linux-imx

/*

 * Copyright(c) 2013-2015 Intel Corporation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License 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.

 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/libnvdimm.h>

#include <linux/sched/mm.h>

#include <linux/vmalloc.h>

#include <linux/uaccess.h>

#include <linux/module.h>

#include <linux/blkdev.h>

#include <linux/fcntl.h>

#include <linux/async.h>

#include <linux/genhd.h>

#include <linux/ndctl.h>

#include <linux/sched.h>

#include <linux/slab.h>

#include <linux/cpu.h>

#include <linux/fs.h>

#include <linux/io.h>

#include <linux/mm.h>

#include <linux/nd.h>

#include "nd-core.h"

#include "nd.h"

#include "pfn.h"

​

int nvdimm_major;

static int nvdimm_bus_major;

static struct class *nd_class;

static DEFINE_IDA(nd_ida);

​

static int to_nd_device_type(struct device *dev)

{

    if (is_nvdimm(dev))

        return ND_DEVICE_DIMM;

    else if (is_memory(dev))

        return ND_DEVICE_REGION_PMEM;

    else if (is_nd_blk(dev))

        return ND_DEVICE_REGION_BLK;

    else if (is_nd_dax(dev))

        return ND_DEVICE_DAX_PMEM;

    else if (is_nd_region(dev->parent))

        return nd_region_to_nstype(to_nd_region(dev->parent));

​

    return 0;

}

​

static int nvdimm_bus_uevent(struct device *dev, struct kobj_uevent_env *env)

{

    return add_uevent_var(env, "MODALIAS=" ND_DEVICE_MODALIAS_FMT,

            to_nd_device_type(dev));

}

​

static struct module *to_bus_provider(struct device *dev)

{