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[J-u-boot.git] / cmd / time.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2011 The Chromium OS Authors.
4  */
5
6 #include <command.h>
7
8 static void report_time(ulong cycles)
9 {
10         ulong minutes, seconds, milliseconds;
11         ulong total_seconds, remainder;
12
13         total_seconds = cycles / CONFIG_SYS_HZ;
14         remainder = cycles % CONFIG_SYS_HZ;
15         minutes = total_seconds / 60;
16         seconds = total_seconds % 60;
17         /* approximate millisecond value */
18         milliseconds = (remainder * 1000 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ;
19
20         printf("\ntime:");
21         if (minutes)
22                 printf(" %lu minutes,", minutes);
23         printf(" %lu.%03lu seconds\n", seconds, milliseconds);
24 }
25
26 static int do_time(struct cmd_tbl *cmdtp, int flag, int argc,
27                    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");
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