At present samus reports about 5600 DMIPS. With the default iteration count
this is OK, but if 10 million runs are performed it overflows. Fix it.
Signed-off-by: Simon Glass <s...@chromium.org>
---
lib/dhry/cmd_dhry.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/lib/dhry/cmd_dhry.c b/lib/dhry/cmd_dhry.c
index 5dc191e..d7e1e6a 100644
--- a/lib/dhry/cmd_dhry.c
+++ b/lib/dhry/cmd_dhry.c
@@ -6,11 +6,13 @@
#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, dhry_per_sec, vax_mips;
+ ulong start, duration, vax_mips;
+ u64 dhry_per_sec;
int iterations = 1000000;
if (argc > 1)
@@ -19,10 +21,10 @@ static int do_dhry(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
start = get_timer(0);
dhry(iterations);
duration = get_timer(start);
- dhry_per_sec = iterations * 1000 / duration;
+ dhry_per_sec = lldiv(iterations * 1000ULL, duration);
vax_mips = dhry_per_sec / 1757;
printf("%d iterations in %lu ms: %lu/s, %lu DMIPS\n", iterations,
- duration, dhry_per_sec, vax_mips);
+ duration, (ulong)dhry_per_sec, vax_mips);
return 0;
}
--
2.7.0.rc3.207.g0ac5344
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