drivers/dax/pmem/pmem.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2016 - 2018 Intel Corporation. All rights reserved. */
   3 #include <linux/percpu-refcount.h>
   4 #include <linux/memremap.h>
   5 #include <linux/module.h>
   6 #include <linux/pfn_t.h>
   7 #include <linux/nd.h>
   8 #include "../bus.h"
   9
  10 static int dax_pmem_probe(struct device *dev)
  11 {
  12         return PTR_ERR_OR_ZERO(__dax_pmem_probe(dev, DEV_DAX_BUS));
  13 }
  14
  15 static struct nd_device_driver dax_pmem_driver = {
  16         .probe = dax_pmem_probe,
  17         .drv = {
  18                 .name = "dax_pmem",
  19         },
  20         .type = ND_DRIVER_DAX_PMEM,
  21 };
  22
  23 static int __init dax_pmem_init(void)
  24 {
  25         return nd_driver_register(&dax_pmem_driver);
  26 }
  27 module_init(dax_pmem_init);
  28
  29 static void __exit dax_pmem_exit(void)
  30 {
  31         driver_unregister(&dax_pmem_driver.drv);
  32 }
  33 module_exit(dax_pmem_exit);
  34
  35 MODULE_LICENSE("GPL v2");
  36 MODULE_AUTHOR("Intel Corporation");
  37 #if !IS_ENABLED(CONFIG_DEV_DAX_PMEM_COMPAT)
  38 /* For compat builds, don't load this module by default */
  39 MODULE_ALIAS_ND_DEVICE(ND_DEVICE_DAX_PMEM);
  40 #endif