2slots(sizeof(struct hbm_flow_control));
-
-	int ret;
 
+	u32 msg_slots = mei_data2slots(sizeof(struct hbm_flow_control));
 
 	if (*slots < msg_slots) {
 		/* return the cancel routine */
@@ -229,14 +229,12 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
 
 	*slots -= msg_slots;
 
-	ret = mei_hbm_cl_flow_control_req(dev, cl);
-	if (ret) {
-		cl->status = ret;
+	if (mei_hbm_cl_flow_control_req(dev, cl)) {
+		cl->status = -ENODEV;
 		cb->buf_idx = 0;
 		list_move_tail(&cb->list, &cmpl_list->list);
-		return ret;
+		return -ENODEV;
 	}
-
 	list_move_tail(&cb->list, &dev->read_list.list);
 
 	return 0;
@@ -258,7 +256,6 @@ static int mei_cl_irq_ioctl(struct mei_cl *cl, struct mei_cl_cb *cb,
 			   s32 *slots, struct mei_cl_cb *cmpl_list)
 {
 	struct mei_device *dev = cl->dev;
-	int ret;
 
 	u32 msg_slots =
 		mei_data2slots(sizeof(struct hbm_client_connect_request));
@@ -273,12 +270,11 @@ static int mei_cl_irq_ioctl(struct mei_cl *cl, struct mei_cl_cb *cb,
 
 	cl->state = MEI_FILE_CONNECTING;
 
-	ret = mei_hbm_cl_connect_req(dev, cl);
-	if (ret) {
-		cl->status = ret;
+	if (mei_hbm_cl_connect_req(dev, cl)) {
+		cl->status = -ENODEV;
 		cb->buf_idx = 0;
 		list_del(&cb->list);
-		return ret;
+		return -ENODEV;
 	}
 
 	list_move_tail(&cb->list, &dev->ctrl_rd_list.list);
@@ -349,14 +345,14 @@ int mei_irq_read_handler(struct mei_device *dev,
 
 	/* decide where to read the message too */
 	if (!mei_hdr->host_addr) {
-		dev_dbg(&dev->pdev->dev, "call mei_hbm_dispatch.\n");
+		dev_dbg(&dev->pdev->dev, "call mei_irq_thread_read_bus_message.\n");
 		mei_hbm_dispatch(dev, mei_hdr);
-		dev_dbg(&dev->pdev->dev, "end mei_hbm_dispatch.\n");
+		dev_dbg(&dev->pdev->dev, "end mei_irq_thread_read_bus_message.\n");
 	} else if (mei_hdr->host_addr == dev->iamthif_cl.host_client_id &&
 		   (MEI_FILE_CONNECTED == dev->iamthif_cl.state) &&
 		   (dev->iamthif_state == MEI_IAMTHIF_READING)) {
 
-		dev_dbg(&dev->pdev->dev, "call mei_amthif_irq_read_msg.\n");
+		dev_dbg(&dev->pdev->dev, "call mei_irq_thread_read_iamthif_message.\n");
 		dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(mei_hdr));
 
 		ret = mei_amthif_irq_read_msg(dev, mei_hdr, cmpl_list);
@@ -427,12 +423,12 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
 		if (MEI_WRITING == cl->writing_state &&
 		    cb->fop_type == MEI_FOP_WRITE &&
 		    cl != &dev->iamthif_cl) {
-			cl_dbg(dev, cl, "MEI WRITE COMPLETE\n");
+			dev_dbg(&dev->pdev->dev, "MEI WRITE COMPLETE\n");
 			cl->writing_state = MEI_WRITE_COMPLETE;
 			list_add_tail(&cb->list, &cmpl_list->list);
 		}
 		if (cl == &dev->iamthif_cl) {
-			cl_dbg(dev, cl, "check iamthif flow control.\n");
+			dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
 			if (dev->iamthif_flow_control_pending) {
 				ret = mei_amthif_irq_read(dev, &slots);
 				if (ret)
@@ -513,6 +509,13 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
 		cl = cb->cl;
 		if (cl == NULL)
 			continue;
+		if (mei_cl_flow_ctrl_creds(cl) <= 0) {
+			dev_dbg(&dev->pdev->dev,
+				"No flow control credentials for client %d, not sending.\n",
+				cl->host_client_id);
+			continue;
+		}
+
 		if (cl == &dev->iamthif_cl)
 			ret = mei_amthif_irq_write_complete(cl, cb,
 						&slots, cmpl_list);
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 9661a81..cabeddd 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -60,45 +60,48 @@ static int mei_open(struct inode *inode, struct file *file)
 
 	int err;
 
+	err = -ENODEV;
 	if (!misc->parent)
-		return -ENODEV;
+		goto out;
 
 	pdev = container_of(misc->parent, struct pci_dev, dev);
 
 	dev = pci_get_drvdata(pdev);
 	if (!dev)
-		return -ENODEV;
+		goto out;
 
 	mutex_lock(&dev->device_lock);
-
-	cl = NULL;
+	err = -ENOMEM;
+	cl = mei_cl_allocate(dev);
+	if (!cl)
+		goto out_unlock;
 
 	err = -ENODEV;
 	if (dev->dev_state != MEI_DEV_ENABLED) {
 		dev_dbg(&dev->pdev->dev, "dev_state != MEI_ENABLED  dev_state = %s\n",
 		    mei_dev_state_str(dev->dev_state));
-		goto err_unlock;
+		goto out_unlock;
+	}
+	err = -EMFILE;
+	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
+		dev_err(&dev->pdev->dev, "open_handle_count exceded %d",
+			MEI_MAX_OPEN_HANDLE_COUNT);
+		goto out_unlock;
 	}
 
-	err = -ENOMEM;
-	cl = mei_cl_allocate(dev);
-	if (!cl)
-		goto err_unlock;
-
-	/* open_handle_count check is handled in the mei_cl_link */
 	err = mei_cl_link(cl, MEI_HOST_CLIENT_ID_ANY);
 	if (err)
-		goto err_unlock;
+		goto out_unlock;
 
 	file->private_data = cl;
-
 	mutex_unlock(&dev->device_lock);
 
 	return nonseekable_open(inode, file);
 
-err_unlock:
+out_unlock:
 	mutex_unlock(&dev->device_lock);
 	kfree(cl);
+out:
 	return err;
 }
 
@@ -141,6 +144,10 @@ static int mei_release(struct inode *inode, struct file *file)
 	    cl->host_client_id,
 	    cl->me_client_id);
 
+	if (dev->open_handle_count > 0) {
+		clear_bit(cl->host_client_id, dev->host_clients_map);
+		dev->open_handle_count--;
+	}
 	mei_cl_unlink(cl);
 
 
@@ -158,7 +165,10 @@ static int mei_release(struct inode *inode, struct file *file)
 
 	file->private_data = NULL;
 
-	mei_io_cb_free(cb);
+	if (cb) {
+		mei_io_cb_free(cb);
+		cb = NULL;
+	}
 
 	kfree(cl);
 out:
@@ -193,18 +203,12 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
 
 	dev = cl->dev;
 
-
 	mutex_lock(&dev->device_lock);
 	if (dev->dev_state != MEI_DEV_ENABLED) {
 		rets = -ENODEV;
 		goto out;
 	}
 
-	if (length == 0) {
-		rets = 0;
-		goto out;
-	}
-
 	if (cl == &dev->iamthif_cl) {
 		rets = mei_amthif_read(dev, file, ubuf, length, offset);
 		goto out;
@@ -343,14 +347,8 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 		rets = -ENODEV;
 		goto out;
 	}
-
-	if (length == 0) {
-		rets = 0;
-		goto out;
-	}
-
-	if (length > dev->me_clients[id].props.max_msg_length) {
-		rets = -EFBIG;
+	if (length > dev->me_clients[id].props.max_msg_length || length <= 0) {
+		rets = -EMSGSIZE;
 		goto out;
 	}
 
@@ -403,11 +401,8 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 		goto out;
 
 	rets = copy_from_user(write_cb->request_buffer.data, ubuf, length);
-	if (rets) {
-		dev_err(&dev->pdev->dev, "failed to copy data from userland\n");
-		rets = -EFAULT;
+	if (rets)
 		goto out;
-	}
 
 	if (cl == &dev->iamthif_cl) {
 		rets = mei_amthif_write(dev, write_cb);
@@ -494,11 +489,11 @@ static int mei_ioctl_connect_client(struct file *file,
 			rets = -ENODEV;
 			goto end;
 		}
+		clear_bit(cl->host_client_id, dev->host_clients_map);
 		mei_cl_unlink(cl);
 
 		kfree(cl);
 		cl = NULL;
-		dev->iamthif_open_count++;
 		file->private_data = &dev->iamthif_cl;
 
 		client = &data->out_client_properties;
@@ -569,7 +564,7 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
 	dev_dbg(&dev->pdev->dev, "copy connect data from user\n");
 	if (copy_from_user(connect_data, (char __user *)data,
 				sizeof(struct mei_connect_client_data))) {
-		dev_err(&dev->pdev->dev, "failed to copy data from userland\n");
+		dev_dbg(&dev->pdev->dev, "failed to copy data from userland\n");
 		rets = -EFAULT;
 		goto out;
 	}
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 406f68e..456b322 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -414,7 +414,6 @@ struct mei_device {
 	struct file *iamthif_file_object;
 	struct mei_cl iamthif_cl;
 	struct mei_cl_cb *iamthif_current_cb;
-	long iamthif_open_count;
 	int iamthif_mtu;
 	unsigned long iamthif_timer;
 	u32 iamthif_stall_timer;
diff --git a/drivers/misc/mei/nfc.c b/drivers/misc/mei/nfc.c
index 994ca4a..d0c6907 100644
--- a/drivers/misc/mei/nfc.c
+++ b/drivers/misc/mei/nfc.c
@@ -485,11 +485,8 @@ int mei_nfc_host_init(struct mei_device *dev)
 	if (ndev->cl_info)
 		return 0;
 
-	ndev->cl_info = mei_cl_allocate(dev);
-	ndev->cl = mei_cl_allocate(dev);
-
-	cl = ndev->cl;
-	cl_info = ndev->cl_info;
+	cl_info = mei_cl_allocate(dev);
+	cl = mei_cl_allocate(dev);
 
 	if (!cl || !cl_info) {
 		ret = -ENOMEM;
@@ -530,9 +527,10 @@ int mei_nfc_host_init(struct mei_device *dev)
 
 	cl->device_uuid = mei_nfc_guid;
 
-
 	list_add_tail(&cl->device_link, &dev->device_list);
 
+	ndev->cl_info = cl_info;
+	ndev->cl = cl;
 	ndev->req_id = 1;
 
 	INIT_WORK(&ndev->init_work, mei_nfc_init);
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 2cab3c0..1b3844e 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -76,11 +76,8 @@ static DEFINE_PCI_DEVICE_TABLE(mei_me_pci_tbl) = {
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_1)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_2)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_3)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_H)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_W)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_LP)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_HR)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_WPT_LP)},
 
 	/* required last entry */
 	{0, }
@@ -192,7 +189,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	schedule_delayed_work(&dev->timer_work, HZ);
 
-	dev_dbg(&pdev->dev, "initialization successful.\n");
+	pr_debug("initialization successful.\n");
 
 	return 0;
 
@@ -234,7 +231,7 @@ static void mei_me_remove(struct pci_dev *pdev)
 	hw = to_me_hw(dev);
 
 
-	dev_dbg(&pdev->dev, "stop\n");
+	dev_err(&pdev->dev, "stop\n");
 	mei_stop(dev);
 
 	/* disable interrupts */
@@ -242,6 +239,7 @@ static void mei_me_remove(struct pci_dev *pdev)
 
 	free_irq(pdev->irq, dev);
 	pci_disable_msi(pdev);
+	pci_set_drvdata(pdev, NULL);
 
 	if (hw->mem_addr)
 		pci_iounmap(pdev, hw->mem_addr);
@@ -264,7 +262,7 @@ static int mei_me_pci_suspend(struct device *device)
 	if (!dev)
 		return -ENODEV;
 
-	dev_dbg(&pdev->dev, "suspend\n");
+	dev_err(&pdev->dev, "suspend\n");
 
 	mei_stop(dev);
 
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index 9e35421..b892143 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -60,7 +60,7 @@ static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout)
 int mei_wd_host_init(struct mei_device *dev)
 {
 	struct mei_cl *cl = &dev->wd_cl;
-	int id;
+	int i;
 	int ret;
 
 	mei_cl_init(cl, dev);
@@ -70,19 +70,19 @@ int mei_wd_host_init(struct mei_device *dev)
 
 
 	/* check for valid client id */
-	id = mei_me_cl_by_uuid(dev, &mei_wd_guid);
-	if (id < 0) {
+	i = mei_me_cl_by_uuid(dev, &mei_wd_guid);
+	if (i < 0) {
 		dev_info(&dev->pdev->dev, "wd: failed to find the client\n");
-		return id;
+		return -ENOENT;
 	}
 
-	cl->me_client_id = dev->me_clients[id].client_id;
+	cl->me_client_id = dev->me_clients[i].client_id;
 
 	ret = mei_cl_link(cl, MEI_WD_HOST_CLIENT_ID);
 
 	if (ret < 0) {
 		dev_info(&dev->pdev->dev, "wd: failed link client\n");
-		return ret;
+		return -ENOENT;
 	}
 
 	cl->state = MEI_FILE_CONNECTING;
diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
deleted file mode 100644
index e42b331..0000000
--- a/drivers/misc/mic/Kconfig
+++ /dev/null
@@ -1,39 +0,0 @@
-comment "Intel MIC Host Driver"
-
-config INTEL_MIC_HOST
-	tristate "Intel MIC Host Driver"
-	depends on 64BIT && PCI && X86
-	select VHOST_RING
-	default N
-	help
-	  This enables Host Driver support for the Intel Many Integrated
-	  Core (MIC) family of PCIe form factor coprocessor devices that
-	  run a 64 bit Linux OS. The driver manages card OS state and
-	  enables communication between host and card. Intel MIC X100
-	  devices are currently supported.
-
-	  If you are building a host kernel with an Intel MIC device then
-	  say M (recommended) or Y, else say N. If unsure say N.
-
-	  More information about the Intel MIC family as well as the Linux
-	  OS and tools for MIC to use with this driver are available from
-	  <http://software.intel.com/en-us/mic-developer>.
-
-comment "Intel MIC Card Driver"
-
-config INTEL_MIC_CARD
-	tristate "Intel MIC Card Driver"
-	depends on 64BIT && X86
-	select VIRTIO
-	default N
-	help
-	  This enables card driver support for the Intel Many Integrated
-	  Core (MIC) device family. The card driver communicates shutdown/
-	  crash events to the host and allows registration/configuration of
-	  virtio devices. Intel MIC X100 devices are currently supported.
-
-	  If you are building a card kernel for an Intel MIC device then
-	  say M (recommended) or Y, else say N. If unsure say N.
-
-	  For more information see
-	  <http://software.intel.com/en-us/mic-developer>.
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
deleted file mode 100644
index 05b34d6..0000000
--- a/drivers/misc/mic/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-#
-# Makefile - Intel MIC Linux driver.
-# Copyright(c) 2013, Intel Corporation.
-#
-obj-$(CONFIG_INTEL_MIC_HOST) += host/
-obj-$(CONFIG_INTEL_MIC_CARD) += card/
diff --git a/drivers/misc/mic/card/Makefile b/drivers/misc/mic/card/Makefile
deleted file mode 100644
index 69d58be..0000000
--- a/drivers/misc/mic/card/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Makefile - Intel MIC Linux driver.
-# Copyright(c) 2013, Intel Corporation.
-#
-ccflags-y += -DINTEL_MIC_CARD
-
-obj-$(CONFIG_INTEL_MIC_CARD) += mic_card.o
-mic_card-y += mic_x100.o
-mic_card-y += mic_device.o
-mic_card-y += mic_debugfs.o
-mic_card-y += mic_virtio.o
diff --git a/drivers/misc/mic/card/mic_debugfs.c b/drivers/misc/mic/card/mic_debugfs.c
deleted file mode 100644
index 421b3d7..0000000
--- a/drivers/misc/mic/card/mic_debugfs.c
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Intel MIC Card driver.
- *
- */
-#include <linux/debugfs.h>
-#include <linux/delay.h>
-#include <linux/seq_file.h>
-#include <linux/interrupt.h>
-#include <linux/device.h>
-
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-
-/* Debugfs parent dir */
-static struct dentry *mic_dbg;
-
-/**
- * mic_intr_test - Send interrupts to host.
- */
-static int mic_intr_test(struct seq_file *s, void *unused)
-{
-	struct mic_driver *mdrv = s->private;
-	struct mic_device *mdev = &mdrv->mdev;
-
-	mic_send_intr(mdev, 0);
-	msleep(1000);
-	mic_send_intr(mdev, 1);
-	msleep(1000);
-	mic_send_intr(mdev, 2);
-	msleep(1000);
-	mic_send_intr(mdev, 3);
-	msleep(1000);
-
-	return 0;
-}
-
-static int mic_intr_test_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_intr_test, inode->i_private);
-}
-
-static int mic_intr_test_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations intr_test_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_intr_test_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_intr_test_release
-};
-
-/**
- * mic_create_card_debug_dir - Initialize MIC debugfs entries.
- */
-void __init mic_create_card_debug_dir(struct mic_driver *mdrv)
-{
-	struct dentry *d;
-
-	if (!mic_dbg)
-		return;
-
-	mdrv->dbg_dir = debugfs_create_dir(mdrv->name, mic_dbg);
-	if (!mdrv->dbg_dir) {
-		dev_err(mdrv->dev, "Cant create dbg_dir %s\n", mdrv->name);
-		return;
-	}
-
-	d = debugfs_create_file("intr_test", 0444, mdrv->dbg_dir,
-		mdrv, &intr_test_ops);
-
-	if (!d) {
-		dev_err(mdrv->dev,
-			"Cant create dbg intr_test %s\n", mdrv->name);
-		return;
-	}
-}
-
-/**
- * mic_delete_card_debug_dir - Uninitialize MIC debugfs entries.
- */
-void mic_delete_card_debug_dir(struct mic_driver *mdrv)
-{
-	if (!mdrv->dbg_dir)
-		return;
-
-	debugfs_remove_recursive(mdrv->dbg_dir);
-}
-
-/**
- * mic_init_card_debugfs - Initialize global debugfs entry.
- */
-void __init mic_init_card_debugfs(void)
-{
-	mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
-	if (!mic_dbg)
-		pr_err("can't create debugfs dir\n");
-}
-
-/**
- * mic_exit_card_debugfs - Uninitialize global debugfs entry
- */
-void mic_exit_card_debugfs(void)
-{
-	debugfs_remove(mic_dbg);
-}
diff --git a/drivers/misc/mic/card/mic_device.c b/drivers/misc/mic/card/mic_device.c
deleted file mode 100644
index d0980ff..0000000
--- a/drivers/misc/mic/card/mic_device.c
+++ /dev/null
@@ -1,305 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Intel MIC Card driver.
- *
- */
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_virtio.h"
-
-static struct mic_driver *g_drv;
-static struct mic_irq *shutdown_cookie;
-
-static void mic_notify_host(u8 state)
-{
-	struct mic_driver *mdrv = g_drv;
-	struct mic_bootparam __iomem *bootparam = mdrv->dp;
-
-	iowrite8(state, &bootparam->shutdown_status);
-	dev_dbg(mdrv->dev, "%s %d system_state %d\n",
-		__func__, __LINE__, state);
-	mic_send_intr(&mdrv->mdev, ioread8(&bootparam->c2h_shutdown_db));
-}
-
-static int mic_panic_event(struct notifier_block *this, unsigned long event,
-		void *ptr)
-{
-	struct mic_driver *mdrv = g_drv;
-	struct mic_bootparam __iomem *bootparam = mdrv->dp;
-
-	iowrite8(-1, &bootparam->h2c_config_db);
-	iowrite8(-1, &bootparam->h2c_shutdown_db);
-	mic_notify_host(MIC_CRASHED);
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block mic_panic = {
-	.notifier_call  = mic_panic_event,
-};
-
-static irqreturn_t mic_shutdown_isr(int irq, void *data)
-{
-	struct mic_driver *mdrv = g_drv;
-	struct mic_bootparam __iomem *bootparam = mdrv->dp;
-
-	mic_ack_interrupt(&g_drv->mdev);
-	if (ioread8(&bootparam->shutdown_card))
-		orderly_poweroff(true);
-	return IRQ_HANDLED;
-}
-
-static int mic_shutdown_init(void)
-{
-	int rc = 0;
-	struct mic_driver *mdrv = g_drv;
-	struct mic_bootparam __iomem *bootparam = mdrv->dp;
-	int shutdown_db;
-
-	shutdown_db = mic_next_card_db();
-	shutdown_cookie = mic_request_card_irq(mic_shutdown_isr,
-			"Shutdown", mdrv, shutdown_db);
-	if (IS_ERR(shutdown_cookie))
-		rc = PTR_ERR(shutdown_cookie);
-	else
-		iowrite8(shutdown_db, &bootparam->h2c_shutdown_db);
-	return rc;
-}
-
-static void mic_shutdown_uninit(void)
-{
-	struct mic_driver *mdrv = g_drv;
-	struct mic_bootparam __iomem *bootparam = mdrv->dp;
-
-	iowrite8(-1, &bootparam->h2c_shutdown_db);
-	mic_free_card_irq(shutdown_cookie, mdrv);
-}
-
-static int __init mic_dp_init(void)
-{
-	struct mic_driver *mdrv = g_drv;
-	struct mic_device *mdev = &mdrv->mdev;
-	struct mic_bootparam __iomem *bootparam;
-	u64 lo, hi, dp_dma_addr;
-	u32 magic;
-
-	lo = mic_read_spad(&mdrv->mdev, MIC_DPLO_SPAD);
-	hi = mic_read_spad(&mdrv->mdev, MIC_DPHI_SPAD);
-
-	dp_dma_addr = lo | (hi << 32);
-	mdrv->dp = mic_card_map(mdev, dp_dma_addr, MIC_DP_SIZE);
-	if (!mdrv->dp) {
-		dev_err(mdrv->dev, "Cannot remap Aperture BAR\n");
-		return -ENOMEM;
-	}
-	bootparam = mdrv->dp;
-	magic = ioread32(&bootparam->magic);
-	if (MIC_MAGIC != magic) {
-		dev_err(mdrv->dev, "bootparam magic mismatch 0x%x\n", magic);
-		return -EIO;
-	}
-	return 0;
-}
-
-/* Uninitialize the device page */
-static void mic_dp_uninit(void)
-{
-	mic_card_unmap(&g_drv->mdev, g_drv->dp);
-}
-
-/**
- * mic_request_card_irq - request an irq.
- *
- * @func: The callback function that handles the interrupt.
- * @name: The ASCII name of the callee requesting the irq.
- * @data: private data that is returned back when calling the
- * function handler.
- * @index: The doorbell index of the requester.
- *
- * returns: The cookie that is transparent to the caller. Passed
- * back when calling mic_free_irq. An appropriate error code
- * is returned on failure. Caller needs to use IS_ERR(return_val)
- * to check for failure and PTR_ERR(return_val) to obtained the
- * error code.
- *
- */
-struct mic_irq *mic_request_card_irq(irqreturn_t (*func)(int irq, void *data),
-	const char *name, void *data, int index)
-{
-	int rc = 0;
-	unsigned long cookie;
-	struct mic_driver *mdrv = g_drv;
-
-	rc  = request_irq(mic_db_to_irq(mdrv, index), func,
-		0, name, data);
-	if (rc) {
-		dev_err(mdrv->dev, "request_irq failed rc = %d\n", rc);
-		goto err;
-	}
-	mdrv->irq_info.irq_usage_count[index]++;
-	cookie = index;
-	return (struct mic_irq *)cookie;
-err:
-	return ERR_PTR(rc);
-}
-
-/**
- * mic_free_card_irq - free irq.
- *
- * @cookie: cookie obtained during a successful call to mic_request_irq
- * @data: private data specified by the calling function during the
- * mic_request_irq
- *
- * returns: none.
- */
-void mic_free_card_irq(struct mic_irq *cookie, void *data)
-{
-	int index;
-	struct mic_driver *mdrv = g_drv;
-
-	index = (unsigned long)cookie & 0xFFFFU;
-	free_irq(mic_db_to_irq(mdrv, index), data);
-	mdrv->irq_info.irq_usage_count[index]--;
-}
-
-/**
- * mic_next_card_db - Get the doorbell with minimum usage count.
- *
- * Returns the irq index.
- */
-int mic_next_card_db(void)
-{
-	int i;
-	int index = 0;
-	struct mic_driver *mdrv = g_drv;
-
-	for (i = 0; i < mdrv->intr_info.num_intr; i++) {
-		if (mdrv->irq_info.irq_usage_count[i] <
-			mdrv->irq_info.irq_usage_count[index])
-			index = i;
-	}
-
-	return index;
-}
-
-/**
- * mic_init_irq - Initialize irq information.
- *
- * Returns 0 in success. Appropriate error code on failure.
- */
-static int mic_init_irq(void)
-{
-	struct mic_driver *mdrv = g_drv;
-
-	mdrv->irq_info.irq_usage_count = kzalloc((sizeof(u32) *
-			mdrv->intr_info.num_intr),
-			GFP_KERNEL);
-	if (!mdrv->irq_info.irq_usage_count)
-		return -ENOMEM;
-	return 0;
-}
-
-/**
- * mic_uninit_irq - Uninitialize irq information.
- *
- * None.
- */
-static void mic_uninit_irq(void)
-{
-	struct mic_driver *mdrv = g_drv;
-
-	kfree(mdrv->irq_info.irq_usage_count);
-}
-
-/*
- * mic_driver_init - MIC driver initialization tasks.
- *
- * Returns 0 in success. Appropriate error code on failure.
- */
-int __init mic_driver_init(struct mic_driver *mdrv)
-{
-	int rc;
-
-	g_drv = mdrv;
-	/*
-	 * Unloading the card module is not supported. The MIC card module
-	 * handles fundamental operations like host/card initiated shutdowns
-	 * and informing the host about card crashes and cannot be unloaded.
-	 */
-	if (!try_module_get(mdrv->dev->driver->owner)) {
-		rc = -ENODEV;
-		goto done;
-	}
-	rc = mic_dp_init();
-	if (rc)
-		goto put;
-	rc = mic_init_irq();
-	if (rc)
-		goto dp_uninit;
-	rc = mic_shutdown_init();
-	if (rc)
-		goto irq_uninit;
-	rc = mic_devices_init(mdrv);
-	if (rc)
-		goto shutdown_uninit;
-	mic_create_card_debug_dir(mdrv);
-	atomic_notifier_chain_register(&panic_notifier_list, &mic_panic);
-done:
-	return rc;
-shutdown_uninit:
-	mic_shutdown_uninit();
-irq_uninit:
-	mic_uninit_irq();
-dp_uninit:
-	mic_dp_uninit();
-put:
-	module_put(mdrv->dev->driver->owner);
-	return rc;
-}
-
-/*
- * mic_driver_uninit - MIC driver uninitialization tasks.
- *
- * Returns None
- */
-void mic_driver_uninit(struct mic_driver *mdrv)
-{
-	mic_delete_card_debug_dir(mdrv);
-	mic_devices_uninit(mdrv);
-	/*
-	 * Inform the host about the shutdown status i.e. poweroff/restart etc.
-	 * The module cannot be unloaded so the only code path to call
-	 * mic_devices_uninit(..) is the shutdown callback.
-	 */
-	mic_notify_host(system_state);
-	mic_shutdown_uninit();
-	mic_uninit_irq();
-	mic_dp_uninit();
-	module_put(mdrv->dev->driver->owner);
-}
diff --git a/drivers/misc/mic/card/mic_device.h b/drivers/misc/mic/card/mic_device.h
deleted file mode 100644
index 347b9b3..0000000
--- a/drivers/misc/mic/card/mic_device.h
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Intel MIC Card driver.
- *
- */
-#ifndef _MIC_CARD_DEVICE_H_
-#define _MIC_CARD_DEVICE_H_
-
-#include <linux/workqueue.h>
-#include <linux/io.h>
-
-/**
- * struct mic_intr_info - Contains h/w specific interrupt sources info
- *
- * @num_intr: The number of irqs available
- */
-struct mic_intr_info {
-	u32 num_intr;
-};
-
-/**
- * struct mic_irq_info - OS specific irq information
- *
- * @irq_usage_count: usage count array tracking the number of sources
- * assigned for each irq.
- */
-struct mic_irq_info {
-	int *irq_usage_count;
-};
-
-/**
- * struct mic_device -  MIC device information.
- *
- * @mmio: MMIO bar information.
- */
-struct mic_device {
-	struct mic_mw mmio;
-};
-
-/**
- * struct mic_driver - MIC card driver information.
- *
- * @name: Name for MIC driver.
- * @dbg_dir: debugfs directory of this MIC device.
- * @dev: The device backing this MIC.
- * @dp: The pointer to the virtio device page.
- * @mdev: MIC device information for the host.
- * @hotplug_work: Hot plug work for adding/removing virtio devices.
- * @irq_info: The OS specific irq information
- * @intr_info: H/W specific interrupt information.
- */
-struct mic_driver {
-	char name[20];
-	struct dentry *dbg_dir;
-	struct device *dev;
-	void __iomem *dp;
-	struct mic_device mdev;
-	struct work_struct hotplug_work;
-	struct mic_irq_info irq_info;
-	struct mic_intr_info intr_info;
-};
-
-/**
- * struct mic_irq - opaque pointer used as cookie
- */
-struct mic_irq;
-
-/**
- * mic_mmio_read - read from an MMIO register.
- * @mw: MMIO register base virtual address.
- * @offset: register offset.
- *
- * RETURNS: register value.
- */
-static inline u32 mic_mmio_read(struct mic_mw *mw, u32 offset)
-{
-	return ioread32(mw->va + offset);
-}
-
-/**
- * mic_mmio_write - write to an MMIO register.
- * @mw: MMIO register base virtual address.
- * @val: the data value to put into the register
- * @offset: register offset.
- *
- * RETURNS: none.
- */
-static inline void
-mic_mmio_write(struct mic_mw *mw, u32 val, u32 offset)
-{
-	iowrite32(val, mw->va + offset);
-}
-
-int mic_driver_init(struct mic_driver *mdrv);
-void mic_driver_uninit(struct mic_driver *mdrv);
-int mic_next_card_db(void);
-struct mic_irq *mic_request_card_irq(irqreturn_t (*func)(int irq, void *data),
-	const char *name, void *data, int intr_src);
-void mic_free_card_irq(struct mic_irq *cookie, void *data);
-u32 mic_read_spad(struct mic_device *mdev, unsigned int idx);
-void mic_send_intr(struct mic_device *mdev, int doorbell);
-int mic_db_to_irq(struct mic_driver *mdrv, int db);
-u32 mic_ack_interrupt(struct mic_device *mdev);
-void mic_hw_intr_init(struct mic_driver *mdrv);
-void __iomem *
-mic_card_map(struct mic_device *mdev, dma_addr_t addr, size_t size);
-void mic_card_unmap(struct mic_device *mdev, void __iomem *addr);
-void __init mic_create_card_debug_dir(struct mic_driver *mdrv);
-void mic_delete_card_debug_dir(struct mic_driver *mdrv);
-void __init mic_init_card_debugfs(void);
-void mic_exit_card_debugfs(void);
-#endif
diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c
deleted file mode 100644
index 653799b..0000000
--- a/drivers/misc/mic/card/mic_virtio.c
+++ /dev/null
@@ -1,633 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Adapted from:
- *
- * virtio for kvm on s390
- *
- * Copyright IBM Corp. 2008
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
- *
- * Intel MIC Card driver.
- *
- */
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/virtio_config.h>
-
-#include "../common/mic_dev.h"
-#include "mic_virtio.h"
-
-#define VIRTIO_SUBCODE_64 0x0D00
-
-#define MIC_MAX_VRINGS                4
-struct mic_vdev {
-	struct virtio_device vdev;
-	struct mic_device_desc __iomem *desc;
-	struct mic_device_ctrl __iomem *dc;
-	struct mic_device *mdev;
-	void __iomem *vr[MIC_MAX_VRINGS];
-	int used_size[MIC_MAX_VRINGS];
-	struct completion reset_done;
-	struct mic_irq *virtio_cookie;
-	int c2h_vdev_db;
-};
-
-static struct mic_irq *virtio_config_cookie;
-#define to_micvdev(vd) container_of(vd, struct mic_vdev, vdev)
-
-/* Helper API to obtain the parent of the virtio device */
-static inline struct device *mic_dev(struct mic_vdev *mvdev)
-{
-	return mvdev->vdev.dev.parent;
-}
-
-/* This gets the device's feature bits. */
-static u32 mic_get_features(struct virtio_device *vdev)
-{
-	unsigned int i, bits;
-	u32 features = 0;
-	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
-	u8 __iomem *in_features = mic_vq_features(desc);
-	int feature_len = ioread8(&desc->feature_len);
-
-	bits = min_t(unsigned, feature_len,
-		sizeof(vdev->features)) * 8;
-	for (i = 0; i < bits; i++)
-		if (ioread8(&in_features[i / 8]) & (BIT(i % 8)))
-			features |= BIT(i);
-
-	return features;
-}
-
-static void mic_finalize_features(struct virtio_device *vdev)
-{
-	unsigned int i, bits;
-	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
-	u8 feature_len = ioread8(&desc->feature_len);
-	/* Second half of bitmap is features we accept. */
-	u8 __iomem *out_features =
-		mic_vq_features(desc) + feature_len;
-
-	/* Give virtio_ring a chance to accept features. */
-	vring_transport_features(vdev);
-
-	memset_io(out_features, 0, feature_len);
-	bits = min_t(unsigned, feature_len,
-		sizeof(vdev->features)) * 8;
-	for (i = 0; i < bits; i++) {
-		if (test_bit(i, vdev->features))
-			iowrite8(ioread8(&out_features[i / 8]) | (1 << (i % 8)),
-				 &out_features[i / 8]);
-	}
-}
-
-/*
- * Reading and writing elements in config space
- */
-static void mic_get(struct virtio_device *vdev, unsigned int offset,
-		   void *buf, unsigned len)
-{
-	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
-
-	if (offset + len > ioread8(&desc->config_len))
-		return;
-	memcpy_fromio(buf, mic_vq_configspace(desc) + offset, len);
-}
-
-static void mic_set(struct virtio_device *vdev, unsigned int offset,
-		   const void *buf, unsigned len)
-{
-	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
-
-	if (offset + len > ioread8(&desc->config_len))
-		return;
-	memcpy_toio(mic_vq_configspace(desc) + offset, buf, len);
-}
-
-/*
- * The operations to get and set the status word just access the status
- * field of the device descriptor. set_status also interrupts the host
- * to tell about status changes.
- */
-static u8 mic_get_status(struct virtio_device *vdev)
-{
-	return ioread8(&to_micvdev(vdev)->desc->status);
-}
-
-static void mic_set_status(struct virtio_device *vdev, u8 status)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	if (!status)
-		return;
-	iowrite8(status, &mvdev->desc->status);
-	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
-}
-
-/* Inform host on a virtio device reset and wait for ack from host */
-static void mic_reset_inform_host(struct virtio_device *vdev)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	struct mic_device_ctrl __iomem *dc = mvdev->dc;
-	int retry;
-
-	iowrite8(0, &dc->host_ack);
-	iowrite8(1, &dc->vdev_reset);
-	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
-
-	/* Wait till host completes all card accesses and acks the reset */
-	for (retry = 100; retry--;) {
-		if (ioread8(&dc->host_ack))
-			break;
-		msleep(100);
-	};
-
-	dev_dbg(mic_dev(mvdev), "%s: retry: %d\n", __func__, retry);
-
-	/* Reset status to 0 in case we timed out */
-	iowrite8(0, &mvdev->desc->status);
-}
-
-static void mic_reset(struct virtio_device *vdev)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-
-	dev_dbg(mic_dev(mvdev), "%s: virtio id %d\n",
-		__func__, vdev->id.device);
-
-	mic_reset_inform_host(vdev);
-	complete_all(&mvdev->reset_done);
-}
-
-/*
- * The virtio_ring code calls this API when it wants to notify the Host.
- */
-static bool mic_notify(struct virtqueue *vq)
-{
-	struct mic_vdev *mvdev = vq->priv;
-
-	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
-	return true;
-}
-
-static void mic_del_vq(struct virtqueue *vq, int n)
-{
-	struct mic_vdev *mvdev = to_micvdev(vq->vdev);
-	struct vring *vr = (struct vring *)(vq + 1);
-
-	free_pages((unsigned long) vr->used, get_order(mvdev->used_size[n]));
-	vring_del_virtqueue(vq);
-	mic_card_unmap(mvdev->mdev, mvdev->vr[n]);
-	mvdev->vr[n] = NULL;
-}
-
-static void mic_del_vqs(struct virtio_device *vdev)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	struct virtqueue *vq, *n;
-	int idx = 0;
-
-	dev_dbg(mic_dev(mvdev), "%s\n", __func__);
-
-	list_for_each_entry_safe(vq, n, &vdev->vqs, list)
-		mic_del_vq(vq, idx++);
-}
-
-/*
- * This routine will assign vring's allocated in host/io memory. Code in
- * virtio_ring.c however continues to access this io memory as if it were local
- * memory without io accessors.
- */
-static struct virtqueue *mic_find_vq(struct virtio_device *vdev,
-				     unsigned index,
-				     void (*callback)(struct virtqueue *vq),
-				     const char *name)
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	struct mic_vqconfig __iomem *vqconfig;
-	struct mic_vqconfig config;
-	struct virtqueue *vq;
-	void __iomem *va;
-	struct _mic_vring_info __iomem *info;
-	void *used;
-	int vr_size, _vr_size, err, magic;
-	struct vring *vr;
-	u8 type = ioread8(&mvdev->desc->type);
-
-	if (index >= ioread8(&mvdev->desc->num_vq))
-		return ERR_PTR(-ENOENT);
-
-	if (!name)
-		return ERR_PTR(-ENOENT);
-
-	/* First assign the vring's allocated in host memory */
-	vqconfig = mic_vq_config(mvdev->desc) + index;
-	memcpy_fromio(&config, vqconfig, sizeof(config));
-	_vr_size = vring_size(le16_to_cpu(config.num), MIC_VIRTIO_RING_ALIGN);
-	vr_size = PAGE_ALIGN(_vr_size + sizeof(struct _mic_vring_info));
-	va = mic_card_map(mvdev->mdev, le64_to_cpu(config.address), vr_size);
-	if (!va)
-		return ERR_PTR(-ENOMEM);
-	mvdev->vr[index] = va;
-	memset_io(va, 0x0, _vr_size);
-	vq = vring_new_virtqueue(index, le16_to_cpu(config.num),
-				 MIC_VIRTIO_RING_ALIGN, vdev, false,
-				 (void __force *)va, mic_notify, callback,
-				 name);
-	if (!vq) {
-		err = -ENOMEM;
-		goto unmap;
-	}
-	info = va + _vr_size;
-	magic = ioread32(&info->magic);
-
-	if (WARN(magic != MIC_MAGIC + type + index, "magic mismatch")) {
-		err = -EIO;
-		goto unmap;
-	}
-
-	/* Allocate and reassign used ring now */
-	mvdev->used_size[index] = PAGE_ALIGN(sizeof(__u16) * 3 +
-					     sizeof(struct vring_used_elem) *
-					     le16_to_cpu(config.num));
-	used = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
-					get_order(mvdev->used_size[index]));
-	if (!used) {
-		err = -ENOMEM;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, err);
-		goto del_vq;
-	}
-	iowrite64(virt_to_phys(used), &vqconfig->used_address);
-
-	/*
-	 * To reassign the used ring here we are directly accessing
-	 * struct vring_virtqueue which is a private data structure
-	 * in virtio_ring.c. At the minimum, a BUILD_BUG_ON() in
-	 * vring_new_virtqueue() would ensure that
-	 *  (&vq->vring == (struct vring *) (&vq->vq + 1));
-	 */
-	vr = (struct vring *)(vq + 1);
-	vr->used = used;
-
-	vq->priv = mvdev;
-	return vq;
-del_vq:
-	vring_del_virtqueue(vq);
-unmap:
-	mic_card_unmap(mvdev->mdev, mvdev->vr[index]);
-	return ERR_PTR(err);
-}
-
-static int mic_find_vqs(struct virtio_device *vdev, unsigned nvqs,
-			struct virtqueue *vqs[],
-			vq_callback_t *callbacks[],
-			const char *names[])
-{
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-	struct mic_device_ctrl __iomem *dc = mvdev->dc;
-	int i, err, retry;
-
-	/* We must have this many virtqueues. */
-	if (nvqs > ioread8(&mvdev->desc->num_vq))
-		return -ENOENT;
-
-	for (i = 0; i < nvqs; ++i) {
-		dev_dbg(mic_dev(mvdev), "%s: %d: %s\n",
-			__func__, i, names[i]);
-		vqs[i] = mic_find_vq(vdev, i, callbacks[i], names[i]);
-		if (IS_ERR(vqs[i])) {
-			err = PTR_ERR(vqs[i]);
-			goto error;
-		}
-	}
-
-	iowrite8(1, &dc->used_address_updated);
-	/*
-	 * Send an interrupt to the host to inform it that used
-	 * rings have been re-assigned.
-	 */
-	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
-	for (retry = 100; retry--;) {
-		if (!ioread8(&dc->used_address_updated))
-			break;
-		msleep(100);
-	};
-
-	dev_dbg(mic_dev(mvdev), "%s: retry: %d\n", __func__, retry);
-	if (!retry) {
-		err = -ENODEV;
-		goto error;
-	}
-
-	return 0;
-error:
-	mic_del_vqs(vdev);
-	return err;
-}
-
-/*
- * The config ops structure as defined by virtio config
- */
-static struct virtio_config_ops mic_vq_config_ops = {
-	.get_features = mic_get_features,
-	.finalize_features = mic_finalize_features,
-	.get = mic_get,
-	.set = mic_set,
-	.get_status = mic_get_status,
-	.set_status = mic_set_status,
-	.reset = mic_reset,
-	.find_vqs = mic_find_vqs,
-	.del_vqs = mic_del_vqs,
-};
-
-static irqreturn_t
-mic_virtio_intr_handler(int irq, void *data)
-{
-	struct mic_vdev *mvdev = data;
-	struct virtqueue *vq;
-
-	mic_ack_interrupt(mvdev->mdev);
-	list_for_each_entry(vq, &mvdev->vdev.vqs, list)
-		vring_interrupt(0, vq);
-
-	return IRQ_HANDLED;
-}
-
-static void mic_virtio_release_dev(struct device *_d)
-{
-	/*
-	 * No need for a release method similar to virtio PCI.
-	 * Provide an empty one to avoid getting a warning from core.
-	 */
-}
-
-/*
- * adds a new device and register it with virtio
- * appropriate drivers are loaded by the device model
- */
-static int mic_add_device(struct mic_device_desc __iomem *d,
-	unsigned int offset, struct mic_driver *mdrv)
-{
-	struct mic_vdev *mvdev;
-	int ret;
-	int virtio_db;
-	u8 type = ioread8(&d->type);
-
-	mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL);
-	if (!mvdev) {
-		dev_err(mdrv->dev, "Cannot allocate mic dev %u type %u\n",
-			offset, type);
-		return -ENOMEM;
-	}
-
-	mvdev->mdev = &mdrv->mdev;
-	mvdev->vdev.dev.parent = mdrv->dev;
-	mvdev->vdev.dev.release = mic_virtio_release_dev;
-	mvdev->vdev.id.device = type;
-	mvdev->vdev.config = &mic_vq_config_ops;
-	mvdev->desc = d;
-	mvdev->dc = (void __iomem *)d + mic_aligned_desc_size(d);
-	init_completion(&mvdev->reset_done);
-
-	virtio_db = mic_next_card_db();
-	mvdev->virtio_cookie = mic_request_card_irq(mic_virtio_intr_handler,
-			"virtio intr", mvdev, virtio_db);
-	if (IS_ERR(mvdev->virtio_cookie)) {
-		ret = PTR_ERR(mvdev->virtio_cookie);
-		goto kfree;
-	}
-	iowrite8((u8)virtio_db, &mvdev->dc->h2c_vdev_db);
-	mvdev->c2h_vdev_db = ioread8(&mvdev->dc->c2h_vdev_db);
-
-	ret = register_virtio_device(&mvdev->vdev);
-	if (ret) {
-		dev_err(mic_dev(mvdev),
-			"Failed to register mic device %u type %u\n",
-			offset, type);
-		goto free_irq;
-	}
-	iowrite64((u64)mvdev, &mvdev->dc->vdev);
-	dev_dbg(mic_dev(mvdev), "%s: registered mic device %u type %u mvdev %p\n",
-		__func__, offset, type, mvdev);
-
-	return 0;
-
-free_irq:
-	mic_free_card_irq(mvdev->virtio_cookie, mvdev);
-kfree:
-	kfree(mvdev);
-	return ret;
-}
-
-/*
- * match for a mic device with a specific desc pointer
- */
-static int mic_match_desc(struct device *dev, void *data)
-{
-	struct virtio_device *vdev = dev_to_virtio(dev);
-	struct mic_vdev *mvdev = to_micvdev(vdev);
-
-	return mvdev->desc == (void __iomem *)data;
-}
-
-static void mic_handle_config_change(struct mic_device_desc __iomem *d,
-	unsigned int offset, struct mic_driver *mdrv)
-{
-	struct mic_device_ctrl __iomem *dc
-		= (void __iomem *)d + mic_aligned_desc_size(d);
-	struct mic_vdev *mvdev = (struct mic_vdev *)ioread64(&dc->vdev);
-	struct virtio_driver *drv;
-
-	if (ioread8(&dc->config_change) != MIC_VIRTIO_PARAM_CONFIG_CHANGED)
-		return;
-
-	dev_dbg(mdrv->dev, "%s %d\n", __func__, __LINE__);
-	drv = container_of(mvdev->vdev.dev.driver,
-				struct virtio_driver, driver);
-	if (drv->config_changed)
-		drv->config_changed(&mvdev->vdev);
-	iowrite8(1, &dc->guest_ack);
-}
-
-/*
- * removes a virtio device if a hot remove event has been
- * requested by the host.
- */
-static int mic_remove_device(struct mic_device_desc __iomem *d,
-	unsigned int offset, struct mic_driver *mdrv)
-{
-	struct mic_device_ctrl __iomem *dc
-		= (void __iomem *)d + mic_aligned_desc_size(d);
-	struct mic_vdev *mvdev = (struct mic_vdev *)ioread64(&dc->vdev);
-	u8 status;
-	int ret = -1;
-
-	if (ioread8(&dc->config_change) == MIC_VIRTIO_PARAM_DEV_REMOVE) {
-		dev_dbg(mdrv->dev,
-			"%s %d config_change %d type %d mvdev %p\n",
-			__func__, __LINE__,
-			ioread8(&dc->config_change), ioread8(&d->type), mvdev);
-
-		status = ioread8(&d->status);
-		reinit_completion(&mvdev->reset_done);
-		unregister_virtio_device(&mvdev->vdev);
-		mic_free_card_irq(mvdev->virtio_cookie, mvdev);
-		if (status & VIRTIO_CONFIG_S_DRIVER_OK)
-			wait_for_completion(&mvdev->reset_done);
-		kfree(mvdev);
-		iowrite8(1, &dc->guest_ack);
-		dev_dbg(mdrv->dev, "%s %d guest_ack %d\n",
-			__func__, __LINE__, ioread8(&dc->guest_ack));
-		ret = 0;
-	}
-
-	return ret;
-}
-
-#define REMOVE_DEVICES true
-
-static void mic_scan_devices(struct mic_driver *mdrv, bool remove)
-{
-	s8 type;
-	unsigned int i;
-	struct mic_device_desc __iomem *d;
-	struct mic_device_ctrl __iomem *dc;
-	struct device *dev;
-	int ret;
-
-	for (i = sizeof(struct mic_bootparam); i < MIC_DP_SIZE;
-		i += mic_total_desc_size(d)) {
-		d = mdrv->dp + i;
-		dc = (void __iomem *)d + mic_aligned_desc_size(d);
-		/*
-		 * This read barrier is paired with the corresponding write
-		 * barrier on the host which is inserted before adding or
-		 * removing a virtio device descriptor, by updating the type.
-		 */
-		rmb();
-		type = ioread8(&d->type);
-
-		/* end of list */
-		if (type == 0)
-			break;
-
-		if (type == -1)
-			continue;
-
-		/* device already exists */
-		dev = device_find_child(mdrv->dev, (void __force *)d,
-					mic_match_desc);
-		if (dev) {
-			if (remove)
-				iowrite8(MIC_VIRTIO_PARAM_DEV_REMOVE,
-					 &dc->config_change);
-			put_device(dev);
-			mic_handle_config_change(d, i, mdrv);
-			ret = mic_remove_device(d, i, mdrv);
-			if (!ret && !remove)
-				iowrite8(-1, &d->type);
-			if (remove) {
-				iowrite8(0, &dc->config_change);
-				iowrite8(0, &dc->guest_ack);
-			}
-			continue;
-		}
-
-		/* new device */
-		dev_dbg(mdrv->dev, "%s %d Adding new virtio device %p\n",
-			__func__, __LINE__, d);
-		if (!remove)
-			mic_add_device(d, i, mdrv);
-	}
-}
-
-/*
- * mic_hotplug_device tries to find changes in the device page.
- */
-static void mic_hotplug_devices(struct work_struct *work)
-{
-	struct mic_driver *mdrv = container_of(work,
-		struct mic_driver, hotplug_work);
-
-	mic_scan_devices(mdrv, !REMOVE_DEVICES);
-}
-
-/*
- * Interrupt handler for hot plug/config changes etc.
- */
-static irqreturn_t
-mic_extint_handler(int irq, void *data)
-{
-	struct mic_driver *mdrv = (struct mic_driver *)data;
-
-	dev_dbg(mdrv->dev, "%s %d hotplug work\n",
-		__func__, __LINE__);
-	mic_ack_interrupt(&mdrv->mdev);
-	schedule_work(&mdrv->hotplug_work);
-	return IRQ_HANDLED;
-}
-
-/*
- * Init function for virtio
- */
-int mic_devices_init(struct mic_driver *mdrv)
-{
-	int rc;
-	struct mic_bootparam __iomem *bootparam;
-	int config_db;
-
-	INIT_WORK(&mdrv->hotplug_work, mic_hotplug_devices);
-	mic_scan_devices(mdrv, !REMOVE_DEVICES);
-
-	config_db = mic_next_card_db();
-	virtio_config_cookie = mic_request_card_irq(mic_extint_handler,
-			"virtio_config_intr", mdrv, config_db);
-	if (IS_ERR(virtio_config_cookie)) {
-		rc = PTR_ERR(virtio_config_cookie);
-		goto exit;
-	}
-
-	bootparam = mdrv->dp;
-	iowrite8(config_db, &bootparam->h2c_config_db);
-	return 0;
-exit:
-	return rc;
-}
-
-/*
- * Uninit function for virtio
- */
-void mic_devices_uninit(struct mic_driver *mdrv)
-{
-	struct mic_bootparam __iomem *bootparam = mdrv->dp;
-	iowrite8(-1, &bootparam->h2c_config_db);
-	mic_free_card_irq(virtio_config_cookie, mdrv);
-	flush_work(&mdrv->hotplug_work);
-	mic_scan_devices(mdrv, REMOVE_DEVICES);
-}
diff --git a/drivers/misc/mic/card/mic_virtio.h b/drivers/misc/mic/card/mic_virtio.h
deleted file mode 100644
index d0407ba..0000000
--- a/drivers/misc/mic/card/mic_virtio.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Intel MIC Card driver.
- *
- */
-#ifndef __MIC_CARD_VIRTIO_H
-#define __MIC_CARD_VIRTIO_H
-
-#include <linux/mic_common.h>
-#include "mic_device.h"
-
-/*
- * 64 bit I/O access
- */
-#ifndef ioread64
-#define ioread64 readq
-#endif
-#ifndef iowrite64
-#define iowrite64 writeq
-#endif
-
-static inline unsigned mic_desc_size(struct mic_device_desc __iomem *desc)
-{
-	return sizeof(*desc)
-		+ ioread8(&desc->num_vq) * sizeof(struct mic_vqconfig)
-		+ ioread8(&desc->feature_len) * 2
-		+ ioread8(&desc->config_len);
-}
-
-static inline struct mic_vqconfig __iomem *
-mic_vq_config(struct mic_device_desc __iomem *desc)
-{
-	return (struct mic_vqconfig __iomem *)(desc + 1);
-}
-
-static inline __u8 __iomem *
-mic_vq_features(struct mic_device_desc __iomem *desc)
-{
-	return (__u8 __iomem *)(mic_vq_config(desc) + ioread8(&desc->num_vq));
-}
-
-static inline __u8 __iomem *
-mic_vq_configspace(struct mic_device_desc __iomem *desc)
-{
-	return mic_vq_features(desc) + ioread8(&desc->feature_len) * 2;
-}
-static inline unsigned mic_total_desc_size(struct mic_device_desc __iomem *desc)
-{
-	return mic_aligned_desc_size(desc) + sizeof(struct mic_device_ctrl);
-}
-
-int mic_devices_init(struct mic_driver *mdrv);
-void mic_devices_uninit(struct mic_driver *mdrv);
-
-#endif
diff --git a/drivers/misc/mic/card/mic_x100.c b/drivers/misc/mic/card/mic_x100.c
deleted file mode 100644
index 2868945..0000000
--- a/drivers/misc/mic/card/mic_x100.c
+++ /dev/null
@@ -1,256 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Intel MIC Card driver.
- *
- */
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/platform_device.h>
-
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_x100.h"
-
-static const char mic_driver_name[] = "mic";
-
-static struct mic_driver g_drv;
-
-/**
- * mic_read_spad - read from the scratchpad register
- * @mdev: pointer to mic_device instance
- * @idx: index to scratchpad register, 0 based
- *
- * This function allows reading of the 32bit scratchpad register.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-u32 mic_read_spad(struct mic_device *mdev, unsigned int idx)
-{
-	return mic_mmio_read(&mdev->mmio,
-		MIC_X100_SBOX_BASE_ADDRESS +
-		MIC_X100_SBOX_SPAD0 + idx * 4);
-}
-
-/**
- * __mic_send_intr - Send interrupt to Host.
- * @mdev: pointer to mic_device instance
- * @doorbell: Doorbell number.
- */
-void mic_send_intr(struct mic_device *mdev, int doorbell)
-{
-	struct mic_mw *mw = &mdev->mmio;
-
-	if (doorbell > MIC_X100_MAX_DOORBELL_IDX)
-		return;
-	/* Ensure that the interrupt is ordered w.r.t previous stores. */
-	wmb();
-	mic_mmio_write(mw, MIC_X100_SBOX_SDBIC0_DBREQ_BIT,
-		       MIC_X100_SBOX_BASE_ADDRESS +
-		       (MIC_X100_SBOX_SDBIC0 + (4 * doorbell)));
-}
-
-/**
- * mic_ack_interrupt - Device specific interrupt handling.
- * @mdev: pointer to mic_device instance
- *
- * Returns: bitmask of doorbell events triggered.
- */
-u32 mic_ack_interrupt(struct mic_device *mdev)
-{
-	return 0;
-}
-
-static inline int mic_get_sbox_irq(int db)
-{
-	return MIC_X100_IRQ_BASE + db;
-}
-
-static inline int mic_get_rdmasr_irq(int index)
-{
-	return  MIC_X100_RDMASR_IRQ_BASE + index;
-}
-
-/**
- * mic_hw_intr_init - Initialize h/w specific interrupt
- * information.
- * @mdrv: pointer to mic_driver
- */
-void mic_hw_intr_init(struct mic_driver *mdrv)
-{
-	mdrv->intr_info.num_intr = MIC_X100_NUM_SBOX_IRQ +
-				MIC_X100_NUM_RDMASR_IRQ;
-}
-
-/**
- * mic_db_to_irq - Retrieve irq number corresponding to a doorbell.
- * @mdrv: pointer to mic_driver
- * @db: The doorbell obtained for which the irq is needed. Doorbell
- * may correspond to an sbox doorbell or an rdmasr index.
- *
- * Returns the irq corresponding to the doorbell.
- */
-int mic_db_to_irq(struct mic_driver *mdrv, int db)
-{
-	int rdmasr_index;
-	if (db < MIC_X100_NUM_SBOX_IRQ) {
-		return mic_get_sbox_irq(db);
-	} else {
-		rdmasr_index = db - MIC_X100_NUM_SBOX_IRQ +
-			MIC_X100_RDMASR_IRQ_BASE;
-		return mic_get_rdmasr_irq(rdmasr_index);
-	}
-}
-
-/*
- * mic_card_map - Allocate virtual address for a remote memory region.
- * @mdev: pointer to mic_device instance.
- * @addr: Remote DMA address.
- * @size: Size of the region.
- *
- * Returns: Virtual address backing the remote memory region.
- */
-void __iomem *
-mic_card_map(struct mic_device *mdev, dma_addr_t addr, size_t size)
-{
-	return ioremap(addr, size);
-}
-
-/*
- * mic_card_unmap - Unmap the virtual address for a remote memory region.
- * @mdev: pointer to mic_device instance.
- * @addr: Virtual address for remote memory region.
- *
- * Returns: None.
- */
-void mic_card_unmap(struct mic_device *mdev, void __iomem *addr)
-{
-	iounmap(addr);
-}
-
-static int __init mic_probe(struct platform_device *pdev)
-{
-	struct mic_driver *mdrv = &g_drv;
-	struct mic_device *mdev = &mdrv->mdev;
-	int rc = 0;
-
-	mdrv->dev = &pdev->dev;
-	snprintf(mdrv->name, sizeof(mic_driver_name), mic_driver_name);
-
-	mdev->mmio.pa = MIC_X100_MMIO_BASE;
-	mdev->mmio.len = MIC_X100_MMIO_LEN;
-	mdev->mmio.va = ioremap(MIC_X100_MMIO_BASE, MIC_X100_MMIO_LEN);
-	if (!mdev->mmio.va) {
-		dev_err(&pdev->dev, "Cannot remap MMIO BAR\n");
-		rc = -EIO;
-		goto done;
-	}
-	mic_hw_intr_init(mdrv);
-	rc = mic_driver_init(mdrv);
-	if (rc) {
-		dev_err(&pdev->dev, "mic_driver_init failed rc %d\n", rc);
-		goto iounmap;
-	}
-done:
-	return rc;
-iounmap:
-	iounmap(mdev->mmio.va);
-	return rc;
-}
-
-static int mic_remove(struct platform_device *pdev)
-{
-	struct mic_driver *mdrv = &g_drv;
-	struct mic_device *mdev = &mdrv->mdev;
-
-	mic_driver_uninit(mdrv);
-	iounmap(mdev->mmio.va);
-	return 0;
-}
-
-static void mic_platform_shutdown(struct platform_device *pdev)
-{
-	mic_remove(pdev);
-}
-
-static struct platform_device mic_platform_dev = {
-	.name = mic_driver_name,
-	.id   = 0,
-	.num_resources = 0,
-};
-
-static struct platform_driver __refdata mic_platform_driver = {
-	.probe = mic_probe,
-	.remove = mic_remove,
-	.shutdown = mic_platform_shutdown,
-	.driver         = {
-		.name   = mic_driver_name,
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init mic_init(void)
-{
-	int ret;
-	struct cpuinfo_x86 *c = &cpu_data(0);
-
-	if (!(c->x86 == 11 && c->x86_model == 1)) {
-		ret = -ENODEV;
-		pr_err("%s not running on X100 ret %d\n", __func__, ret);
-		goto done;
-	}
-
-	mic_init_card_debugfs();
-	ret = platform_device_register(&mic_platform_dev);
-	if (ret) {
-		pr_err("platform_device_register ret %d\n", ret);
-		goto cleanup_debugfs;
-	}
-	ret = platform_driver_register(&mic_platform_driver);
-	if (ret) {
-		pr_err("platform_driver_register ret %d\n", ret);
-		goto device_unregister;
-	}
-	return ret;
-
-device_unregister:
-	platform_device_unregister(&mic_platform_dev);
-cleanup_debugfs:
-	mic_exit_card_debugfs();
-done:
-	return ret;
-}
-
-static void __exit mic_exit(void)
-{
-	platform_driver_unregister(&mic_platform_driver);
-	platform_device_unregister(&mic_platform_dev);
-	mic_exit_card_debugfs();
-}
-
-module_init(mic_init);
-module_exit(mic_exit);
-
-MODULE_AUTHOR("Intel Corporation");
-MODULE_DESCRIPTION("Intel(R) MIC X100 Card driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/mic/card/mic_x100.h b/drivers/misc/mic/card/mic_x100.h
deleted file mode 100644
index d66ea55..0000000
--- a/drivers/misc/mic/card/mic_x100.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Disclaimer: The codes contained in these modules may be specific to
- * the Intel Software Development Platform codenamed: Knights Ferry, and
- * the Intel product codenamed: Knights Corner, and are not backward
- * compatible with other Intel products. Additionally, Intel will NOT
- * support the codes or instruction set in future products.
- *
- * Intel MIC Card driver.
- *
- */
-#ifndef _MIC_X100_CARD_H_
-#define _MIC_X100_CARD_H_
-
-#define MIC_X100_MMIO_BASE 0x08007C0000ULL
-#define MIC_X100_MMIO_LEN 0x00020000ULL
-#define MIC_X100_SBOX_BASE_ADDRESS 0x00010000ULL
-
-#define MIC_X100_SBOX_SPAD0 0x0000AB20
-#define MIC_X100_SBOX_SDBIC0 0x0000CC90
-#define MIC_X100_SBOX_SDBIC0_DBREQ_BIT 0x80000000
-#define MIC_X100_SBOX_RDMASR0	0x0000B180
-
-#define MIC_X100_MAX_DOORBELL_IDX 8
-
-#define MIC_X100_NUM_SBOX_IRQ 8
-#define MIC_X100_NUM_RDMASR_IRQ 8
-#define MIC_X100_SBOX_IRQ_BASE 0
-#define MIC_X100_RDMASR_IRQ_BASE 17
-
-#define MIC_X100_IRQ_BASE 26
-
-#endif
diff --git a/drivers/misc/mic/common/mic_dev.h b/drivers/misc/mic/common/mic_dev.h
deleted file mode 100644
index 92999c2..0000000
--- a/drivers/misc/mic/common/mic_dev.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC driver.
- *
- */
-#ifndef __MIC_DEV_H__
-#define __MIC_DEV_H__
-
-/**
- * struct mic_mw - MIC memory window
- *
- * @pa: Base physical address.
- * @va: Base ioremap'd virtual address.
- * @len: Size of the memory window.
- */
-struct mic_mw {
-	phys_addr_t pa;
-	void __iomem *va;
-	resource_size_t len;
-};
-
-/*
- * Scratch pad register offsets used by the host to communicate
- * device page DMA address to the card.
- */
-#define MIC_DPLO_SPAD 14
-#define MIC_DPHI_SPAD 15
-
-/*
- * These values are supposed to be in the config_change field of the
- * device page when the host sends a config change interrupt to the card.
- */
-#define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1
-#define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2
-
-#endif
diff --git a/drivers/misc/mic/host/Makefile b/drivers/misc/mic/host/Makefile
deleted file mode 100644
index c2197f9..0000000
--- a/drivers/misc/mic/host/Makefile
+++ /dev/null
@@ -1,14 +0,0 @@
-#
-# Makefile - Intel MIC Linux driver.
-# Copyright(c) 2013, Intel Corporation.
-#
-obj-$(CONFIG_INTEL_MIC_HOST) += mic_host.o
-mic_host-objs := mic_main.o
-mic_host-objs += mic_x100.o
-mic_host-objs += mic_sysfs.o
-mic_host-objs += mic_smpt.o
-mic_host-objs += mic_intr.o
-mic_host-objs += mic_boot.o
-mic_host-objs += mic_debugfs.o
-mic_host-objs += mic_fops.o
-mic_host-objs += mic_virtio.o
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
deleted file mode 100644
index b75c6b5..0000000
--- a/drivers/misc/mic/host/mic_boot.c
+++ /dev/null
@@ -1,300 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/delay.h>
-#include <linux/firmware.h>
-#include <linux/pci.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_smpt.h"
-#include "mic_virtio.h"
-
-/**
- * mic_reset - Reset the MIC device.
- * @mdev: pointer to mic_device instance
- */
-static void mic_reset(struct mic_device *mdev)
-{
-	int i;
-
-#define MIC_RESET_TO (45)
-
-	reinit_completion(&mdev->reset_wait);
-	mdev->ops->reset_fw_ready(mdev);
-	mdev->ops->reset(mdev);
-
-	for (i = 0; i < MIC_RESET_TO; i++) {
-		if (mdev->ops->is_fw_ready(mdev))
-			goto done;
-		/*
-		 * Resets typically take 10s of seconds to complete.
-		 * Since an MMIO read is required to check if the
-		 * firmware is ready or not, a 1 second delay works nicely.
-		 */
-		msleep(1000);
-	}
-	mic_set_state(mdev, MIC_RESET_FAILED);
-done:
-	complete_all(&mdev->reset_wait);
-}
-
-/* Initialize the MIC bootparams */
-void mic_bootparam_init(struct mic_device *mdev)
-{
-	struct mic_bootparam *bootparam = mdev->dp;
-
-	bootparam->magic = cpu_to_le32(MIC_MAGIC);
-	bootparam->c2h_shutdown_db = mdev->shutdown_db;
-	bootparam->h2c_shutdown_db = -1;
-	bootparam->h2c_config_db = -1;
-	bootparam->shutdown_status = 0;
-	bootparam->shutdown_card = 0;
-}
-
-/**
- * mic_start - Start the MIC.
- * @mdev: pointer to mic_device instance
- * @buf: buffer containing boot string including firmware/ramdisk path.
- *
- * This function prepares an MIC for boot and initiates boot.
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-int mic_start(struct mic_device *mdev, const char *buf)
-{
-	int rc;
-	mutex_lock(&mdev->mic_mutex);
-retry:
-	if (MIC_OFFLINE != mdev->state) {
-		rc = -EINVAL;
-		goto unlock_ret;
-	}
-	if (!mdev->ops->is_fw_ready(mdev)) {
-		mic_reset(mdev);
-		/*
-		 * The state will either be MIC_OFFLINE if the reset succeeded
-		 * or MIC_RESET_FAILED if the firmware reset failed.
-		 */
-		goto retry;
-	}
-	rc = mdev->ops->load_mic_fw(mdev, buf);
-	if (rc)
-		goto unlock_ret;
-	mic_smpt_restore(mdev);
-	mic_intr_restore(mdev);
-	mdev->intr_ops->enable_interrupts(mdev);
-	mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr);
-	mdev->ops->write_spad(mdev, MIC_DPHI_SPAD, mdev->dp_dma_addr >> 32);
-	mdev->ops->send_firmware_intr(mdev);
-	mic_set_state(mdev, MIC_ONLINE);
-unlock_ret:
-	mutex_unlock(&mdev->mic_mutex);
-	return rc;
-}
-
-/**
- * mic_stop - Prepare the MIC for reset and trigger reset.
- * @mdev: pointer to mic_device instance
- * @force: force a MIC to reset even if it is already offline.
- *
- * RETURNS: None.
- */
-void mic_stop(struct mic_device *mdev, bool force)
-{
-	mutex_lock(&mdev->mic_mutex);
-	if (MIC_OFFLINE != mdev->state || force) {
-		mic_virtio_reset_devices(mdev);
-		mic_bootparam_init(mdev);
-		mic_reset(mdev);
-		if (MIC_RESET_FAILED == mdev->state)
-			goto unlock;
-		mic_set_shutdown_status(mdev, MIC_NOP);
-		if (MIC_SUSPENDED != mdev->state)
-			mic_set_state(mdev, MIC_OFFLINE);
-	}
-unlock:
-	mutex_unlock(&mdev->mic_mutex);
-}
-
-/**
- * mic_shutdown - Initiate MIC shutdown.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: None.
- */
-void mic_shutdown(struct mic_device *mdev)
-{
-	struct mic_bootparam *bootparam = mdev->dp;
-	s8 db = bootparam->h2c_shutdown_db;
-
-	mutex_lock(&mdev->mic_mutex);
-	if (MIC_ONLINE == mdev->state && db != -1) {
-		bootparam->shutdown_card = 1;
-		mdev->ops->send_intr(mdev, db);
-		mic_set_state(mdev, MIC_SHUTTING_DOWN);
-	}
-	mutex_unlock(&mdev->mic_mutex);
-}
-
-/**
- * mic_shutdown_work - Handle shutdown interrupt from MIC.
- * @work: The work structure.
- *
- * This work is scheduled whenever the host has received a shutdown
- * interrupt from the MIC.
- */
-void mic_shutdown_work(struct work_struct *work)
-{
-	struct mic_device *mdev = container_of(work, struct mic_device,
-			shutdown_work);
-	struct mic_bootparam *bootparam = mdev->dp;
-
-	mutex_lock(&mdev->mic_mutex);
-	mic_set_shutdown_status(mdev, bootparam->shutdown_status);
-	bootparam->shutdown_status = 0;
-
-	/*
-	 * if state is MIC_SUSPENDED, OSPM suspend is in progress. We do not
-	 * change the state here so as to prevent users from booting the card
-	 * during and after the suspend operation.
-	 */
-	if (MIC_SHUTTING_DOWN != mdev->state &&
-	    MIC_SUSPENDED != mdev->state)
-		mic_set_state(mdev, MIC_SHUTTING_DOWN);
-	mutex_unlock(&mdev->mic_mutex);
-}
-
-/**
- * mic_reset_trigger_work - Trigger MIC reset.
- * @work: The work structure.
- *
- * This work is scheduled whenever the host wants to reset the MIC.
- */
-void mic_reset_trigger_work(struct work_struct *work)
-{
-	struct mic_device *mdev = container_of(work, struct mic_device,
-			reset_trigger_work);
-
-	mic_stop(mdev, false);
-}
-
-/**
- * mic_complete_resume - Complete MIC Resume after an OSPM suspend/hibernate
- * event.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: None.
- */
-void mic_complete_resume(struct mic_device *mdev)
-{
-	if (mdev->state != MIC_SUSPENDED) {
-		dev_warn(mdev->sdev->parent, "state %d should be %d\n",
-			 mdev->state, MIC_SUSPENDED);
-		return;
-	}
-
-	/* Make sure firmware is ready */
-	if (!mdev->ops->is_fw_ready(mdev))
-		mic_stop(mdev, true);
-
-	mutex_lock(&mdev->mic_mutex);
-	mic_set_state(mdev, MIC_OFFLINE);
-	mutex_unlock(&mdev->mic_mutex);
-}
-
-/**
- * mic_prepare_suspend - Handle suspend notification for the MIC device.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: None.
- */
-void mic_prepare_suspend(struct mic_device *mdev)
-{
-	int rc;
-
-#define MIC_SUSPEND_TIMEOUT (60 * HZ)
-
-	mutex_lock(&mdev->mic_mutex);
-	switch (mdev->state) {
-	case MIC_OFFLINE:
-		/*
-		 * Card is already offline. Set state to MIC_SUSPENDED
-		 * to prevent users from booting the card.
-		 */
-		mic_set_state(mdev, MIC_SUSPENDED);
-		mutex_unlock(&mdev->mic_mutex);
-		break;
-	case MIC_ONLINE:
-		/*
-		 * Card is online. Set state to MIC_SUSPENDING and notify
-		 * MIC user space daemon which will issue card
-		 * shutdown and reset.
-		 */
-		mic_set_state(mdev, MIC_SUSPENDING);
-		mutex_unlock(&mdev->mic_mutex);
-		rc = wait_for_completion_timeout(&mdev->reset_wait,
-						MIC_SUSPEND_TIMEOUT);
-		/* Force reset the card if the shutdown completion timed out */
-		if (!rc) {
-			mutex_lock(&mdev->mic_mutex);
-			mic_set_state(mdev, MIC_SUSPENDED);
-			mutex_unlock(&mdev->mic_mutex);
-			mic_stop(mdev, true);
-		}
-		break;
-	case MIC_SHUTTING_DOWN:
-		/*
-		 * Card is shutting down. Set state to MIC_SUSPENDED
-		 * to prevent further boot of the card.
-		 */
-		mic_set_state(mdev, MIC_SUSPENDED);
-		mutex_unlock(&mdev->mic_mutex);
-		rc = wait_for_completion_timeout(&mdev->reset_wait,
-						MIC_SUSPEND_TIMEOUT);
-		/* Force reset the card if the shutdown completion timed out */
-		if (!rc)
-			mic_stop(mdev, true);
-		break;
-	default:
-		mutex_unlock(&mdev->mic_mutex);
-		break;
-	}
-}
-
-/**
- * mic_suspend - Initiate MIC suspend. Suspend merely issues card shutdown.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: None.
- */
-void mic_suspend(struct mic_device *mdev)
-{
-	struct mic_bootparam *bootparam = mdev->dp;
-	s8 db = bootparam->h2c_shutdown_db;
-
-	mutex_lock(&mdev->mic_mutex);
-	if (MIC_SUSPENDING == mdev->state && db != -1) {
-		bootparam->shutdown_card = 1;
-		mdev->ops->send_intr(mdev, db);
-		mic_set_state(mdev, MIC_SUSPENDED);
-	}
-	mutex_unlock(&mdev->mic_mutex);
-}
diff --git a/drivers/misc/mic/host/mic_debugfs.c b/drivers/misc/mic/host/mic_debugfs.c
deleted file mode 100644
index 028ba5d6..0000000
--- a/drivers/misc/mic/host/mic_debugfs.c
+++ /dev/null
@@ -1,491 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/debugfs.h>
-#include <linux/pci.h>
-#include <linux/seq_file.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_smpt.h"
-#include "mic_virtio.h"
-
-/* Debugfs parent dir */
-static struct dentry *mic_dbg;
-
-/**
- * mic_log_buf_show - Display MIC kernel log buffer.
- *
- * log_buf addr/len is read from System.map by user space
- * and populated in sysfs entries.
- */
-static int mic_log_buf_show(struct seq_file *s, void *unused)
-{
-	void __iomem *log_buf_va;
-	int __iomem *log_buf_len_va;
-	struct mic_device *mdev = s->private;
-	void *kva;
-	int size;
-	unsigned long aper_offset;
-
-	if (!mdev || !mdev->log_buf_addr || !mdev->log_buf_len)
-		goto done;
-	/*
-	 * Card kernel will never be relocated and any kernel text/data mapping
-	 * can be translated to phys address by subtracting __START_KERNEL_map.
-	 */
-	aper_offset = (unsigned long)mdev->log_buf_len - __START_KERNEL_map;
-	log_buf_len_va = mdev->aper.va + aper_offset;
-	aper_offset = (unsigned long)mdev->log_buf_addr - __START_KERNEL_map;
-	log_buf_va = mdev->aper.va + aper_offset;
-	size = ioread32(log_buf_len_va);
-
-	kva = kmalloc(size, GFP_KERNEL);
-	if (!kva)
-		goto done;
-	mutex_lock(&mdev->mic_mutex);
-	memcpy_fromio(kva, log_buf_va, size);
-	switch (mdev->state) {
-	case MIC_ONLINE:
-		/* Fall through */
-	case MIC_SHUTTING_DOWN:
-		seq_write(s, kva, size);
-		break;
-	default:
-		break;
-	}
-	mutex_unlock(&mdev->mic_mutex);
-	kfree(kva);
-done:
-	return 0;
-}
-
-static int mic_log_buf_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_log_buf_show, inode->i_private);
-}
-
-static int mic_log_buf_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations log_buf_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_log_buf_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_log_buf_release
-};
-
-static int mic_smpt_show(struct seq_file *s, void *pos)
-{
-	int i;
-	struct mic_device *mdev = s->private;
-	unsigned long flags;
-
-	seq_printf(s, "MIC %-2d |%-10s| %-14s %-10s\n",
-		   mdev->id, "SMPT entry", "SW DMA addr", "RefCount");
-	seq_puts(s, "====================================================\n");
-
-	if (mdev->smpt) {
-		struct mic_smpt_info *smpt_info = mdev->smpt;
-		spin_lock_irqsave(&smpt_info->smpt_lock, flags);
-		for (i = 0; i < smpt_info->info.num_reg; i++) {
-			seq_printf(s, "%9s|%-10d| %-#14llx %-10lld\n",
-				   " ",  i, smpt_info->entry[i].dma_addr,
-				   smpt_info->entry[i].ref_count);
-		}
-		spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
-	}
-	seq_puts(s, "====================================================\n");
-	return 0;
-}
-
-static int mic_smpt_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_smpt_show, inode->i_private);
-}
-
-static int mic_smpt_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations smpt_file_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_smpt_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_smpt_debug_release
-};
-
-static int mic_soft_reset_show(struct seq_file *s, void *pos)
-{
-	struct mic_device *mdev = s->private;
-
-	mic_stop(mdev, true);
-	return 0;
-}
-
-static int mic_soft_reset_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_soft_reset_show, inode->i_private);
-}
-
-static int mic_soft_reset_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations soft_reset_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_soft_reset_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_soft_reset_debug_release
-};
-
-static int mic_post_code_show(struct seq_file *s, void *pos)
-{
-	struct mic_device *mdev = s->private;
-	u32 reg = mdev->ops->get_postcode(mdev);
-
-	seq_printf(s, "%c%c", reg & 0xff, (reg >> 8) & 0xff);
-	return 0;
-}
-
-static int mic_post_code_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_post_code_show, inode->i_private);
-}
-
-static int mic_post_code_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations post_code_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_post_code_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_post_code_debug_release
-};
-
-static int mic_dp_show(struct seq_file *s, void *pos)
-{
-	struct mic_device *mdev = s->private;
-	struct mic_device_desc *d;
-	struct mic_device_ctrl *dc;
-	struct mic_vqconfig *vqconfig;
-	__u32 *features;
-	__u8 *config;
-	struct mic_bootparam *bootparam = mdev->dp;
-	int i, j;
-
-	seq_printf(s, "Bootparam: magic 0x%x\n",
-		   bootparam->magic);
-	seq_printf(s, "Bootparam: h2c_shutdown_db %d\n",
-		   bootparam->h2c_shutdown_db);
-	seq_printf(s, "Bootparam: h2c_config_db %d\n",
-		   bootparam->h2c_config_db);
-	seq_printf(s, "Bootparam: c2h_shutdown_db %d\n",
-		   bootparam->c2h_shutdown_db);
-	seq_printf(s, "Bootparam: shutdown_status %d\n",
-		   bootparam->shutdown_status);
-	seq_printf(s, "Bootparam: shutdown_card %d\n",
-		   bootparam->shutdown_card);
-
-	for (i = sizeof(*bootparam); i < MIC_DP_SIZE;
-	     i += mic_total_desc_size(d)) {
-		d = mdev->dp + i;
-		dc = (void *)d + mic_aligned_desc_size(d);
-
-		/* end of list */
-		if (d->type == 0)
-			break;
-
-		if (d->type == -1)
-			continue;
-
-		seq_printf(s, "Type %d ", d->type);
-		seq_printf(s, "Num VQ %d ", d->num_vq);
-		seq_printf(s, "Feature Len %d\n", d->feature_len);
-		seq_printf(s, "Config Len %d ", d->config_len);
-		seq_printf(s, "Shutdown Status %d\n", d->status);
-
-		for (j = 0; j < d->num_vq; j++) {
-			vqconfig = mic_vq_config(d) + j;
-			seq_printf(s, "vqconfig[%d]: ", j);
-			seq_printf(s, "address 0x%llx ", vqconfig->address);
-			seq_printf(s, "num %d ", vqconfig->num);
-			seq_printf(s, "used address 0x%llx\n",
-				   vqconfig->used_address);
-		}
-
-		features = (__u32 *)mic_vq_features(d);
-		seq_printf(s, "Features: Host 0x%x ", features[0]);
-		seq_printf(s, "Guest 0x%x\n", features[1]);
-
-		config = mic_vq_configspace(d);
-		for (j = 0; j < d->config_len; j++)
-			seq_printf(s, "config[%d]=%d\n", j, config[j]);
-
-		seq_puts(s, "Device control:\n");
-		seq_printf(s, "Config Change %d ", dc->config_change);
-		seq_printf(s, "Vdev reset %d\n", dc->vdev_reset);
-		seq_printf(s, "Guest Ack %d ", dc->guest_ack);
-		seq_printf(s, "Host ack %d\n", dc->host_ack);
-		seq_printf(s, "Used address updated %d ",
-			   dc->used_address_updated);
-		seq_printf(s, "Vdev 0x%llx\n", dc->vdev);
-		seq_printf(s, "c2h doorbell %d ", dc->c2h_vdev_db);
-		seq_printf(s, "h2c doorbell %d\n", dc->h2c_vdev_db);
-	}
-
-	return 0;
-}
-
-static int mic_dp_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_dp_show, inode->i_private);
-}
-
-static int mic_dp_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations dp_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_dp_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_dp_debug_release
-};
-
-static int mic_vdev_info_show(struct seq_file *s, void *unused)
-{
-	struct mic_device *mdev = s->private;
-	struct list_head *pos, *tmp;
-	struct mic_vdev *mvdev;
-	int i, j;
-
-	mutex_lock(&mdev->mic_mutex);
-	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
-		mvdev = list_entry(pos, struct mic_vdev, list);
-		seq_printf(s, "VDEV type %d state %s in %ld out %ld\n",
-			   mvdev->virtio_id,
-			   mic_vdevup(mvdev) ? "UP" : "DOWN",
-			   mvdev->in_bytes,
-			   mvdev->out_bytes);
-		for (i = 0; i < MIC_MAX_VRINGS; i++) {
-			struct vring_desc *desc;
-			struct vring_avail *avail;
-			struct vring_used *used;
-			struct mic_vringh *mvr = &mvdev->mvr[i];
-			struct vringh *vrh = &mvr->vrh;
-			int num = vrh->vring.num;
-			if (!num)
-				continue;
-			desc = vrh->vring.desc;
-			seq_printf(s, "vring i %d avail_idx %d",
-				   i, mvr->vring.info->avail_idx & (num - 1));
-			seq_printf(s, " vring i %d avail_idx %d\n",
-				   i, mvr->vring.info->avail_idx);
-			seq_printf(s, "vrh i %d weak_barriers %d",
-				   i, vrh->weak_barriers);
-			seq_printf(s, " last_avail_idx %d last_used_idx %d",
-				   vrh->last_avail_idx, vrh->last_used_idx);
-			seq_printf(s, " completed %d\n", vrh->completed);
-			for (j = 0; j < num; j++) {
-				seq_printf(s, "desc[%d] addr 0x%llx len %d",
-					   j, desc->addr, desc->len);
-				seq_printf(s, " flags 0x%x next %d\n",
-					   desc->flags, desc->next);
-				desc++;
-			}
-			avail = vrh->vring.avail;
-			seq_printf(s, "avail flags 0x%x idx %d\n",
-				   avail->flags, avail->idx & (num - 1));
-			seq_printf(s, "avail flags 0x%x idx %d\n",
-				   avail->flags, avail->idx);
-			for (j = 0; j < num; j++)
-				seq_printf(s, "avail ring[%d] %d\n",
-					   j, avail->ring[j]);
-			used = vrh->vring.used;
-			seq_printf(s, "used flags 0x%x idx %d\n",
-				   used->flags, used->idx & (num - 1));
-			seq_printf(s, "used flags 0x%x idx %d\n",
-				   used->flags, used->idx);
-			for (j = 0; j < num; j++)
-				seq_printf(s, "used ring[%d] id %d len %d\n",
-					   j, used->ring[j].id,
-					   used->ring[j].len);
-		}
-	}
-	mutex_unlock(&mdev->mic_mutex);
-
-	return 0;
-}
-
-static int mic_vdev_info_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_vdev_info_show, inode->i_private);
-}
-
-static int mic_vdev_info_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations vdev_info_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_vdev_info_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_vdev_info_debug_release
-};
-
-static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
-{
-	struct mic_device *mdev  = s->private;
-	int reg;
-	int i, j;
-	u16 entry;
-	u16 vector;
-	struct pci_dev *pdev = container_of(mdev->sdev->parent,
-		struct pci_dev, dev);
-
-	if (pci_dev_msi_enabled(pdev)) {
-		for (i = 0; i < mdev->irq_info.num_vectors; i++) {
-			if (pdev->msix_enabled) {
-				entry = mdev->irq_info.msix_entries[i].entry;
-				vector = mdev->irq_info.msix_entries[i].vector;
-			} else {
-				entry = 0;
-				vector = pdev->irq;
-			}
-
-			reg = mdev->intr_ops->read_msi_to_src_map(mdev, entry);
-
-			seq_printf(s, "%s %-10d %s %-10d MXAR[%d]: %08X\n",
-				   "IRQ:", vector, "Entry:", entry, i, reg);
-
-			seq_printf(s, "%-10s", "offset:");
-			for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
-				seq_printf(s, "%4d ", j);
-			seq_puts(s, "\n");
-
-
-			seq_printf(s, "%-10s", "count:");
-			for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
-				seq_printf(s, "%4d ",
-					   (mdev->irq_info.mic_msi_map[i] &
-					   BIT(j)) ? 1 : 0);
-			seq_puts(s, "\n\n");
-		}
-	} else {
-		seq_puts(s, "MSI/MSIx interrupts not enabled\n");
-	}
-
-	return 0;
-}
-
-static int mic_msi_irq_info_debug_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, mic_msi_irq_info_show, inode->i_private);
-}
-
-static int
-mic_msi_irq_info_debug_release(struct inode *inode, struct file *file)
-{
-	return single_release(inode, file);
-}
-
-static const struct file_operations msi_irq_info_ops = {
-	.owner   = THIS_MODULE,
-	.open    = mic_msi_irq_info_debug_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = mic_msi_irq_info_debug_release
-};
-
-/**
- * mic_create_debug_dir - Initialize MIC debugfs entries.
- */
-void mic_create_debug_dir(struct mic_device *mdev)
-{
-	if (!mic_dbg)
-		return;
-
-	mdev->dbg_dir = debugfs_create_dir(dev_name(mdev->sdev), mic_dbg);
-	if (!mdev->dbg_dir)
-		return;
-
-	debugfs_create_file("log_buf", 0444, mdev->dbg_dir, mdev, &log_buf_ops);
-
-	debugfs_create_file("smpt", 0444, mdev->dbg_dir, mdev, &smpt_file_ops);
-
-	debugfs_create_file("soft_reset", 0444, mdev->dbg_dir, mdev,
-			    &soft_reset_ops);
-
-	debugfs_create_file("post_code", 0444, mdev->dbg_dir, mdev,
-			    &post_code_ops);
-
-	debugfs_create_file("dp", 0444, mdev->dbg_dir, mdev, &dp_ops);
-
-	debugfs_create_file("vdev_info", 0444, mdev->dbg_dir, mdev,
-			    &vdev_info_ops);
-
-	debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir, mdev,
-			    &msi_irq_info_ops);
-}
-
-/**
- * mic_delete_debug_dir - Uninitialize MIC debugfs entries.
- */
-void mic_delete_debug_dir(struct mic_device *mdev)
-{
-	if (!mdev->dbg_dir)
-		return;
-
-	debugfs_remove_recursive(mdev->dbg_dir);
-}
-
-/**
- * mic_init_debugfs - Initialize global debugfs entry.
- */
-void __init mic_init_debugfs(void)
-{
-	mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
-	if (!mic_dbg)
-		pr_err("can't create debugfs dir\n");
-}
-
-/**
- * mic_exit_debugfs - Uninitialize global debugfs entry
- */
-void mic_exit_debugfs(void)
-{
-	debugfs_remove(mic_dbg);
-}
diff --git a/drivers/misc/mic/host/mic_device.h b/drivers/misc/mic/host/mic_device.h
deleted file mode 100644
index 3574cc3..0000000
--- a/drivers/misc/mic/host/mic_device.h
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#ifndef _MIC_DEVICE_H_
-#define _MIC_DEVICE_H_
-
-#include <linux/cdev.h>
-#include <linux/idr.h>
-#include <linux/notifier.h>
-
-#include "mic_intr.h"
-
-/* The maximum number of MIC devices supported in a single host system. */
-#define MIC_MAX_NUM_DEVS 256
-
-/**
- * enum mic_hw_family - The hardware family to which a device belongs.
- */
-enum mic_hw_family {
-	MIC_FAMILY_X100 = 0,
-	MIC_FAMILY_UNKNOWN
-};
-
-/**
- * enum mic_stepping - MIC stepping ids.
- */
-enum mic_stepping {
-	MIC_A0_STEP = 0x0,
-	MIC_B0_STEP = 0x10,
-	MIC_B1_STEP = 0x11,
-	MIC_C0_STEP = 0x20,
-};
-
-/**
- * struct mic_device -  MIC device information for each card.
- *
- * @mmio: MMIO bar information.
- * @aper: Aperture bar information.
- * @family: The MIC family to which this device belongs.
- * @ops: MIC HW specific operations.
- * @id: The unique device id for this MIC device.
- * @stepping: Stepping ID.
- * @attr_group: Pointer to list of sysfs attribute groups.
- * @sdev: Device for sysfs entries.
- * @mic_mutex: Mutex for synchronizing access to mic_device.
- * @intr_ops: HW specific interrupt operations.
- * @smpt_ops: Hardware specific SMPT operations.
- * @smpt: MIC SMPT information.
- * @intr_info: H/W specific interrupt information.
- * @irq_info: The OS specific irq information
- * @dbg_dir: debugfs directory of this MIC device.
- * @cmdline: Kernel command line.
- * @firmware: Firmware file name.
- * @ramdisk: Ramdisk file name.
- * @bootmode: Boot mode i.e. "linux" or "elf" for flash updates.
- * @bootaddr: MIC boot address.
- * @reset_trigger_work: Work for triggering reset requests.
- * @shutdown_work: Work for handling shutdown interrupts.
- * @state: MIC state.
- * @shutdown_status: MIC status reported by card for shutdown/crashes.
- * @state_sysfs: Sysfs dirent for notifying ring 3 about MIC state changes.
- * @reset_wait: Waitqueue for sleeping while reset completes.
- * @log_buf_addr: Log buffer address for MIC.
- * @log_buf_len: Log buffer length address for MIC.
- * @dp: virtio device page
- * @dp_dma_addr: virtio device page DMA address.
- * @shutdown_db: shutdown doorbell.
- * @shutdown_cookie: shutdown cookie.
- * @cdev: Character device for MIC.
- * @vdev_list: list of virtio devices.
- * @pm_notifier: Handles PM notifications from the OS.
- */
-struct mic_device {
-	struct mic_mw mmio;
-	struct mic_mw aper;
-	enum mic_hw_family family;
-	struct mic_hw_ops *ops;
-	int id;
-	enum mic_stepping stepping;
-	const struct attribute_group **attr_group;
-	struct device *sdev;
-	struct mutex mic_mutex;
-	struct mic_hw_intr_ops *intr_ops;
-	struct mic_smpt_ops *smpt_ops;
-	struct mic_smpt_info *smpt;
-	struct mic_intr_info *intr_info;
-	struct mic_irq_info irq_info;
-	struct dentry *dbg_dir;
-	char *cmdline;
-	char *firmware;
-	char *ramdisk;
-	char *bootmode;
-	u32 bootaddr;
-	struct work_struct reset_trigger_work;
-	struct work_struct shutdown_work;
-	u8 state;
-	u8 shutdown_status;
-	struct sysfs_dirent *state_sysfs;
-	struct completion reset_wait;
-	void *log_buf_addr;
-	int *log_buf_len;
-	void *dp;
-	dma_addr_t dp_dma_addr;
-	int shutdown_db;
-	struct mic_irq *shutdown_cookie;
-	struct cdev cdev;
-	struct list_head vdev_list;
-	struct notifier_block pm_notifier;
-};
-
-/**
- * struct mic_hw_ops - MIC HW specific operations.
- * @aper_bar: Aperture bar resource number.
- * @mmio_bar: MMIO bar resource number.
- * @read_spad: Read from scratch pad register.
- * @write_spad: Write to scratch pad register.
- * @send_intr: Send an interrupt for a particular doorbell on the card.
- * @ack_interrupt: Hardware specific operations to ack the h/w on
- * receipt of an interrupt.
- * @reset: Reset the remote processor.
- * @reset_fw_ready: Reset firmware ready field.
- * @is_fw_ready: Check if firmware is ready for OS download.
- * @send_firmware_intr: Send an interrupt to the card firmware.
- * @load_mic_fw: Load firmware segments required to boot the card
- * into card memory. This includes the kernel, command line, ramdisk etc.
- * @get_postcode: Get post code status from firmware.
- */
-struct mic_hw_ops {
-	u8 aper_bar;
-	u8 mmio_bar;
-	u32 (*read_spad)(struct mic_device *mdev, unsigned int idx);
-	void (*write_spad)(struct mic_device *mdev, unsigned int idx, u32 val);
-	void (*send_intr)(struct mic_device *mdev, int doorbell);
-	u32 (*ack_interrupt)(struct mic_device *mdev);
-	void (*reset)(struct mic_device *mdev);
-	void (*reset_fw_ready)(struct mic_device *mdev);
-	bool (*is_fw_ready)(struct mic_device *mdev);
-	void (*send_firmware_intr)(struct mic_device *mdev);
-	int (*load_mic_fw)(struct mic_device *mdev, const char *buf);
-	u32 (*get_postcode)(struct mic_device *mdev);
-};
-
-/**
- * mic_mmio_read - read from an MMIO register.
- * @mw: MMIO register base virtual address.
- * @offset: register offset.
- *
- * RETURNS: register value.
- */
-static inline u32 mic_mmio_read(struct mic_mw *mw, u32 offset)
-{
-	return ioread32(mw->va + offset);
-}
-
-/**
- * mic_mmio_write - write to an MMIO register.
- * @mw: MMIO register base virtual address.
- * @val: the data value to put into the register
- * @offset: register offset.
- *
- * RETURNS: none.
- */
-static inline void
-mic_mmio_write(struct mic_mw *mw, u32 val, u32 offset)
-{
-	iowrite32(val, mw->va + offset);
-}
-
-void mic_sysfs_init(struct mic_device *mdev);
-int mic_start(struct mic_device *mdev, const char *buf);
-void mic_stop(struct mic_device *mdev, bool force);
-void mic_shutdown(struct mic_device *mdev);
-void mic_reset_delayed_work(struct work_struct *work);
-void mic_reset_trigger_work(struct work_struct *work);
-void mic_shutdown_work(struct work_struct *work);
-void mic_bootparam_init(struct mic_device *mdev);
-void mic_set_state(struct mic_device *mdev, u8 state);
-void mic_set_shutdown_status(struct mic_device *mdev, u8 status);
-void mic_create_debug_dir(struct mic_device *dev);
-void mic_delete_debug_dir(struct mic_device *dev);
-void __init mic_init_debugfs(void);
-void mic_exit_debugfs(void);
-void mic_prepare_suspend(struct mic_device *mdev);
-void mic_complete_resume(struct mic_device *mdev);
-void mic_suspend(struct mic_device *mdev);
-#endif
diff --git a/drivers/misc/mic/host/mic_fops.c b/drivers/misc/mic/host/mic_fops.c
deleted file mode 100644
index 85776d7..0000000
--- a/drivers/misc/mic/host/mic_fops.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/poll.h>
-#include <linux/pci.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_fops.h"
-#include "mic_virtio.h"
-
-int mic_open(struct inode *inode, struct file *f)
-{
-	struct mic_vdev *mvdev;
-	struct mic_device *mdev = container_of(inode->i_cdev,
-		struct mic_device, cdev);
-
-	mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL);
-	if (!mvdev)
-		return -ENOMEM;
-
-	init_waitqueue_head(&mvdev->waitq);
-	INIT_LIST_HEAD(&mvdev->list);
-	mvdev->mdev = mdev;
-	mvdev->virtio_id = -1;
-
-	f->private_data = mvdev;
-	return 0;
-}
-
-int mic_release(struct inode *inode, struct file *f)
-{
-	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
-
-	if (-1 != mvdev->virtio_id)
-		mic_virtio_del_device(mvdev);
-	f->private_data = NULL;
-	kfree(mvdev);
-	return 0;
-}
-
-long mic_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
-{
-	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
-	void __user *argp = (void __user *)arg;
-	int ret;
-
-	switch (cmd) {
-	case MIC_VIRTIO_ADD_DEVICE:
-	{
-		ret = mic_virtio_add_device(mvdev, argp);
-		if (ret < 0) {
-			dev_err(mic_dev(mvdev),
-				"%s %d errno ret %d\n",
-				__func__, __LINE__, ret);
-			return ret;
-		}
-		break;
-	}
-	case MIC_VIRTIO_COPY_DESC:
-	{
-		struct mic_copy_desc copy;
-
-		ret = mic_vdev_inited(mvdev);
-		if (ret)
-			return ret;
-
-		if (copy_from_user(&copy, argp, sizeof(copy)))
-			return -EFAULT;
-
-		dev_dbg(mic_dev(mvdev),
-			"%s %d === iovcnt 0x%x vr_idx 0x%x update_used %d\n",
-			__func__, __LINE__, copy.iovcnt, copy.vr_idx,
-			copy.update_used);
-
-		ret = mic_virtio_copy_desc(mvdev, &copy);
-		if (ret < 0) {
-			dev_err(mic_dev(mvdev),
-				"%s %d errno ret %d\n",
-				__func__, __LINE__, ret);
-			return ret;
-		}
-		if (copy_to_user(
-			&((struct mic_copy_desc __user *)argp)->out_len,
-			&copy.out_len, sizeof(copy.out_len))) {
-			dev_err(mic_dev(mvdev), "%s %d errno ret %d\n",
-				__func__, __LINE__, -EFAULT);
-			return -EFAULT;
-		}
-		break;
-	}
-	case MIC_VIRTIO_CONFIG_CHANGE:
-	{
-		ret = mic_vdev_inited(mvdev);
-		if (ret)
-			return ret;
-
-		ret = mic_virtio_config_change(mvdev, argp);
-		if (ret < 0) {
-			dev_err(mic_dev(mvdev),
-				"%s %d errno ret %d\n",
-				__func__, __LINE__, ret);
-			return ret;
-		}
-		break;
-	}
-	default:
-		return -ENOIOCTLCMD;
-	};
-	return 0;
-}
-
-/*
- * We return POLLIN | POLLOUT from poll when new buffers are enqueued, and
- * not when previously enqueued buffers may be available. This means that
- * in the card->host (TX) path, when userspace is unblocked by poll it
- * must drain all available descriptors or it can stall.
- */
-unsigned int mic_poll(struct file *f, poll_table *wait)
-{
-	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
-	int mask = 0;
-
-	poll_wait(f, &mvdev->waitq, wait);
-
-	if (mic_vdev_inited(mvdev)) {
-		mask = POLLERR;
-	} else if (mvdev->poll_wake) {
-		mvdev->poll_wake = 0;
-		mask = POLLIN | POLLOUT;
-	}
-
-	return mask;
-}
-
-static inline int
-mic_query_offset(struct mic_vdev *mvdev, unsigned long offset,
-		 unsigned long *size, unsigned long *pa)
-{
-	struct mic_device *mdev = mvdev->mdev;
-	unsigned long start = MIC_DP_SIZE;
-	int i;
-
-	/*
-	 * MMAP interface is as follows:
-	 * offset				region
-	 * 0x0					virtio device_page
-	 * 0x1000				first vring
-	 * 0x1000 + size of 1st vring		second vring
-	 * ....
-	 */
-	if (!offset) {
-		*pa = virt_to_phys(mdev->dp);
-		*size = MIC_DP_SIZE;
-		return 0;
-	}
-
-	for (i = 0; i < mvdev->dd->num_vq; i++) {
-		struct mic_vringh *mvr = &mvdev->mvr[i];
-		if (offset == start) {
-			*pa = virt_to_phys(mvr->vring.va);
-			*size = mvr->vring.len;
-			return 0;
-		}
-		start += mvr->vring.len;
-	}
-	return -1;
-}
-
-/*
- * Maps the device page and virtio rings to user space for readonly access.
- */
-int
-mic_mmap(struct file *f, struct vm_area_struct *vma)
-{
-	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
-	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
-	unsigned long pa, size = vma->vm_end - vma->vm_start, size_rem = size;
-	int i, err;
-
-	err = mic_vdev_inited(mvdev);
-	if (err)
-		return err;
-
-	if (vma->vm_flags & VM_WRITE)
-		return -EACCES;
-
-	while (size_rem) {
-		i = mic_query_offset(mvdev, offset, &size, &pa);
-		if (i < 0)
-			return -EINVAL;
-		err = remap_pfn_range(vma, vma->vm_start + offset,
-			pa >> PAGE_SHIFT, size, vma->vm_page_prot);
-		if (err)
-			return err;
-		dev_dbg(mic_dev(mvdev),
-			"%s %d type %d size 0x%lx off 0x%lx pa 0x%lx vma 0x%lx\n",
-			__func__, __LINE__, mvdev->virtio_id, size, offset,
-			pa, vma->vm_start + offset);
-		size_rem -= size;
-		offset += size;
-	}
-	return 0;
-}
diff --git a/drivers/misc/mic/host/mic_fops.h b/drivers/misc/mic/host/mic_fops.h
deleted file mode 100644
index dc3893d..0000000
--- a/drivers/misc/mic/host/mic_fops.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#ifndef _MIC_FOPS_H_
-#define _MIC_FOPS_H_
-
-int mic_open(struct inode *inode, struct file *filp);
-int mic_release(struct inode *inode, struct file *filp);
-ssize_t mic_read(struct file *filp, char __user *buf,
-			size_t count, loff_t *pos);
-long mic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
-int mic_mmap(struct file *f, struct vm_area_struct *vma);
-unsigned int mic_poll(struct file *f, poll_table *wait);
-
-#endif
diff --git a/drivers/misc/mic/host/mic_intr.c b/drivers/misc/mic/host/mic_intr.c
deleted file mode 100644
index f9c29bc..0000000
--- a/drivers/misc/mic/host/mic_intr.c
+++ /dev/null
@@ -1,630 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-
-/*
- * mic_invoke_callback - Invoke callback functions registered for
- * the corresponding source id.
- *
- * @mdev: pointer to the mic_device instance
- * @idx: The interrupt source id.
- *
- * Returns none.
- */
-static inline void mic_invoke_callback(struct mic_device *mdev, int idx)
-{
-	struct mic_intr_cb *intr_cb;
-	struct pci_dev *pdev = container_of(mdev->sdev->parent,
-		struct pci_dev, dev);
-
-	spin_lock(&mdev->irq_info.mic_intr_lock);
-	list_for_each_entry(intr_cb, &mdev->irq_info.cb_list[idx], list)
-		if (intr_cb->func)
-			intr_cb->func(pdev->irq, intr_cb->data);
-	spin_unlock(&mdev->irq_info.mic_intr_lock);
-}
-
-/**
- * mic_interrupt - Generic interrupt handler for
- * MSI and INTx based interrupts.
- */
-static irqreturn_t mic_interrupt(int irq, void *dev)
-{
-	struct mic_device *mdev = dev;
-	struct mic_intr_info *info = mdev->intr_info;
-	u32 mask;
-	int i;
-
-	mask = mdev->ops->ack_interrupt(mdev);
-	if (!mask)
-		return IRQ_NONE;
-
-	for (i = info->intr_start_idx[MIC_INTR_DB];
-			i < info->intr_len[MIC_INTR_DB]; i++)
-		if (mask & BIT(i))
-			mic_invoke_callback(mdev, i);
-
-	return IRQ_HANDLED;
-}
-
-/* Return the interrupt offset from the index. Index is 0 based. */
-static u16 mic_map_src_to_offset(struct mic_device *mdev,
-		int intr_src, enum mic_intr_type type)
-{
-	if (type >= MIC_NUM_INTR_TYPES)
-		return MIC_NUM_OFFSETS;
-	if (intr_src >= mdev->intr_info->intr_len[type])
-		return MIC_NUM_OFFSETS;
-
-	return mdev->intr_info->intr_start_idx[type] + intr_src;
-}
-
-/* Return next available msix_entry. */
-static struct msix_entry *mic_get_available_vector(struct mic_device *mdev)
-{
-	int i;
-	struct mic_irq_info *info = &mdev->irq_info;
-
-	for (i = 0; i < info->num_vectors; i++)
-		if (!info->mic_msi_map[i])
-			return &info->msix_entries[i];
-	return NULL;
-}
-
-/**
- * mic_register_intr_callback - Register a callback handler for the
- * given source id.
- *
- * @mdev: pointer to the mic_device instance
- * @idx: The source id to be registered.
- * @func: The function to be called when the source id receives
- * the interrupt.
- * @data: Private data of the requester.
- * Return the callback structure that was registered or an
- * appropriate error on failure.
- */
-static struct mic_intr_cb *mic_register_intr_callback(struct mic_device *mdev,
-			u8 idx, irqreturn_t (*func) (int irq, void *dev),
-			void *data)
-{
-	struct mic_intr_cb *intr_cb;
-	unsigned long flags;
-	int rc;
-	intr_cb = kmalloc(sizeof(*intr_cb), GFP_KERNEL);
-
-	if (!intr_cb)
-		return ERR_PTR(-ENOMEM);
-
-	intr_cb->func = func;
-	intr_cb->data = data;
-	intr_cb->cb_id = ida_simple_get(&mdev->irq_info.cb_ida,
-		0, 0, GFP_KERNEL);
-	if (intr_cb->cb_id < 0) {
-		rc = intr_cb->cb_id;
-		goto ida_fail;
-	}
-
-	spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags);
-	list_add_tail(&intr_cb->list, &mdev->irq_info.cb_list[idx]);
-	spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags);
-
-	return intr_cb;
-ida_fail:
-	kfree(intr_cb);
-	return ERR_PTR(rc);
-}
-
-/**
- * mic_unregister_intr_callback - Unregister the callback handler
- * identified by its callback id.
- *
- * @mdev: pointer to the mic_device instance
- * @idx: The callback structure id to be unregistered.
- * Return the source id that was unregistered or MIC_NUM_OFFSETS if no
- * such callback handler was found.
- */
-static u8 mic_unregister_intr_callback(struct mic_device *mdev, u32 idx)
-{
-	struct list_head *pos, *tmp;
-	struct mic_intr_cb *intr_cb;
-	unsigned long flags;
-	int i;
-
-	for (i = 0;  i < MIC_NUM_OFFSETS; i++) {
-		spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags);
-		list_for_each_safe(pos, tmp, &mdev->irq_info.cb_list[i]) {
-			intr_cb = list_entry(pos, struct mic_intr_cb, list);
-			if (intr_cb->cb_id == idx) {
-				list_del(pos);
-				ida_simple_remove(&mdev->irq_info.cb_ida,
-						  intr_cb->cb_id);
-				kfree(intr_cb);
-				spin_unlock_irqrestore(
-					&mdev->irq_info.mic_intr_lock, flags);
-				return i;
-			}
-		}
-		spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags);
-	}
-	return MIC_NUM_OFFSETS;
-}
-
-/**
- * mic_setup_msix - Initializes MSIx interrupts.
- *
- * @mdev: pointer to mic_device instance
- *
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-static int mic_setup_msix(struct mic_device *mdev, struct pci_dev *pdev)
-{
-	int rc, i;
-	int entry_size = sizeof(*mdev->irq_info.msix_entries);
-
-	mdev->irq_info.msix_entries = kmalloc_array(MIC_MIN_MSIX,
-						    entry_size, GFP_KERNEL);
-	if (!mdev->irq_info.msix_entries) {
-		rc = -ENOMEM;
-		goto err_nomem1;
-	}
-
-	for (i = 0; i < MIC_MIN_MSIX; i++)
-		mdev->irq_info.msix_entries[i].entry = i;
-
-	rc = pci_enable_msix(pdev, mdev->irq_info.msix_entries,
-		MIC_MIN_MSIX);
-	if (rc) {
-		dev_dbg(&pdev->dev, "Error enabling MSIx. rc = %d\n", rc);
-		goto err_enable_msix;
-	}
-
-	mdev->irq_info.num_vectors = MIC_MIN_MSIX;
-	mdev->irq_info.mic_msi_map = kzalloc((sizeof(u32) *
-		mdev->irq_info.num_vectors), GFP_KERNEL);
-
-	if (!mdev->irq_info.mic_msi_map) {
-		rc = -ENOMEM;
-		goto err_nomem2;
-	}
-
-	dev_dbg(mdev->sdev->parent,
-		"%d MSIx irqs setup\n", mdev->irq_info.num_vectors);
-	return 0;
-err_nomem2:
-	pci_disable_msix(pdev);
-err_enable_msix:
-	kfree(mdev->irq_info.msix_entries);
-err_nomem1:
-	mdev->irq_info.num_vectors = 0;
-	return rc;
-}
-
-/**
- * mic_setup_callbacks - Initialize data structures needed
- * to handle callbacks.
- *
- * @mdev: pointer to mic_device instance
- */
-static int mic_setup_callbacks(struct mic_device *mdev)
-{
-	int i;
-
-	mdev->irq_info.cb_list = kmalloc_array(MIC_NUM_OFFSETS,
-					       sizeof(*mdev->irq_info.cb_list),
-					       GFP_KERNEL);
-	if (!mdev->irq_info.cb_list)
-		return -ENOMEM;
-
-	for (i = 0; i < MIC_NUM_OFFSETS; i++)
-		INIT_LIST_HEAD(&mdev->irq_info.cb_list[i]);
-	ida_init(&mdev->irq_info.cb_ida);
-	spin_lock_init(&mdev->irq_info.mic_intr_lock);
-	return 0;
-}
-
-/**
- * mic_release_callbacks - Uninitialize data structures needed
- * to handle callbacks.
- *
- * @mdev: pointer to mic_device instance
- */
-static void mic_release_callbacks(struct mic_device *mdev)
-{
-	unsigned long flags;
-	struct list_head *pos, *tmp;
-	struct mic_intr_cb *intr_cb;
-	int i;
-
-	for (i = 0; i < MIC_NUM_OFFSETS; i++) {
-		spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags);
-
-		if (list_empty(&mdev->irq_info.cb_list[i])) {
-			spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock,
-					       flags);
-			break;
-		}
-
-		list_for_each_safe(pos, tmp, &mdev->irq_info.cb_list[i]) {
-			intr_cb = list_entry(pos, struct mic_intr_cb, list);
-			list_del(pos);
-			ida_simple_remove(&mdev->irq_info.cb_ida,
-					  intr_cb->cb_id);
-			kfree(intr_cb);
-		}
-		spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags);
-	}
-	ida_destroy(&mdev->irq_info.cb_ida);
-	kfree(mdev->irq_info.cb_list);
-}
-
-/**
- * mic_setup_msi - Initializes MSI interrupts.
- *
- * @mdev: pointer to mic_device instance
- * @pdev: PCI device structure
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-static int mic_setup_msi(struct mic_device *mdev, struct pci_dev *pdev)
-{
-	int rc;
-
-	rc = pci_enable_msi(pdev);
-	if (rc) {
-		dev_dbg(&pdev->dev, "Error enabling MSI. rc = %d\n", rc);
-		return rc;
-	}
-
-	mdev->irq_info.num_vectors = 1;
-	mdev->irq_info.mic_msi_map = kzalloc((sizeof(u32) *
-		mdev->irq_info.num_vectors), GFP_KERNEL);
-
-	if (!mdev->irq_info.mic_msi_map) {
-		rc = -ENOMEM;
-		goto err_nomem1;
-	}
-
-	rc = mic_setup_callbacks(mdev);
-	if (rc) {
-		dev_err(&pdev->dev, "Error setting up callbacks\n");
-		goto err_nomem2;
-	}
-
-	rc = request_irq(pdev->irq, mic_interrupt, 0 , "mic-msi", mdev);
-	if (rc) {
-		dev_err(&pdev->dev, "Error allocating MSI interrupt\n");
-		goto err_irq_req_fail;
-	}
-
-	dev_dbg(&pdev->dev, "%d MSI irqs setup\n", mdev->irq_info.num_vectors);
-	return 0;
-err_irq_req_fail:
-	mic_release_callbacks(mdev);
-err_nomem2:
-	kfree(mdev->irq_info.mic_msi_map);
-err_nomem1:
-	pci_disable_msi(pdev);
-	mdev->irq_info.num_vectors = 0;
-	return rc;
-}
-
-/**
- * mic_setup_intx - Initializes legacy interrupts.
- *
- * @mdev: pointer to mic_device instance
- * @pdev: PCI device structure
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-static int mic_setup_intx(struct mic_device *mdev, struct pci_dev *pdev)
-{
-	int rc;
-
-	pci_msi_off(pdev);
-
-	/* Enable intx */
-	pci_intx(pdev, 1);
-	rc = mic_setup_callbacks(mdev);
-	if (rc) {
-		dev_err(&pdev->dev, "Error setting up callbacks\n");
-		goto err_nomem;
-	}
-
-	rc = request_irq(pdev->irq, mic_interrupt,
-		IRQF_SHARED, "mic-intx", mdev);
-	if (rc)
-		goto err;
-
-	dev_dbg(&pdev->dev, "intx irq setup\n");
-	return 0;
-err:
-	mic_release_callbacks(mdev);
-err_nomem:
-	return rc;
-}
-
-/**
- * mic_next_db - Retrieve the next doorbell interrupt source id.
- * The id is picked sequentially from the available pool of
- * doorlbell ids.
- *
- * @mdev: pointer to the mic_device instance.
- *
- * Returns the next doorbell interrupt source.
- */
-int mic_next_db(struct mic_device *mdev)
-{
-	int next_db;
-
-	next_db = mdev->irq_info.next_avail_src %
-		mdev->intr_info->intr_len[MIC_INTR_DB];
-	mdev->irq_info.next_avail_src++;
-	return next_db;
-}
-
-#define COOKIE_ID_SHIFT 16
-#define GET_ENTRY(cookie) ((cookie) & 0xFFFF)
-#define GET_OFFSET(cookie) ((cookie) >> COOKIE_ID_SHIFT)
-#define MK_COOKIE(x, y) ((x) | (y) << COOKIE_ID_SHIFT)
-
-/**
- * mic_request_irq - request an irq. mic_mutex needs
- * to be held before calling this function.
- *
- * @mdev: pointer to mic_device instance
- * @func: The callback function that handles the interrupt.
- * The function needs to call ack_interrupts
- * (mdev->ops->ack_interrupt(mdev)) when handling the interrupts.
- * @name: The ASCII name of the callee requesting the irq.
- * @data: private data that is returned back when calling the
- * function handler.
- * @intr_src: The source id of the requester. Its the doorbell id
- * for Doorbell interrupts and DMA channel id for DMA interrupts.
- * @type: The type of interrupt. Values defined in mic_intr_type
- *
- * returns: The cookie that is transparent to the caller. Passed
- * back when calling mic_free_irq. An appropriate error code
- * is returned on failure. Caller needs to use IS_ERR(return_val)
- * to check for failure and PTR_ERR(return_val) to obtained the
- * error code.
- *
- */
-struct mic_irq *mic_request_irq(struct mic_device *mdev,
-	irqreturn_t (*func)(int irq, void *dev),
-	const char *name, void *data, int intr_src,
-	enum mic_intr_type type)
-{
-	u16 offset;
-	int rc = 0;
-	struct msix_entry *msix = NULL;
-	unsigned long cookie = 0;
-	u16 entry;
-	struct mic_intr_cb *intr_cb;
-	struct pci_dev *pdev = container_of(mdev->sdev->parent,
-		struct pci_dev, dev);
-
-	offset = mic_map_src_to_offset(mdev, intr_src, type);
-	if (offset >= MIC_NUM_OFFSETS) {
-		dev_err(mdev->sdev->parent,
-			"Error mapping index %d to a valid source id.\n",
-			intr_src);
-		rc = -EINVAL;
-		goto err;
-	}
-
-	if (mdev->irq_info.num_vectors > 1) {
-		msix = mic_get_available_vector(mdev);
-		if (!msix) {
-			dev_err(mdev->sdev->parent,
-				"No MSIx vectors available for use.\n");
-			rc = -ENOSPC;
-			goto err;
-		}
-
-		rc = request_irq(msix->vector, func, 0, name, data);
-		if (rc) {
-			dev_dbg(mdev->sdev->parent,
-				"request irq failed rc = %d\n", rc);
-			goto err;
-		}
-		entry = msix->entry;
-		mdev->irq_info.mic_msi_map[entry] |= BIT(offset);
-		mdev->intr_ops->program_msi_to_src_map(mdev,
-				entry, offset, true);
-		cookie = MK_COOKIE(entry, offset);
-		dev_dbg(mdev->sdev->parent, "irq: %d assigned for src: %d\n",
-			msix->vector, intr_src);
-	} else {
-		intr_cb = mic_register_intr_callback(mdev,
-				offset, func, data);
-		if (IS_ERR(intr_cb)) {
-			dev_err(mdev->sdev->parent,
-				"No available callback entries for use\n");
-			rc = PTR_ERR(intr_cb);
-			goto err;
-		}
-
-		entry = 0;
-		if (pci_dev_msi_enabled(pdev)) {
-			mdev->irq_info.mic_msi_map[entry] |= (1 << offset);
-			mdev->intr_ops->program_msi_to_src_map(mdev,
-				entry, offset, true);
-		}
-		cookie = MK_COOKIE(entry, intr_cb->cb_id);
-		dev_dbg(mdev->sdev->parent, "callback %d registered for src: %d\n",
-			intr_cb->cb_id, intr_src);
-	}
-	return (struct mic_irq *)cookie;
-err:
-	return ERR_PTR(rc);
-}
-
-/**
- * mic_free_irq - free irq. mic_mutex
- *  needs to be held before calling this function.
- *
- * @mdev: pointer to mic_device instance
- * @cookie: cookie obtained during a successful call to mic_request_irq
- * @data: private data specified by the calling function during the
- * mic_request_irq
- *
- * returns: none.
- */
-void mic_free_irq(struct mic_device *mdev,
-	struct mic_irq *cookie, void *data)
-{
-	u32 offset;
-	u32 entry;
-	u8 src_id;
-	unsigned int irq;
-	struct pci_dev *pdev = container_of(mdev->sdev->parent,
-		struct pci_dev, dev);
-
-	entry = GET_ENTRY((unsigned long)cookie);
-	offset = GET_OFFSET((unsigned long)cookie);
-	if (mdev->irq_info.num_vectors > 1) {
-		if (entry >= mdev->irq_info.num_vectors) {
-			dev_warn(mdev->sdev->parent,
-				 "entry %d should be < num_irq %d\n",
-				entry, mdev->irq_info.num_vectors);
-			return;
-		}
-		irq = mdev->irq_info.msix_entries[entry].vector;
-		free_irq(irq, data);
-		mdev->irq_info.mic_msi_map[entry] &= ~(BIT(offset));
-		mdev->intr_ops->program_msi_to_src_map(mdev,
-			entry, offset, false);
-
-		dev_dbg(mdev->sdev->parent, "irq: %d freed\n", irq);
-	} else {
-		irq = pdev->irq;
-		src_id = mic_unregister_intr_callback(mdev, offset);
-		if (src_id >= MIC_NUM_OFFSETS) {
-			dev_warn(mdev->sdev->parent, "Error unregistering callback\n");
-			return;
-		}
-		if (pci_dev_msi_enabled(pdev)) {
-			mdev->irq_info.mic_msi_map[entry] &= ~(BIT(src_id));
-			mdev->intr_ops->program_msi_to_src_map(mdev,
-				entry, src_id, false);
-		}
-		dev_dbg(mdev->sdev->parent, "callback %d unregistered for src: %d\n",
-			offset, src_id);
-	}
-}
-
-/**
- * mic_setup_interrupts - Initializes interrupts.
- *
- * @mdev: pointer to mic_device instance
- * @pdev: PCI device structure
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-int mic_setup_interrupts(struct mic_device *mdev, struct pci_dev *pdev)
-{
-	int rc;
-
-	rc = mic_setup_msix(mdev, pdev);
-	if (!rc)
-		goto done;
-
-	rc = mic_setup_msi(mdev, pdev);
-	if (!rc)
-		goto done;
-
-	rc = mic_setup_intx(mdev, pdev);
-	if (rc) {
-		dev_err(mdev->sdev->parent, "no usable interrupts\n");
-		return rc;
-	}
-done:
-	mdev->intr_ops->enable_interrupts(mdev);
-	return 0;
-}
-
-/**
- * mic_free_interrupts - Frees interrupts setup by mic_setup_interrupts
- *
- * @mdev: pointer to mic_device instance
- * @pdev: PCI device structure
- *
- * returns none.
- */
-void mic_free_interrupts(struct mic_device *mdev, struct pci_dev *pdev)
-{
-	int i;
-
-	mdev->intr_ops->disable_interrupts(mdev);
-	if (mdev->irq_info.num_vectors > 1) {
-		for (i = 0; i < mdev->irq_info.num_vectors; i++) {
-			if (mdev->irq_info.mic_msi_map[i])
-				dev_warn(&pdev->dev, "irq %d may still be in use.\n",
-					 mdev->irq_info.msix_entries[i].vector);
-		}
-		kfree(mdev->irq_info.mic_msi_map);
-		kfree(mdev->irq_info.msix_entries);
-		pci_disable_msix(pdev);
-	} else {
-		if (pci_dev_msi_enabled(pdev)) {
-			free_irq(pdev->irq, mdev);
-			kfree(mdev->irq_info.mic_msi_map);
-			pci_disable_msi(pdev);
-		} else {
-			free_irq(pdev->irq, mdev);
-		}
-		mic_release_callbacks(mdev);
-	}
-}
-
-/**
- * mic_intr_restore - Restore MIC interrupt registers.
- *
- * @mdev: pointer to mic_device instance.
- *
- * Restore the interrupt registers to values previously
- * stored in the SW data structures. mic_mutex needs to
- * be held before calling this function.
- *
- * returns None.
- */
-void mic_intr_restore(struct mic_device *mdev)
-{
-	int entry, offset;
-	struct pci_dev *pdev = container_of(mdev->sdev->parent,
-		struct pci_dev, dev);
-
-	if (!pci_dev_msi_enabled(pdev))
-		return;
-
-	for (entry = 0; entry < mdev->irq_info.num_vectors; entry++) {
-		for (offset = 0; offset < MIC_NUM_OFFSETS; offset++) {
-			if (mdev->irq_info.mic_msi_map[entry] & BIT(offset))
-				mdev->intr_ops->program_msi_to_src_map(mdev,
-					entry, offset, true);
-		}
-	}
-}
diff --git a/drivers/misc/mic/host/mic_intr.h b/drivers/misc/mic/host/mic_intr.h
deleted file mode 100644
index 6091aa9..0000000
--- a/drivers/misc/mic/host/mic_intr.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#ifndef _MIC_INTR_H_
-#define _MIC_INTR_H_
-
-/*
- * The minimum number of msix vectors required for normal operation.
- * 3 for virtio network, console and block devices.
- * 1 for card shutdown notifications.
- */
-#define MIC_MIN_MSIX 4
-#define MIC_NUM_OFFSETS 32
-
-/**
- * mic_intr_source - The type of source that will generate
- * the interrupt.The number of types needs to be in sync with
- * MIC_NUM_INTR_TYPES
- *
- * MIC_INTR_DB: The source is a doorbell
- * MIC_INTR_DMA: The source is a DMA channel
- * MIC_INTR_ERR: The source is an error interrupt e.g. SBOX ERR
- * MIC_NUM_INTR_TYPES: Total number of interrupt sources.
- */
-enum mic_intr_type {
-	MIC_INTR_DB = 0,
-	MIC_INTR_DMA,
-	MIC_INTR_ERR,
-	MIC_NUM_INTR_TYPES
-};
-
-/**
- * struct mic_intr_info - Contains h/w specific interrupt sources
- * information.
- *
- * @intr_start_idx: Contains the starting indexes of the
- * interrupt types.
- * @intr_len: Contains the length of the interrupt types.
- */
-struct mic_intr_info {
-	u16 intr_start_idx[MIC_NUM_INTR_TYPES];
-	u16 intr_len[MIC_NUM_INTR_TYPES];
-};
-
-/**
- * struct mic_irq_info - OS specific irq information
- *
- * @next_avail_src: next available doorbell that can be assigned.
- * @msix_entries: msix entries allocated while setting up MSI-x
- * @mic_msi_map: The MSI/MSI-x mapping information.
- * @num_vectors: The number of MSI/MSI-x vectors that have been allocated.
- * @cb_ida: callback ID allocator to track the callbacks registered.
- * @mic_intr_lock: spinlock to protect the interrupt callback list.
- * @cb_list: Array of callback lists one for each source.
- */
-struct mic_irq_info {
-	int next_avail_src;
-	struct msix_entry *msix_entries;
-	u32 *mic_msi_map;
-	u16 num_vectors;
-	struct ida cb_ida;
-	spinlock_t mic_intr_lock;
-	struct list_head *cb_list;
-};
-
-/**
- * struct mic_intr_cb - Interrupt callback structure.
- *
- * @func: The callback function
- * @data: Private data of the requester.
- * @cb_id: The callback id. Identifies this callback.
- * @list: list head pointing to the next callback structure.
- */
-struct mic_intr_cb {
-	irqreturn_t (*func) (int irq, void *data);
-	void *data;
-	int cb_id;
-	struct list_head list;
-};
-
-/**
- * struct mic_irq - opaque pointer used as cookie
- */
-struct mic_irq;
-
-/* Forward declaration */
-struct mic_device;
-
-/**
- * struct mic_hw_intr_ops: MIC HW specific interrupt operations
- * @intr_init: Initialize H/W specific interrupt information.
- * @enable_interrupts: Enable interrupts from the hardware.
- * @disable_interrupts: Disable interrupts from the hardware.
- * @program_msi_to_src_map: Update MSI mapping registers with
- * irq information.
- * @read_msi_to_src_map: Read MSI mapping registers containing
- * irq information.
- */
-struct mic_hw_intr_ops {
-	void (*intr_init)(struct mic_device *mdev);
-	void (*enable_interrupts)(struct mic_device *mdev);
-	void (*disable_interrupts)(struct mic_device *mdev);
-	void (*program_msi_to_src_map) (struct mic_device *mdev,
-			int idx, int intr_src, bool set);
-	u32 (*read_msi_to_src_map) (struct mic_device *mdev,
-			int idx);
-};
-
-int mic_next_db(struct mic_device *mdev);
-struct mic_irq *mic_request_irq(struct mic_device *mdev,
-	irqreturn_t (*func)(int irq, void *data),
-	const char *name, void *data, int intr_src,
-	enum mic_intr_type type);
-
-void mic_free_irq(struct mic_device *mdev,
-		struct mic_irq *cookie, void *data);
-int mic_setup_interrupts(struct mic_device *mdev, struct pci_dev *pdev);
-void mic_free_interrupts(struct mic_device *mdev, struct pci_dev *pdev);
-void mic_intr_restore(struct mic_device *mdev);
-#endif
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c
deleted file mode 100644
index ad838c7..0000000
--- a/drivers/misc/mic/host/mic_main.c
+++ /dev/null
@@ -1,536 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- * Global TODO's across the driver to be added after initial base
- * patches are accepted upstream:
- * 1) Enable DMA support.
- * 2) Enable per vring interrupt support.
- */
-#include <linux/fs.h>
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/poll.h>
-#include <linux/suspend.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_x100.h"
-#include "mic_smpt.h"
-#include "mic_fops.h"
-#include "mic_virtio.h"
-
-static const char mic_driver_name[] = "mic";
-
-static DEFINE_PCI_DEVICE_TABLE(mic_pci_tbl) = {
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2250)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2251)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2252)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2253)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2254)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2255)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2256)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2257)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2258)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2259)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225a)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225b)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225c)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225d)},
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225e)},
-
-	/* required last entry */
-	{ 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, mic_pci_tbl);
-
-/* ID allocator for MIC devices */
-static struct ida g_mic_ida;
-/* Class of MIC devices for sysfs accessibility. */
-static struct class *g_mic_class;
-/* Base device node number for MIC devices */
-static dev_t g_mic_devno;
-
-static const struct file_operations mic_fops = {
-	.open = mic_open,
-	.release = mic_release,
-	.unlocked_ioctl = mic_ioctl,
-	.poll = mic_poll,
-	.mmap = mic_mmap,
-	.owner = THIS_MODULE,
-};
-
-/* Initialize the device page */
-static int mic_dp_init(struct mic_device *mdev)
-{
-	mdev->dp = kzalloc(MIC_DP_SIZE, GFP_KERNEL);
-	if (!mdev->dp) {
-		dev_err(mdev->sdev->parent, "%s %d err %d\n",
-			__func__, __LINE__, -ENOMEM);
-		return -ENOMEM;
-	}
-
-	mdev->dp_dma_addr = mic_map_single(mdev,
-		mdev->dp, MIC_DP_SIZE);
-	if (mic_map_error(mdev->dp_dma_addr)) {
-		kfree(mdev->dp);
-		dev_err(mdev->sdev->parent, "%s %d err %d\n",
-			__func__, __LINE__, -ENOMEM);
-		return -ENOMEM;
-	}
-	mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr);
-	mdev->ops->write_spad(mdev, MIC_DPHI_SPAD, mdev->dp_dma_addr >> 32);
-	return 0;
-}
-
-/* Uninitialize the device page */
-static void mic_dp_uninit(struct mic_device *mdev)
-{
-	mic_unmap_single(mdev, mdev->dp_dma_addr, MIC_DP_SIZE);
-	kfree(mdev->dp);
-}
-
-/**
- * mic_shutdown_db - Shutdown doorbell interrupt handler.
- */
-static irqreturn_t mic_shutdown_db(int irq, void *data)
-{
-	struct mic_device *mdev = data;
-	struct mic_bootparam *bootparam = mdev->dp;
-
-	mdev->ops->ack_interrupt(mdev);
-
-	switch (bootparam->shutdown_status) {
-	case MIC_HALTED:
-	case MIC_POWER_OFF:
-	case MIC_RESTART:
-		/* Fall through */
-	case MIC_CRASHED:
-		schedule_work(&mdev->shutdown_work);
-		break;
-	default:
-		break;
-	};
-	return IRQ_HANDLED;
-}
-
-/**
- * mic_ops_init: Initialize HW specific operation tables.
- *
- * @mdev: pointer to mic_device instance
- *
- * returns none.
- */
-static void mic_ops_init(struct mic_device *mdev)
-{
-	switch (mdev->family) {
-	case MIC_FAMILY_X100:
-		mdev->ops = &mic_x100_ops;
-		mdev->intr_ops = &mic_x100_intr_ops;
-		mdev->smpt_ops = &mic_x100_smpt_ops;
-		break;
-	default:
-		break;
-	}
-}
-
-/**
- * mic_get_family - Determine hardware family to which this MIC belongs.
- *
- * @pdev: The pci device structure
- *
- * returns family.
- */
-static enum mic_hw_family mic_get_family(struct pci_dev *pdev)
-{
-	enum mic_hw_family family;
-
-	switch (pdev->device) {
-	case MIC_X100_PCI_DEVICE_2250:
-	case MIC_X100_PCI_DEVICE_2251:
-	case MIC_X100_PCI_DEVICE_2252:
-	case MIC_X100_PCI_DEVICE_2253:
-	case MIC_X100_PCI_DEVICE_2254:
-	case MIC_X100_PCI_DEVICE_2255:
-	case MIC_X100_PCI_DEVICE_2256:
-	case MIC_X100_PCI_DEVICE_2257:
-	case MIC_X100_PCI_DEVICE_2258:
-	case MIC_X100_PCI_DEVICE_2259:
-	case MIC_X100_PCI_DEVICE_225a:
-	case MIC_X100_PCI_DEVICE_225b:
-	case MIC_X100_PCI_DEVICE_225c:
-	case MIC_X100_PCI_DEVICE_225d:
-	case MIC_X100_PCI_DEVICE_225e:
-		family = MIC_FAMILY_X100;
-		break;
-	default:
-		family = MIC_FAMILY_UNKNOWN;
-		break;
-	}
-	return family;
-}
-
-/**
-* mic_pm_notifier: Notifier callback function that handles
-* PM notifications.
-*
-* @notifier_block: The notifier structure.
-* @pm_event: The event for which the driver was notified.
-* @unused: Meaningless. Always NULL.
-*
-* returns NOTIFY_DONE
-*/
-static int mic_pm_notifier(struct notifier_block *notifier,
-		unsigned long pm_event, void *unused)
-{
-	struct mic_device *mdev = container_of(notifier,
-		struct mic_device, pm_notifier);
-
-	switch (pm_event) {
-	case PM_HIBERNATION_PREPARE:
-		/* Fall through */
-	case PM_SUSPEND_PREPARE:
-		mic_prepare_suspend(mdev);
-		break;
-	case PM_POST_HIBERNATION:
-		/* Fall through */
-	case PM_POST_SUSPEND:
-		/* Fall through */
-	case PM_POST_RESTORE:
-		mic_complete_resume(mdev);
-		break;
-	case PM_RESTORE_PREPARE:
-		break;
-	default:
-		break;
-	}
-	return NOTIFY_DONE;
-}
-
-/**
- * mic_device_init - Allocates and initializes the MIC device structure
- *
- * @mdev: pointer to mic_device instance
- * @pdev: The pci device structure
- *
- * returns none.
- */
-static int
-mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
-{
-	int rc;
-
-	mdev->family = mic_get_family(pdev);
-	mdev->stepping = pdev->revision;
-	mic_ops_init(mdev);
-	mic_sysfs_init(mdev);
-	mutex_init(&mdev->mic_mutex);
-	mdev->irq_info.next_avail_src = 0;
-	INIT_WORK(&mdev->reset_trigger_work, mic_reset_trigger_work);
-	INIT_WORK(&mdev->shutdown_work, mic_shutdown_work);
-	init_completion(&mdev->reset_wait);
-	INIT_LIST_HEAD(&mdev->vdev_list);
-	mdev->pm_notifier.notifier_call = mic_pm_notifier;
-	rc = register_pm_notifier(&mdev->pm_notifier);
-	if (rc) {
-		dev_err(&pdev->dev, "register_pm_notifier failed rc %d\n",
-			rc);
-		goto register_pm_notifier_fail;
-	}
-	return 0;
-register_pm_notifier_fail:
-	flush_work(&mdev->shutdown_work);
-	flush_work(&mdev->reset_trigger_work);
-	return rc;
-}
-
-/**
- * mic_device_uninit - Frees resources allocated during mic_device_init(..)
- *
- * @mdev: pointer to mic_device instance
- *
- * returns none
- */
-static void mic_device_uninit(struct mic_device *mdev)
-{
-	/* The cmdline sysfs entry might have allocated cmdline */
-	kfree(mdev->cmdline);
-	kfree(mdev->firmware);
-	kfree(mdev->ramdisk);
-	kfree(mdev->bootmode);
-	flush_work(&mdev->reset_trigger_work);
-	flush_work(&mdev->shutdown_work);
-	unregister_pm_notifier(&mdev->pm_notifier);
-}
-
-/**
- * mic_probe - Device Initialization Routine
- *
- * @pdev: PCI device structure
- * @ent: entry in mic_pci_tbl
- *
- * returns 0 on success, < 0 on failure.
- */
-static int mic_probe(struct pci_dev *pdev,
-		const struct pci_device_id *ent)
-{
-	int rc;
-	struct mic_device *mdev;
-
-	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
-	if (!mdev) {
-		rc = -ENOMEM;
-		dev_err(&pdev->dev, "mdev kmalloc failed rc %d\n", rc);
-		goto mdev_alloc_fail;
-	}
-	mdev->id = ida_simple_get(&g_mic_ida, 0, MIC_MAX_NUM_DEVS, GFP_KERNEL);
-	if (mdev->id < 0) {
-		rc = mdev->id;
-		dev_err(&pdev->dev, "ida_simple_get failed rc %d\n", rc);
-		goto ida_fail;
-	}
-
-	rc = mic_device_init(mdev, pdev);
-	if (rc) {
-		dev_err(&pdev->dev, "mic_device_init failed rc %d\n", rc);
-		goto device_init_fail;
-	}
-
-	rc = pci_enable_device(pdev);
-	if (rc) {
-		dev_err(&pdev->dev, "failed to enable pci device.\n");
-		goto uninit_device;
-	}
-
-	pci_set_master(pdev);
-
-	rc = pci_request_regions(pdev, mic_driver_name);
-	if (rc) {
-		dev_err(&pdev->dev, "failed to get pci regions.\n");
-		goto disable_device;
-	}
-
-	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
-	if (rc) {
-		dev_err(&pdev->dev, "Cannot set DMA mask\n");
-		goto release_regions;
-	}
-
-	mdev->mmio.pa = pci_resource_start(pdev, mdev->ops->mmio_bar);
-	mdev->mmio.len = pci_resource_len(pdev, mdev->ops->mmio_bar);
-	mdev->mmio.va = pci_ioremap_bar(pdev, mdev->ops->mmio_bar);
-	if (!mdev->mmio.va) {
-		dev_err(&pdev->dev, "Cannot remap MMIO BAR\n");
-		rc = -EIO;
-		goto release_regions;
-	}
-
-	mdev->aper.pa = pci_resource_start(pdev, mdev->ops->aper_bar);
-	mdev->aper.len = pci_resource_len(pdev, mdev->ops->aper_bar);
-	mdev->aper.va = ioremap_wc(mdev->aper.pa, mdev->aper.len);
-	if (!mdev->aper.va) {
-		dev_err(&pdev->dev, "Cannot remap Aperture BAR\n");
-		rc = -EIO;
-		goto unmap_mmio;
-	}
-
-	mdev->intr_ops->intr_init(mdev);
-	rc = mic_setup_interrupts(mdev, pdev);
-	if (rc) {
-		dev_err(&pdev->dev, "mic_setup_interrupts failed %d\n", rc);
-		goto unmap_aper;
-	}
-	rc = mic_smpt_init(mdev);
-	if (rc) {
-		dev_err(&pdev->dev, "smpt_init failed %d\n", rc);
-		goto free_interrupts;
-	}
-
-	pci_set_drvdata(pdev, mdev);
-
-	mdev->sdev = device_create_with_groups(g_mic_class, &pdev->dev,
-		MKDEV(MAJOR(g_mic_devno), mdev->id), NULL,
-		mdev->attr_group, "mic%d", mdev->id);
-	if (IS_ERR(mdev->sdev)) {
-		rc = PTR_ERR(mdev->sdev);
-		dev_err(&pdev->dev,
-			"device_create_with_groups failed rc %d\n", rc);
-		goto smpt_uninit;
-	}
-	mdev->state_sysfs = sysfs_get_dirent(mdev->sdev->kobj.sd, "state");
-	if (!mdev->state_sysfs) {
-		rc = -ENODEV;
-		dev_err(&pdev->dev, "sysfs_get_dirent failed rc %d\n", rc);
-		goto destroy_device;
-	}
-
-	rc = mic_dp_init(mdev);
-	if (rc) {
-		dev_err(&pdev->dev, "mic_dp_init failed rc %d\n", rc);
-		goto sysfs_put;
-	}
-	mutex_lock(&mdev->mic_mutex);
-
-	mdev->shutdown_db = mic_next_db(mdev);
-	mdev->shutdown_cookie = mic_request_irq(mdev, mic_shutdown_db,
-		"shutdown-interrupt", mdev, mdev->shutdown_db, MIC_INTR_DB);
-	if (IS_ERR(mdev->shutdown_cookie)) {
-		rc = PTR_ERR(mdev->shutdown_cookie);
-		mutex_unlock(&mdev->mic_mutex);
-		goto dp_uninit;
-	}
-	mutex_unlock(&mdev->mic_mutex);
-	mic_bootparam_init(mdev);
-
-	mic_create_debug_dir(mdev);
-	cdev_init(&mdev->cdev, &mic_fops);
-	mdev->cdev.owner = THIS_MODULE;
-	rc = cdev_add(&mdev->cdev, MKDEV(MAJOR(g_mic_devno), mdev->id), 1);
-	if (rc) {
-		dev_err(&pdev->dev, "cdev_add err id %d rc %d\n", mdev->id, rc);
-		goto cleanup_debug_dir;
-	}
-	return 0;
-cleanup_debug_dir:
-	mic_delete_debug_dir(mdev);
-	mutex_lock(&mdev->mic_mutex);
-	mic_free_irq(mdev, mdev->shutdown_cookie, mdev);
-	mutex_unlock(&mdev->mic_mutex);
-dp_uninit:
-	mic_dp_uninit(mdev);
-sysfs_put:
-	sysfs_put(mdev->state_sysfs);
-destroy_device:
-	device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id));
-smpt_uninit:
-	mic_smpt_uninit(mdev);
-free_interrupts:
-	mic_free_interrupts(mdev, pdev);
-unmap_aper:
-	iounmap(mdev->aper.va);
-unmap_mmio:
-	iounmap(mdev->mmio.va);
-release_regions:
-	pci_release_regions(pdev);
-disable_device:
-	pci_disable_device(pdev);
-uninit_device:
-	mic_device_uninit(mdev);
-device_init_fail:
-	ida_simple_remove(&g_mic_ida, mdev->id);
-ida_fail:
-	kfree(mdev);
-mdev_alloc_fail:
-	dev_err(&pdev->dev, "Probe failed rc %d\n", rc);
-	return rc;
-}
-
-/**
- * mic_remove - Device Removal Routine
- * mic_remove is called by the PCI subsystem to alert the driver
- * that it should release a PCI device.
- *
- * @pdev: PCI device structure
- */
-static void mic_remove(struct pci_dev *pdev)
-{
-	struct mic_device *mdev;
-
-	mdev = pci_get_drvdata(pdev);
-	if (!mdev)
-		return;
-
-	mic_stop(mdev, false);
-	cdev_del(&mdev->cdev);
-	mic_delete_debug_dir(mdev);
-	mutex_lock(&mdev->mic_mutex);
-	mic_free_irq(mdev, mdev->shutdown_cookie, mdev);
-	mutex_unlock(&mdev->mic_mutex);
-	flush_work(&mdev->shutdown_work);
-	mic_dp_uninit(mdev);
-	sysfs_put(mdev->state_sysfs);
-	device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id));
-	mic_smpt_uninit(mdev);
-	mic_free_interrupts(mdev, pdev);
-	iounmap(mdev->mmio.va);
-	iounmap(mdev->aper.va);
-	mic_device_uninit(mdev);
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-	ida_simple_remove(&g_mic_ida, mdev->id);
-	kfree(mdev);
-}
-static struct pci_driver mic_driver = {
-	.name = mic_driver_name,
-	.id_table = mic_pci_tbl,
-	.probe = mic_probe,
-	.remove = mic_remove
-};
-
-static int __init mic_init(void)
-{
-	int ret;
-
-	ret = alloc_chrdev_region(&g_mic_devno, 0,
-		MIC_MAX_NUM_DEVS, mic_driver_name);
-	if (ret) {
-		pr_err("alloc_chrdev_region failed ret %d\n", ret);
-		goto error;
-	}
-
-	g_mic_class = class_create(THIS_MODULE, mic_driver_name);
-	if (IS_ERR(g_mic_class)) {
-		ret = PTR_ERR(g_mic_class);
-		pr_err("class_create failed ret %d\n", ret);
-		goto cleanup_chrdev;
-	}
-
-	mic_init_debugfs();
-	ida_init(&g_mic_ida);
-	ret = pci_register_driver(&mic_driver);
-	if (ret) {
-		pr_err("pci_register_driver failed ret %d\n", ret);
-		goto cleanup_debugfs;
-	}
-	return ret;
-cleanup_debugfs:
-	mic_exit_debugfs();
-	class_destroy(g_mic_class);
-cleanup_chrdev:
-	unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
-error:
-	return ret;
-}
-
-static void __exit mic_exit(void)
-{
-	pci_unregister_driver(&mic_driver);
-	ida_destroy(&g_mic_ida);
-	mic_exit_debugfs();
-	class_destroy(g_mic_class);
-	unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
-}
-
-module_init(mic_init);
-module_exit(mic_exit);
-
-MODULE_AUTHOR("Intel Corporation");
-MODULE_DESCRIPTION("Intel(R) MIC X100 Host driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/mic/host/mic_smpt.c b/drivers/misc/mic/host/mic_smpt.c
deleted file mode 100644
index fae474c..0000000
--- a/drivers/misc/mic/host/mic_smpt.c
+++ /dev/null
@@ -1,442 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/pci.h>
-
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_smpt.h"
-
-static inline u64 mic_system_page_mask(struct mic_device *mdev)
-{
-	return (1ULL << mdev->smpt->info.page_shift) - 1ULL;
-}
-
-static inline u8 mic_sys_addr_to_smpt(struct mic_device *mdev, dma_addr_t pa)
-{
-	return (pa - mdev->smpt->info.base) >> mdev->smpt->info.page_shift;
-}
-
-static inline u64 mic_smpt_to_pa(struct mic_device *mdev, u8 index)
-{
-	return mdev->smpt->info.base + (index * mdev->smpt->info.page_size);
-}
-
-static inline u64 mic_smpt_offset(struct mic_device *mdev, dma_addr_t pa)
-{
-	return pa & mic_system_page_mask(mdev);
-}
-
-static inline u64 mic_smpt_align_low(struct mic_device *mdev, dma_addr_t pa)
-{
-	return ALIGN(pa - mic_system_page_mask(mdev),
-		mdev->smpt->info.page_size);
-}
-
-static inline u64 mic_smpt_align_high(struct mic_device *mdev, dma_addr_t pa)
-{
-	return ALIGN(pa, mdev->smpt->info.page_size);
-}
-
-/* Total Cumulative system memory accessible by MIC across all SMPT entries */
-static inline u64 mic_max_system_memory(struct mic_device *mdev)
-{
-	return mdev->smpt->info.num_reg * mdev->smpt->info.page_size;
-}
-
-/* Maximum system memory address accessible by MIC */
-static inline u64 mic_max_system_addr(struct mic_device *mdev)
-{
-	return mdev->smpt->info.base + mic_max_system_memory(mdev) - 1ULL;
-}
-
-/* Check if the DMA address is a MIC system memory address */
-static inline bool
-mic_is_system_addr(struct mic_device *mdev, dma_addr_t pa)
-{
-	return pa >= mdev->smpt->info.base && pa <= mic_max_system_addr(mdev);
-}
-
-/* Populate an SMPT entry and update the reference counts. */
-static void mic_add_smpt_entry(int spt, s64 *ref, u64 addr,
-		int entries, struct mic_device *mdev)
-{
-	struct mic_smpt_info *smpt_info = mdev->smpt;
-	int i;
-
-	for (i = spt; i < spt + entries; i++,
-		addr += smpt_info->info.page_size) {
-		if (!smpt_info->entry[i].ref_count &&
-		    (smpt_info->entry[i].dma_addr != addr)) {
-			mdev->smpt_ops->set(mdev, addr, i);
-			smpt_info->entry[i].dma_addr = addr;
-		}
-		smpt_info->entry[i].ref_count += ref[i - spt];
-	}
-}
-
-/*
- * Find an available MIC address in MIC SMPT address space
- * for a given DMA address and size.
- */
-static dma_addr_t mic_smpt_op(struct mic_device *mdev, u64 dma_addr,
-				int entries, s64 *ref, size_t size)
-{
-	int spt;
-	int ae = 0;
-	int i;
-	unsigned long flags;
-	dma_addr_t mic_addr = 0;
-	dma_addr_t addr = dma_addr;
-	struct mic_smpt_info *smpt_info = mdev->smpt;
-
-	spin_lock_irqsave(&smpt_info->smpt_lock, flags);
-
-	/* find existing entries */
-	for (i = 0; i < smpt_info->info.num_reg; i++) {
-		if (smpt_info->entry[i].dma_addr == addr) {
-			ae++;
-			addr += smpt_info->info.page_size;
-		} else if (ae) /* cannot find contiguous entries */
-			goto not_found;
-
-		if (ae == entries)
-			goto found;
-	}
-
-	/* find free entry */
-	for (ae = 0, i = 0; i < smpt_info->info.num_reg; i++) {
-		ae = (smpt_info->entry[i].ref_count == 0) ? ae + 1 : 0;
-		if (ae == entries)
-			goto found;
-	}
-
-not_found:
-	spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
-	return mic_addr;
-
-found:
-	spt = i - entries + 1;
-	mic_addr = mic_smpt_to_pa(mdev, spt);
-	mic_add_smpt_entry(spt, ref, dma_addr, entries, mdev);
-	smpt_info->map_count++;
-	smpt_info->ref_count += (s64)size;
-	spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
-	return mic_addr;
-}
-
-/*
- * Returns number of smpt entries needed for dma_addr to dma_addr + size
- * also returns the reference count array for each of those entries
- * and the starting smpt address
- */
-static int mic_get_smpt_ref_count(struct mic_device *mdev, dma_addr_t dma_addr,
-				size_t size, s64 *ref,  u64 *smpt_start)
-{
-	u64 start =  dma_addr;
-	u64 end = dma_addr + size;
-	int i = 0;
-
-	while (start < end) {
-		ref[i++] = min(mic_smpt_align_high(mdev, start + 1),
-			end) - start;
-		start = mic_smpt_align_high(mdev, start + 1);
-	}
-
-	if (smpt_start)
-		*smpt_start = mic_smpt_align_low(mdev, dma_addr);
-
-	return i;
-}
-
-/*
- * mic_to_dma_addr - Converts a MIC address to a DMA address.
- *
- * @mdev: pointer to mic_device instance.
- * @mic_addr: MIC address.
- *
- * returns a DMA address.
- */
-static dma_addr_t
-mic_to_dma_addr(struct mic_device *mdev, dma_addr_t mic_addr)
-{
-	struct mic_smpt_info *smpt_info = mdev->smpt;
-	int spt;
-	dma_addr_t dma_addr;
-
-	if (!mic_is_system_addr(mdev, mic_addr)) {
-		dev_err(mdev->sdev->parent,
-			"mic_addr is invalid. mic_addr = 0x%llx\n", mic_addr);
-		return -EINVAL;
-	}
-	spt = mic_sys_addr_to_smpt(mdev, mic_addr);
-	dma_addr = smpt_info->entry[spt].dma_addr +
-		mic_smpt_offset(mdev, mic_addr);
-	return dma_addr;
-}
-
-/**
- * mic_map - Maps a DMA address to a MIC physical address.
- *
- * @mdev: pointer to mic_device instance.
- * @dma_addr: DMA address.
- * @size: Size of the region to be mapped.
- *
- * This API converts the DMA address provided to a DMA address understood
- * by MIC. Caller should check for errors by calling mic_map_error(..).
- *
- * returns DMA address as required by MIC.
- */
-dma_addr_t mic_map(struct mic_device *mdev, dma_addr_t dma_addr, size_t size)
-{
-	dma_addr_t mic_addr = 0;
-	int num_entries;
-	s64 *ref;
-	u64 smpt_start;
-
-	if (!size || size > mic_max_system_memory(mdev))
-		return mic_addr;
-
-	ref = kmalloc(mdev->smpt->info.num_reg * sizeof(s64), GFP_KERNEL);
-	if (!ref)
-		return mic_addr;
-
-	num_entries = mic_get_smpt_ref_count(mdev, dma_addr, size,
-		ref, &smpt_start);
-
-	/* Set the smpt table appropriately and get 16G aligned mic address */
-	mic_addr = mic_smpt_op(mdev, smpt_start, num_entries, ref, size);
-
-	kfree(ref);
-
-	/*
-	 * If mic_addr is zero then its an error case
-	 * since mic_addr can never be zero.
-	 * else generate mic_addr by adding the 16G offset in dma_addr
-	 */
-	if (!mic_addr && MIC_FAMILY_X100 == mdev->family) {
-		dev_err(mdev->sdev->parent,
-			"mic_map failed dma_addr 0x%llx size 0x%lx\n",
-			dma_addr, size);
-		return mic_addr;
-	} else {
-		return mic_addr + mic_smpt_offset(mdev, dma_addr);
-	}
-}
-
-/**
- * mic_unmap - Unmaps a MIC physical address.
- *
- * @mdev: pointer to mic_device instance.
- * @mic_addr: MIC physical address.
- * @size: Size of the region to be unmapped.
- *
- * This API unmaps the mappings created by mic_map(..).
- *
- * returns None.
- */
-void mic_unmap(struct mic_device *mdev, dma_addr_t mic_addr, size_t size)
-{
-	struct mic_smpt_info *smpt_info = mdev->smpt;
-	s64 *ref;
-	int num_smpt;
-	int spt;
-	int i;
-	unsigned long flags;
-
-	if (!size)
-		return;
-
-	if (!mic_is_system_addr(mdev, mic_addr)) {
-		dev_err(mdev->sdev->parent,
-			"invalid address: 0x%llx\n", mic_addr);
-		return;
-	}
-
-	spt = mic_sys_addr_to_smpt(mdev, mic_addr);
-	ref = kmalloc(mdev->smpt->info.num_reg * sizeof(s64), GFP_KERNEL);
-	if (!ref)
-		return;
-
-	/* Get number of smpt entries to be mapped, ref count array */
-	num_smpt = mic_get_smpt_ref_count(mdev, mic_addr, size, ref, NULL);
-
-	spin_lock_irqsave(&smpt_info->smpt_lock, flags);
-	smpt_info->unmap_count++;
-	smpt_info->ref_count -= (s64)size;
-
-	for (i = spt; i < spt + num_smpt; i++) {
-		smpt_info->entry[i].ref_count -= ref[i - spt];
-		if (smpt_info->entry[i].ref_count < 0)
-			dev_warn(mdev->sdev->parent,
-				 "ref count for entry %d is negative\n", i);
-	}
-	spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
-	kfree(ref);
-}
-
-/**
- * mic_map_single - Maps a virtual address to a MIC physical address.
- *
- * @mdev: pointer to mic_device instance.
- * @va: Kernel direct mapped virtual address.
- * @size: Size of the region to be mapped.
- *
- * This API calls pci_map_single(..) for the direct mapped virtual address
- * and then converts the DMA address provided to a DMA address understood
- * by MIC. Caller should check for errors by calling mic_map_error(..).
- *
- * returns DMA address as required by MIC.
- */
-dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size)
-{
-	dma_addr_t mic_addr = 0;
-	struct pci_dev *pdev = container_of(mdev->sdev->parent,
-		struct pci_dev, dev);
-	dma_addr_t dma_addr =
-		pci_map_single(pdev, va, size, PCI_DMA_BIDIRECTIONAL);
-
-	if (!pci_dma_mapping_error(pdev, dma_addr)) {
-		mic_addr = mic_map(mdev, dma_addr, size);
-		if (!mic_addr) {
-			dev_err(mdev->sdev->parent,
-				"mic_map failed dma_addr 0x%llx size 0x%lx\n",
-				dma_addr, size);
-			pci_unmap_single(pdev, dma_addr,
-					 size, PCI_DMA_BIDIRECTIONAL);
-		}
-	}
-	return mic_addr;
-}
-
-/**
- * mic_unmap_single - Unmaps a MIC physical address.
- *
- * @mdev: pointer to mic_device instance.
- * @mic_addr: MIC physical address.
- * @size: Size of the region to be unmapped.
- *
- * This API unmaps the mappings created by mic_map_single(..).
- *
- * returns None.
- */
-void
-mic_unmap_single(struct mic_device *mdev, dma_addr_t mic_addr, size_t size)
-{
-	struct pci_dev *pdev = container_of(mdev->sdev->parent,
-		struct pci_dev, dev);
-	dma_addr_t dma_addr = mic_to_dma_addr(mdev, mic_addr);
-	mic_unmap(mdev, mic_addr, size);
-	pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL);
-}
-
-/**
- * mic_smpt_init - Initialize MIC System Memory Page Tables.
- *
- * @mdev: pointer to mic_device instance.
- *
- * returns 0 for success and -errno for error.
- */
-int mic_smpt_init(struct mic_device *mdev)
-{
-	int i, err = 0;
-	dma_addr_t dma_addr;
-	struct mic_smpt_info *smpt_info;
-
-	mdev->smpt = kmalloc(sizeof(*mdev->smpt), GFP_KERNEL);
-	if (!mdev->smpt)
-		return -ENOMEM;
-
-	smpt_info = mdev->smpt;
-	mdev->smpt_ops->init(mdev);
-	smpt_info->entry = kmalloc_array(smpt_info->info.num_reg,
-					 sizeof(*smpt_info->entry), GFP_KERNEL);
-	if (!smpt_info->entry) {
-		err = -ENOMEM;
-		goto free_smpt;
-	}
-	spin_lock_init(&smpt_info->smpt_lock);
-	for (i = 0; i < smpt_info->info.num_reg; i++) {
-		dma_addr = i * smpt_info->info.page_size;
-		smpt_info->entry[i].dma_addr = dma_addr;
-		smpt_info->entry[i].ref_count = 0;
-		mdev->smpt_ops->set(mdev, dma_addr, i);
-	}
-	smpt_info->ref_count = 0;
-	smpt_info->map_count = 0;
-	smpt_info->unmap_count = 0;
-	return 0;
-free_smpt:
-	kfree(smpt_info);
-	return err;
-}
-
-/**
- * mic_smpt_uninit - UnInitialize MIC System Memory Page Tables.
- *
- * @mdev: pointer to mic_device instance.
- *
- * returns None.
- */
-void mic_smpt_uninit(struct mic_device *mdev)
-{
-	struct mic_smpt_info *smpt_info = mdev->smpt;
-	int i;
-
-	dev_dbg(mdev->sdev->parent,
-		"nodeid %d SMPT ref count %lld map %lld unmap %lld\n",
-		mdev->id, smpt_info->ref_count,
-		smpt_info->map_count, smpt_info->unmap_count);
-
-	for (i = 0; i < smpt_info->info.num_reg; i++) {
-		dev_dbg(mdev->sdev->parent,
-			"SMPT entry[%d] dma_addr = 0x%llx ref_count = %lld\n",
-			i, smpt_info->entry[i].dma_addr,
-			smpt_info->entry[i].ref_count);
-		if (smpt_info->entry[i].ref_count)
-			dev_warn(mdev->sdev->parent,
-				 "ref count for entry %d is not zero\n", i);
-	}
-	kfree(smpt_info->entry);
-	kfree(smpt_info);
-}
-
-/**
- * mic_smpt_restore - Restore MIC System Memory Page Tables.
- *
- * @mdev: pointer to mic_device instance.
- *
- * Restore the SMPT registers to values previously stored in the
- * SW data structures. Some MIC steppings lose register state
- * across resets and this API should be called for performing
- * a restore operation if required.
- *
- * returns None.
- */
-void mic_smpt_restore(struct mic_device *mdev)
-{
-	int i;
-	dma_addr_t dma_addr;
-
-	for (i = 0; i < mdev->smpt->info.num_reg; i++) {
-		dma_addr = mdev->smpt->entry[i].dma_addr;
-		mdev->smpt_ops->set(mdev, dma_addr, i);
-	}
-}
diff --git a/drivers/misc/mic/host/mic_smpt.h b/drivers/misc/mic/host/mic_smpt.h
deleted file mode 100644
index 51970ab..0000000
--- a/drivers/misc/mic/host/mic_smpt.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#ifndef MIC_SMPT_H
-#define MIC_SMPT_H
-/**
- * struct mic_smpt_ops - MIC HW specific SMPT operations.
- * @init: Initialize hardware specific SMPT information in mic_smpt_hw_info.
- * @set: Set the value for a particular SMPT entry.
- */
-struct mic_smpt_ops {
-	void (*init)(struct mic_device *mdev);
-	void (*set)(struct mic_device *mdev, dma_addr_t dma_addr, u8 index);
-};
-
-/**
- * struct mic_smpt - MIC SMPT entry information.
- * @dma_addr: Base DMA address for this SMPT entry.
- * @ref_count: Number of active mappings for this SMPT entry in bytes.
- */
-struct mic_smpt {
-	dma_addr_t dma_addr;
-	s64 ref_count;
-};
-
-/**
- * struct mic_smpt_hw_info - MIC SMPT hardware specific information.
- * @num_reg: Number of SMPT registers.
- * @page_shift: System memory page shift.
- * @page_size: System memory page size.
- * @base: System address base.
- */
-struct mic_smpt_hw_info {
-	u8 num_reg;
-	u8 page_shift;
-	u64 page_size;
-	u64 base;
-};
-
-/**
- * struct mic_smpt_info - MIC SMPT information.
- * @entry: Array of SMPT entries.
- * @smpt_lock: Spin lock protecting access to SMPT data structures.
- * @info: Hardware specific SMPT information.
- * @ref_count: Number of active SMPT mappings (for debug).
- * @map_count: Number of SMPT mappings created (for debug).
- * @unmap_count: Number of SMPT mappings destroyed (for debug).
- */
-struct mic_smpt_info {
-	struct mic_smpt *entry;
-	spinlock_t smpt_lock;
-	struct mic_smpt_hw_info info;
-	s64 ref_count;
-	s64 map_count;
-	s64 unmap_count;
-};
-
-dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size);
-void mic_unmap_single(struct mic_device *mdev,
-	dma_addr_t mic_addr, size_t size);
-dma_addr_t mic_map(struct mic_device *mdev,
-	dma_addr_t dma_addr, size_t size);
-void mic_unmap(struct mic_device *mdev, dma_addr_t mic_addr, size_t size);
-
-/**
- * mic_map_error - Check a MIC address for errors.
- *
- * @mdev: pointer to mic_device instance.
- *
- * returns Whether there was an error during mic_map..(..) APIs.
- */
-static inline bool mic_map_error(dma_addr_t mic_addr)
-{
-	return !mic_addr;
-}
-
-int mic_smpt_init(struct mic_device *mdev);
-void mic_smpt_uninit(struct mic_device *mdev);
-void mic_smpt_restore(struct mic_device *mdev);
-
-#endif
diff --git a/drivers/misc/mic/host/mic_sysfs.c b/drivers/misc/mic/host/mic_sysfs.c
deleted file mode 100644
index 6dd864e..0000000
--- a/drivers/misc/mic/host/mic_sysfs.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/pci.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-
-/*
- * A state-to-string lookup table, for exposing a human readable state
- * via sysfs. Always keep in sync with enum mic_states
- */
-static const char * const mic_state_string[] = {
-	[MIC_OFFLINE] = "offline",
-	[MIC_ONLINE] = "online",
-	[MIC_SHUTTING_DOWN] = "shutting_down",
-	[MIC_RESET_FAILED] = "reset_failed",
-	[MIC_SUSPENDING] = "suspending",
-	[MIC_SUSPENDED] = "suspended",
-};
-
-/*
- * A shutdown-status-to-string lookup table, for exposing a human
- * readable state via sysfs. Always keep in sync with enum mic_shutdown_status
- */
-static const char * const mic_shutdown_status_string[] = {
-	[MIC_NOP] = "nop",
-	[MIC_CRASHED] = "crashed",
-	[MIC_HALTED] = "halted",
-	[MIC_POWER_OFF] = "poweroff",
-	[MIC_RESTART] = "restart",
-};
-
-void mic_set_shutdown_status(struct mic_device *mdev, u8 shutdown_status)
-{
-	dev_dbg(mdev->sdev->parent, "Shutdown Status %s -> %s\n",
-		mic_shutdown_status_string[mdev->shutdown_status],
-		mic_shutdown_status_string[shutdown_status]);
-	mdev->shutdown_status = shutdown_status;
-}
-
-void mic_set_state(struct mic_device *mdev, u8 state)
-{
-	dev_dbg(mdev->sdev->parent, "State %s -> %s\n",
-		mic_state_string[mdev->state],
-		mic_state_string[state]);
-	mdev->state = state;
-	sysfs_notify_dirent(mdev->state_sysfs);
-}
-
-static ssize_t
-family_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	static const char x100[] = "x100";
-	static const char unknown[] = "Unknown";
-	const char *card = NULL;
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev)
-		return -EINVAL;
-
-	switch (mdev->family) {
-	case MIC_FAMILY_X100:
-		card = x100;
-		break;
-	default:
-		card = unknown;
-		break;
-	}
-	return scnprintf(buf, PAGE_SIZE, "%s\n", card);
-}
-static DEVICE_ATTR_RO(family);
-
-static ssize_t
-stepping_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-	char *string = "??";
-
-	if (!mdev)
-		return -EINVAL;
-
-	switch (mdev->stepping) {
-	case MIC_A0_STEP:
-		string = "A0";
-		break;
-	case MIC_B0_STEP:
-		string = "B0";
-		break;
-	case MIC_B1_STEP:
-		string = "B1";
-		break;
-	case MIC_C0_STEP:
-		string = "C0";
-		break;
-	default:
-		break;
-	}
-	return scnprintf(buf, PAGE_SIZE, "%s\n", string);
-}
-static DEVICE_ATTR_RO(stepping);
-
-static ssize_t
-state_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev || mdev->state >= MIC_LAST)
-		return -EINVAL;
-
-	return scnprintf(buf, PAGE_SIZE, "%s\n",
-		mic_state_string[mdev->state]);
-}
-
-static ssize_t
-state_store(struct device *dev, struct device_attribute *attr,
-	    const char *buf, size_t count)
-{
-	int rc = 0;
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-	if (!mdev)
-		return -EINVAL;
-	if (sysfs_streq(buf, "boot")) {
-		rc = mic_start(mdev, buf);
-		if (rc) {
-			dev_err(mdev->sdev->parent,
-				"mic_boot failed rc %d\n", rc);
-			count = rc;
-		}
-		goto done;
-	}
-
-	if (sysfs_streq(buf, "reset")) {
-		schedule_work(&mdev->reset_trigger_work);
-		goto done;
-	}
-
-	if (sysfs_streq(buf, "shutdown")) {
-		mic_shutdown(mdev);
-		goto done;
-	}
-
-	if (sysfs_streq(buf, "suspend")) {
-		mic_suspend(mdev);
-		goto done;
-	}
-
-	count = -EINVAL;
-done:
-	return count;
-}
-static DEVICE_ATTR_RW(state);
-
-static ssize_t shutdown_status_show(struct device *dev,
-				    struct device_attribute *attr, char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev || mdev->shutdown_status >= MIC_STATUS_LAST)
-		return -EINVAL;
-
-	return scnprintf(buf, PAGE_SIZE, "%s\n",
-		mic_shutdown_status_string[mdev->shutdown_status]);
-}
-static DEVICE_ATTR_RO(shutdown_status);
-
-static ssize_t
-cmdline_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-	char *cmdline;
-
-	if (!mdev)
-		return -EINVAL;
-
-	cmdline = mdev->cmdline;
-
-	if (cmdline)
-		return scnprintf(buf, PAGE_SIZE, "%s\n", cmdline);
-	return 0;
-}
-
-static ssize_t
-cmdline_store(struct device *dev, struct device_attribute *attr,
-	      const char *buf, size_t count)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev)
-		return -EINVAL;
-
-	mutex_lock(&mdev->mic_mutex);
-	kfree(mdev->cmdline);
-
-	mdev->cmdline = kmalloc(count + 1, GFP_KERNEL);
-	if (!mdev->cmdline) {
-		count = -ENOMEM;
-		goto unlock;
-	}
-
-	strncpy(mdev->cmdline, buf, count);
-
-	if (mdev->cmdline[count - 1] == '\n')
-		mdev->cmdline[count - 1] = '\0';
-	else
-		mdev->cmdline[count] = '\0';
-unlock:
-	mutex_unlock(&mdev->mic_mutex);
-	return count;
-}
-static DEVICE_ATTR_RW(cmdline);
-
-static ssize_t
-firmware_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-	char *firmware;
-
-	if (!mdev)
-		return -EINVAL;
-
-	firmware = mdev->firmware;
-
-	if (firmware)
-		return scnprintf(buf, PAGE_SIZE, "%s\n", firmware);
-	return 0;
-}
-
-static ssize_t
-firmware_store(struct device *dev, struct device_attribute *attr,
-	       const char *buf, size_t count)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev)
-		return -EINVAL;
-
-	mutex_lock(&mdev->mic_mutex);
-	kfree(mdev->firmware);
-
-	mdev->firmware = kmalloc(count + 1, GFP_KERNEL);
-	if (!mdev->firmware) {
-		count = -ENOMEM;
-		goto unlock;
-	}
-	strncpy(mdev->firmware, buf, count);
-
-	if (mdev->firmware[count - 1] == '\n')
-		mdev->firmware[count - 1] = '\0';
-	else
-		mdev->firmware[count] = '\0';
-unlock:
-	mutex_unlock(&mdev->mic_mutex);
-	return count;
-}
-static DEVICE_ATTR_RW(firmware);
-
-static ssize_t
-ramdisk_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-	char *ramdisk;
-
-	if (!mdev)
-		return -EINVAL;
-
-	ramdisk = mdev->ramdisk;
-
-	if (ramdisk)
-		return scnprintf(buf, PAGE_SIZE, "%s\n", ramdisk);
-	return 0;
-}
-
-static ssize_t
-ramdisk_store(struct device *dev, struct device_attribute *attr,
-	      const char *buf, size_t count)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev)
-		return -EINVAL;
-
-	mutex_lock(&mdev->mic_mutex);
-	kfree(mdev->ramdisk);
-
-	mdev->ramdisk = kmalloc(count + 1, GFP_KERNEL);
-	if (!mdev->ramdisk) {
-		count = -ENOMEM;
-		goto unlock;
-	}
-
-	strncpy(mdev->ramdisk, buf, count);
-
-	if (mdev->ramdisk[count - 1] == '\n')
-		mdev->ramdisk[count - 1] = '\0';
-	else
-		mdev->ramdisk[count] = '\0';
-unlock:
-	mutex_unlock(&mdev->mic_mutex);
-	return count;
-}
-static DEVICE_ATTR_RW(ramdisk);
-
-static ssize_t
-bootmode_show(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-	char *bootmode;
-
-	if (!mdev)
-		return -EINVAL;
-
-	bootmode = mdev->bootmode;
-
-	if (bootmode)
-		return scnprintf(buf, PAGE_SIZE, "%s\n", bootmode);
-	return 0;
-}
-
-static ssize_t
-bootmode_store(struct device *dev, struct device_attribute *attr,
-	       const char *buf, size_t count)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev)
-		return -EINVAL;
-
-	if (!sysfs_streq(buf, "linux") && !sysfs_streq(buf, "elf"))
-		return -EINVAL;
-
-	mutex_lock(&mdev->mic_mutex);
-	kfree(mdev->bootmode);
-
-	mdev->bootmode = kmalloc(count + 1, GFP_KERNEL);
-	if (!mdev->bootmode) {
-		count = -ENOMEM;
-		goto unlock;
-	}
-
-	strncpy(mdev->bootmode, buf, count);
-
-	if (mdev->bootmode[count - 1] == '\n')
-		mdev->bootmode[count - 1] = '\0';
-	else
-		mdev->bootmode[count] = '\0';
-unlock:
-	mutex_unlock(&mdev->mic_mutex);
-	return count;
-}
-static DEVICE_ATTR_RW(bootmode);
-
-static ssize_t
-log_buf_addr_show(struct device *dev, struct device_attribute *attr,
-		  char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev)
-		return -EINVAL;
-
-	return scnprintf(buf, PAGE_SIZE, "%p\n", mdev->log_buf_addr);
-}
-
-static ssize_t
-log_buf_addr_store(struct device *dev, struct device_attribute *attr,
-		   const char *buf, size_t count)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-	int ret;
-	unsigned long addr;
-
-	if (!mdev)
-		return -EINVAL;
-
-	ret = kstrtoul(buf, 16, &addr);
-	if (ret)
-		goto exit;
-
-	mdev->log_buf_addr = (void *)addr;
-	ret = count;
-exit:
-	return ret;
-}
-static DEVICE_ATTR_RW(log_buf_addr);
-
-static ssize_t
-log_buf_len_show(struct device *dev, struct device_attribute *attr,
-		 char *buf)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-
-	if (!mdev)
-		return -EINVAL;
-
-	return scnprintf(buf, PAGE_SIZE, "%p\n", mdev->log_buf_len);
-}
-
-static ssize_t
-log_buf_len_store(struct device *dev, struct device_attribute *attr,
-		  const char *buf, size_t count)
-{
-	struct mic_device *mdev = dev_get_drvdata(dev->parent);
-	int ret;
-	unsigned long addr;
-
-	if (!mdev)
-		return -EINVAL;
-
-	ret = kstrtoul(buf, 16, &addr);
-	if (ret)
-		goto exit;
-
-	mdev->log_buf_len = (int *)addr;
-	ret = count;
-exit:
-	return ret;
-}
-static DEVICE_ATTR_RW(log_buf_len);
-
-static struct attribute *mic_default_attrs[] = {
-	&dev_attr_family.attr,
-	&dev_attr_stepping.attr,
-	&dev_attr_state.attr,
-	&dev_attr_shutdown_status.attr,
-	&dev_attr_cmdline.attr,
-	&dev_attr_firmware.attr,
-	&dev_attr_ramdisk.attr,
-	&dev_attr_bootmode.attr,
-	&dev_attr_log_buf_addr.attr,
-	&dev_attr_log_buf_len.attr,
-
-	NULL
-};
-
-ATTRIBUTE_GROUPS(mic_default);
-
-void mic_sysfs_init(struct mic_device *mdev)
-{
-	mdev->attr_group = mic_default_groups;
-}
diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c
deleted file mode 100644
index e04bb4f..0000000
--- a/drivers/misc/mic/host/mic_virtio.c
+++ /dev/null
@@ -1,700 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/pci.h>
-#include <linux/sched.h>
-#include <linux/uaccess.h>
-
-#include <linux/mic_common.h>
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_smpt.h"
-#include "mic_virtio.h"
-
-/*
- * Initiates the copies across the PCIe bus from card memory to
- * a user space buffer.
- */
-static int mic_virtio_copy_to_user(struct mic_vdev *mvdev,
-		void __user *ubuf, size_t len, u64 addr)
-{
-	int err;
-	void __iomem *dbuf = mvdev->mdev->aper.va + addr;
-	/*
-	 * We are copying from IO below an should ideally use something
-	 * like copy_to_user_fromio(..) if it existed.
-	 */
-	if (copy_to_user(ubuf, (void __force *)dbuf, len)) {
-		err = -EFAULT;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, err);
-		goto err;
-	}
-	mvdev->in_bytes += len;
-	err = 0;
-err:
-	return err;
-}
-
-/*
- * Initiates copies across the PCIe bus from a user space
- * buffer to card memory.
- */
-static int mic_virtio_copy_from_user(struct mic_vdev *mvdev,
-		void __user *ubuf, size_t len, u64 addr)
-{
-	int err;
-	void __iomem *dbuf = mvdev->mdev->aper.va + addr;
-	/*
-	 * We are copying to IO below and should ideally use something
-	 * like copy_from_user_toio(..) if it existed.
-	 */
-	if (copy_from_user((void __force *)dbuf, ubuf, len)) {
-		err = -EFAULT;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, err);
-		goto err;
-	}
-	mvdev->out_bytes += len;
-	err = 0;
-err:
-	return err;
-}
-
-#define MIC_VRINGH_READ true
-
-/* The function to call to notify the card about added buffers */
-static void mic_notify(struct vringh *vrh)
-{
-	struct mic_vringh *mvrh = container_of(vrh, struct mic_vringh, vrh);
-	struct mic_vdev *mvdev = mvrh->mvdev;
-	s8 db = mvdev->dc->h2c_vdev_db;
-
-	if (db != -1)
-		mvdev->mdev->ops->send_intr(mvdev->mdev, db);
-}
-
-/* Determine the total number of bytes consumed in a VRINGH KIOV */
-static inline u32 mic_vringh_iov_consumed(struct vringh_kiov *iov)
-{
-	int i;
-	u32 total = iov->consumed;
-
-	for (i = 0; i < iov->i; i++)
-		total += iov->iov[i].iov_len;
-	return total;
-}
-
-/*
- * Traverse the VRINGH KIOV and issue the APIs to trigger the copies.
- * This API is heavily based on the vringh_iov_xfer(..) implementation
- * in vringh.c. The reason we cannot reuse vringh_iov_pull_kern(..)
- * and vringh_iov_push_kern(..) directly is because there is no
- * way to override the VRINGH xfer(..) routines as of v3.10.
- */
-static int mic_vringh_copy(struct mic_vdev *mvdev, struct vringh_kiov *iov,
-	void __user *ubuf, size_t len, bool read, size_t *out_len)
-{
-	int ret = 0;
-	size_t partlen, tot_len = 0;
-
-	while (len && iov->i < iov->used) {
-		partlen = min(iov->iov[iov->i].iov_len, len);
-		if (read)
-			ret = mic_virtio_copy_to_user(mvdev,
-				ubuf, partlen,
-				(u64)iov->iov[iov->i].iov_base);
-		else
-			ret = mic_virtio_copy_from_user(mvdev,
-				ubuf, partlen,
-				(u64)iov->iov[iov->i].iov_base);
-		if (ret) {
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			break;
-		}
-		len -= partlen;
-		ubuf += partlen;
-		tot_len += partlen;
-		iov->consumed += partlen;
-		iov->iov[iov->i].iov_len -= partlen;
-		iov->iov[iov->i].iov_base += partlen;
-		if (!iov->iov[iov->i].iov_len) {
-			/* Fix up old iov element then increment. */
-			iov->iov[iov->i].iov_len = iov->consumed;
-			iov->iov[iov->i].iov_base -= iov->consumed;
-
-			iov->consumed = 0;
-			iov->i++;
-		}
-	}
-	*out_len = tot_len;
-	return ret;
-}
-
-/*
- * Use the standard VRINGH infrastructure in the kernel to fetch new
- * descriptors, initiate the copies and update the used ring.
- */
-static int _mic_virtio_copy(struct mic_vdev *mvdev,
-	struct mic_copy_desc *copy)
-{
-	int ret = 0, iovcnt = copy->iovcnt;
-	struct iovec iov;
-	struct iovec __user *u_iov = copy->iov;
-	void __user *ubuf = NULL;
-	struct mic_vringh *mvr = &mvdev->mvr[copy->vr_idx];
-	struct vringh_kiov *riov = &mvr->riov;
-	struct vringh_kiov *wiov = &mvr->wiov;
-	struct vringh *vrh = &mvr->vrh;
-	u16 *head = &mvr->head;
-	struct mic_vring *vr = &mvr->vring;
-	size_t len = 0, out_len;
-
-	copy->out_len = 0;
-	/* Fetch a new IOVEC if all previous elements have been processed */
-	if (riov->i == riov->used && wiov->i == wiov->used) {
-		ret = vringh_getdesc_kern(vrh, riov, wiov,
-				head, GFP_KERNEL);
-		/* Check if there are available descriptors */
-		if (ret <= 0)
-			return ret;
-	}
-	while (iovcnt) {
-		if (!len) {
-			/* Copy over a new iovec from user space. */
-			ret = copy_from_user(&iov, u_iov, sizeof(*u_iov));
-			if (ret) {
-				ret = -EINVAL;
-				dev_err(mic_dev(mvdev), "%s %d err %d\n",
-					__func__, __LINE__, ret);
-				break;
-			}
-			len = iov.iov_len;
-			ubuf = iov.iov_base;
-		}
-		/* Issue all the read descriptors first */
-		ret = mic_vringh_copy(mvdev, riov, ubuf, len,
-			MIC_VRINGH_READ, &out_len);
-		if (ret) {
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			break;
-		}
-		len -= out_len;
-		ubuf += out_len;
-		copy->out_len += out_len;
-		/* Issue the write descriptors next */
-		ret = mic_vringh_copy(mvdev, wiov, ubuf, len,
-			!MIC_VRINGH_READ, &out_len);
-		if (ret) {
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			break;
-		}
-		len -= out_len;
-		ubuf += out_len;
-		copy->out_len += out_len;
-		if (!len) {
-			/* One user space iovec is now completed */
-			iovcnt--;
-			u_iov++;
-		}
-		/* Exit loop if all elements in KIOVs have been processed. */
-		if (riov->i == riov->used && wiov->i == wiov->used)
-			break;
-	}
-	/*
-	 * Update the used ring if a descriptor was available and some data was
-	 * copied in/out and the user asked for a used ring update.
-	 */
-	if (*head != USHRT_MAX && copy->out_len && copy->update_used) {
-		u32 total = 0;
-
-		/* Determine the total data consumed */
-		total += mic_vringh_iov_consumed(riov);
-		total += mic_vringh_iov_consumed(wiov);
-		vringh_complete_kern(vrh, *head, total);
-		*head = USHRT_MAX;
-		if (vringh_need_notify_kern(vrh) > 0)
-			vringh_notify(vrh);
-		vringh_kiov_cleanup(riov);
-		vringh_kiov_cleanup(wiov);
-		/* Update avail idx for user space */
-		vr->info->avail_idx = vrh->last_avail_idx;
-	}
-	return ret;
-}
-
-static inline int mic_verify_copy_args(struct mic_vdev *mvdev,
-		struct mic_copy_desc *copy)
-{
-	if (copy->vr_idx >= mvdev->dd->num_vq) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EINVAL);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/* Copy a specified number of virtio descriptors in a chain */
-int mic_virtio_copy_desc(struct mic_vdev *mvdev,
-		struct mic_copy_desc *copy)
-{
-	int err;
-	struct mic_vringh *mvr = &mvdev->mvr[copy->vr_idx];
-
-	err = mic_verify_copy_args(mvdev, copy);
-	if (err)
-		return err;
-
-	mutex_lock(&mvr->vr_mutex);
-	if (!mic_vdevup(mvdev)) {
-		err = -ENODEV;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, err);
-		goto err;
-	}
-	err = _mic_virtio_copy(mvdev, copy);
-	if (err) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, err);
-	}
-err:
-	mutex_unlock(&mvr->vr_mutex);
-	return err;
-}
-
-static void mic_virtio_init_post(struct mic_vdev *mvdev)
-{
-	struct mic_vqconfig *vqconfig = mic_vq_config(mvdev->dd);
-	int i;
-
-	for (i = 0; i < mvdev->dd->num_vq; i++) {
-		if (!le64_to_cpu(vqconfig[i].used_address)) {
-			dev_warn(mic_dev(mvdev), "used_address zero??\n");
-			continue;
-		}
-		mvdev->mvr[i].vrh.vring.used =
-			(void __force *)mvdev->mdev->aper.va +
-			le64_to_cpu(vqconfig[i].used_address);
-	}
-
-	mvdev->dc->used_address_updated = 0;
-
-	dev_dbg(mic_dev(mvdev), "%s: device type %d LINKUP\n",
-		__func__, mvdev->virtio_id);
-}
-
-static inline void mic_virtio_device_reset(struct mic_vdev *mvdev)
-{
-	int i;
-
-	dev_dbg(mic_dev(mvdev), "%s: status %d device type %d RESET\n",
-		__func__, mvdev->dd->status, mvdev->virtio_id);
-
-	for (i = 0; i < mvdev->dd->num_vq; i++)
-		/*
-		 * Avoid lockdep false positive. The + 1 is for the mic
-		 * mutex which is held in the reset devices code path.
-		 */
-		mutex_lock_nested(&mvdev->mvr[i].vr_mutex, i + 1);
-
-	/* 0 status means "reset" */
-	mvdev->dd->status = 0;
-	mvdev->dc->vdev_reset = 0;
-	mvdev->dc->host_ack = 1;
-
-	for (i = 0; i < mvdev->dd->num_vq; i++) {
-		struct vringh *vrh = &mvdev->mvr[i].vrh;
-		mvdev->mvr[i].vring.info->avail_idx = 0;
-		vrh->completed = 0;
-		vrh->last_avail_idx = 0;
-		vrh->last_used_idx = 0;
-	}
-
-	for (i = 0; i < mvdev->dd->num_vq; i++)
-		mutex_unlock(&mvdev->mvr[i].vr_mutex);
-}
-
-void mic_virtio_reset_devices(struct mic_device *mdev)
-{
-	struct list_head *pos, *tmp;
-	struct mic_vdev *mvdev;
-
-	dev_dbg(mdev->sdev->parent, "%s\n",  __func__);
-
-	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
-		mvdev = list_entry(pos, struct mic_vdev, list);
-		mic_virtio_device_reset(mvdev);
-		mvdev->poll_wake = 1;
-		wake_up(&mvdev->waitq);
-	}
-}
-
-void mic_bh_handler(struct work_struct *work)
-{
-	struct mic_vdev *mvdev = container_of(work, struct mic_vdev,
-			virtio_bh_work);
-
-	if (mvdev->dc->used_address_updated)
-		mic_virtio_init_post(mvdev);
-
-	if (mvdev->dc->vdev_reset)
-		mic_virtio_device_reset(mvdev);
-
-	mvdev->poll_wake = 1;
-	wake_up(&mvdev->waitq);
-}
-
-static irqreturn_t mic_virtio_intr_handler(int irq, void *data)
-{
-	struct mic_vdev *mvdev = data;
-	struct mic_device *mdev = mvdev->mdev;
-
-	mdev->ops->ack_interrupt(mdev);
-	schedule_work(&mvdev->virtio_bh_work);
-	return IRQ_HANDLED;
-}
-
-int mic_virtio_config_change(struct mic_vdev *mvdev,
-			void __user *argp)
-{
-	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake);
-	int ret = 0, retry, i;
-	struct mic_bootparam *bootparam = mvdev->mdev->dp;
-	s8 db = bootparam->h2c_config_db;
-
-	mutex_lock(&mvdev->mdev->mic_mutex);
-	for (i = 0; i < mvdev->dd->num_vq; i++)
-		mutex_lock_nested(&mvdev->mvr[i].vr_mutex, i + 1);
-
-	if (db == -1 || mvdev->dd->type == -1) {
-		ret = -EIO;
-		goto exit;
-	}
-
-	if (copy_from_user(mic_vq_configspace(mvdev->dd),
-			   argp, mvdev->dd->config_len)) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EFAULT);
-		ret = -EFAULT;
-		goto exit;
-	}
-	mvdev->dc->config_change = MIC_VIRTIO_PARAM_CONFIG_CHANGED;
-	mvdev->mdev->ops->send_intr(mvdev->mdev, db);
-
-	for (retry = 100; retry--;) {
-		ret = wait_event_timeout(wake,
-			mvdev->dc->guest_ack, msecs_to_jiffies(100));
-		if (ret)
-			break;
-	}
-
-	dev_dbg(mic_dev(mvdev),
-		"%s %d retry: %d\n", __func__, __LINE__, retry);
-	mvdev->dc->config_change = 0;
-	mvdev->dc->guest_ack = 0;
-exit:
-	for (i = 0; i < mvdev->dd->num_vq; i++)
-		mutex_unlock(&mvdev->mvr[i].vr_mutex);
-	mutex_unlock(&mvdev->mdev->mic_mutex);
-	return ret;
-}
-
-static int mic_copy_dp_entry(struct mic_vdev *mvdev,
-					void __user *argp,
-					__u8 *type,
-					struct mic_device_desc **devpage)
-{
-	struct mic_device *mdev = mvdev->mdev;
-	struct mic_device_desc dd, *dd_config, *devp;
-	struct mic_vqconfig *vqconfig;
-	int ret = 0, i;
-	bool slot_found = false;
-
-	if (copy_from_user(&dd, argp, sizeof(dd))) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EFAULT);
-		return -EFAULT;
-	}
-
-	if (mic_aligned_desc_size(&dd) > MIC_MAX_DESC_BLK_SIZE ||
-	    dd.num_vq > MIC_MAX_VRINGS) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EINVAL);
-		return -EINVAL;
-	}
-
-	dd_config = kmalloc(mic_desc_size(&dd), GFP_KERNEL);
-	if (dd_config == NULL) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -ENOMEM);
-		return -ENOMEM;
-	}
-	if (copy_from_user(dd_config, argp, mic_desc_size(&dd))) {
-		ret = -EFAULT;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, ret);
-		goto exit;
-	}
-
-	vqconfig = mic_vq_config(dd_config);
-	for (i = 0; i < dd.num_vq; i++) {
-		if (le16_to_cpu(vqconfig[i].num) > MIC_MAX_VRING_ENTRIES) {
-			ret =  -EINVAL;
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			goto exit;
-		}
-	}
-
-	/* Find the first free device page entry */
-	for (i = sizeof(struct mic_bootparam);
-		i < MIC_DP_SIZE - mic_total_desc_size(dd_config);
-		i += mic_total_desc_size(devp)) {
-		devp = mdev->dp + i;
-		if (devp->type == 0 || devp->type == -1) {
-			slot_found = true;
-			break;
-		}
-	}
-	if (!slot_found) {
-		ret =  -EINVAL;
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, ret);
-		goto exit;
-	}
-	/*
-	 * Save off the type before doing the memcpy. Type will be set in the
-	 * end after completing all initialization for the new device.
-	 */
-	*type = dd_config->type;
-	dd_config->type = 0;
-	memcpy(devp, dd_config, mic_desc_size(dd_config));
-
-	*devpage = devp;
-exit:
-	kfree(dd_config);
-	return ret;
-}
-
-static void mic_init_device_ctrl(struct mic_vdev *mvdev,
-				struct mic_device_desc *devpage)
-{
-	struct mic_device_ctrl *dc;
-
-	dc = (void *)devpage + mic_aligned_desc_size(devpage);
-
-	dc->config_change = 0;
-	dc->guest_ack = 0;
-	dc->vdev_reset = 0;
-	dc->host_ack = 0;
-	dc->used_address_updated = 0;
-	dc->c2h_vdev_db = -1;
-	dc->h2c_vdev_db = -1;
-	mvdev->dc = dc;
-}
-
-int mic_virtio_add_device(struct mic_vdev *mvdev,
-			void __user *argp)
-{
-	struct mic_device *mdev = mvdev->mdev;
-	struct mic_device_desc *dd = NULL;
-	struct mic_vqconfig *vqconfig;
-	int vr_size, i, j, ret;
-	u8 type = 0;
-	s8 db;
-	char irqname[10];
-	struct mic_bootparam *bootparam = mdev->dp;
-	u16 num;
-	dma_addr_t vr_addr;
-
-	mutex_lock(&mdev->mic_mutex);
-
-	ret = mic_copy_dp_entry(mvdev, argp, &type, &dd);
-	if (ret) {
-		mutex_unlock(&mdev->mic_mutex);
-		return ret;
-	}
-
-	mic_init_device_ctrl(mvdev, dd);
-
-	mvdev->dd = dd;
-	mvdev->virtio_id = type;
-	vqconfig = mic_vq_config(dd);
-	INIT_WORK(&mvdev->virtio_bh_work, mic_bh_handler);
-
-	for (i = 0; i < dd->num_vq; i++) {
-		struct mic_vringh *mvr = &mvdev->mvr[i];
-		struct mic_vring *vr = &mvdev->mvr[i].vring;
-		num = le16_to_cpu(vqconfig[i].num);
-		mutex_init(&mvr->vr_mutex);
-		vr_size = PAGE_ALIGN(vring_size(num, MIC_VIRTIO_RING_ALIGN) +
-			sizeof(struct _mic_vring_info));
-		vr->va = (void *)
-			__get_free_pages(GFP_KERNEL | __GFP_ZERO,
-					 get_order(vr_size));
-		if (!vr->va) {
-			ret = -ENOMEM;
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			goto err;
-		}
-		vr->len = vr_size;
-		vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN);
-		vr->info->magic = cpu_to_le32(MIC_MAGIC + mvdev->virtio_id + i);
-		vr_addr = mic_map_single(mdev, vr->va, vr_size);
-		if (mic_map_error(vr_addr)) {
-			free_pages((unsigned long)vr->va, get_order(vr_size));
-			ret = -ENOMEM;
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			goto err;
-		}
-		vqconfig[i].address = cpu_to_le64(vr_addr);
-
-		vring_init(&vr->vr, num, vr->va, MIC_VIRTIO_RING_ALIGN);
-		ret = vringh_init_kern(&mvr->vrh,
-			*(u32 *)mic_vq_features(mvdev->dd), num, false,
-			vr->vr.desc, vr->vr.avail, vr->vr.used);
-		if (ret) {
-			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-				__func__, __LINE__, ret);
-			goto err;
-		}
-		vringh_kiov_init(&mvr->riov, NULL, 0);
-		vringh_kiov_init(&mvr->wiov, NULL, 0);
-		mvr->head = USHRT_MAX;
-		mvr->mvdev = mvdev;
-		mvr->vrh.notify = mic_notify;
-		dev_dbg(mdev->sdev->parent,
-			"%s %d index %d va %p info %p vr_size 0x%x\n",
-			__func__, __LINE__, i, vr->va, vr->info, vr_size);
-	}
-
-	snprintf(irqname, sizeof(irqname), "mic%dvirtio%d", mdev->id,
-		 mvdev->virtio_id);
-	mvdev->virtio_db = mic_next_db(mdev);
-	mvdev->virtio_cookie = mic_request_irq(mdev, mic_virtio_intr_handler,
-			irqname, mvdev, mvdev->virtio_db, MIC_INTR_DB);
-	if (IS_ERR(mvdev->virtio_cookie)) {
-		ret = PTR_ERR(mvdev->virtio_cookie);
-		dev_dbg(mdev->sdev->parent, "request irq failed\n");
-		goto err;
-	}
-
-	mvdev->dc->c2h_vdev_db = mvdev->virtio_db;
-
-	list_add_tail(&mvdev->list, &mdev->vdev_list);
-	/*
-	 * Order the type update with previous stores. This write barrier
-	 * is paired with the corresponding read barrier before the uncached
-	 * system memory read of the type, on the card while scanning the
-	 * device page.
-	 */
-	smp_wmb();
-	dd->type = type;
-
-	dev_dbg(mdev->sdev->parent, "Added virtio device id %d\n", dd->type);
-
-	db = bootparam->h2c_config_db;
-	if (db != -1)
-		mdev->ops->send_intr(mdev, db);
-	mutex_unlock(&mdev->mic_mutex);
-	return 0;
-err:
-	vqconfig = mic_vq_config(dd);
-	for (j = 0; j < i; j++) {
-		struct mic_vringh *mvr = &mvdev->mvr[j];
-		mic_unmap_single(mdev, le64_to_cpu(vqconfig[j].address),
-				 mvr->vring.len);
-		free_pages((unsigned long)mvr->vring.va,
-			   get_order(mvr->vring.len));
-	}
-	mutex_unlock(&mdev->mic_mutex);
-	return ret;
-}
-
-void mic_virtio_del_device(struct mic_vdev *mvdev)
-{
-	struct list_head *pos, *tmp;
-	struct mic_vdev *tmp_mvdev;
-	struct mic_device *mdev = mvdev->mdev;
-	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake);
-	int i, ret, retry;
-	struct mic_vqconfig *vqconfig;
-	struct mic_bootparam *bootparam = mdev->dp;
-	s8 db;
-
-	mutex_lock(&mdev->mic_mutex);
-	db = bootparam->h2c_config_db;
-	if (db == -1)
-		goto skip_hot_remove;
-	dev_dbg(mdev->sdev->parent,
-		"Requesting hot remove id %d\n", mvdev->virtio_id);
-	mvdev->dc->config_change = MIC_VIRTIO_PARAM_DEV_REMOVE;
-	mdev->ops->send_intr(mdev, db);
-	for (retry = 100; retry--;) {
-		ret = wait_event_timeout(wake,
-			mvdev->dc->guest_ack, msecs_to_jiffies(100));
-		if (ret)
-			break;
-	}
-	dev_dbg(mdev->sdev->parent,
-		"Device id %d config_change %d guest_ack %d retry %d\n",
-		mvdev->virtio_id, mvdev->dc->config_change,
-		mvdev->dc->guest_ack, retry);
-	mvdev->dc->config_change = 0;
-	mvdev->dc->guest_ack = 0;
-skip_hot_remove:
-	mic_free_irq(mdev, mvdev->virtio_cookie, mvdev);
-	flush_work(&mvdev->virtio_bh_work);
-	vqconfig = mic_vq_config(mvdev->dd);
-	for (i = 0; i < mvdev->dd->num_vq; i++) {
-		struct mic_vringh *mvr = &mvdev->mvr[i];
-		vringh_kiov_cleanup(&mvr->riov);
-		vringh_kiov_cleanup(&mvr->wiov);
-		mic_unmap_single(mdev, le64_to_cpu(vqconfig[i].address),
-				 mvr->vring.len);
-		free_pages((unsigned long)mvr->vring.va,
-			   get_order(mvr->vring.len));
-	}
-
-	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
-		tmp_mvdev = list_entry(pos, struct mic_vdev, list);
-		if (tmp_mvdev == mvdev) {
-			list_del(pos);
-			dev_dbg(mdev->sdev->parent,
-				"Removing virtio device id %d\n",
-				mvdev->virtio_id);
-			break;
-		}
-	}
-	/*
-	 * Order the type update with previous stores. This write barrier
-	 * is paired with the corresponding read barrier before the uncached
-	 * system memory read of the type, on the card while scanning the
-	 * device page.
-	 */
-	smp_wmb();
-	mvdev->dd->type = -1;
-	mutex_unlock(&mdev->mic_mutex);
-}
diff --git a/drivers/misc/mic/host/mic_virtio.h b/drivers/misc/mic/host/mic_virtio.h
deleted file mode 100644
index 184f3c8..0000000
--- a/drivers/misc/mic/host/mic_virtio.h
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#ifndef MIC_VIRTIO_H
-#define MIC_VIRTIO_H
-
-#include <linux/virtio_config.h>
-#include <linux/mic_ioctl.h>
-
-/*
- * Note on endianness.
- * 1. Host can be both BE or LE
- * 2. Guest/card is LE. Host uses le_to_cpu to access desc/avail
- *    rings and ioreadXX/iowriteXX to access used ring.
- * 3. Device page exposed by host to guest contains LE values. Guest
- *    accesses these using ioreadXX/iowriteXX etc. This way in general we
- *    obey the virtio spec according to which guest works with native
- *    endianness and host is aware of guest endianness and does all
- *    required endianness conversion.
- * 4. Data provided from user space to guest (in ADD_DEVICE and
- *    CONFIG_CHANGE ioctl's) is not interpreted by the driver and should be
- *    in guest endianness.
- */
-
-/**
- * struct mic_vringh - Virtio ring host information.
- *
- * @vring: The MIC vring used for setting up user space mappings.
- * @vrh: The host VRINGH used for accessing the card vrings.
- * @riov: The VRINGH read kernel IOV.
- * @wiov: The VRINGH write kernel IOV.
- * @head: The VRINGH head index address passed to vringh_getdesc_kern(..).
- * @vr_mutex: Mutex for synchronizing access to the VRING.
- * @mvdev: Back pointer to MIC virtio device for vringh_notify(..).
- */
-struct mic_vringh {
-	struct mic_vring vring;
-	struct vringh vrh;
-	struct vringh_kiov riov;
-	struct vringh_kiov wiov;
-	u16 head;
-	struct mutex vr_mutex;
-	struct mic_vdev *mvdev;
-};
-
-/**
- * struct mic_vdev - Host information for a card Virtio device.
- *
- * @virtio_id - Virtio device id.
- * @waitq - Waitqueue to allow ring3 apps to poll.
- * @mdev - Back pointer to host MIC device.
- * @poll_wake - Used for waking up threads blocked in poll.
- * @out_bytes - Debug stats for number of bytes copied from host to card.
- * @in_bytes - Debug stats for number of bytes copied from card to host.
- * @mvr - Store per VRING data structures.
- * @virtio_bh_work - Work struct used to schedule virtio bottom half handling.
- * @dd - Virtio device descriptor.
- * @dc - Virtio device control fields.
- * @list - List of Virtio devices.
- * @virtio_db - The doorbell used by the card to interrupt the host.
- * @virtio_cookie - The cookie returned while requesting interrupts.
- */
-struct mic_vdev {
-	int virtio_id;
-	wait_queue_head_t waitq;
-	struct mic_device *mdev;
-	int poll_wake;
-	unsigned long out_bytes;
-	unsigned long in_bytes;
-	struct mic_vringh mvr[MIC_MAX_VRINGS];
-	struct work_struct virtio_bh_work;
-	struct mic_device_desc *dd;
-	struct mic_device_ctrl *dc;
-	struct list_head list;
-	int virtio_db;
-	struct mic_irq *virtio_cookie;
-};
-
-void mic_virtio_uninit(struct mic_device *mdev);
-int mic_virtio_add_device(struct mic_vdev *mvdev,
-			void __user *argp);
-void mic_virtio_del_device(struct mic_vdev *mvdev);
-int mic_virtio_config_change(struct mic_vdev *mvdev,
-			void __user *argp);
-int mic_virtio_copy_desc(struct mic_vdev *mvdev,
-	struct mic_copy_desc *request);
-void mic_virtio_reset_devices(struct mic_device *mdev);
-void mic_bh_handler(struct work_struct *work);
-
-/* Helper API to obtain the MIC PCIe device */
-static inline struct device *mic_dev(struct mic_vdev *mvdev)
-{
-	return mvdev->mdev->sdev->parent;
-}
-
-/* Helper API to check if a virtio device is initialized */
-static inline int mic_vdev_inited(struct mic_vdev *mvdev)
-{
-	/* Device has not been created yet */
-	if (!mvdev->dd || !mvdev->dd->type) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -EINVAL);
-		return -EINVAL;
-	}
-
-	/* Device has been removed/deleted */
-	if (mvdev->dd->type == -1) {
-		dev_err(mic_dev(mvdev), "%s %d err %d\n",
-			__func__, __LINE__, -ENODEV);
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
-/* Helper API to check if a virtio device is running */
-static inline bool mic_vdevup(struct mic_vdev *mvdev)
-{
-	return !!mvdev->dd->status;
-}
-#endif
diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c
deleted file mode 100644
index 0dfa8a8..0000000
--- a/drivers/misc/mic/host/mic_x100.c
+++ /dev/null
@@ -1,570 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#include <linux/fs.h>
-#include <linux/pci.h>
-#include <linux/sched.h>
-#include <linux/firmware.h>
-#include <linux/delay.h>
-
-#include "../common/mic_dev.h"
-#include "mic_device.h"
-#include "mic_x100.h"
-#include "mic_smpt.h"
-
-/**
- * mic_x100_write_spad - write to the scratchpad register
- * @mdev: pointer to mic_device instance
- * @idx: index to the scratchpad register, 0 based
- * @val: the data value to put into the register
- *
- * This function allows writing of a 32bit value to the indexed scratchpad
- * register.
- *
- * RETURNS: none.
- */
-static void
-mic_x100_write_spad(struct mic_device *mdev, unsigned int idx, u32 val)
-{
-	dev_dbg(mdev->sdev->parent, "Writing 0x%x to scratch pad index %d\n",
-		val, idx);
-	mic_mmio_write(&mdev->mmio, val,
-		       MIC_X100_SBOX_BASE_ADDRESS +
-		       MIC_X100_SBOX_SPAD0 + idx * 4);
-}
-
-/**
- * mic_x100_read_spad - read from the scratchpad register
- * @mdev: pointer to mic_device instance
- * @idx: index to scratchpad register, 0 based
- *
- * This function allows reading of the 32bit scratchpad register.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-static u32
-mic_x100_read_spad(struct mic_device *mdev, unsigned int idx)
-{
-	u32 val = mic_mmio_read(&mdev->mmio,
-		MIC_X100_SBOX_BASE_ADDRESS +
-		MIC_X100_SBOX_SPAD0 + idx * 4);
-
-	dev_dbg(mdev->sdev->parent,
-		"Reading 0x%x from scratch pad index %d\n", val, idx);
-	return val;
-}
-
-/**
- * mic_x100_enable_interrupts - Enable interrupts.
- * @mdev: pointer to mic_device instance
- */
-static void mic_x100_enable_interrupts(struct mic_device *mdev)
-{
-	u32 reg;
-	struct mic_mw *mw = &mdev->mmio;
-	u32 sice0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICE0;
-	u32 siac0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SIAC0;
-
-	reg = mic_mmio_read(mw, sice0);
-	reg |= MIC_X100_SBOX_DBR_BITS(0xf) | MIC_X100_SBOX_DMA_BITS(0xff);
-	mic_mmio_write(mw, reg, sice0);
-
-	/*
-	 * Enable auto-clear when enabling interrupts. Applicable only for
-	 * MSI-x. Legacy and MSI mode cannot have auto-clear enabled.
-	 */
-	if (mdev->irq_info.num_vectors > 1) {
-		reg = mic_mmio_read(mw, siac0);
-		reg |= MIC_X100_SBOX_DBR_BITS(0xf) |
-			MIC_X100_SBOX_DMA_BITS(0xff);
-		mic_mmio_write(mw, reg, siac0);
-	}
-}
-
-/**
- * mic_x100_disable_interrupts - Disable interrupts.
- * @mdev: pointer to mic_device instance
- */
-static void mic_x100_disable_interrupts(struct mic_device *mdev)
-{
-	u32 reg;
-	struct mic_mw *mw = &mdev->mmio;
-	u32 sice0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICE0;
-	u32 siac0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SIAC0;
-	u32 sicc0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICC0;
-
-	reg = mic_mmio_read(mw, sice0);
-	mic_mmio_write(mw, reg, sicc0);
-
-	if (mdev->irq_info.num_vectors > 1) {
-		reg = mic_mmio_read(mw, siac0);
-		reg &= ~(MIC_X100_SBOX_DBR_BITS(0xf) |
-			MIC_X100_SBOX_DMA_BITS(0xff));
-		mic_mmio_write(mw, reg, siac0);
-	}
-}
-
-/**
- * mic_x100_send_sbox_intr - Send an MIC_X100_SBOX interrupt to MIC.
- * @mdev: pointer to mic_device instance
- */
-static void mic_x100_send_sbox_intr(struct mic_device *mdev,
-			int doorbell)
-{
-	struct mic_mw *mw = &mdev->mmio;
-	u64 apic_icr_offset = MIC_X100_SBOX_APICICR0 + doorbell * 8;
-	u32 apicicr_low = mic_mmio_read(mw, MIC_X100_SBOX_BASE_ADDRESS +
-					apic_icr_offset);
-
-	/* for MIC we need to make sure we "hit" the send_icr bit (13) */
-	apicicr_low = (apicicr_low | (1 << 13));
-
-	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
-	wmb();
-	mic_mmio_write(mw, apicicr_low,
-		       MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
-}
-
-/**
- * mic_x100_send_rdmasr_intr - Send an RDMASR interrupt to MIC.
- * @mdev: pointer to mic_device instance
- */
-static void mic_x100_send_rdmasr_intr(struct mic_device *mdev,
-			int doorbell)
-{
-	int rdmasr_offset = MIC_X100_SBOX_RDMASR0 + (doorbell << 2);
-	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
-	wmb();
-	mic_mmio_write(&mdev->mmio, 0,
-		       MIC_X100_SBOX_BASE_ADDRESS + rdmasr_offset);
-}
-
-/**
- * __mic_x100_send_intr - Send interrupt to MIC.
- * @mdev: pointer to mic_device instance
- * @doorbell: doorbell number.
- */
-static void mic_x100_send_intr(struct mic_device *mdev, int doorbell)
-{
-	int rdmasr_db;
-	if (doorbell < MIC_X100_NUM_SBOX_IRQ) {
-		mic_x100_send_sbox_intr(mdev, doorbell);
-	} else {
-		rdmasr_db = doorbell - MIC_X100_NUM_SBOX_IRQ +
-			MIC_X100_RDMASR_IRQ_BASE;
-		mic_x100_send_rdmasr_intr(mdev, rdmasr_db);
-	}
-}
-
-/**
- * mic_ack_interrupt - Device specific interrupt handling.
- * @mdev: pointer to mic_device instance
- *
- * Returns: bitmask of doorbell events triggered.
- */
-static u32 mic_x100_ack_interrupt(struct mic_device *mdev)
-{
-	u32 reg = 0;
-	struct mic_mw *mw = &mdev->mmio;
-	u32 sicr0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICR0;
-
-	/* Clear pending bit array. */
-	if (MIC_A0_STEP == mdev->stepping)
-		mic_mmio_write(mw, 1, MIC_X100_SBOX_BASE_ADDRESS +
-			MIC_X100_SBOX_MSIXPBACR);
-
-	if (mdev->irq_info.num_vectors <= 1) {
-		reg = mic_mmio_read(mw, sicr0);
-
-		if (unlikely(!reg))
-			goto done;
-
-		mic_mmio_write(mw, reg, sicr0);
-	}
-
-	if (mdev->stepping >= MIC_B0_STEP)
-		mdev->intr_ops->enable_interrupts(mdev);
-done:
-	return reg;
-}
-
-/**
- * mic_x100_hw_intr_init - Initialize h/w specific interrupt
- * information.
- * @mdev: pointer to mic_device instance
- */
-static void mic_x100_hw_intr_init(struct mic_device *mdev)
-{
-	mdev->intr_info = (struct mic_intr_info *)mic_x100_intr_init;
-}
-
-/**
- * mic_x100_read_msi_to_src_map - read from the MSI mapping registers
- * @mdev: pointer to mic_device instance
- * @idx: index to the mapping register, 0 based
- *
- * This function allows reading of the 32bit MSI mapping register.
- *
- * RETURNS: The value in the register.
- */
-static u32
-mic_x100_read_msi_to_src_map(struct mic_device *mdev, int idx)
-{
-	return mic_mmio_read(&mdev->mmio,
-		MIC_X100_SBOX_BASE_ADDRESS +
-		MIC_X100_SBOX_MXAR0 + idx * 4);
-}
-
-/**
- * mic_x100_program_msi_to_src_map - program the MSI mapping registers
- * @mdev: pointer to mic_device instance
- * @idx: index to the mapping register, 0 based
- * @offset: The bit offset in the register that needs to be updated.
- * @set: boolean specifying if the bit in the specified offset needs
- * to be set or cleared.
- *
- * RETURNS: None.
- */
-static void
-mic_x100_program_msi_to_src_map(struct mic_device *mdev,
-				int idx, int offset, bool set)
-{
-	unsigned long reg;
-	struct mic_mw *mw = &mdev->mmio;
-	u32 mxar = MIC_X100_SBOX_BASE_ADDRESS +
-		MIC_X100_SBOX_MXAR0 + idx * 4;
-
-	reg = mic_mmio_read(mw, mxar);
-	if (set)
-		__set_bit(offset, &reg);
-	else
-		__clear_bit(offset, &reg);
-	mic_mmio_write(mw, reg, mxar);
-}
-
-/*
- * mic_x100_reset_fw_ready - Reset Firmware ready status field.
- * @mdev: pointer to mic_device instance
- */
-static void mic_x100_reset_fw_ready(struct mic_device *mdev)
-{
-	mdev->ops->write_spad(mdev, MIC_X100_DOWNLOAD_INFO, 0);
-}
-
-/*
- * mic_x100_is_fw_ready - Check if firmware is ready.
- * @mdev: pointer to mic_device instance
- */
-static bool mic_x100_is_fw_ready(struct mic_device *mdev)
-{
-	u32 scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO);
-	return MIC_X100_SPAD2_DOWNLOAD_STATUS(scratch2) ? true : false;
-}
-
-/**
- * mic_x100_get_apic_id - Get bootstrap APIC ID.
- * @mdev: pointer to mic_device instance
- */
-static u32 mic_x100_get_apic_id(struct mic_device *mdev)
-{
-	u32 scratch2 = 0;
-
-	scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO);
-	return MIC_X100_SPAD2_APIC_ID(scratch2);
-}
-
-/**
- * mic_x100_send_firmware_intr - Send an interrupt to the firmware on MIC.
- * @mdev: pointer to mic_device instance
- */
-static void mic_x100_send_firmware_intr(struct mic_device *mdev)
-{
-	u32 apicicr_low;
-	u64 apic_icr_offset = MIC_X100_SBOX_APICICR7;
-	int vector = MIC_X100_BSP_INTERRUPT_VECTOR;
-	struct mic_mw *mw = &mdev->mmio;
-
-	/*
-	 * For MIC we need to make sure we "hit"
-	 * the send_icr bit (13).
-	 */
-	apicicr_low = (vector | (1 << 13));
-
-	mic_mmio_write(mw, mic_x100_get_apic_id(mdev),
-		       MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset + 4);
-
-	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
-	wmb();
-	mic_mmio_write(mw, apicicr_low,
-		       MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
-}
-
-/**
- * mic_x100_hw_reset - Reset the MIC device.
- * @mdev: pointer to mic_device instance
- */
-static void mic_x100_hw_reset(struct mic_device *mdev)
-{
-	u32 reset_reg;
-	u32 rgcr = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_RGCR;
-	struct mic_mw *mw = &mdev->mmio;
-
-	/* Ensure that the reset is ordered w.r.t. previous loads and stores */
-	mb();
-	/* Trigger reset */
-	reset_reg = mic_mmio_read(mw, rgcr);
-	reset_reg |= 0x1;
-	mic_mmio_write(mw, reset_reg, rgcr);
-	/*
-	 * It seems we really want to delay at least 1 second
-	 * after touching reset to prevent a lot of problems.
-	 */
-	msleep(1000);
-}
-
-/**
- * mic_x100_load_command_line - Load command line to MIC.
- * @mdev: pointer to mic_device instance
- * @fw: the firmware image
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-static int
-mic_x100_load_command_line(struct mic_device *mdev, const struct firmware *fw)
-{
-	u32 len = 0;
-	u32 boot_mem;
-	char *buf;
-	void __iomem *cmd_line_va = mdev->aper.va + mdev->bootaddr + fw->size;
-#define CMDLINE_SIZE 2048
-
-	boot_mem = mdev->aper.len >> 20;
-	buf = kzalloc(CMDLINE_SIZE, GFP_KERNEL);
-	if (!buf) {
-		dev_err(mdev->sdev->parent,
-			"%s %d allocation failed\n", __func__, __LINE__);
-		return -ENOMEM;
-	}
-	len += snprintf(buf, CMDLINE_SIZE - len,
-		" mem=%dM", boot_mem);
-	if (mdev->cmdline)
-		snprintf(buf + len, CMDLINE_SIZE - len, " %s", mdev->cmdline);
-	memcpy_toio(cmd_line_va, buf, strlen(buf) + 1);
-	kfree(buf);
-	return 0;
-}
-
-/**
- * mic_x100_load_ramdisk - Load ramdisk to MIC.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-static int
-mic_x100_load_ramdisk(struct mic_device *mdev)
-{
-	const struct firmware *fw;
-	int rc;
-	struct boot_params __iomem *bp = mdev->aper.va + mdev->bootaddr;
-
-	rc = request_firmware(&fw,
-			mdev->ramdisk, mdev->sdev->parent);
-	if (rc < 0) {
-		dev_err(mdev->sdev->parent,
-			"ramdisk request_firmware failed: %d %s\n",
-			rc, mdev->ramdisk);
-		goto error;
-	}
-	/*
-	 * Typically the bootaddr for card OS is 64M
-	 * so copy over the ramdisk @ 128M.
-	 */
-	memcpy_toio(mdev->aper.va + (mdev->bootaddr << 1), fw->data, fw->size);
-	iowrite32(mdev->bootaddr << 1, &bp->hdr.ramdisk_image);
-	iowrite32(fw->size, &bp->hdr.ramdisk_size);
-	release_firmware(fw);
-error:
-	return rc;
-}
-
-/**
- * mic_x100_get_boot_addr - Get MIC boot address.
- * @mdev: pointer to mic_device instance
- *
- * This function is called during firmware load to determine
- * the address at which the OS should be downloaded in card
- * memory i.e. GDDR.
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-static int
-mic_x100_get_boot_addr(struct mic_device *mdev)
-{
-	u32 scratch2, boot_addr;
-	int rc = 0;
-
-	scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO);
-	boot_addr = MIC_X100_SPAD2_DOWNLOAD_ADDR(scratch2);
-	dev_dbg(mdev->sdev->parent, "%s %d boot_addr 0x%x\n",
-		__func__, __LINE__, boot_addr);
-	if (boot_addr > (1 << 31)) {
-		dev_err(mdev->sdev->parent,
-			"incorrect bootaddr 0x%x\n",
-			boot_addr);
-		rc = -EINVAL;
-		goto error;
-	}
-	mdev->bootaddr = boot_addr;
-error:
-	return rc;
-}
-
-/**
- * mic_x100_load_firmware - Load firmware to MIC.
- * @mdev: pointer to mic_device instance
- * @buf: buffer containing boot string including firmware/ramdisk path.
- *
- * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
- */
-static int
-mic_x100_load_firmware(struct mic_device *mdev, const char *buf)
-{
-	int rc;
-	const struct firmware *fw;
-
-	rc = mic_x100_get_boot_addr(mdev);
-	if (rc)
-		goto error;
-	/* load OS */
-	rc = request_firmware(&fw, mdev->firmware, mdev->sdev->parent);
-	if (rc < 0) {
-		dev_err(mdev->sdev->parent,
-			"ramdisk request_firmware failed: %d %s\n",
-			rc, mdev->firmware);
-		goto error;
-	}
-	if (mdev->bootaddr > mdev->aper.len - fw->size) {
-		rc = -EINVAL;
-		dev_err(mdev->sdev->parent, "%s %d rc %d bootaddr 0x%x\n",
-			__func__, __LINE__, rc, mdev->bootaddr);
-		release_firmware(fw);
-		goto error;
-	}
-	memcpy_toio(mdev->aper.va + mdev->bootaddr, fw->data, fw->size);
-	mdev->ops->write_spad(mdev, MIC_X100_FW_SIZE, fw->size);
-	if (!strcmp(mdev->bootmode, "elf"))
-		goto done;
-	/* load command line */
-	rc = mic_x100_load_command_line(mdev, fw);
-	if (rc) {
-		dev_err(mdev->sdev->parent, "%s %d rc %d\n",
-			__func__, __LINE__, rc);
-		goto error;
-	}
-	release_firmware(fw);
-	/* load ramdisk */
-	if (mdev->ramdisk)
-		rc = mic_x100_load_ramdisk(mdev);
-error:
-	dev_dbg(mdev->sdev->parent, "%s %d rc %d\n", __func__, __LINE__, rc);
-done:
-	return rc;
-}
-
-/**
- * mic_x100_get_postcode - Get postcode status from firmware.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: postcode.
- */
-static u32 mic_x100_get_postcode(struct mic_device *mdev)
-{
-	return mic_mmio_read(&mdev->mmio, MIC_X100_POSTCODE);
-}
-
-/**
- * mic_x100_smpt_set - Update an SMPT entry with a DMA address.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: none.
- */
-static void
-mic_x100_smpt_set(struct mic_device *mdev, dma_addr_t dma_addr, u8 index)
-{
-#define SNOOP_ON	(0 << 0)
-#define SNOOP_OFF	(1 << 0)
-/*
- * Sbox Smpt Reg Bits:
- * Bits	31:2	Host address
- * Bits	1	RSVD
- * Bits	0	No snoop
- */
-#define BUILD_SMPT(NO_SNOOP, HOST_ADDR)  \
-	(u32)(((HOST_ADDR) << 2) | ((NO_SNOOP) & 0x01))
-
-	uint32_t smpt_reg_val = BUILD_SMPT(SNOOP_ON,
-			dma_addr >> mdev->smpt->info.page_shift);
-	mic_mmio_write(&mdev->mmio, smpt_reg_val,
-		       MIC_X100_SBOX_BASE_ADDRESS +
-		       MIC_X100_SBOX_SMPT00 + (4 * index));
-}
-
-/**
- * mic_x100_smpt_hw_init - Initialize SMPT X100 specific fields.
- * @mdev: pointer to mic_device instance
- *
- * RETURNS: none.
- */
-static void mic_x100_smpt_hw_init(struct mic_device *mdev)
-{
-	struct mic_smpt_hw_info *info = &mdev->smpt->info;
-
-	info->num_reg = 32;
-	info->page_shift = 34;
-	info->page_size = (1ULL << info->page_shift);
-	info->base = 0x8000000000ULL;
-}
-
-struct mic_smpt_ops mic_x100_smpt_ops = {
-	.init = mic_x100_smpt_hw_init,
-	.set = mic_x100_smpt_set,
-};
-
-struct mic_hw_ops mic_x100_ops = {
-	.aper_bar = MIC_X100_APER_BAR,
-	.mmio_bar = MIC_X100_MMIO_BAR,
-	.read_spad = mic_x100_read_spad,
-	.write_spad = mic_x100_write_spad,
-	.send_intr = mic_x100_send_intr,
-	.ack_interrupt = mic_x100_ack_interrupt,
-	.reset = mic_x100_hw_reset,
-	.reset_fw_ready = mic_x100_reset_fw_ready,
-	.is_fw_ready = mic_x100_is_fw_ready,
-	.send_firmware_intr = mic_x100_send_firmware_intr,
-	.load_mic_fw = mic_x100_load_firmware,
-	.get_postcode = mic_x100_get_postcode,
-};
-
-struct mic_hw_intr_ops mic_x100_intr_ops = {
-	.intr_init = mic_x100_hw_intr_init,
-	.enable_interrupts = mic_x100_enable_interrupts,
-	.disable_interrupts = mic_x100_disable_interrupts,
-	.program_msi_to_src_map = mic_x100_program_msi_to_src_map,
-	.read_msi_to_src_map = mic_x100_read_msi_to_src_map,
-};
diff --git a/drivers/misc/mic/host/mic_x100.h b/drivers/misc/mic/host/mic_x100.h
deleted file mode 100644
index 8b7daa1..0000000
--- a/drivers/misc/mic/host/mic_x100.h
+++ /dev/null
@@ -1,98 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * 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.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC Host driver.
- *
- */
-#ifndef _MIC_X100_HW_H_
-#define _MIC_X100_HW_H_
-
-#define MIC_X100_PCI_DEVICE_2250 0x2250
-#define MIC_X100_PCI_DEVICE_2251 0x2251
-#define MIC_X100_PCI_DEVICE_2252 0x2252
-#define MIC_X100_PCI_DEVICE_2253 0x2253
-#define MIC_X100_PCI_DEVICE_2254 0x2254
-#define MIC_X100_PCI_DEVICE_2255 0x2255
-#define MIC_X100_PCI_DEVICE_2256 0x2256
-#define MIC_X100_PCI_DEVICE_2257 0x2257
-#define MIC_X100_PCI_DEVICE_2258 0x2258
-#define MIC_X100_PCI_DEVICE_2259 0x2259
-#define MIC_X100_PCI_DEVICE_225a 0x225a
-#define MIC_X100_PCI_DEVICE_225b 0x225b
-#define MIC_X100_PCI_DEVICE_225c 0x225c
-#define MIC_X100_PCI_DEVICE_225d 0x225d
-#define MIC_X100_PCI_DEVICE_225e 0x225e
-
-#define MIC_X100_APER_BAR 0
-#define MIC_X100_MMIO_BAR 4
-
-#define MIC_X100_SBOX_BASE_ADDRESS 0x00010000
-#define MIC_X100_SBOX_SPAD0 0x0000AB20
-#define MIC_X100_SBOX_SICR0_DBR(x) ((x) & 0xf)
-#define MIC_X100_SBOX_SICR0_DMA(x) (((x) >> 8) & 0xff)
-#define MIC_X100_SBOX_SICE0_DBR(x) ((x) & 0xf)
-#define MIC_X100_SBOX_DBR_BITS(x) ((x) & 0xf)
-#define MIC_X100_SBOX_SICE0_DMA(x) (((x) >> 8) & 0xff)
-#define MIC_X100_SBOX_DMA_BITS(x) (((x) & 0xff) << 8)
-
-#define MIC_X100_SBOX_APICICR0 0x0000A9D0
-#define MIC_X100_SBOX_SICR0 0x00009004
-#define MIC_X100_SBOX_SICE0 0x0000900C
-#define MIC_X100_SBOX_SICC0 0x00009010
-#define MIC_X100_SBOX_SIAC0 0x00009014
-#define MIC_X100_SBOX_MSIXPBACR 0x00009084
-#define MIC_X100_SBOX_MXAR0 0x00009044
-#define MIC_X100_SBOX_SMPT00 0x00003100
-#define MIC_X100_SBOX_RDMASR0 0x0000B180
-
-#define MIC_X100_DOORBELL_IDX_START 0
-#define MIC_X100_NUM_DOORBELL 4
-#define MIC_X100_DMA_IDX_START 8
-#define MIC_X100_NUM_DMA 8
-#define MIC_X100_ERR_IDX_START 30
-#define MIC_X100_NUM_ERR 1
-
-#define MIC_X100_NUM_SBOX_IRQ 8
-#define MIC_X100_NUM_RDMASR_IRQ 8
-#define MIC_X100_RDMASR_IRQ_BASE 17
-#define MIC_X100_SPAD2_DOWNLOAD_STATUS(x) ((x) & 0x1)
-#define MIC_X100_SPAD2_APIC_ID(x)	(((x) >> 1) & 0x1ff)
-#define MIC_X100_SPAD2_DOWNLOAD_ADDR(x) ((x) & 0xfffff000)
-#define MIC_X100_SBOX_APICICR7 0x0000AA08
-#define MIC_X100_SBOX_RGCR 0x00004010
-#define MIC_X100_SBOX_SDBIC0 0x0000CC90
-#define MIC_X100_DOWNLOAD_INFO 2
-#define MIC_X100_FW_SIZE 5
-#define MIC_X100_POSTCODE 0x242c
-
-static const u16 mic_x100_intr_init[] = {
-		MIC_X100_DOORBELL_IDX_START,
-		MIC_X100_DMA_IDX_START,
-		MIC_X100_ERR_IDX_START,
-		MIC_X100_NUM_DOORBELL,
-		MIC_X100_NUM_DMA,
-		MIC_X100_NUM_ERR,
-};
-
-/* Host->Card(bootstrap) Interrupt Vector */
-#define MIC_X100_BSP_INTERRUPT_VECTOR 229
-
-extern struct mic_hw_ops mic_x100_ops;
-extern struct mic_smpt_ops mic_x100_smpt_ops;
-extern struct mic_hw_intr_ops mic_x100_intr_ops;
-
-#endif
diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c
index 3075492..68b7c77 100644
--- a/drivers/misc/phantom.c
+++ b/drivers/misc/phantom.c
@@ -395,7 +395,7 @@ static int phantom_probe(struct pci_dev *pdev,
 	iowrite32(0, pht->caddr + PHN_IRQCTL);
 	ioread32(pht->caddr + PHN_IRQCTL); /* PCI posting */
 	retval = request_irq(pdev->irq, phantom_isr,
-			IRQF_SHARED, "phantom", pht);
+			IRQF_SHARED | IRQF_DISABLED, "phantom", pht);
 	if (retval) {
 		dev_err(&pdev->dev, "can't establish ISR\n");
 		goto err_unmo;
diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c
index eda38cb..f84ff0c 100644
--- a/drivers/misc/pti.c
+++ b/drivers/misc/pti.c
@@ -892,6 +892,7 @@ static void pti_pci_remove(struct pci_dev *pdev)
 	}
 
 	iounmap(drv_data->pti_ioaddr);
+	pci_set_drvdata(pdev, NULL);
 	kfree(drv_data);
 	pci_release_region(pdev, 1);
 	pci_disable_device(pdev);
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 96853a0..83907c7 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -218,7 +218,7 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
 
 	pr_debug("%s", __func__);
 
-	reinit_completion(&kim_gdata->kim_rcvd);
+	INIT_COMPLETION(kim_gdata->kim_rcvd);
 	if (4 != st_int_write(kim_gdata->core_data, read_ver_cmd, 4)) {
 		pr_err("kim: couldn't write 4 bytes");
 		return -EIO;
@@ -229,7 +229,7 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
 		pr_err(" waiting for ver info- timed out ");
 		return -ETIMEDOUT;
 	}
-	reinit_completion(&kim_gdata->kim_rcvd);
+	INIT_COMPLETION(kim_gdata->kim_rcvd);
 	/* the positions 12 & 13 in the response buffer provide with the
 	 * chip, major & minor numbers
 	 */
@@ -362,7 +362,7 @@ static long download_firmware(struct kim_data_s *kim_gdata)
 			/* reinit completion before sending for the
 			 * relevant wait
 			 */
-			reinit_completion(&kim_gdata->kim_rcvd);
+			INIT_COMPLETION(kim_gdata->kim_rcvd);
 
 			/*
 			 * Free space found in uart buffer, call st_int_write
@@ -398,7 +398,7 @@ static long download_firmware(struct kim_data_s *kim_gdata)
 				release_firmware(kim_gdata->fw_entry);
 				return -ETIMEDOUT;
 			}
-			reinit_completion(&kim_gdata->kim_rcvd);
+			INIT_COMPLETION(kim_gdata->kim_rcvd);
 			break;
 		case ACTION_DELAY:	/* sleep */
 			pr_info("sleep command in scr");
@@ -474,7 +474,7 @@ long st_kim_start(void *kim_data)
 		gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
 		mdelay(100);
 		/* re-initialize the completion */
-		reinit_completion(&kim_gdata->ldisc_installed);
+		INIT_COMPLETION(kim_gdata->ldisc_installed);
 		/* send notification to UIM */
 		kim_gdata->ldisc_install = 1;
 		pr_info("ldisc_install = 1");
@@ -525,7 +525,7 @@ long st_kim_stop(void *kim_data)
 		kim_gdata->kim_pdev->dev.platform_data;
 	struct tty_struct	*tty = kim_gdata->core_data->tty;
 
-	reinit_completion(&kim_gdata->ldisc_installed);
+	INIT_COMPLETION(kim_gdata->ldisc_installed);
 
 	if (tty) {	/* can be called before ldisc is installed */
 		/* Flush any pending characters in the driver and discipline. */
diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c
index 83da711..9b23722 100644
--- a/drivers/misc/ti_dac7512.c
+++ b/drivers/misc/ti_dac7512.c
@@ -22,7 +22,9 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/spi/spi.h>
-#include <linux/of.h>
+
+#define DAC7512_DRV_NAME	"dac7512"
+#define DRIVER_VERSION		"1.0"
 
 static ssize_t dac7512_store_val(struct device *dev,
 				 struct device_attribute *attr,
@@ -73,29 +75,13 @@ static int dac7512_remove(struct spi_device *spi)
 	return 0;
 }
 
-static const struct spi_device_id dac7512_id_table[] = {
-	{ "dac7512", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(spi, dac7512_id_table);
-
-#ifdef CONFIG_OF
-static const struct of_device_id dac7512_of_match[] = {
-	{ .compatible = "ti,dac7512", },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, dac7512_of_match);
-#endif
-
 static struct spi_driver dac7512_driver = {
 	.driver = {
-		.name	= "dac7512",
+		.name	= DAC7512_DRV_NAME,
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(dac7512_of_match),
 	},
 	.probe	= dac7512_probe,
 	.remove	= dac7512_remove,
-	.id_table = dac7512_id_table,
 };
 
 module_spi_driver(dac7512_driver);
@@ -103,3 +89,4 @@ module_spi_driver(dac7512_driver);
 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
 MODULE_DESCRIPTION("DAC7512 16-bit DAC");
 MODULE_LICENSE("GPL v2");
+MODULE_VERSION(DRIVER_VERSION);
diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
index a606c89..f8d66543 100644
--- a/drivers/misc/tifm_7xx1.c
+++ b/drivers/misc/tifm_7xx1.c
@@ -356,10 +356,8 @@ static int tifm_7xx1_probe(struct pci_dev *dev,
 	pci_set_drvdata(dev, fm);
 
 	fm->addr = pci_ioremap_bar(dev, 0);
-	if (!fm->addr) {
-		rc = -ENODEV;
+	if (!fm->addr)
 		goto err_out_free;
-	}
 
 	rc = request_irq(dev->irq, tifm_7xx1_isr, IRQF_SHARED, DRIVER_NAME, fm);
 	if (rc)
@@ -380,6 +378,7 @@ err_out_irq:
 err_out_unmap:
 	iounmap(fm->addr);
 err_out_free:
+	pci_set_drvdata(dev, NULL);
 	tifm_free_adapter(fm);
 err_out_int:
 	pci_intx(dev, 0);
@@ -406,6 +405,8 @@ static void tifm_7xx1_remove(struct pci_dev *dev)
 	for (cnt = 0; cnt < fm->num_sockets; cnt++)
 		tifm_7xx1_sock_power_off(tifm_7xx1_sock_addr(fm->addr, cnt));
 
+	pci_set_drvdata(dev, NULL);
+
 	iounmap(fm->addr);
 	pci_intx(dev, 0);
 	pci_release_regions(dev);
diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c
index a511b2a..0ab7c92 100644
--- a/drivers/misc/tifm_core.c
+++ b/drivers/misc/tifm_core.c
@@ -145,17 +145,15 @@ static ssize_t type_show(struct device *dev, struct device_attribute *attr,
 	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
 	return sprintf(buf, "%x", sock->type);
 }
-static DEVICE_ATTR_RO(type);
 
-static struct attribute *tifm_dev_attrs[] = {
-	&dev_attr_type.attr,
-	NULL,
+static struct device_attribute tifm_dev_attrs[] = {
+	__ATTR(type, S_IRUGO, type_show, NULL),
+	__ATTR_NULL
 };
-ATTRIBUTE_GROUPS(tifm_dev);
 
 static struct bus_type tifm_bus_type = {
 	.name      = "tifm",
-	.dev_groups = tifm_dev_groups,
+	.dev_attrs = tifm_dev_attrs,
 	.match     = tifm_bus_match,
 	.uevent    = tifm_uevent,
 	.probe     = tifm_device_probe,
diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c
index c98b03b..b3a2b76 100644
--- a/drivers/misc/vmw_vmci/vmci_guest.c
+++ b/drivers/misc/vmw_vmci/vmci_guest.c
@@ -649,7 +649,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
 	return 0;
 
 err_free_irq:
-	free_irq(vmci_dev->irq, vmci_dev);
+	free_irq(vmci_dev->irq, &vmci_dev);
 	tasklet_kill(&vmci_dev->datagram_tasklet);
 	tasklet_kill(&vmci_dev->bm_tasklet);
 
diff --git a/drivers/misc/vmw_vmci/vmci_host.c b/drivers/misc/vmw_vmci/vmci_host.c
index 1723a6e..d4722b3 100644
--- a/drivers/misc/vmw_vmci/vmci_host.c
+++ b/drivers/misc/vmw_vmci/vmci_host.c
@@ -243,7 +243,11 @@ static int vmci_host_setup_notify(struct vmci_ctx *context,
 	/*
 	 * Lock physical page backing a given user VA.
 	 */
-	retval = get_user_pages_fast(PAGE_ALIGN(uva), 1, 1, &page);
+	down_read(&current->mm->mmap_sem);
+	retval = get_user_pages(current, current->mm,
+				PAGE_ALIGN(uva),
+				1, 1, 0, &page, NULL);
+	up_read(&current->mm->mmap_sem);
 	if (retval != 1)
 		return VMCI_ERROR_GENERIC;
 
diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c
index 1b7b303..a0515a6 100644
--- a/drivers/misc/vmw_vmci/vmci_queue_pair.c
+++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c
@@ -732,9 +732,13 @@ static int qp_host_get_user_memory(u64 produce_uva,
 	int retval;
 	int err = VMCI_SUCCESS;
 
-	retval = get_user_pages_fast((uintptr_t) produce_uva,
-				     produce_q->kernel_if->num_pages, 1,
-				     produce_q->kernel_if->u.h.header_page);
+	down_write(&current->mm->mmap_sem);
+	retval = get_user_pages(current,
+				current->mm,
+				(uintptr_t) produce_uva,
+				produce_q->kernel_if->num_pages,
+				1, 0,
+				produce_q->kernel_if->u.h.header_page, NULL);
 	if (retval < produce_q->kernel_if->num_pages) {
 		pr_warn("get_user_pages(produce) failed (retval=%d)", retval);
 		qp_release_pages(produce_q->kernel_if->u.h.header_page,
@@ -743,9 +747,12 @@ static int qp_host_get_user_memory(u64 produce_uva,
 		goto out;
 	}
 
-	retval = get_user_pages_fast((uintptr_t) consume_uva,
-				     consume_q->kernel_if->num_pages, 1,
-				     consume_q->kernel_if->u.h.header_page);
+	retval = get_user_pages(current,
+				current->mm,
+				(uintptr_t) consume_uva,
+				consume_q->kernel_if->num_pages,
+				1, 0,
+				consume_q->kernel_if->u.h.header_page, NULL);
 	if (retval < consume_q->kernel_if->num_pages) {
 		pr_warn("get_user_pages(consume) failed (retval=%d)", retval);
 		qp_release_pages(consume_q->kernel_if->u.h.header_page,
@@ -756,6 +763,8 @@ static int qp_host_get_user_memory(u64 produce_uva,
 	}
 
  out:
+	up_write(&current->mm->mmap_sem);
+
 	return err;
 }