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| /*
| * (C) Copyright 2015 Google, Inc
| *
| * SPDX-License-Identifier: GPL-2.0+
| */
|
| #include <common.h>
| #include <command.h>
| #include <div64.h>
| #include "dhry.h"
|
| static int do_dhry(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
| {
| ulong start, duration, vax_mips;
| u64 dhry_per_sec;
| int iterations = 1000000;
|
| if (argc > 1)
| iterations = simple_strtoul(argv[1], NULL, 10);
|
| start = get_timer(0);
| dhry(iterations);
| duration = get_timer(start);
| dhry_per_sec = lldiv(iterations * 1000ULL, duration);
| vax_mips = lldiv(dhry_per_sec, 1757);
| printf("%d iterations in %lu ms: %lu/s, %lu DMIPS\n", iterations,
| duration, (ulong)dhry_per_sec, vax_mips);
|
| return 0;
| }
|
| U_BOOT_CMD(
| dhry, 2, 1, do_dhry,
| "[iterations] - run dhrystone benchmark",
| "\n - run the Dhrystone 2.1 benchmark, a rough measure of CPU speed\n"
| );
|
|
