blob: 6dbdbbfbe7a3eeeef03d1880d53817d76b901a62 [file] [log] [blame]
Che-liang Chiouca366d02011-10-06 23:40:48 +00001/*
2 * Copyright (c) 2011 The Chromium OS Authors.
3 * See file CREDITS for list of people who contributed to this
4 * project.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; either version 2 of
9 * the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
19 * MA 02111-1307 USA
20 */
21
22#include <common.h>
23#include <command.h>
24
25/*
26 * TODO(clchiou): This function actually minics the bottom-half of the
27 * run_command() function. Since this function has ARM-dependent timer
28 * codes, we cannot merge it with the run_command() for now.
29 */
30static int run_command_and_time_it(int flag, int argc, char * const argv[],
31 ulong *cycles)
32{
33 cmd_tbl_t *cmdtp = find_cmd(argv[0]);
34 int retval = 0;
35
36 if (!cmdtp) {
37 printf("%s: command not found\n", argv[0]);
38 return 1;
39 }
40 if (argc > cmdtp->maxargs)
Simon Glass4c12eeb2011-12-10 08:44:01 +000041 return CMD_RET_USAGE;
Che-liang Chiouca366d02011-10-06 23:40:48 +000042
43 /*
44 * TODO(clchiou): get_timer_masked() is only defined in certain ARM
45 * boards. We could use the new timer API that Graeme is proposing
46 * so that this piece of code would be arch-independent.
47 */
48 *cycles = get_timer_masked();
49 retval = cmdtp->cmd(cmdtp, flag, argc, argv);
50 *cycles = get_timer_masked() - *cycles;
51
52 return retval;
53}
54
55static void report_time(ulong cycles)
56{
57 ulong minutes, seconds, milliseconds;
58 ulong total_seconds, remainder;
59
60 total_seconds = cycles / CONFIG_SYS_HZ;
61 remainder = cycles % CONFIG_SYS_HZ;
62 minutes = total_seconds / 60;
63 seconds = total_seconds % 60;
64 /* approximate millisecond value */
65 milliseconds = (remainder * 1000 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ;
66
67 printf("\ntime:");
68 if (minutes)
69 printf(" %lu minutes,", minutes);
70 printf(" %lu.%03lu seconds, %lu ticks\n",
71 seconds, milliseconds, cycles);
72}
73
74static int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
75{
76 ulong cycles = 0;
77 int retval = 0;
78
79 if (argc == 1)
Simon Glass4c12eeb2011-12-10 08:44:01 +000080 return CMD_RET_USAGE;
Che-liang Chiouca366d02011-10-06 23:40:48 +000081
82 retval = run_command_and_time_it(0, argc - 1, argv + 1, &cycles);
83 report_time(cycles);
84
85 return retval;
86}
87
88U_BOOT_CMD(time, CONFIG_SYS_MAXARGS, 0, do_time,
89 "run commands and summarize execution time",
90 "command [args...]\n");