cmd/time.c

   1 /*
   2  * Copyright (c) 2011 The Chromium OS Authors.
   3  * SPDX-License-Identifier:     GPL-2.0+
   4  */
   5
   6 #include <common.h>
   7 #include <command.h>
   8
   9 static void report_time(ulong cycles)
  10 {
  11         ulong minutes, seconds, milliseconds;
  12         ulong total_seconds, remainder;
  13
  14         total_seconds = cycles / CONFIG_SYS_HZ;
  15         remainder = cycles % CONFIG_SYS_HZ;
  16         minutes = total_seconds / 60;
  17         seconds = total_seconds % 60;
  18         /* approximate millisecond value */
  19         milliseconds = (remainder * 1000 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ;
  20
  21         printf("\ntime:");
  22         if (minutes)
  23                 printf(" %lu minutes,", minutes);
  24         printf(" %lu.%03lu seconds\n", seconds, milliseconds);
  25 }
  26
  27 static int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  28 {
  29         ulong cycles = 0;
  30         int retval = 0;
  31         int repeatable = 0;
  32
  33         if (argc == 1)
  34                 return CMD_RET_USAGE;
  35
  36         retval = cmd_process(0, argc - 1, argv + 1, &repeatable, &cycles);
  37         report_time(cycles);
  38
  39         return retval;
  40 }
  41
  42 U_BOOT_CMD(time, CONFIG_SYS_MAXARGS, 0, do_time,
  43                 "run commands and summarize execution time",
  44                 "command [args...]\n");