include/trace/events/random.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #undef TRACE_SYSTEM
   3 #define TRACE_SYSTEM random
   4
   5 #if !defined(_TRACE_RANDOM_H) || defined(TRACE_HEADER_MULTI_READ)
   6 #define _TRACE_RANDOM_H
   7
   8 #include <linux/writeback.h>
   9 #include <linux/tracepoint.h>
  10
  11 TRACE_EVENT(add_device_randomness,
  12         TP_PROTO(int bytes, unsigned long IP),
  13
  14         TP_ARGS(bytes, IP),
  15
  16         TP_STRUCT__entry(
  17                 __field(          int,  bytes                   )
  18                 __field(unsigned long,  IP                      )
  19         ),
  20
  21         TP_fast_assign(
  22                 __entry->bytes          = bytes;
  23                 __entry->IP             = IP;
  24         ),
  25
  26         TP_printk("bytes %d caller %pS",
  27                 __entry->bytes, (void *)__entry->IP)
  28 );
  29
  30 DECLARE_EVENT_CLASS(random__mix_pool_bytes,
  31         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  32
  33         TP_ARGS(pool_name, bytes, IP),
  34
  35         TP_STRUCT__entry(
  36                 __field( const char *,  pool_name               )
  37                 __field(          int,  bytes                   )
  38                 __field(unsigned long,  IP                      )
  39         ),
  40
  41         TP_fast_assign(
  42                 __entry->pool_name      = pool_name;
  43                 __entry->bytes          = bytes;
  44                 __entry->IP             = IP;
  45         ),
  46
  47         TP_printk("%s pool: bytes %d caller %pS",
  48                   __entry->pool_name, __entry->bytes, (void *)__entry->IP)
  49 );
  50
  51 DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes,
  52         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  53
  54         TP_ARGS(pool_name, bytes, IP)
  55 );
  56
  57 DEFINE_EVENT(random__mix_pool_bytes, mix_pool_bytes_nolock,
  58         TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
  59
  60         TP_ARGS(pool_name, bytes, IP)
  61 );
  62
  63 TRACE_EVENT(credit_entropy_bits,
  64         TP_PROTO(const char *pool_name, int bits, int entropy_count,
  65                  unsigned long IP),
  66
  67         TP_ARGS(pool_name, bits, entropy_count, IP),
  68
  69         TP_STRUCT__entry(
  70                 __field( const char *,  pool_name               )
  71                 __field(          int,  bits                    )
  72                 __field(          int,  entropy_count           )
  73                 __field(unsigned long,  IP                      )
  74         ),
  75
  76         TP_fast_assign(
  77                 __entry->pool_name      = pool_name;
  78                 __entry->bits           = bits;
  79                 __entry->entropy_count  = entropy_count;
  80                 __entry->IP             = IP;
  81         ),
  82
  83         TP_printk("%s pool: bits %d entropy_count %d caller %pS",
  84                   __entry->pool_name, __entry->bits,
  85                   __entry->entropy_count, (void *)__entry->IP)
  86 );
  87
  88 TRACE_EVENT(debit_entropy,
  89         TP_PROTO(const char *pool_name, int debit_bits),
  90
  91         TP_ARGS(pool_name, debit_bits),
  92
  93         TP_STRUCT__entry(
  94                 __field( const char *,  pool_name               )
  95                 __field(          int,  debit_bits              )
  96         ),
  97
  98         TP_fast_assign(
  99                 __entry->pool_name      = pool_name;
 100                 __entry->debit_bits     = debit_bits;
 101         ),
 102
 103         TP_printk("%s: debit_bits %d", __entry->pool_name,
 104                   __entry->debit_bits)
 105 );
 106
 107 TRACE_EVENT(add_input_randomness,
 108         TP_PROTO(int input_bits),
 109
 110         TP_ARGS(input_bits),
 111
 112         TP_STRUCT__entry(
 113                 __field(          int,  input_bits              )
 114         ),
 115
 116         TP_fast_assign(
 117                 __entry->input_bits     = input_bits;
 118         ),
 119
 120         TP_printk("input_pool_bits %d", __entry->input_bits)
 121 );
 122
 123 TRACE_EVENT(add_disk_randomness,
 124         TP_PROTO(dev_t dev, int input_bits),
 125
 126         TP_ARGS(dev, input_bits),
 127
 128         TP_STRUCT__entry(
 129                 __field(        dev_t,  dev                     )
 130                 __field(          int,  input_bits              )
 131         ),
 132
 133         TP_fast_assign(
 134                 __entry->dev            = dev;
 135                 __entry->input_bits     = input_bits;
 136         ),
 137
 138         TP_printk("dev %d,%d input_pool_bits %d", MAJOR(__entry->dev),
 139                   MINOR(__entry->dev), __entry->input_bits)
 140 );
 141
 142 DECLARE_EVENT_CLASS(random__get_random_bytes,
 143         TP_PROTO(int nbytes, unsigned long IP),
 144
 145         TP_ARGS(nbytes, IP),
 146
 147         TP_STRUCT__entry(
 148                 __field(          int,  nbytes                  )
 149                 __field(unsigned long,  IP                      )
 150         ),
 151
 152         TP_fast_assign(
 153                 __entry->nbytes         = nbytes;
 154                 __entry->IP             = IP;
 155         ),
 156
 157         TP_printk("nbytes %d caller %pS", __entry->nbytes, (void *)__entry->IP)
 158 );
 159
 160 DEFINE_EVENT(random__get_random_bytes, get_random_bytes,
 161         TP_PROTO(int nbytes, unsigned long IP),
 162
 163         TP_ARGS(nbytes, IP)
 164 );
 165
 166 DEFINE_EVENT(random__get_random_bytes, get_random_bytes_arch,
 167         TP_PROTO(int nbytes, unsigned long IP),
 168
 169         TP_ARGS(nbytes, IP)
 170 );
 171
 172 DECLARE_EVENT_CLASS(random__extract_entropy,
 173         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 174                  unsigned long IP),
 175
 176         TP_ARGS(pool_name, nbytes, entropy_count, IP),
 177
 178         TP_STRUCT__entry(
 179                 __field( const char *,  pool_name               )
 180                 __field(          int,  nbytes                  )
 181                 __field(          int,  entropy_count           )
 182                 __field(unsigned long,  IP                      )
 183         ),
 184
 185         TP_fast_assign(
 186                 __entry->pool_name      = pool_name;
 187                 __entry->nbytes         = nbytes;
 188                 __entry->entropy_count  = entropy_count;
 189                 __entry->IP             = IP;
 190         ),
 191
 192         TP_printk("%s pool: nbytes %d entropy_count %d caller %pS",
 193                   __entry->pool_name, __entry->nbytes, __entry->entropy_count,
 194                   (void *)__entry->IP)
 195 );
 196
 197
 198 DEFINE_EVENT(random__extract_entropy, extract_entropy,
 199         TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 200                  unsigned long IP),
 201
 202         TP_ARGS(pool_name, nbytes, entropy_count, IP)
 203 );
 204
 205 TRACE_EVENT(urandom_read,
 206         TP_PROTO(int got_bits, int pool_left, int input_left),
 207
 208         TP_ARGS(got_bits, pool_left, input_left),
 209
 210         TP_STRUCT__entry(
 211                 __field(          int,  got_bits                )
 212                 __field(          int,  pool_left               )
 213                 __field(          int,  input_left              )
 214         ),
 215
 216         TP_fast_assign(
 217                 __entry->got_bits       = got_bits;
 218                 __entry->pool_left      = pool_left;
 219                 __entry->input_left     = input_left;
 220         ),
 221
 222         TP_printk("got_bits %d nonblocking_pool_entropy_left %d "
 223                   "input_entropy_left %d", __entry->got_bits,
 224                   __entry->pool_left, __entry->input_left)
 225 );
 226
 227 TRACE_EVENT(prandom_u32,
 228
 229         TP_PROTO(unsigned int ret),
 230
 231         TP_ARGS(ret),
 232
 233         TP_STRUCT__entry(
 234                 __field(   unsigned int, ret)
 235         ),
 236
 237         TP_fast_assign(
 238                 __entry->ret = ret;
 239         ),
 240
 241         TP_printk("ret=%u" , __entry->ret)
 242 );
 243
 244 #endif /* _TRACE_RANDOM_H */
 245
 246 /* This part must be outside protection */
 247 #include <trace/define_trace.h>