drivers/crypto/nx/nx_debugfs.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /**
   3  * debugfs routines supporting the Power 7+ Nest Accelerators driver
   4  *
   5  * Copyright (C) 2011-2012 International Business Machines Inc.
   6  *
   7  * Author: Kent Yoder <yoder1@us.ibm.com>
   8  */
   9
  10 #include <linux/device.h>
  11 #include <linux/kobject.h>
  12 #include <linux/string.h>
  13 #include <linux/debugfs.h>
  14 #include <linux/module.h>
  15 #include <linux/init.h>
  16 #include <linux/crypto.h>
  17 #include <crypto/hash.h>
  18 #include <asm/vio.h>
  19
  20 #include "nx_csbcpb.h"
  21 #include "nx.h"
  22
  23 #ifdef CONFIG_DEBUG_FS
  24
  25 /*
  26  * debugfs
  27  *
  28  * For documentation on these attributes, please see:
  29  *
  30  * Documentation/ABI/testing/debugfs-pfo-nx-crypto
  31  */
  32
  33 int nx_debugfs_init(struct nx_crypto_driver *drv)
  34 {
  35         struct nx_debugfs *dfs = &drv->dfs;
  36
  37         dfs->dfs_root = debugfs_create_dir(NX_NAME, NULL);
  38
  39         dfs->dfs_aes_ops =
  40                 debugfs_create_u32("aes_ops",
  41                                    S_IRUSR | S_IRGRP | S_IROTH,
  42                                    dfs->dfs_root, (u32 *)&drv->stats.aes_ops);
  43         dfs->dfs_sha256_ops =
  44                 debugfs_create_u32("sha256_ops",
  45                                    S_IRUSR | S_IRGRP | S_IROTH,
  46                                    dfs->dfs_root,
  47                                    (u32 *)&drv->stats.sha256_ops);
  48         dfs->dfs_sha512_ops =
  49                 debugfs_create_u32("sha512_ops",
  50                                    S_IRUSR | S_IRGRP | S_IROTH,
  51                                    dfs->dfs_root,
  52                                    (u32 *)&drv->stats.sha512_ops);
  53         dfs->dfs_aes_bytes =
  54                 debugfs_create_u64("aes_bytes",
  55                                    S_IRUSR | S_IRGRP | S_IROTH,
  56                                    dfs->dfs_root,
  57                                    (u64 *)&drv->stats.aes_bytes);
  58         dfs->dfs_sha256_bytes =
  59                 debugfs_create_u64("sha256_bytes",
  60                                    S_IRUSR | S_IRGRP | S_IROTH,
  61                                    dfs->dfs_root,
  62                                    (u64 *)&drv->stats.sha256_bytes);
  63         dfs->dfs_sha512_bytes =
  64                 debugfs_create_u64("sha512_bytes",
  65                                    S_IRUSR | S_IRGRP | S_IROTH,
  66                                    dfs->dfs_root,
  67                                    (u64 *)&drv->stats.sha512_bytes);
  68         dfs->dfs_errors =
  69                 debugfs_create_u32("errors",
  70                                    S_IRUSR | S_IRGRP | S_IROTH,
  71                                    dfs->dfs_root, (u32 *)&drv->stats.errors);
  72         dfs->dfs_last_error =
  73                 debugfs_create_u32("last_error",
  74                                    S_IRUSR | S_IRGRP | S_IROTH,
  75                                    dfs->dfs_root,
  76                                    (u32 *)&drv->stats.last_error);
  77         dfs->dfs_last_error_pid =
  78                 debugfs_create_u32("last_error_pid",
  79                                    S_IRUSR | S_IRGRP | S_IROTH,
  80                                    dfs->dfs_root,
  81                                    (u32 *)&drv->stats.last_error_pid);
  82         return 0;
  83 }
  84
  85 void
  86 nx_debugfs_fini(struct nx_crypto_driver *drv)
  87 {
  88         debugfs_remove_recursive(drv->dfs.dfs_root);
  89 }
  90
  91 #endif